Method of separating iron and its alloy metals from fine-grained

Details Method of separating iron and its alloy metals from fine-grained Method of separating iron and its alloy metals from fine-grained

1983-05-23

1984-06-12

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

75 21, 75 26, 75 29, 75 30, 75 59, 75 65R, C25C 106

Patent

active

044540132

ABSTRACT:
Pure ferro-alloy metals are isolated from fine-grained crude oxidic mineral products by reduction melting and subsequent anodic liberation of the iron. The reduction melting is performed in a plasma-heated furnace into which the fine-grained oxide material is blown together with carbon powder and circulating exhaust gas, extremely over-heated in a plasma generator, the quantity of carbon powder being dosed so that most of the alloy metal(s) is converted to carbides during the reduction. After electrolysis, the anode residue will consist primarily of alloy metal carbides from which the metal can be recovered by known methods.

REFERENCES:
patent: 3856918 (1974-12-01), Skrivan et al.
patent: 3967954 (1977-07-01), Chen
patent: 4047934 (1977-09-01), Pollard et al.
patent: 4234333 (1980-11-01), Ghandehari et al.
Periodic Table of the Elements, E. H. Sargent & Co.

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