Production of anhydrous aluminum chloride from hydrated alumina

Details Production of anhydrous aluminum chloride from hydrated alumina Production of anhydrous aluminum chloride from hydrated alumina

1983-08-03

1985-12-17

Doll, John

Chemistry of inorganic compounds

Halogen or compound thereof

Binary compound containing metal

423126, 423495, 423626, C01F 758

Patent

active

045592152

ABSTRACT:
A process is described for the direct chlorination of hydrated alumina (preferably alumina trihydrate) to aluminum chloride hexahydrate (ACH) by reaction with concentrated hydrochloric acid. Preferably all of the initial hydrated alumina is converted to ACH. The ACH partially calcined to form an amorphous mixture of aluminum oxides and oxychlorides. This mixture is then reductively chlorinated to form anhydrous aluminum chloride which is suitable as a source of electrolytically produced aluminum metal.

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J. T. Baker Chemical Co., Specification Catalog and Price List, Phillipsburg, N.J. 1961, p. 28.

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