Feldspar minerals are potassium aluminosilicates.
these feldspar grade 2 is lower in potassium content up to 9 %, with higher silica and iron.
we can crushed also reach to 45 micron and magnetic separation.
we can make by blending 9.5- 10 - 10.5 % of potassium or any % customer need.
Feldspar use in several industries like
1- glass industry: by percent 10-15% from the formula that chemical balance happen due to presence of aluminum and basis contain 4-6% K2O, 5-7% Na2O, about 19% Al2O3, and less than 0.1% Fe2O3. Feldspar is used mainly as a source of alumina, which improves both the workability of the glass melt and the chemical and physical stability of the finished product. It also provides the alkaline oxides (Na2O, K2O) that provide fluxing in partial substitution for calcium oxide, which improves chemical resistance,
2- ceramic, porcelain and pottery: as flux to accelerate the melting operation that feldspar melt in lower temperature than the other materials in the formula so can enter to the chemical and physical reaction during melting.
3- other uses: as scraping off material,
4- filler material in plastic,
5- rubber,
6- painting industry.
7- know as electric isolator,
8- In filler applications it offers low vehicle demand, high dry brightness with low tint strength, and resistance to abrasion and chemical degradation. In coatings it also provides good film durability and high resistance to chalking and frosting.