C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
39/3, 53/351
C22B 15/00 (2006.01) C22B 5/02 (2006.01) C22B 5/14 (2006.01) C22B 23/02 (2006.01)
Patent
CA 1247373
ABSTRACT OF THE DISCLOSURE A method and apparatus are disclosed for treating sulphide concentrates of sulphide ores in order to produce raw metal in one and the same processing unit. According to the invention, the molten matte received from suspension smelt- ing is solidified and, if necessary, crushed and ground. The solid matte is then returned into the processing unit through the converting shaft located therein. In the converting zone, the matte is converted into raw metal by means of a two- phase method. The exhaust gases both from the smelting zone and from the converting zone are discharged through a common uptake shaft. Moreover, the slags from both zones can be discharged through the same tap hole, whereas the matte and the raw metal are advantageously removed from the processing unit each through a specific individual tap hole.
486862
G. Ronald Bell & Associates
Outokumpu Oy
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