Electrolytic process for manufacturing pure potassium peroxydiph

Details Electrolytic process for manufacturing pure potassium peroxydiph Electrolytic process for manufacturing pure potassium peroxydiph

1985-06-06

1986-12-02

Tung, T.

Chemistry: electrical and wave energy

Processes and products

C25B 128

Patent

active

046263268

ABSTRACT:
The invention provides a process to manufacture fluoride-free potassium peroxydiphosphate on a commercial scale. The process comprises electrolyzing an alkaline anolyte containing potassium, phosphate, nitrate and hydroxyl ions at a platinum or noble metal anode. The catholyte is separated from the anolyte by a separating means permeable to at least one ion contained in the anolyte or catholyte.

REFERENCES:
patent: 1988059 (1935-01-01), van Loon
patent: 2135545 (1938-11-01), Voelkel
patent: 2795541 (1957-06-01), Muller
patent: 3607142 (1971-09-01), Mucenieks
patent: 3616325 (1971-10-01), Mucenieks
Battaglia et al, "The Dissociation Constants and the Kinetics of Hydrolysis of Peroxymonophosphoric Acid", Inorganic Chemistry, vol. 4, No. 4, Apr. 1965, pp. 552-558.
Tyurikova et al, "Certain Features of the Electrochemical Synthesis of Perphosphates from Phosphate Solutions Without Additives", Elektrokhimiya, vol. 16, No. 2, pp. 226-230, Feb., 1980.

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