发明名称 |
PROCESS FOR THE RECOVERY OF CARBOXYLIC ACIDS FROM MIXTURES CONTAINING GLYCOL ESTERS DERIVED FROM THESE ACIDS |
摘要 |
A process for the recovery of carboxylic acids from mixtures containing glycol esters derived from these acids. The process comprises reacting these mixtures at boiling with water to form carboxylic acid and entraining the carboxylic acid formed by means of the water by azeotropic distillation, so as to separate off a mixture of carboxylic acid and water. This mixture is subjected to extractive distillation by means of an organic solvent which is insoluble in water and in which water is insoluble. A mixture of water and organic solvent is thereby separated from a solution of carboxylic acid in the organic solvent. |
申请公布号 |
DE3063517(D1) |
申请公布日期 |
1983.07.07 |
申请号 |
DE19803063517 |
申请日期 |
1980.09.22 |
申请人 |
PROPYLOX (SOCIETE ANONYME) |
发明人 |
HARDY, NICOLAS |
分类号 |
C07D301/14;C07C51/00;C07C51/44;C07C51/46;C07C53/00;C07C67/00;(IPC1-7):C07C53/12;C07C51/09 |
主分类号 |
C07D301/14 |
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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