mica grinding for sale South America
In our market, there is a mica powder, also called "wet Mica Powder" (also known as the early years of "semi-dry mica powder"). It is formed above dry grinding method, but adds water, to increase the mica content, but the effect is limited, since the micron-scale powder by washing is extremely difficult to separate. Currently on the market content of 50 to 70% of mica, which is of such products. Bigger problem is the formation of a wafer form of dry mill has not changed, panning is impossible to make the wafer thinner, perfect. So this can only be classified as mica "dry panning mica" in essence still is a dry product, rather than a wet product.
mica grinding for sale South America
Real wet whole process of production are carried out in water, a variety of specific production processes, such as wet milling, that is, in the presence of water with special equipment grinding mica scrap (note: not mica mine). This equipment generates wrong power crystal layers, while under the influence of water and chemicals into the grain disintegration of the wafer, so do not damage the wafer. The first is washing, the use of float builders and the role of water will float on water enriched mica, and then high-speed centrifugation to remove residual sand, to achieve a high degree of purification purposes. Wet with water and chemical effects, and mild mechanical action, mica layers open, made of very thin wafers, suitable particle size mica. Then bleach bleaching, washing, aqueous phase classification, sedimentation, filtration, drying, powdering and testing packaging, the products. Mica powder for cosmetic use, but also for the removal of harmful elements in the process. The process is very complicated, but high-quality products, more than 95% purity. Because never use force mechanical polishing process conditions are very mild, mica chips did not suffer any damage or injury, the wafer is perfect, absolutely no perforation and tearing and other defects. Wafer thin, the thickness of the nanometer, high aspect ratio (80-120 times), the product of the specific surface area several times greater than dry product. Does not contain harmful impurities, particle size distribution concentrated, stable quality. The problem is that the production of wet raw material consumption is high (5-6 tons of ore / ton of product), the process is very complex, long production cycle, hydropower and consumption of drugs is also more high production costs. But Mica international market generally are using this technology to produce. Wet grain is in the water so that stripping out the mica wafer, which is the fundamental difference between where the dry, nor is panning. Dry mica unless there are special reasons, generally not used as filler.
Grinding of Mica
Mica is one of the most difficult minerals to grind. Even the thinnest flakes are tough, elastic and slippery and resist abrasion and consequently grinding it is a slow, costly and difficult operation. It is all the more difficult operation to grind it to fine mesh without any deterioration of its natural brilliance, gloss and color.
Why Wet Ground Mica?
If mica is grounded like any other minerals, that is in any conventional Ball Mill or Hammer Mill, it will lose it's luster. This is because in doing so, the surface of the plate-like layers of mica gets scratches.
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