Solvent dewaxing waxy hydrocarbon oils using dewaxing aid
Patent
·
OSTI ID:6273837
An improved dewaxing aid for solvent dewaxing processes comprising a mixture of (A) lithium isostearate and (B) a polymer of an ester of at least one aliphatic alcohol with methacrylic acid or acrylic acid having an average molecular weight ranging from between about 300,000 to 2,000,000. The lithium isostearate, when combined with the acrylic polymer, synergistically improves the efficiency of wax separation. This has been found to be especially useful for dewaxing heavy petroleum oil fractions, such as bright stocks.
- Assignee:
- Exxon Research and Engineering Co
- Patent Number(s):
- US 4377467
- OSTI ID:
- 6273837
- Country of Publication:
- United States
- Language:
- English
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