Hello, my partner! Let's explore the mining machine together!

[email protected]

environmental granite mineral processing production line in holmes

feldspar mining process | equipment | flow | cases - jxsc

feldspar mining process | equipment | flow | cases - jxsc

Feldspar is the name given to a group of minerals distinguished by the presence of alumina and silica (SiO2) in their chemistry. This group includes aluminum silicates of soda, potassium, or lime. It is the single most abundant mineral group on Earth. They account for an estimated 60% of exposed rocks, as well as soils, clays, and other unconsolidated sediments, and are principal components in rock classification schemes. The minerals included in this group are the orthoclase, microcline and plagioclase feldspars.

The top states producing feldspar are North Carolina, Virginia, California, Oklahoma, Idaho, Georgia and South Dakota, in descending order of estimated tonnage. Feldspar processors reported co-product recovery of mica and silica sand.

Feldspar is mined from large granite bodies (called plutons by geologists), from pegmatites (formed when the last fluid stages of a crystallizing granite becomes concentrated in small liquid and vapor-rich pockets that allow the growth of extremely large crystals), and from sands composed mostly of feldspar.

Because feldspar is such a large component of the Earths crust, it is assumed that the supply of feldspar is more than adequate to meet demand for a very long time to come. Present mines worldwide are adequately meeting the need for raw feldspar.

Hard-rock mining for feldspars is done by open-pit methods, either by the mine owner or by contractors. After the feldspar ore is drilled and blasted, secondary breakage is performed with a conventional drop ball. Ore is then loaded with a hydraulic shovel onto trucks and hauled to the crushing plant, which is adjacent to the flotation plant.

Uses: Feldspar is used to make dinnerware and bathroom and building tiles. In ceramics and glass production, feldspar is used as a flux. A flux is a material that lowers the melting temperature of another material, in this case, glass.

Feldspar can be replaced by other minerals and mineral mixtures of similar physical properties. Minerals that could be used to replace feldspar include pyrophyllite, clays, talc, and feldspar-silica (quartz) mixtures. The abundance of feldspar will make these substitutions unnecessary for the foreseeable future.

Feldspar is used to make dinnerware and bathroom and building tiles. In ceramics and glass production, feldspar is used as a flux. Flux is a material that lowers the melting temperature of another material, in this case, glass.

Feldspar can be replaced by other minerals and mineral mixtures of similar physical properties. Minerals that could be used to replace feldspar include pyrophyllite, clays, talc, and feldspar-silica (quartz) mixtures. The abundance of feldspar will make these substitutions unnecessary for the foreseeable future.

1. Crushing and grinding The crushing and grinding of feldspar are not only to meet the grain size requirement of the final product, but also to meet the need of the impurity removal process. The coarse crushing of feldspar mostly adopts jaw crusher, and the particle size is about 10mm. There are many options for fine crushing and grinding machines of the feldspar processing plant, mainly roller crusher, impact crusher, sand making machine, hammer crusher, stone grinding, column mill, tower mill, Raymond mill, stirring mill, vibration mill, sanding mill, and airflow mill, etc.

From the point of view of the application industry, the processing of feldspar raw materials in the glass industry mostly adopts a steel rod medium grinding machine, which has high grinding efficiency and uniform particle size, but the introduction of iron pollution leads to the low quality of feldspar products. The ceramic industry has higher requirements for feldspar raw materials, so stone roll grinding or ceramic ball grinding is often used, which has low grinding efficiency and high energy consumption, and can not realize high efficiency and continuous process.

On the basis of ensuring the high quality of feldspar products, how to realizing high efficiency grinding process and continuous production is an important subject in the research of feldspar beneficiation and purification.

2. Ore washing and desliming The washing process is suitable for feldspar produced from weathered granite or feldspar placer, which mainly to remove impurities such as clay, fine mud and mica. On the one hand, it can reduce the content of Fe2O3 in feldspar ore, on the other hand, it can increase the content of potassium and sodium in feldspar ore. Common ore washing machines: Denver washer dryer, vibrating screen, log washer, mixing tank, and grinders.

Desliming is mainly used to remove the primary slime and the secondary slime produced by grinding, prevent a large amount of fine slime from affecting the separation effect of subsequent operations such as flotation and magnetic separation. Commonly used equipment desliming hopper, centrifuge concentrator, hydrocyclone, etc.

3. Magnetic separation Due to the magnetic properties of iron minerals, mica and garnet in feldspar ore, it can be separated from feldspar mineral by the external magnetic field. In general, the magnetic properties of iron minerals and mica in feldspar are weak, only by using high-intensity magnetic separator can get a good result. The main magnetic separator equipment has a permanent magnetic roller type strong magnetic separator, permanent magnetic drum type medium strong magnetic separator, wet flat type strong magnetic separator and high gradient strong magnetic separator.

4. Flotation Flotation is an effective way to remove impurities in feldspar. On the one hand, the impurity elements such as iron and titanium can be removed from feldspar, the combination of chemical agents depends on the existing components of impurity; on the other hand, the feldspar can be separated out the quartz, thus increase the content of K, Na. At present, there are many studies on the separation of feldspar and quartz, as well as the selective separation of potassium feldspar and albite.

Mining Equipment Manufacturers, Our Main Products: Gold Trommel, Gold Wash Plant, Dense Media Separation System, CIP, CIL, Ball Mill, Trommel Scrubber, Shaker Table, Jig Concentrator, Spiral Separator, Slurry Pump, Trommel Screen.

graphite processing,extraction,crushing&grinding plant design | prominer (shanghai) mining technology co.,ltd

graphite processing,extraction,crushing&grinding plant design | prominer (shanghai) mining technology co.,ltd

With the fast development of the refractory material and new energy vehicles, graphite resources are focused in recent years. There are two different type graphite: Artificial graphite and Natural graphite. Prominer provides the complete solution of graphite processing plant including crushing, grinding and flotation plant to make natural flake graphite concentrate. For graphite concentrate deep processing for anode material, we can also supply spherical graphite spherical grinding & shaping production system and spherical making test service. Besides, Prominer has various resources linking to chemical & thermal purification technology, coating technology, carbonization technology and half cell & full cell testing to make Li-battery anode materials and expandable / expanded graphite.

Every graphite mine has unique characteristics which need to be determined in advance. Therefore, it is of crucial importance to determine graphite flake morphology, primary flake size and liberation size. Typical flake graphite deposits are gneissic and consist mainly of feldspar, quartz and mica. The size of the graphite flake is a very important fact under commercial consideration. Therefore, it is in the best interest of a flake graphite producer to maximize the amount of large flake. Prominer is experienced in choosing the suitable grinding mill to reserve high yield rate of big flake graphite.

With the development of expanded graphite and anode materials industry, there is much requirement on high purity graphite product. It is very hard to reach the grade above TGC 96% just by the stage grinding and flotation processing. To get higher grade above TGC96% or even above TGC 99.95%, deep processing should be applied. General processing technologies for graphite ore are summarized as below:

It is necessary to undertake the lab test or even pilot test for determining primary flake size and liberation size, improving the TGC grade as high as possible, meanwhile to find the suitable grinding-flotation way to reserve the big flake size graphite. It means that any processing reducing the size of constituent flake must be minimized. The ball mill is used for the primary grinding stage, thereafter the vertical stirred mill with ceramic grinding media is the best choice for intermediate regrinding stages.

Graphite purification furnace is used for continuous high temperature purification of graphite powder to match increasingly stricter environmental protection requirements. We have continuous type and pusher type for different purpose purification process. It is continuous loading and discharging under high temperature reducing the energy consumption and shortening the production cycle. The furnace adopts electrical resistant or induction heating that the temperature can reach up to more than 2600C. Most of the impurities become gas, but the graphite will remain because of its heat resisting property. Both high temperature and chemical method can be used to satisfy the high purity requirement. The furnace uses high efficiency filter system, which can trap the dust and corrosive gases coming from the purification process.

Graphite used for high tech products such as Lithium ion batteries or fuel cells demands higher purity than typically upgraded by flotation. The chemical purification technology should be considered for further purification of graphite concentrate to TGC 99.99%. A basic process is thermal treatment in the presence of caustic reagents to dissolve siliceous impurities such as quartz, feldspar or mica. The graphite concentrate is mixed with caustic reagent and calcined at elevated temperatures. After calcination the graphite is leached with water washing away dissolved impurities. In order to get ultra-high purity graphite, the fine intergrown minerals residing between the graphite layers have to be removed. Thus, one or multi-stage acid washing with different acids or combinations is applied to remove impurities that are insoluble at alkaline conditions.

The spheroidization process is the most important step for making cathode & anode materials. Prominer has the ability to provide the complete spherical graphite grinding system including primary crushing mill, shaping mill, air classifier and dedusting system. It is widely used for processing cathode materials such as lithium iron phosphate, cobalt acid lithium, lithium manganate and Li-NiCoMn Lithium ion materials, and anode materials including natural graphite & synthetic graphite grinding and spheroidization processing. It is highly efficient to get potato-shaped graphite particles with high yield rate between 40-70%. We do also have the batch type shaper mill to improve the tap density.

For making the natural graphite anode materials, the coating and carbonizatino treatment are the key processing steps to determine the cathode and anode materials performance for rechargeable battery. Prominer maintains a good relationship with the suppliers that can provide coating and carbonization system.

Prominer has been devoted to mineral processing industry for decades and specializes in mineral upgrading and deep processing. With expertise in the fields of mineral project development, mining, test study, engineering, technological processing.

Related News
  1. ball mill and clay grinding
  2. jinshibao high quality ore dressing ball mill
  3. chicago low price small lime system sand production line price
  4. tqmj500-b chocolate ball mill machine by batch
  5. liner for ball mill in pondicherri
  6. rotary dryer at250 c produce
  7. cost of grinding in gold production stone crusher for sale
  8. new quartz mineral processing production line in tokyo
  9. ball bearing
  10. monrovia high quality small kaolin ceramic ball mill manufacturer
  11. italian mineral ball mill manufacturers
  12. cone crusher heads damaged
  13. construction sand coal vibrating sieve vibrator screen vibratory screening separator
  14. potassium feldspar non ferrous flotation machine
  15. rock crusher lego
  16. cement mill price
  17. stone crusher sukabumi
  18. rotary kiln thrust roller
  19. high recovery small gold mine equipment
  20. rotary sand dryer in texas