Solvent dewaxing waxy hydrocarbon distillates using a...

Details Solvent dewaxing waxy hydrocarbon distillates using a... Solvent dewaxing waxy hydrocarbon distillates using a...

C - Chemistry, Metallurgy

10

G

196/255

C10G 73/04 (2006.01)

Patent

CA 1249544

ABSTRACT OF THE DISCLOSURE This invention relates to solvent dewaxing processes, for dewaxing waxy hydrocarbon oils using a dewaxing aid, which dewaxing aid comprises a mixture of (A) polyalkyl acrylate having alkyl group side chain length of from 10-26 carbons (excluding branching) and (B) an n-alkyl methacrylate polymer having alkyl group side chain length of from 10-20 carbons (excluding branching). Component (A) typically has a number average molecular weight of from 3,000 to 500,000 while component (B) typically has a number average molecular weight of from 5,000 to 200,000. The combination (A) plus (B) may be employed in a weight ratio within the range from about l/100 to 100/1, preferably about 1/6 to 2/1 and at an aid does level ranging from about 0.01 wt % to 1 wt %, preferably 0.02 to 0.2 wt % active ingredient.

453701

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