METHOD FOR IMPROVING REDUCTION DEGREE IN SMELTING OF FERROALLOY Russian patent published in 2016 - IPC C22C33/04 C22C38/40

Abstract RU 2600788 C2

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy and can be used when melting of ferroalloy, used in production of stainless steel. Chromite concentrate is supplied together with nickel-containing raw material, so that by means of supplied amount of nickel-containing raw material required degree of reduction of metal components of ferroalloy is achieved, wherein at least one part of nickel-containing raw material is fed into a melting furnace in granules obtained from chromite concentrate, and at least one part of nickel-containing raw material is first treated separately from granules of chromite concentrate before feeding into melting furnace.

EFFECT: invention increases degree of metal components, such as chromium, iron and nickel in chromite concentrate.

14 cl, 1 ex, 3 tbl

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RU 2 600 788 C2

Authors

Myakelya, Tuomo

Niemelya, Pekka

Krogerus, Khelge

Dates

2016-10-27—Published

2012-06-08—Filed