Silica Sand Washing Plant Quartz Sand Processing M&c
Mar 22, 2016 55. Lely process To make Pure SiC crystal, in which SiC powder is sublimated into high- temperature species of silicon, carbon, silicon dicarbide (SiC2), and disilicon carbide (Si2C) in an argon gas ambient at 2500oC and redeposited into flake-like single crystals, sized up to 2 2 cm, at a slightly colder substrate.
Therefore, it is very important to improve the grade of silica sand and reduce the content of iron in the production process. In actual production, the raw materials are washed with water first, and then mechanical scrubbing, magnetic separation, flotation, ultrasonic cleaning, acid leaching and other processes are used to remove the iron.