Process for treatment of antimony-containing materials

Details Process for treatment of antimony-containing materials Process for treatment of antimony-containing materials

1977-07-26

1979-11-13

Gantz, Delbert E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group va metal or arsenic

423DIG16, 431 7, 431170, 431351, C01B 2900

Patent

active

041743725

ABSTRACT:
A process for treatment of antimony-containing materials in a fluidized bed by way of calcination of the materials at a temperature within the range of from 800.degree. to 1,100.degree. C. obtained by combusting a mixture of a fuel gas and an oxygen-containing gas in said fluidized bed. Said mixture of the gases is formed directly in said fluidized bed by supplying, thereinto, the fuel gas and oxygen-containing gas in separated streams uniformly distributed over the bottom cross-section of said fluidized bed so that the fuel gas stream is surrounded over the entire perimeter by the oxygen-containing gas streams.
The process according to the present invention makes it possible to treat antimony-containing materials with a content of antimony ranging from 0.3 to 15% by weight and to obtain antimony-rich sublimates with a content of antimony as high as 40 to 75% by weight.

REFERENCES:
patent: 2095065 (1937-10-01), Hays
patent: 3370938 (1968-02-01), Newman et al.
patent: 3511487 (1970-05-01), Desty

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