METHOD OF PRODUCTION OF FERRO-ALLOY Russian patent published in 2007 - IPC C22C33/04 

Abstract RU 2309189 C2

FIELD: metallurgy; processing of chromium- and nickel-containing materials by reducing melting in electric furnace.

SUBSTANCE: first, chromium ore is molten in presence of flux and chromium-containing oxide melt thus obtained is treated by injection of dust-like waste of nickel matte production process at ratio of (0.9-1.8):1 of chromium ore mass and melt is subjected to de-sulfurization.

EFFECT: possibility of replacing expensive coke breeze with low-priced carbon-containing reductant.

1 tbl, 1 ex

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RU 2 309 189 C2

Authors

Zajakin Oleg Vadimovich

Noritsin Aleksandr Nikolaevich

Zhuchkov Vladimir Ivanovich

Leont'Ev Leopol'D Igorevich

Dates

2007-10-27Published

2005-10-03Filed