Process for the production of ether carboxylic acids and salts thereof
    7.
    发明授权
    Process for the production of ether carboxylic acids and salts thereof 失效
    用于制备醚羧酸及其盐的方法

    公开(公告)号:US5463114A

    公开(公告)日:1995-10-31

    申请号:US226903

    申请日:1994-04-13

    IPC分类号: C07C51/235

    CPC分类号: C07C51/235

    摘要: Ether carboxylic acids of the formula (I):R--(OC.sub.m H.sub.2m).sub.n --O--CH.sub.2 COOM (I)wherein R is an alkyl group having from 1 to about 22 carbon atoms, an aryl group or an aralkyl group; m is 2 or 3; n is a number from 1 to about 200; M is an alkali metal are made by oxidation of an ether alcohol wherein the ether alcohol, oxygen, and an alkali metal hydroxide are continuously added to an aqueous dispersion of a noble metal catalyst under reduced pressure.

    摘要翻译: 式(I)的醚羧酸:R-(OCmH 2 m)n -O-CH 2 COOM(I)其中R是具有1至约22个碳原子的烷基,芳基或芳烷基; m为2或3; n是1至约200的数; M是通过醚醇氧化制备的碱金属,其中将醚醇,氧和碱金属氢氧化物在减压下连续加入到贵金属催化剂的水分散体中。