| 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.
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| 申请公布号 |
US5964987(A) |
申请公布日期 |
1999.10.12 |
| 申请号 |
US19970929550 |
申请日期 |
1997.09.15 |
| 申请人 |
DAKOTA GASIFICATION COMPANY |
发明人 |
DUNCAN, DAVID H.;BAKER, GENE G.;MAAS, DANA J.;MOHL, KEVIN M.;KUHN, ALFRED K. |
| 分类号 |
C10G21/14;B01D11/04;C07C37/00;C10C1/04;C10C1/18;(IPC1-7):B01D3/34;C07C37/72;C07C37/74 |
主分类号 |
C10G21/14 |
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代理人 |
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