Solvent dewaxing waxy hydrocarbon oils using dewaxing aid
Patent
·
OSTI ID:5722012
An improved dewaxing aid for solvent dewaxing process is made up of 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 and (B) an olefin-vinyl acetate copolymer hav 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 olefinvinyl acetate copolymer, synergistically improves the efficiency of wax separation.
- Assignee:
- Toa Nenryo Kogyo K K (Japan)
- Patent Number(s):
- US 4192733
- OSTI ID:
- 5722012
- Country of Publication:
- United States
- Language:
- English
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