Humic flotation of wet process phosphoric acid as a pretreatment

Details Humic flotation of wet process phosphoric acid as a pretreatment Humic flotation of wet process phosphoric acid as a pretreatment

1981-03-27

1983-09-06

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 10, 423321R, B01D 1100, C01G 5600, C01G 5700, C01B 2516

Patent

active

044029209

ABSTRACT:
An acidic solution containing metal values and also containing humic acid impurities, is purified by: (1) forming a gas in the acid solution, (2) adding high molecular weight anionic organic flocculant in a volume ratio of gas containing acid solution: flocculant of 1,000:0.002 to 0.10, to form a bottom, purified, aqueous acidic phase containing metal values and a top flocculated humic acid impurities froth phase and (3) removing the humic acid froth phase.

REFERENCES:
patent: 3410667 (1968-11-01), Sherief et al.
patent: 3711591 (1973-01-01), Hurst et al.
patent: 3835214 (1974-09-01), Hurst et al.
patent: 4087512 (1978-05-01), Reese et al.
patent: 4207302 (1980-06-01), Smith
patent: 4263148 (1981-04-01), Symens et al.
patent: 4278640 (1981-07-01), Allen et al.
Flotation Fundamentals, 1970.

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