C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
204/58
C25B 1/28 (2006.01) C25B 1/30 (2006.01)
Patent
CA 1280996
ABSTRACT ELECTROLYTIC PROCESS FOR MANUFACTURING PURE POTASSIUM PEROXYDIPHOSPHATE The invention provides a process to manufacture fluoride-free potassium peroxydiphosphate on a com- mercial scale. The process comprises electrolyzing a fluoride-free 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.
509763
Chiang John S.c.
Fmc Corporation
Osler Hoskin & Harcourt Llp
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