Production of aluminum chloride from raw materials containing al

Details Production of aluminum chloride from raw materials containing al Production of aluminum chloride from raw materials containing al

1977-03-23

1978-04-25

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423136, 423495, 423341, 75113, C01F 756, C01F 758

Patent

active

040863204

ABSTRACT:
The production of aluminum chloride from a source material containing both aluminum compounds and silicon compounds such as for example clay is improved by selective use of source materials having a surface area of at least 15 meter.sup.2 /gram; comminution of the source material after dehydration to a particle size of not greater than 0.6 mm (millimeters); and chlorinating the comminuted source material in the presence of a gaseous reducing agent at a temperature of at least 600.degree. C but less than 700.degree. C. This not only improves the rate of chlorination and improves the percentage of aluminum oxide converted to aluminum chloride but also improves the ratio of aluminum chloride to silicon chloride produced, thus producing less silicon chloride byproduct which otherwise must be recirculated to the chlorination reactor or otherwise disposed of.

REFERENCES:
patent: 1713968 (1929-05-01), Lea et al.
patent: 1865008 (1932-06-01), Holm
patent: 1875105 (1932-08-01), Muggleton et al.
patent: 1878013 (1932-09-01), Staib
Hille et al., "Angew. Chem.," vol. 72, 1960, pp. 850-855.

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