Dilchill dewaxing using wash filtrate solvent dilution

Details Dilchill dewaxing using wash filtrate solvent dilution Dilchill dewaxing using wash filtrate solvent dilution

1977-07-05

1979-03-20

Levine, Herbert

Mineral oils: processes and products

Paraffin wax; treatment or recovery

Separation of paraffin from oil

208 38, C10G 4308

Patent

active

041452755

ABSTRACT:
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.

REFERENCES:
patent: 2446514 (1948-08-01), Stewart et al.
patent: 3083154 (1963-03-01), Gersic et al.
patent: 3458431 (1969-07-01), Nixon
patent: 3644195 (1972-02-01), Gudelis et al.
patent: 3775288 (1973-11-01), Eagen et al.

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