Process for removing humic matter from phosphoric acid...

Details Process for removing humic matter from phosphoric acid... Process for removing humic matter from phosphoric acid...

C - Chemistry, Metallurgy

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B

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C01B 25/234 (2006.01) B03D 1/02 (2006.01) B03D 3/06 (2006.01) C01B 25/235 (2006.01) C22B 60/02 (2006.01)

Patent

CA 1115485

F.973 PROCESS FOR REMOVING HUMIC MATTER FROM PHOSPHORIC ACID SOLUTIONS ABSTRACT OF THE DISCLOSURE A process is disclosed for removing colloidal and non-colloidal humic matter from an aqueous solution of phosphoric acid, the process comprising (a) treating the phosphoric acid solution with a flocculant to flocculate the humic matter, (b) adding to the aqueous solution an effective amount of a phenol compound in order to destabilize the colloidal humic matter contained in the solution and to aid in the formation of froth, and (c) separating the humic matter from the solution by froth flotation.

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