Process for recovery of potassium from manganate plant wastes

Details Process for recovery of potassium from manganate plant wastes Process for recovery of potassium from manganate plant wastes

1977-04-26

1978-04-18

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkali metal

423 50, C01D 104

Patent

active

040851915

ABSTRACT:
Potassium is recovered as a dilute KOH solution from residue solids resulting from conversion of manganese ore to K.sub.2 MnO.sub.4 by reacting the solids with a Ca(OH).sub.2 under specified conditions. The resulting KOH solution can be returned to the K.sub.2 MnO.sub.4 plant and the solids of reduced potassium content are suitable for disposal in a landfill.

REFERENCES:
patent: 513001 (1894-01-01), Blackmore
patent: 910662 (1909-01-01), Gibbs
patent: 1238916 (1917-09-01), Hoover
patent: 1260944 (1918-03-01), Rody
patent: 2940822 (1960-01-01), Carus et al.
patent: 3172830 (1965-03-01), Carus

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