BITUMINOUS DESULFURIZING AGENT Russian patent published in 2017 - IPC C21C1/02 C21C7/64 

Abstract RU 2610987 C2

FIELD: metallurgy.

SUBSTANCE: agent contains calcium oxide, bitumen and from 0.01 to 10 wt % of at least one flowability-imparting agent selected from the group consisting of polyatomic alcohols, longflame coals, silicone oils and mixtures thereof. The agent contains no calcium carbide, magnesium and magnesium alloy. The agent is produced by mixing calcium oxide, bitumen, at least one flowability-imparting agent and by grinding the resulting mixture to a powder with a grain size with which at least 80 wt % of the powder is presented by particles with size less than 32 mcm, at least 85 wt % of the powder is presented by particles less than 45 mcm, at least 90 wt % of the powder is presented by particles less than 63 mcm and at least 95 wt % of the powder particles is presented by particles less than 90 microns.

EFFECT: invention allows to produce an agent based on calcium oxide, which provides for high efficiency of pig iron or steel alloy desulfurizing.

17 cl, 2 ex

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RU 2 610 987 C2

Authors

Khervig, Frank

Dates

2017-02-17Published

2012-10-19Filed