Alkaline processing of naturally occurring calcium aluminium and

Details Alkaline processing of naturally occurring calcium aluminium and Alkaline processing of naturally occurring calcium aluminium and

1985-10-16

1987-05-26

Doll, John

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkali metal

423131, 423150, 423167, 423312, C01B 2516

Patent

active

046684875

ABSTRACT:
A process for production of alkali metal phosphates from material containing calcium, iron and aluminium phosphates, for example naturally occurring phosphate rocks, involves calcining the material with alkali metal carbonates to produce alkali metal phosphates, which are then leached from the calcined product under conditions that yield relatively concentrated solutions.

REFERENCES:
patent: 1360248 (1920-11-01), Brobst
patent: 1799882 (1931-04-01), Brenek
patent: 2220790 (1940-11-01), McCullough
patent: 2221356 (1940-11-01), Michels
patent: 4106922 (1978-08-01), Hauschild et al.
patent: 4423015 (1983-12-01), Roy et al.

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