C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/333
C22B 13/02 (2006.01) C22B 13/08 (2006.01)
Patent
CA 1171288
ABSTRACT OF THE DISCLOSURE A molten bath consisting of a slag phase and a lead phase is maintained in an elongated horizontal reactor. The charge is fed into the reactor on one side thereof onto the molten bath in a melting zone so as to maintain an oxidation potential which causes metallic lead and slag to be formed. Reducing agents are introduced into the slag phase on the other side of the reactor in a reducing zone. To ensure that the bismuth contained in the charge will be collected in the smallest possible quantity of crude lead, such an potential is maintained in the molten bath in the melting zone that the lead phase contains 0.05 to 2 % by weight sulfur, the high-Bi primary lead which becomes available in that zone is separately tapped, and the low-Bi secondary lead which becomes available in the reducing zone is also separately tapped.
383274
Fischer Peter
Schwartz Werner
Metallgesellschaft Aktiengesellschaft
Robic Robic & Associes/associates
LandOfFree
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