Dewaxing waxy hydrocarbon oils using di-alkyl fumarate-vinyl...

Details Dewaxing waxy hydrocarbon oils using di-alkyl fumarate-vinyl... Dewaxing waxy hydrocarbon oils using di-alkyl fumarate-vinyl...

C - Chemistry, Metallurgy

10

G

196/256

C10G 73/32 (2006.01) C10G 73/04 (2006.01)

Patent

CA 1279599

ABSTRACT OF THE DISCLOSURE A solvent dewaxing process is described comprising mixing a waxy hydrocarbon oil, preferably a waxy petroleum oil, most preferably a waxy lube or specialties oil, with dewaxing solvent and a dewaxing aid comprising (A) a dialkylfumarate-vinyl laurate copolymer and (B) a wax-naphthalene condensation copolymer, a dialkyl fumarate-vinyl acetate copolymer or an ethylene vinyl acetate copolymer and chilling the mixture to yield a slurry comprising solid particles of precipitated wax and a solution of dewaxed oil and solvent and separating said solid wax from dewaxed oil solution.

506639

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