Solvent dewaxing waxy hydrocarbon oils using dewaxing aid

Details Solvent dewaxing waxy hydrocarbon oils using dewaxing aid Solvent dewaxing waxy hydrocarbon oils using dewaxing aid

1978-07-21

1980-03-11

Levine, Herbert

Mineral oils: processes and products

Paraffin wax; treatment or recovery

Separation of paraffin from oil

208 38, C10G 4306, C10G 4308

Patent

active

041927338

ABSTRACT:
An improved dewaxing aid for solvent dewaxing process comprising a mixture of (A) an .alpha.-olefin polymer having an average molecular weight of from about 10,000 to 1,000,000 and a wide molecular weight distribution exceeding the range of from about 10,000 to 1,000,000 but falling within the range of from about 2,000 to 3,000,000 and (B) an olefin-vinyl acetate copolymer having a vinyl acetate content of from about 15 to 40 wt.% and an average molecular weight of from about 50,000 to 1,000,000. The .alpha.-olefin polymer having a high molecular weight and wide molecular weight distribution, when combined with the olefin-vinyl acetate copolymer, synergistically improves the efficiency of wax separation.

REFERENCES:
patent: 3355379 (1967-11-01), Leonard
patent: 3458430 (1969-07-01), Henselman et al.
patent: 3981850 (1976-09-01), Wisotsky et al.

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