The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 10, 1985

Filed:

Feb. 15, 1984
Applicant:
Inventors:

Eugene F McCaffrey, Mississauga, CA;

Alfred J Dieterman, Mississauga, CA;

Luba Knazko, Palgrave, CA;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
252321 ; 252358 ; 423320 ;
Abstract

A 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 C.sub.4 to C.sub.20, primary branch aliphatic alcohols ranging from C.sub.4 to C.sub.20, and secondary alcohols ranging from C.sub.6 to C.sub.12 ; 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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