Method for upgrading of silicon-containing residues obtained aft

Details Method for upgrading of silicon-containing residues obtained aft Method for upgrading of silicon-containing residues obtained aft

1997-05-19

1998-06-30

Simmons, David A.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75 105, 75 1051, 420578, 420117, C01B 3300

Patent

active

057727287

ABSTRACT:
The present invention relates to a method for upgrading silicon-containing solid residues obtained after leaching of copper from copper-containing residues from direct synthesis of organochlorosilanes. Solid residue, optionally together with an oxidation agent, is supplied to a smelting furnace where the residues are melted and form a molten metallic phase substantially containing silicon and a calcium silicate slag and tapping of the molten metallic phase and an inert slag from the smelting furnace.

REFERENCES:
patent: 3704114 (1972-11-01), Wilson et al.
patent: 3768998 (1973-10-01), Yonemochi
patent: 4758352 (1988-07-01), Feldner et al.
patent: 5174810 (1992-12-01), Dosaj et al.
patent: 5651807 (1997-07-01), Gundersen et al.

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