发明名称 |
Process for preparing carboxylic acids by reaction of alkali metal carboxylates and liquid cation exchange agents. |
摘要 |
<p>A carboxylic acid is prepared by contacting an aqueous solution of the alkali metal or ammonium carboxylate with a liquid cation-exchange agent dissolved in an organic solvent in which the acid is water-immiscible. As an example, an aqueous solution of trisodium N-(2-hydroxyethyl)ethylenediaminetriacetate is contacted with di(2-ethylhexyl)phosphoric acid in kerosene to thereby form N-(2-hydroxyethyl) ethylenediaminetriacetic acid in the aqueous solution.</p> |
申请公布号 |
EP0040254(A1) |
申请公布日期 |
1981.11.25 |
申请号 |
EP19800102737 |
申请日期 |
1980.05.16 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
WILSON, DAVID ALAN;SCHMIDT, ROY WILBUR |
分类号 |
C07C51/02;(IPC1-7):07C101/26;07C51/02 |
主分类号 |
C07C51/02 |
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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