Process for removing humic matter from phosphoric acid solutions

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

1979-04-09

1981-04-21

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210727, 423321R, 423321S, B03D 102, C01B 25235

Patent

active

042631483

ABSTRACT:
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.

REFERENCES:
patent: 2133251 (1938-10-01), McCord
patent: 2936888 (1960-05-01), Williams
patent: 3099622 (1963-07-01), Woerther
patent: 3129170 (1964-04-01), Ittlinger
patent: 3306714 (1967-02-01), Goren
patent: 3630711 (1971-12-01), Burkert et al.
patent: 3637348 (1972-01-01), Kraus et al.
patent: 3969483 (1976-07-01), Stinson et al.

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