Feldspar is an aluminosilicate mineral of alkali metals alkaline earth metals such as potassium, sodium, calcium, also known as feldspar minerals. Potassium feldspar (K2O · Al2O3 · 6SiO2) is also commonly called orthoclase, belonging to the monoclinic system, usually flesh red, white gray. Potash feldspar series are mainly orthoclase, plagioclase, feldspar. Anshan Talc Powder

Potash feldspar ore is a water-insoluble potassium resource with high potassium content, the widest distribution large reserves. There are 60 potassium feldspar ore sources, the average potassium oxide content is about 11.63%, its reserves are about 7.914 billion tons, which is converted into potassium oxide reserves of about 920 million tons based on the average content. The distribution of potassium feldspar in Anhui, Inner Mongolia, Xinjiang, Sichuan, Shanxi other provinces is relatively concentrated, with abundant reserves, which has become a local non-metallic mineral resource.

Potash feldspar belongs to the monoclinic system, is usually flesh red, yellow white. The density is 2.54-2.57g / cm3, the specific gravity is 2.56-2.59, the hardness is 6. The theoretical composition is SiO2 64.7% Al2O3 18.4%, K2O 16.9%. It has low melting point (1150 ± 20 ℃), long melting interval high melting viscosity. It is widely used in ceramics, ceramic glaze, glass, electric porcelain, abrasive materials other industrial sectors potassium fertilizer production.