发明名称 |
Selective extraction using mixed solvent system |
摘要 |
A method for concentrating the amount of alkylated mono-aromatics in a lubricating oil feedstock useful as a feedstock for sulfonation. The method comprises extracting a feedstock rich in aromatics with a solvent selected from NMP, phenol and furfural, said feedstock containing sufficient water to provide a raffinate having a target VI between about 86 and 97 under extraction conditions of treat and temperature selected to achieve the target VI. The raffinate is then hydrofmed and solvent dewaxed.
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申请公布号 |
US6416655(B1) |
申请公布日期 |
2002.07.09 |
申请号 |
US20000571150 |
申请日期 |
2000.05.15 |
申请人 |
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY |
发明人 |
KENT CHRISTOPHER J. S.;ZINICOLA ANNE M. |
分类号 |
C10G21/16;C10G21/20;C10G21/30;C10G45/06;C10G45/08;C10G67/04;C10G67/14;C10G73/10;C10G73/12;C10M101/02;C10M177/00;C10N70/00;(IPC1-7):C10G21/00 |
主分类号 |
C10G21/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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