| 发明名称 |
Neutral oil removal from natural cresylic acid mixtures |
| 摘要 |
Natural cresylic acid is processed to remove neutral oil impurities by countercurrent liquid/liquid extraction using a heavy phase solvent of a mixture of glycerol and another polyhydric alcohol, preferably triethylene glycol. The light phase solvent is a light paraffinic or cycloparaffinic hydrocarbon. <IMAGE> |
| 申请公布号 |
ZA9804165(B) |
申请公布日期 |
1998.11.30 |
| 申请号 |
ZA19980004165 |
申请日期 |
1998.05.18 |
| 申请人 |
DAKOTA GASIFICATION COMPANY |
发明人 |
DAVID H. DUNCAN;GENE G. BAKER;DANA J. MAAS;KEVIN M. MOHL;ALFRED K. KUHN |
| 分类号 |
C10G21/14;B01D11/04;C07C37/00;C10C1/04;C10C1/18 |
主分类号 |
C10G21/14 |
| 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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