| 发明名称 |
Method of making ultrafiltration polyimide membrane and its use for recovery of dewaxing aid. |
| 摘要 |
<p>The production of polyimide ultrafiltration membranes made using a single solvent and containing a pore forming agent is described. Such membranes have been found to be useful for recovering dewaxing aid used in solvent dewaxing process.</p> |
| 申请公布号 |
EP0383521(A1) |
申请公布日期 |
1990.08.22 |
| 申请号 |
EP19900301471 |
申请日期 |
1990.02.12 |
| 申请人 |
EXXON RESEARCH AND ENGINEERING COMPANY |
发明人 |
ANDERSON, BRYCE PARKE |
| 分类号 |
B01D61/14;B01D71/64;C10G73/02;C10G73/04 |
主分类号 |
B01D61/14 |
| 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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