| 发明名称 |
METHOD FOR RECOVERING MATERIAL VALUES FROM BISPHENOL TARS |
| 摘要 |
<p>Phenol and isopropenylphenol are recovered from BPA tars by sparging the fluidized BPA tar while heating in the presence of a basic catalyst. Sparging dramatically increases the efficiency of phenol and isopropenylphenol recovery. Recovered isopropenylphenol may be converted to bisphenol A in the distillate by reaction with phenol and an acidic catalyst.</p> |
| 申请公布号 |
WO0222531(A8) |
申请公布日期 |
2003.08.07 |
| 申请号 |
WO2001US21858 |
申请日期 |
2001.07.11 |
| 申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
SHAFER, SHELDON, JAY;PRESSMAN, ERIC, JAMES;LEE, JULIA, LAM |
| 分类号 |
C07C37/86;C07B61/00;C07C37/00;C07C37/52;C07C39/04;C07C39/16;C07C39/19;(IPC1-7):C07C37/00 |
主分类号 |
C07C37/86 |
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