METHOD OF FERROCHROME PRODUCTION Russian patent published in 2000 - IPC

Abstract RU 2148672 C1

FIELD: pyrometallurgy, particularly, production of ferroalloys; applicable in production of ferrochrome from powdery (finely divided) chrome iron ores and concentrates. SUBSTANCE: method is characterized by the fact that prior to loading of charge, melt reaction volume is formed based on halides of alkali and alkali-earth metals. In this case, halides of alkali and alkali-earth metals are used in the form of calcium fluoride (fluorspar). The method provides for production of ferrochrome from powdery chrome iron ore or its concentrate with particles sizing less than 10 mm. EFFECT: higher efficiency. 1 ex

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RU 2 148 672 C1

Authors

Digonskij S.V.

Dubinin N.A.

Kravtsov E.D.

Ten V.V.

Dates

2000-05-10Published

1998-10-14Filed