Winning metal from ore

Details Winning metal from ore Winning metal from ore

1984-01-19

1985-05-21

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 2, 75101R, C22B 110

Patent

active

045184208

ABSTRACT:
Copper is won from chalcopyrite ore (copper/iron sulphide) containing Cu(II) and Fe(III), which respectively prefer square planar and octahedral co-ordination. A vaporized tetradentate (square-planar) Schiff base reagent is passed through a fluidized bed of oxidatively roasted chalcopyrite, and ignores the iron but forms a (volatile) copper complex. This is blown to a decomposition chamber containing a hot probe on which the complex decomposes, leaving the desired copper on the probe and liberating the Schiff base reagent for recycling.

REFERENCES:
patent: 1789813 (1931-01-01), Gaus
patent: 4123260 (1978-10-01), Sefton
patent: 4130415 (1978-12-01), Nagaraj

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