Defoamer and antifoamer composition and method for defoaming aqu

Details Defoamer and antifoamer composition and method for defoaming aqu Defoamer and antifoamer composition and method for defoaming aqu

1984-05-22

1986-12-23

Lechert, Jr., Stephen J.

Compositions

Preservative agents

Anti-corrosion

252358, B01D 1904

Patent

active

046311459

ABSTRACT:
There is provided a composition which comprises (1) a predominantly C.sub.6 -C.sub.12 high-boiling mixture of ketones, ethers, alcohols, esters, and aldehydes and (2) a fatty acid ester, such as sorbitan monooleate. Optionally, it can contain also a polyglycol having an average molecular weight of 3,800 or higher.
There is provided also a method for defoaming an aqueous fluid system and preventing the formation of foam in said system, which method comprises adding to said system an effective defoaming and antifoaming amount of the aforesaid composition.

REFERENCES:
patent: 2799650 (1957-07-01), McDermott et al.
patent: 2854417 (1958-09-01), Edwards et al.
patent: 4122032 (1976-10-01), Hollerich
Ross, "Chemical Antifoaming Agents", Chemical Industries, May 1949, pp. 757-759.

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