Defoamer and processing aid for wet process phosphoric acid

Details Defoamer and processing aid for wet process phosphoric acid Defoamer and processing aid for wet process phosphoric acid

B - Operations, Transporting

01

D

134/56, 23/76

B01D 19/04 (2006.01) C01B 25/222 (2006.01)

Patent

CA 1245127

ABSTRACT OF THE DISCLOSURE defoamer composition comprising a mixture of defoaming effective amounts of monocarboxylic acid having from 12 to 26 carbon atoms, a monoalkanolamide, and an alcohol selected from the group consisting of primary linear aliphatic alcohols ranging from C4 to C20, primary branch aliphatic alcohols ranging from C4 to C20, and secondary alcohols ranging from C6 to C12; and a method of inhibiting foaming in a phosphate rock and sulfuric acid medium employed in the synthesis of phosphoric acid by the "wet process" manufacture of phosphoric acid which comprises adding to the reaction medium an effective amount of the above described defoamer composition.

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