Use of demulsifying mixtures for breaking petroleum emulsions

Details Use of demulsifying mixtures for breaking petroleum emulsions Use of demulsifying mixtures for breaking petroleum emulsions

1978-08-10

1980-01-15

Padgett, Benjamin R.

Compositions

Preservative agents

Anti-corrosion

252343, 252345, 252358, B01D 1704

Patent

active

041838203

ABSTRACT:
This invention relates to an emulsion-breaking composition comprising about 70 to 99.8% by weight of at least one silicon-free demulsifier, and about 0.2 to 30% by weight of a mixed polyoxyalkylene-polysiloxane block polymerizate, the polyoxyalkylene blocks of which have a molecular weight of about 500 to 4000 and are composed of polyoxyethylene and polyoxypropylene blocks in a weight ratio of 40 to 60 to 100:0, and the polysiloxane blocks of which contain 3 to 50 silicon atoms per block. The invention also includes a process for breaking emulsions using the novel emulsion-breaking composition.

REFERENCES:
patent: 2499370 (1950-03-01), DeGroote et al.
patent: 2524889 (1950-10-01), DeGroote et al.
patent: 2574543 (1951-11-01), DeGroote et al.
patent: 3677962 (1972-07-01), Koerner et al.

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