C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/319
C22B 19/02 (2006.01)
Patent
CA 1099523
ABSTRACT OF THE DISCLOSURE A method for removing zinc from zinc-containing slags resides in that zinc is recovered from a bath of said slag by introducing a reducing agent, such as coke, thereinto, and by further blowing nitrogen into said bath in an amount of 0.5 to 3.5 Nm3/min.m2 of the bath surface and at a molten slag tem- perature of 1220 to 1400°C, preferably within the range of from 1220 to 1290°C. The invention makes it possible to step up the rate of zinc recovery up to 2.3 kg/min.m2 of the bath surface, reduce power input by 30 to 40%, and thereby to cut down expenses involved in the process as a whole.
277633
Egorova Tatyana S.
Gavrilenko Alexandr F.
Golovachev Anatoly I.
Lakernik Mark M.
Shabalina Roza I.
Gosudarstvenny Nauchno-Issledovatelsky Institut Tsvetnykh Metall
Swabey Ogilvy Renault
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