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typical small scale gold mining plant

gold mining business plan [sample template for 2021]

gold mining business plan [sample template for 2021]

Do you want to start a gold mining company? If YES, here is a detailed sample small scale gold mining business plan template & feasibility report.There are money spinning businesses that are monopolized by wealthy people and accredited investors and one of such businesses is operating a gold ore mine.

The gold ore mining business is indeed a profitable business, but you must be ready to scale through very high barriers before launching this type of business. If you have conducted your market research and feasibility studies, the next step to follow is to write a detailed blueprint of how you intend raising your seed capital, setting up the business, managing the flow of the business, sorting out tax and marketing your services amongst others.

Players in the Gold and Silver Ore Mining industry primarily mine gold and silver-bearing ores. Mining activities include the development of mine sites and the on-site processing of ore into a concentrate or bullion. Gold and silver ore mining companies typically retain ownership of the semi-processed gold or silver products and pay for further refining on a toll-charge basis.

If you are an observer of the Gold and Silver Ore Mining industry, you will notice that the industry revenue is largely a function of production volume and commodity prices. For the Gold and Silver Ore Mining industry, output volumes and sales prices for both gold and silver have fallen over the past five years, leading to significant industry contraction.

Meanwhile, demand from manufacturers of electrical equipment, electronic products and jewelry, which comprises the industrys primary markets, has stagnated or even declined over the past five years as a result of high import penetration and input costs. Overall, industry revenue is expected to decline over the five years to 2017.

In the united states of America, the industry generates over $9 billion annually from more than 162 gold and silver ore mining companies scattered all around the country. The industry is responsible for the employment of over 14,282 people. Experts project the industry to grow at a -9.0 percent annual rate. Barrick, Kinross Gold and Newmont are the market leaders in this industry in the United States of America; they have the lion market share in the industry.

A recent report published by IBISWorld shows that the five years to 2017 have been volatile for the Gold and Silver Ore Mining industry. The report further stated that the industry revenue spiked until 2012, proving this industry to be one of the few that benefited from the financial crisis, as well as the years of economic instability that followed.

In times of economic turmoil, investors look to buy safe-haven assets such as gold and silver, causing gold and silver prices to surge. This helped industry revenue to grow through to 2012. In fact, strong demand from domestic and international investors drove gold prices to all-time highs. Furthermore, an undersupply of gold due to decreased industry production in the 2000s further contributed to the spike in prices.

If you are considering starting a gold mining business whether on a small scale or on a large scale, then you should ensure that you obtain all the necessary permits from the local, state and federal government. The truth is that this type of business does pretty well when it is strategically positioned.

In summary, gold mining business is a profitable business venture and it is open for any aspiring entrepreneur to come in and establish his or her business; you can choose to start on a small scale on a large scale with robust distribution networks all across the United States of America and other countries of the world.

Our business goal as a gold mining company is to become the number one choice of jewelry making companies and other companies that make use of gold and silver in the United States and other countries of the world. As a business, we are willing to go the extra mile to invest in owning our own environmentally friendly gold and silver mines and also to hire efficient and dedicated employees.

We have been able to secure permits and licenses from all relevant departments both at the local government and state level in the United States of America. TTK Gold Mining Company is set to redefine how a standard gold mining business should be run all across the world. This is why we have put plans in place for continuous training of all our staff.

The demand for gold and silver is not going to plummet any time soon which is why we have put plans in place to continue to explore all available market around the United States and other countries of the world. In the nearest future, we will ensure that we create a wide range of distribution channels all across the United States of America and other countries of the world.

TTK Gold Mining Company will at all-time demonstrate her commitment to sustainability, both individually and as a firm, by actively participating in our communities and integrating sustainable business practices wherever possible. We will ensure that we hold ourselves accountable to the highest standards by meeting our customers needs precisely and completely.

TTK Gold Mining Company is a partnership business that will be jointly owned by Tony Kenneth, Tyson Barker and Karis Murphy. Tony Kenneth who is the Chief Executive Officer of the Company has a Degree in Mining Technology with over 10 years experience working in related industry as a senior manager cum mining engineer prior to starting TTK Gold Mining Company. He will be working with a team of professionals to build the business and grow it to enviably heights.

TTK Gold Mining Company is established with the aim of maximizing profits in the gold and silver mining industry. We want to compete favorably with leaders in the industry which is why we have but in place a competent team that will ensure that our products are of high standard.

We will work hard to ensure that TTK Gold Mining Company is not just accepted in the United States of America, but also in other countries of the world where we intend supplying our products. Our products are listed below;

As part of our plan to build a top flight gold mining company in Boise County Idaho that will favorably compete with leaders in the industry, we have perfected plans to get it right from the onset which is why we are going the extra mile to ensure that we have competent employees to occupy all the available positions in our company.

Due to our drive for excellence when it comes to running a standard gold mining company, we were able to engage some of the finest business consultants in the United States of America to look through our business concept and together we were able to critically examine the prospect of the business and to assess ourselves to be sure we have what it takes to run a standard gold mining business that can compete favorably in the industry.

In view of that, we were able to take stock of our strengths, our weakness, our opportunities and also the threats that we are likely going to be exposed to in the United States of America. Here is a of what we got from the critically conducted SWOT Analysis for TTK Gold Mining Company;

Another factor that counts to our advantage is the background of our Chief Executive Office; he has a robust experience in the industry and also a pretty good academic qualification to match the experience acquired which has placed him amongst the top flight players in the gold and silver mining industry. We are not ignoring the fact that our team of highly qualified and dedicated workers will also serve as strength for our organization.

We do not take for granted the facts that we have weaknesses. In fact, the reality that we are setting up a gold mining company in the United States might pose a little challenge. In essence our chosen location might be our weakness.

The opportunities available to us are unlimited. There are loads of jewelry making companies and other manufacturing companies that make use of raw gold all across the globe and all what we are going to do to push our products to them is already perfected.

The threat that is likely going to confront us is the fact that we are competing with already established gold mining companies in the United States and other countries of the world. Of course, they will compete with us in winning over the available market. Another threat that we are likely going to face is unfavorable government policies and economic downturn.

Gold and silver mining is a lucrative business in the United States and Canada and in looking at the trends of these mega countries over the course of golds bull, it is apparent that the results vary quite substantially; and China and Russia that have experienced the biggest growth over this stretch. China in particular has carved out an incredible growth story, with its production volume up a staggering 92 percent since 2001.

Talking about the two North American land giants, their gold-mining trends have been ugly over the last decade or so. Incredibly, both the US and Canada have seen output fall by nearly a third to 2011s respective tallies of 237mt and 110mt. Their mature gold-mining infrastructures were just decimated by the secular bear that preceded the current bull.

Up until the 1990s the US and Canadas gold-mining industries operated like well-oiled machines, with the miners consistently putting forth sizeable capital towards exploration and development. Exploration was successful in renewing and growing the reserves that were being mined, and continual expansion and new development sustained and even grew production.

It is common trend in the gold and silver ore mining line of business to find mining companies positioning their business in locations and communities where they can easily have access to mines and of course cheap labor. If you make the mistake of positioning this type of business in a location where you would have to travel a distance before you can access gold and silver mines, then you would have to struggle to make profits and maintain your overhead and logistics.

Also, another trend in this line of business is that most registered and well organized mining companies look beyond the market within their locations or state; they ensure that they strike business deals with leading jewelry making companies in the United States of America and other countries of the world.

The truth is that if as a gold mining company you are able to become a vendor to one or more jewelry making giants in the United States of America or in other countries of the world, you will always continue to smile to the bank.

When it comes to supplying product from gold and silver mines, there is indeed a well-defined market. This goes to show that the target market for products from gold mining companies is far reaching. In view of that, we have conducted our market research and we have ideas of what our target market would be expecting from us. We are in business to engage in supply of raw gold and silver to the following organizations;

As a standard and licensed gold mining company, we know that gaining a competitive edge requires a detailed analysis of the demographics of the surrounding area and the nature of the existing competitors. And even if you are successful at first, new competitors could enter your market at any time to steal your regular customers. Hence we will not hesitate to adopt successful and workable strategies from our competitors.

Another competitive advantage that we have is the vast experience of our management team; we have people on board who understand how to grow a business from the scratch to becoming a national phenomenon. Our large and robust distribution network and of course our excellent customer service culture will definitely count as a strong strength for the business.

Lastly, our employees will be well taken care of, and their welfare package will be among the best within our category in the industry, meaning that they will be more than willing to build the business with us and help deliver our set goals and achieve all our aims and objectives. We will also give good working conditions and commissions to freelance sales agents that we will recruit from time to time.

One thing is certain when it comes to gold and silver mining, if your business is strategically positioned and you have good relationship with players in the jewelry manufacturing industry, you will always attract customers cum sales and that will sure translate to increase in revenue generation for the business.

We are well positioned to take on the available market in and around the United States of America and we are quite optimistic that we will meet our set target of generating enough profits from the first six months of operation and grow the business and our clientele base.

We have been able to critically examine the gold and silver ore mining line of business, we have analyzed our chances in the industry and we have been able to come up with the following sales forecast. The sales projections are based on information gathered on the field and some assumptions that are peculiar to startups in the United States of America.

Below are the sales projections for TTK Gold Mining Company, it is based on the location of our business and other factors as it relates to small scale and medium scale gold and silver mining company startups in the United States of America;

N.B: This projection was done based on what is obtainable in the industry and with the assumption that there wont be any major economic meltdown and there wont be any major competitor offering same product and customer care services as we do within same location. Please note that the above projection might be lower and at the same time it might be higher.

Before choosing a location to start TTK Gold Mining Company, we conducted thorough market survey and feasibility studies in order for us to penetrate the available market in the United States of America. We have detailed information and data that we were able to utilize to structure our business to compete with other gold and silver mining companies.

We hired experts who have good understanding of the gold and silver ore mining line of business to help us develop marketing strategies that will help us achieve our business goal of winning a larger percentage of the available market.

Regardless of the fact that our gold mining company can favorably compete with other leading mining companies in the United States of America and in any part of the world, we will still go ahead to intensify publicity for all our products and brand.

TTK Gold Mining Company has a long term plan of exporting our product all across the United States of America and other countries of the world. This is why we will deliberately build our brand to be well accepted in Boise County Idaho before venturing out to other cities all across the United States of America and other countries of the world.

As a matter of fact, our publicity and advertising strategy is not solely for selling our products but to also effectively communicate our brand. Here are the platforms we intend leveraging on to promote and advertise TTK Gold Mining Company;

At TTK Gold Mining Company we will keep the prices of our products below the average market rate by keeping our overhead low and by collecting payment in advance from well established jewelry manufacturing companies that would require constant supply of raw gold and silver.

The payment policy adopted by TTK Gold Mining Company is all inclusive because we are quite aware that different customers prefer different payment options as it suits them but at the same time, we will ensure that we abide by the financial rules and regulation of the United States of America.

In view of the above, we have chosen banking platforms that will enable our clients make payment for our gold and silver without any stress on their part. Our bank account numbers will be made available on our website and promotional materials.

From our market survey and feasibility studies, we have been able to come up with a detailed budget of how to achieve our aim of establishing a standard and highly competitive gold mining company in the United States of America and here are the key areas where we will spend our startup capital on;

No matter how fantastic your business idea might be, if you dont have the required money to finance the business, the business might not become a reality. Finance is a very important factor when it comes to starting a gold and silver mining business.

TTK Gold Mining Company is a partnership business that is owned and financed by Tony Kenneth, Tyson Barker and Karis Murphy. They do not intend to welcome any external business partner which is why they decided to restrict the sourcing of startup capital to 3 major sources.

N.B: We have been able to generate about $500, 000 (Personal savings $400, 000 and soft loan from family members $100, 000) and we are at the final stages of obtaining a loan facility of $1.5 million from our bank. All the papers and documents have been signed and submitted, the loan has been approved and any moment from now our account will be credited with the amount.

The future of a business lies in the number of loyal customers that they have the capacity and competence of their employees, their investment strategy and their business structure. If all of these factors are missing from a business, then it wont be too long before the business close shop.

One of our major goals of starting TTK Gold Mining Company is to build a business that will survive off its own cash flow without the need for injecting finance from external sources once the business is officially running. We know that one of the ways of gaining approval and winning customers over is to supply our raw gold and silver a little bit cheaper than what is obtainable in the market and we are well prepared to survive on lower profit margin for a while.

TTK Gold Mining Company will make sure that the right foundation, structures and processes are put in place to ensure that our staff welfare are well taken of. Our companys corporate culture is designed to drive our business to greater heights and training and retraining of our workforce is at the top burner.

As a matter of fact, profit-sharing arrangement will be made available to all our management staff and it will be based on their performance for a period of three years or more. We know that if that is put in place, we will be able to successfully hire and retain the best hands we can get in the industry; they will be more committed to help us build the business of our dreams.

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gold leaching equipment, circuits & process plants

gold leaching equipment, circuits & process plants

In Leaching for Gold, there is often a tendency to overlook or minimize the importance of the small mine. The small mine of today may develop into the large mine of tomorrow. Under proper management and financing it has as good a chance of yielding a profit as the larger property. Unfortunately large capital is seldom interested in them and they are left to the small groups who are not in a position to obtain the best engineering service. Mills are often erected without proper metallurgical tests and expensive Gold Leachingplant equipment are installed at a time when such large expenditures of capital on the surface is not justified by the underground developments. Careful metallurgical testing on the ore might have disclosed the fact that a simple method of amalgamation or concentration could have been employed and the mill built for a third the cost of a Gold Leaching plant.

By taking advantage of the fact that gold is one of the heaviest metals known and readily forms an amalgam with mercury, an effective but simple and inexpensive plant can be built for most small gold mines. Usually the major percentage of the gold values are in the native or metallic state and are free at commercial fineness of grinding and can be recovered by some combination of amalgamation and concentration.

Plate amalgamation, where the gold values are caught and held in the quicksilver film on a copper plate is the only step required for a commercial recovery on some few ores. In most cases a portion of the gold is filmed so that it does not amalgamate readily or is contained in ores with other minerals that also amalgamate or foul the quicksilver sufficiently to destroy its effectiveness for gold recovery. Here a form of selective concentration such as the Mineral Jigs and blanket tables, is used to concentrate the gold values in a small bulk of high grade concentrates for treatment in an amalgamation barrel or other amalgamator, where the gold is amalgamated and recovered as bullion.

The advantages of these simple plants are many and are not only attractive to the proved small mine but also to those under development. Within recent years many of our well known mines have been developed and brought into large scale production from revenue secured from a small milling plant operating on development ore.

A study of a large number of mills using amalgamation and concentration has disclosed bullion recoveries ranging from 60 per cent to 90 per cent and total recoveries, including concentrates, from 85 per cent to 97 per cent. The average bullion recovery will be about 70 per cent and very often this is of utmost importance as geographic location makes the shipping of the concentrate to a smelting plant undesirable.

While cyanidation is usually favored for treating gold ores to get maximum recovery of the values in bullion form, nevertheless, the fact that an amalgamation plantcan be built for approximately one- third of a complete Gold Leaching mill, together with the lower operating costs of the simpler plant, partially offsets the lower recovery. It is customary to impound the tailings from the amalgamation plant and these are cheaply treated when mine developments have justified the erection of the more complete Gold Leachingplant. An amalgamation and concentration plant can be operating intermittently without sacrificing efficiency, and this allows the operation of the plant for only one or two shifts per day to keep the peak power requirements at a minimum as mine compressors can be operated or the hoisting done while the mill is not in operation. The fact that 60 to 90 per cent of the values can be recovered by amalgamation will usually supply sufficient revenue from the mill to pay for development charges andbuild a reserve for the construction of the complete Gold Leaching plant.

With reasonable care in the design and construction of the original amalgamation and concentration plant all of the equipment can be utilized in the later complete Gold Leaching mill. By using standard equipment it is possible to add the Gold Leaching equipment following the already installed amalgamation and concentration units as these are an essential part of the completed plant.

Other advantages of these simple and inexpensive amalgamation and concentration plants are that they can be successfully operated with unskilled labor as no chemical knowledge or previous experience is necessary. Even flotation has been simplified through the use of Sub-A Flotation Cells; this addition of flotation means no marked increase in milling costs, but often a large increase in recovery due to the saving of extremely fine mineral values.

It is interesting to note the numerous dividend paying gold properties, particularly those in Eastern Canada, which have followed the treatment methods shown in the following flowsheets during the development stage and they have gradually added to the equipment as the profits and ore developments warranted. The use of standard proved equipment eliminates the biggest element of chance, and from this nucleus a more efficient and complete plant can be acquired as the flexibility of the equipment permits the change from one flowsheet to another.

We are giving five typical flowsheets used in treating gold ores and are describing the possible applications of these flowsheets, together with their fields of usefulness, and while in each case there is a similarity in equipment, you will note the changes necessary for various type ores. In each case we have endeavored to show the simplest possible plant for best results on each type of ore and to show the improvements that can be made to further increase recoveries at slight additional cost.

This flowsheet is the lowest in price, and can be used on what are commonly termed as free milling gold ores where a high percentage of the values are free and where these values are unlocked at reasonably coarse grinding.This flowsheet is often used for treating high grade pockets. The ball mill is in open circuit and the size of the product to amalgamation plates is controlled by a Spiral Screen on the ball mill discharge. The concentrating table also functions as a classifier and the middling is returned as oversize product for further grinding.

Flowsheet BB has a Mineral Jig and amalgamator in addition to the equipment shown for Flowsheet AA, and is used for an inexpensive plant where values are coarse but minerals are coated or filmed, and will not amalgamate readily on plates. The jig recovers the rusty values in a high grade concentrate for forcedamalgamation treatment in the Amalgamator. Onthe ores where this flowsheet is applicable, blankets, corduroy, or Gold Matting are usually substituted for amalgamation plates and their concentrate also is treated in the amalgamator with the jig product.

This flowsheet with the ball mill in closed circuit with a classifier, and with the jig in this circuit, will give the highest recovery possible for amalgamation and gravity concentration. The addition of the classifier allows finer grinding and the efficiency of the jig is greatly increased by using it in the closed grinding circuit. This flowsheet not only improves recoveries on ores as described in the previous flowsheets, but is also useful where the minerals are fine and where metallic values are in auriferous sulphides as well as in the free state in the gangue.

The addition of flotation to Flowsheet CC brings recovery to the highest point in Flowsheet DD as flotation recovers the slime values that are normally lost where gravity concentration only is used. The values that can be amalgamated are secured in bullion form from the high grade jig and table concentrates, and the remaining values are recovered in the flotation concentrate. This flowsheet is also necessary where a minor percentage of the gold values are present as metallics at commercial fineness of grinding or where the minerals are friable and easily slimed in fine grinding such as galena or the various telluride minerals.

The addition of flotation does not increase greatly the first cost of the plant, nor does it increase the operating expenses more than a few cents per ton. In a great many cases the additional recovery made by flotation means the difference between operating at a profit and at a loss. Flotation is responsible for the success of many small mining properties today.

Where the isolated location of the mill makes shipping of concentrates prohibitive, many properties store their product until they are justified in installing a complete treatment plant on the ground; current expenses are thus paid through bullion recovered by amalgamation ahead of flotation.

The equipment in this flowsheet is identical to that of DD. Here the ability of the Sub-A Flotation Machine to effectively handle a coarse feed is capitalized on to allow the handling of greatly increased tonnages. The ball mill discharge passes in open circuit over the jig, amalgamation plates or blanket tables and the flotationmachine. A middling product is returned from theconcentrating table and is dewatered in the classifier and returned for regrinding. On tailings, dumps, or low grade ores where it is necessary to handle a larger tonnage, this flowsheet is very effective, and while the recoveries would not be as high as in Flowsheet DD, the loss in recovery is more than offset by the greatly increased tonnage handled and the resultant lower milling cost. With this flowsheet a coarse tailing can be discarded, but slime losses are entirely eliminated as these, together with the granular minerals, are recovered in the flotation machine.

This flexibility of flowsheet is possible only where the Sub-A Flotation Machine is used. The (Selective) Mineral Jig is a valuable addition here as the excessive dilution would make it impossible to use any other type of gravity concentration device ahead of flotation. The change from Flowsheet DD to Flowsheet EE can be very easily made to accommodate changes in ore and to allow greater profits from the treatment of any type gold ore encountered.

No two ores are exactly alike. What method of treatment will give you the greatest net profit in milling your ore? This can be determined by proper metallurgical tests. They will show the recoveries which may be obtained by various methods of treatment; and the type and cost of equipment required, and the operating cost for each method are then easily established.

Ore tests are conducted on the basis of obtaining the simplest possible flowsheet, using standard, proved equipment. Also, as you will note in the flowsheets shown, this fundamental principle is always followed: Recover the mineral as soon as it is free.

A study of a large number of mills using amalgamation and concentration has disclosed bullion recoveries ranging from 60 per cent to 90 per cent and total recoveries, including concentrates, from 85 per cent to 97 per cent. The average bullion recovery will be about 70 per cent and very often this is of utmost importance as geographic location makes the shipping of the concentrate to a smelting plant undesirable.

While cyanidation is usually favored for treating gold ores to get maximum recovery of the values in bullion form, nevertheless, the fact that an amalgamation plant can be built for approximately one-third of a complete cyanide mill, together with the lower operating costs of the simpler plant, partially offsets the lower recovery. It is customary to impound the tailings from the amalgamation plant and these are cheaply treated when mine developments have justified the erection of the more complete cyanide plant. An amalgamation and concentration plant can be operating intermittently without sacrificing efficiency, and this allows the operation of the plant for only one or two shifts per day to keep the peak power requirements at a minimum as mine compressors can be operated or the hoisting done while the mill is not in operation. The fact that 60 to 80 per cent of the values can be recovered by amalgamation will usually supply sufficient revenue from the mill to pay for development charges and build a reserve for the construction of the complete cyanide plant.

With reasonable care in the design and construction of the original amalgamation and concentration plant all of the equipment can be utilized in the later complete cyanide mill. By using standard equipment it is possible to add the cyanide equipment following the already installed amalgamation and concentration units as these are an essential part of the completed plant.

Other advantages of these simple and inexpensive amalgamation and concentration plants are that they can be successfully operated with unskilled labor as no chemical knowledge or previous experience is necessary. Gold ore bodies can be accurately sampled by milling all of the ore from mine development work and the errors resulting from ordinary sampling methods can be entirely eliminated.

It is interesting to note the numerous dividend paying gold properties, particularly those in Eastern Canada, which have followed the treatment methods shown in the following flowsheets during the development stage and they have gradually added to the equipment as the profits and ore developments warranted. The use of standard proved equipment eliminates the biggest element of chance, and from this nucleus a more efficient and complete plant can be acquired as the flexibility of the equipment permits the change from one flowsheet to another.

We are giving four typical flowsheets used in treating gold ores and are describing the possible applications of these flowsheets, together with their fields of usefulness, and while in each case there is a similarity in equipment, you will note the changes necessary for various type ores. In each case we have endeavoured to show the simplest possible plant for best results on each type of ore and to show the improvements that can be made to further increase recoveries at slight additional cost.

This flowsheet is the lowest in price, and can be used on what are commonly termed as free milling gold ores where a high percentage of the values are free and where these values are unlocked at reasonably coarse grinding. This flowsheet is often used for treating high grade pockets. The ball mill is in open circuit and the size of the product to amalgamation plates is controlled by a Spiral Screen on the ball mill discharge. The concentrating table also functions as a classifier and the middling is returned as oversize product for further grinding.

Flowsheet BB has a Mineral Jig and amalgamator in addition to the equipment shown for Flowsheet AA, and is used for an inexpensive plant where values are coarse but minerals are coated or filmed, and will not amalgamate readily on plates. The jig recovers the rusty values in a high grade concentrate for forced amalgamation treatment in the Amalgamator. On the ores where this flowsheet is applicable, blankets, corduroy, or Gold Matting are usually substituted for amalgamation plates and their concentrate also is treated in the amalgamator with the jig product.

This flowsheet with the ball mill in closed circuit with a classifier, and with the jig in this circuit, will give the highest recovery possible for amalgamation and gravity concentration. The addition of the classifier allows finer grinding and the efficiency of the jig is greatly increased by using it in the closed grinding circuit. This flowsheet not only improves recoveries on ores as described in the previous flowsheets, but is alo useful where the minerals are fine and where metallic values are in auriferous sulphides as well as in the free state in the gangue.

The addition of flotation to Flowsheet CC brings recovery to the highest point in Flowsheet DD as flotation recovers the slime values that are normally lost where gravity concentration only is used. The values that can be amalgamated are secured in bullion form from the high grade jig and table concentrates, and the remaining values are recovered in the flotation concentrate. This flowsheet is also necessary where a minor percentage of the gold values are present as metallics at commercial fineness of grinding or where the minerals are friable and easily slimed in fine grinding such as galena or the various telluride minerals.

The addition of flotation does not increase greatly the first cost of the plant, nor does it increase the operating expenses more than a few cents per ton. In a great many cases the additional recovery made by flotation means the difference between operating at a profit and at a loss. Flotation is responsible for the success of many small mining properties today.

Where the isolated location of the mill makes shipping of concentrates prohibitive, many properties store their product until they are justified in installing a complete treatment plant on the ground; current expenses are thus paid through bullion recovered by amalgamation ahead of flotation. The equipment in this flowsheet is identical to that of DD. Here the ability of the Flotation Machine to handle a coarse feed is capitalized on to allow the handling of greatly increased tonnages. The ball mill discharge passes in open circuit over the jig, amalgamation plates or blanket tables and the flotation machine. A middling product is returned from the concentrating table and is dewatered in the classifier and returned for regrinding. On tailings, dumps, or low grade ores where it is necessary to handle a larger tonnage, this flowsheet is very effective, and while the recoveries would not be as high as in Flowsheet DD, the loss in recovery is more than offset by the greatly increased tonnage handled and the resultant lower milling cost. With this flowsheet a coarse tailing can be discarded, but slime losses are entirely eliminated as these, together with the granular minerals, are recovered in the flotation machine.

This flexibility of flowsheet is possible only where the standard Sub-A Type Flotation Machine is used. The Mineral Jig is a valuable addition here as the excessive dilution would make it impossible to use any other type of gravity concentration device ahead of flotation. The change from Flowsheet DD to Flowsheet EE can be very easily made to accommodate changes in ore and to allow greater profits from the treatment of any type gold ore encountered.

The 5 Gold Leaching Equipment Flowsheets illustrated above indicate the equipment essential for small cyanide mills of five different tonnages. These flowsheets are all similar with equipment sized for the tonnages shown. They are typical flowsheets for continuous counter-current decantation cyanidation plus a Mineral Jig in the grinding circuit with provisions for amalgamation of the jig concentrates.

The Mineral Jig and Amalgamation Unit have a definite place in cyanide plants as the coarse and granular gold can be readily recovered which may not be completely dissolved by the cyanide solution during the treatment time given to the pulp. The cyanide process has the advantage of producing precious metals in bullion form with the highest net return from those gold and silver ores amenable to cyanidation. The counter current decantation washing circuit has been found to be a most economical method for removing dissolved precious metals. Washing Tray Thickeners require the minimum floor space and capital costs. In counter current decantation wash water and barren solution are added in the last thickener units and flow counter to pulp flows, becoming enriched and are finally passed to clarification and precipitation where precious metals are precipitated and recovered.

The above flowsheets illustrate a method of increasing both capacity and recovery in a small gold plant by several stages. This is typical of the Pay As You Grow method of increasing capacity and profits essential in so many small operations. Because each ore has its own individual characteristics it is wise to first start with reliable test data. This is just as important in developing a flowsheet for a small mill as it is for a large plant.

Gold Flowsheet No. 1 shows a typical simple mill for the recovery of gold by amalgamation and by concentrating tables. However, on many ores such a flowsheet gives high losses of both fine gold and sulfide minerals.

Gold Flowsheet No. 3 indicates the addition of a required mill, classifier and extra Sub-A Flotation cells to provide for an increase in capacity and improvement in recoveries by regrinding of middling products.

Gold Flowsheet No. 4 shows an increase in flotation capacity to further improve recovery. The additions as illustrated allow an operation to be started on limited capital and gradually to be expanded as conditions warrant.

** Extracted from Memorandum Series No. 47, by C. S. Parsons, Engineer, Ore Dressing and Metallurgical Division, Mines Branch, Department of Mines, Ottawa. Published by permission of the Director, Mines Branch.

Source: This article is a reproduction of an excerpt of In the Public Domain documents held in 911Metallurgy Corps private library.[/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]

small scale mining equipment appropriate process technologies | mineral processing plants

small scale mining equipment appropriate process technologies | mineral processing plants

TriTank TT20: our personal favourite, an entirely unique to APT advanced cyanidation system. These tanks have a wide range of applications and can be setup for Carbon-In-Pulp (CIP), Carbon-In-Leach (CIL), or Carousel operation.

The Elu-X is especially made for the smaller elution applications. Engineered in a minimalistic way, with safety and ease of use in mind, ensuring consistent high performance while keeping unnecessary costs at bay. An affordable, effective solution.

The RDGK: crusher and concentrator. Available as a stand-alone plant, itis simplyassembled on-site and can still easily be relocated. A trailer version is also available allowing you to simply take the crusher to site and you're ready to go. All compactand portable.

The GoldJigga: a manual hydraulic jig concentrator used to concentrate coarse nuggets of gold from coarse (+3mm) oversize material. This jig is highly durable and can be used in the most remote of locations as it does not run with any kind of electricity.

The RG30-T: this scrubber is part of our standard wash plant range and incorporates the GoldKacha concentrator. It comes fully assembled and is available in trailer version, allowing for optimal mobility and ease of operation when following your mineral resource.

Especially for small-scale mining applications, encouraging growth anddevelopment with high recoveries. A more sophisticated solution to traditional sluices, whilst remaining easy to operate. No mercury required, minimal operational requirements.

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