Process for the recovery and separation of arsenic from antimony

Details Process for the recovery and separation of arsenic from antimony Process for the recovery and separation of arsenic from antimony

1991-01-29

1992-05-05

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

423 88, C22B 3002

Patent

active

051103532

ABSTRACT:
Fume generated by roasting speiss is contacted with an oxygen-containing gas at an elevated temperature for a sufficient time to product arsenic and antimony products which may be separated from each other by means such as condensation. Further, in the roasting of antimony-containing phases (such as speiss) the presence of arsenic can enhance the volatility of the antimony.

REFERENCES:
patent: 486330 (1892-11-01), Flury
patent: 1803771 (1931-05-01), Rutherford
patent: 4194904 (1980-03-01), Foerster et al.
patent: 4489046 (1984-12-01), Peterson et al.
patent: 4578254 (1986-03-01), Malstrom
patent: 4626279 (1986-12-01), Bjornberg et al.
patent: 4808221 (1989-02-01), Clement, II et al.
patent: 4891061 (1990-01-01), Clement, II et al.

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