| 摘要 |
PCT No. PCT/US94/03770 Sec. 371 Date Jan. 16, 1996 Sec. 102(e) Date Jan. 16, 1996 PCT Filed Apr. 6, 1994 PCT Pub. No. WO94/24091 PCT Pub. Date Oct. 27, 1994An improved process is discloses to prepare an amino carboxylic acid salt. According to the process an aqueous solution of an amino alcohol is contacted with an alkali metal hydroxide in the presence of an effective amount of Raney copper catalyst that has from about 10 parts per million of an element selected from the group consisting of bismuth, tin, antimony, lead, germanium and mixtures thereof. |
