Demulsifiers

Details Demulsifiers Demulsifiers

B - Operations, Transporting

01

D

134/56

B01D 17/05 (2006.01) B01D 17/04 (2006.01) C10G 33/04 (2006.01)

Patent

CA 1267584

Case 6237(2) ABSTRACT OF THE DISCLOSURE Demulsifiers This invention relates to a demulsifier composition comprising a blend of a polyoxyalkylene-polysiloxane copolymer and an alkoxylated phenol-aldehyde resin. The polyoxyalkylene units in the copolymer have a molecular weight below 500 and the polysiloxane units have 3 to 50 silicon atoms. The resin has a phenol to aldehyde ratio of 2:1 to 1:5 and a weight average molecular weight of 500-20,000. The composition shows synergistic demulsification activity when compared with that of the individual components.

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