Manufacture of phosphoric acid using acid phosphate ester antifo

Details Manufacture of phosphoric acid using acid phosphate ester antifo Manufacture of phosphoric acid using acid phosphate ester antifo

1975-09-19

1978-04-11

Vertiz, O. R.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

252358, C01B 2516

Patent

active

040839362

ABSTRACT:
In the manufacture of phosphoric acid by the acidulation of phosphate rock detrimental foaming is reduced by the use of certain phosphate esters of aliphatic alcohols as defoaming agents. Aqueous emulsions of such esters comprise novel, useful compositions of matter.

REFERENCES:
patent: 2147415 (1939-02-01), Tucker
patent: 2200485 (1940-05-01), Broderson et al.
patent: 2360135 (1944-10-01), Hull et al.
patent: 2407589 (1946-09-01), Treman et al.
patent: 2797198 (1957-06-01), Chappell
patent: 2903432 (1959-09-01), Hwa
patent: 3277217 (1966-10-01), Nehmsmann et al.
Chemical Industries, vol. 64, 5/49, Chemical Antifoaming Agents, Ross, pp. 757 to 759.

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