Urea dewaxing of low n-paraffin content oils

Details Urea dewaxing of low n-paraffin content oils Urea dewaxing of low n-paraffin content oils

C - Chemistry, Metallurgy

10

G

196/243, 196/51

C10G 73/00 (2006.01) C10G 73/24 (2006.01)

Patent

CA 1039675

UREA DEWAXING OF LOW N-PARAFFIN CONTENT OILS (D#71,200-DTA-73F) ABSTRACT OF THE DISCLOSURE Mineral oils containing small amounts (less than 2 weight percent) of normal paraffins may be urea dewaxed to produce refrigerator oils having Freon cloud or flock points of at least minus 55°C. by utilizing large excesses of the amount of crystalline urea theoretically required for complete conversion of the n-paraffins into solid ad- duct and conducting the adduct formation under conditions of vigorous agitation. -I-

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