Potash feldspar is also commonly called orthoclase, which belongs to the monoclinic crystal system, and is usually flesh-red, white or gray.The density is 2.54-2.57, the specific gravity is 2.56-2.59g/cm³, and the hardness is 6.It has the characteristics of low melting point (1150±20℃), long melting time and high melt viscosity.

Potash feldspar is the main raw material for making ceramics and glass (approximately more than 80% of the total consumption),the rest is used in chemicals, glass solvents, ceramic body materials, ceramic glazes, enamel raw materials, etc.

Although potash feldspar has a wide range of functions, its iron content is high. Therefore, if potash feldspar is to be further improved in the application field and application value, it is inseparable from the guarantee of purity.

Shijiewang stone washing agent can replace the existing pickling and magnetic separation processes, it only takes 2-5 hours to clean the yellow and black skins on the surface of potash feldspar at room temperature, which is economical and practical, and provides great help for the iron removal and purification of potash feldspar.

Generally, the iron removal and purification operation of potassium feldspar uses magnetic separation, which has the disadvantages of large production water consumption and high operation and maintenance costs.