Dilchill dewaxing using wash filtrate solvent dilution

C - Chemistry – Metallurgy – 10 – G

Patent

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C10G 73/04 (2006.01) C10G 73/06 (2006.01) C10G 73/32 (2006.01)

Patent

CA 1089392

ABSTRACT OF THE DISCLOSURE An improved dilution chilling dewaxing process for waxy petroleum oils wherein the dewaxed oil yield is increased and the solvent recovery requirements are decreased by recycling solvent-rich wash filtrate from the first stage wax filters back into the dilution chilling dewaxing zone.

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