| 发明名称 |
AROMATICS EXTRACTION FROM HYDROCARBON OIL USING TETRAMETHYLENE SULFOXIDE |
| 摘要 |
Aromatic hydrocarbons are selectively extracted from lube oil stocks comprising mixtures of same with non-aromatic hydrocarbons using tetramethyl sulfoxide as the extraction solvent. The oils so extracted are the heavier oils, those boiling above about 200 DEG C and identified as being at least lube base stock grade 60N and higher.
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| 申请公布号 |
WO9507248(A1) |
申请公布日期 |
1995.03.16 |
| 申请号 |
WO1994US10030 |
申请日期 |
1994.09.07 |
| 申请人 |
EXXON RESEARCH & ENGINEERING COMPANY |
发明人 |
ALWARD, SANDRA, J.;HAYTER, WILLIAM, N. |
| 分类号 |
C10G21/22;(IPC1-7):C07C7/10 |
主分类号 |
C10G21/22 |
| 代理机构 |
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