Method of removing potassium hydroxide from crystallized potassi

Details Method of removing potassium hydroxide from crystallized potassi Method of removing potassium hydroxide from crystallized potassi

1980-10-06

1981-12-08

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Iron group metal

423179, 423202, 423275, 423594, C01D 1300, C01G 4900

Patent

active

043047602

ABSTRACT:
Potassium ferrate (VI), K.sub.2 FeO.sub.4, which has been crystallized from a concentrated aqueous solution of KOH is washed with an aqueous solution of a potassium salt of an inorganic acid to remove the residual KOH. The wash solution is at an alkaline pH and contains a high concentration of the potassium salt.

REFERENCES:
patent: 2758090 (1956-08-01), Mills et al.
patent: 2835553 (1958-05-01), Harrison et al.
Schreyer et al., "Inorganic Synthesis, vol. 4", McGraw-Hill Co., N.Y., 1953, pp. 164-168.

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