Treatment of oxidic materials

Details Treatment of oxidic materials Treatment of oxidic materials

1983-09-12

1985-05-28

Carter, H. T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423 59, 423 44, 423 62, 423133, 423135, 423136, 423DIG16, C01G 4100, C01G 3300, C01G 3500, C01F 756

Patent

active

045199876

ABSTRACT:
In the fluidized bed chlorination of oxidic materials, for example minerals such as bauxite, tantalite, columbite, wolframite or scheelite, the separation of metal values giving vaporous chlorides at the reaction temperature is enhanced by maintaining a zone substantially free of chlorine in the fluidized bed, for example a zone at least 0.25 m in depth measured from the expanded bed surface. A high aspect ratio bed and counter current movement of the bed matter and the chlorine within the bed are preferably used.

REFERENCES:
patent: 2184884 (1939-12-01), Muskat et al.
patent: 2852362 (1958-09-01), Daubenspeck et al.
patent: 2933373 (1960-04-01), Love et al.
patent: 3803287 (1974-04-01), Fukushima et al.
patent: 3870506 (1975-03-01), Robinson et al.

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