Process for dearsenifying phosphoric acid solutions

Details Process for dearsenifying phosphoric acid solutions Process for dearsenifying phosphoric acid solutions

C - Chemistry, Metallurgy

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C01B 25/234 (2006.01) C01B 25/237 (2006.01) C01B 25/238 (2006.01) C01B 25/30 (2006.01) C01B 25/46 (2006.01)

Patent

CA 1261115

PROCESS FOR DEARSENIFYING PHOSPHORIC ACID SOLUTIONS ABSTRACT OF THE DISCLOSURE: Phosphoric acid solutions are dearsenified by treating them with a sulfide and separating the resulting precipitate from the purified solution. The sulfide is at least one com- pound of the general formula P4Sx in which x stands for a number of 3 to 10.

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