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

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

1985-04-25

1986-06-10

Metz, Andrew H.

Mineral oils: processes and products

Paraffin wax; treatment or recovery

Separation of paraffin from oil

208 31, C10G 7304

Patent

active

045941424

ABSTRACT:
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.

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