发明名称 |
Use of surfactants in phenol sulfonate dehydration |
摘要 |
A process for dehydrating phenol sulfonate salts by azeotropic distillation of water wherein a surfactant such as sodium dodecylbenzene sulfonate is used to prevent the salts from agglomerating and plating out on the walls of the reaction vessel.
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申请公布号 |
US5095132(A) |
申请公布日期 |
1992.03.10 |
申请号 |
US19900617742 |
申请日期 |
1990.11.26 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
PINKERTON, ROBERT B. |
分类号 |
C07C303/44;C07C309/42 |
主分类号 |
C07C303/44 |
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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