Method of producing alumina and potassium sulphate form alunite

Details Method of producing alumina and potassium sulphate form alunite Method of producing alumina and potassium sulphate form alunite

1975-08-25

1976-09-28

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423120, 423199, 423131, C01F 706

Patent

active

039832112

ABSTRACT:
The specific feature of the present method is that in the process solution resulting in the processing of alunite with the object of producing alumina and potassium sulphate therefrom, an excess amount of sodium ions is maintained with respect to the potassium ions.
The method is advantageous in that it ensures a higher yield of potassium sulphate and a lower contamination of the final products with respect to sodium and potassium ions.

REFERENCES:
patent: 1338428 (1920-04-01), Downs
patent: 1951443 (1934-03-01), Sanders
patent: 2099360 (1937-11-01), Yonemura et al.

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