C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 11/00 (2006.01) C22B 3/00 (2006.01) C22B 3/22 (2006.01) C22B 5/04 (2006.01) C22B 11/02 (2006.01)
Patent
CA 2301482
Complex ores of metals and precious metals which also contain iron spinals and similar compounds are assayed and their metals content is extracted by subjecting the ores or concentrates thereof together with an aluminum reducing agent and certain other fluxing agents including calcium oxide and a collector metal such as copper. When heated to a critical temperature an aluminothermic reaction occurs and a melting point is reached to reduce all of the mixture, the metals with or without a collector metal and the non-metallics to the slag component. After cooling, separation of all metals can be achieved either through an electrolytic process or a selective chemical dissolution process, leaving all of the recovered metals for analysis and recovery. In some ores, collecting agents are not required. This process is scalable, meaning, either assaying or a beneficiating process for run of mine production.
Finlayson & Singlehurst
Poupore Thomas H.
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