Method of producing a pure aluminiumoxide from solutions contain

Details Method of producing a pure aluminiumoxide from solutions contain Method of producing a pure aluminiumoxide from solutions contain

1980-02-04

1981-10-27

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423132, 423495, C01F 722

Patent

active

042973260

ABSTRACT:
Method of producing aluminiumchloride with low contents of iron from solutions containing ions of aluminium and iron by precipitation of aluminiumchloride by means of hydrochloric gas where the solution from which the aluminiumchloride is precipitated contains at least 0.1 g Fe/l which solution has been formed by leaching of a natural mineral raw material or artifically produced aluminium-containing raw material by leaching with hydrochloric acid and/or sulphuric acid, respectively a mixture of such acids. The produced aluminiumchloride may be transformed to aluminiumoxide by calcination.

REFERENCES:
patent: 558725 (1896-04-01), Gooch
patent: 2752223 (1956-06-01), Recue
patent: 3620671 (1971-11-01), Maurel et al.
patent: 4110399 (1978-08-01), Gaudernack et al.
patent: 4158042 (1979-06-01), Deutschman
patent: 4177242 (1979-12-01), Cohen et al.

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