发明名称 |
Process for preparing 2,2-bis(4-hydroxy-phenyl) propane from distillation by-products thereof |
摘要 |
A process is disclosed for the production of 2,2-bis(4-hydroxyphenyl) propane, herein referred to as bisphenol-A, from by-products remaining after purification distillation of bisphenol-A produced from a condensation reaction of phenol and acetone. The process comprises mixing the by-products with phenol and adding anhydrous hydrogen chloride under superatmospheric pressure to the resulting mixture to isomerize those by-products isomerizable to bisphenol-A for subsequent recovery.
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申请公布号 |
US4192954(A) |
申请公布日期 |
1980.03.11 |
申请号 |
US19770863666 |
申请日期 |
1977.12.23 |
申请人 |
GENERAL ELECTRIC |
发明人 |
BARKER, HENRY P;MITCHELL, LAWRENCE C |
分类号 |
C07C37/20;C07C27/00;C07C37/00;C07C39/16;C07C67/00;(IPC1-7):C07C37/44;C07C37/24 |
主分类号 |
C07C37/20 |
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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