Electrolytic process for manufacturing potassium peroxydiphospha

Details Electrolytic process for manufacturing potassium peroxydiphospha Electrolytic process for manufacturing potassium peroxydiphospha

1985-07-29

1987-05-05

Tung, T.

Chemistry: electrical and wave energy

Processes and products

2041824, 204301, C25B 128

Patent

active

046630023

ABSTRACT:
The invention provides a process to maintain the anolyte pH within a range of 1 pH unit while manufacturing potassium peroxydiphosphate on a commercial scale. The process comprises electrolyzing an alkaline anolyte containing potassium, phosphate, and hydroxyl ions at a platinum or noble metal anode optionally in the presence of a reaction promoter. The catholyte, an alkali metal hydroxide, is separated from the anolyte by at least two separating means, one separating means permeable to either anions or cations, but not both, and the other separating means permeable to an ion excluded by the first separating means.

REFERENCES:
patent: 2593915 (1952-04-01), Pavelka
patent: 3347761 (1967-10-01), Bicek
patent: 3616325 (1971-10-01), Mucenieks
patent: 3764503 (1973-10-01), Lancey et al.
patent: 3909382 (1975-09-01), Muller et al.
patent: 4134805 (1979-01-01), Frohler et al.
patent: 4310394 (1982-01-01), Malafosse et al.
patent: 4419198 (1983-12-01), Breda et al.

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