Industrijski ferokrom
Surovine za taljenje visokoogljičnega ferokroma vključujejo kromovo rudo, koks in silicijev dioksid.
Cr2O3 Večji ali enak 40 % v kromovi rudi, Cr2O3/∑FeO Večji ali enak 2,5, S<0.05%, P<0.07%, MgO and Al2O3 content cannot be too high, and the particle size is 10~70mm. If it is a refractory ore, the particle size should be appropriately smaller. Coke is required to contain fixed carbon of not less than 84%, ash content of less than 15%, S<0.6%, and particle size of 3 to 20 mm. Silica is required to contain SiO2≥97%, Al2O3≤1.0%, good thermal stability, no soil, and a particle size of 20~80mm.
Visoka vsebnost ogljika, fero krom in malo silicija
fero krom
