Method for removing paraffin from waxy petroleum products

Details Method for removing paraffin from waxy petroleum products Method for removing paraffin from waxy petroleum products

C - Chemistry, Metallurgy

10

G

196/255

C10G 73/12 (2006.01) C10G 73/04 (2006.01) C10G 73/22 (2006.01)

Patent

CA 2027201

A method for the solvent dewaxing of wax-containing petroleum products with at least one solvent suitable for dewaxing and a polymeric dewaxing aid comprising polyacrylates, by mixing the products to be dewaxed with the solvent and the polymeric dewaxing aid, chilling the mixture so obtained, and separating the precipitated wax, the dewaxing aid used being a mixture of (I) a polymer of esters of acrylic acid with C10-C40 alkanols and (II) a polymer of esters of methacrylic acid with alkanols comprising more than 10 weight percent of branched alkanols, the weight ratio between components (I) and (II) ranging from 1:20 to 20:1.

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