Verfahren zur Herstellung von µ-Alanindiessigsäure oder ihren Alkalimetall- oder Ammoniumsalzen
摘要
The invention relates to a process for producing beta-alanine diacetic acid (Ia) or its alkali metal or ammonium salts (Ib) in which imino diacetic acid is caused to react with acryl nitrile or C1-C4 alkyl acrylic acid esters in a slightly acid to slightly basic aqueous medium and then the nitrile or ester groups are saponified to the acid or a salt. The products made according to the invention are particularly useful as complex formers.
申请公布号
DE4216560(A1)
申请公布日期
1993.11.25
申请号
DE19924216560
申请日期
1992.05.20
申请人
BASF AG, 67063 LUDWIGSHAFEN, DE
发明人
KNEIP, MICHAEL,DR., 6710 FRANKENTHAL, DE;SCHNEIDER, JUERGEN, DR., 6713 FREINSHEIM, DE;OFTRING, ALFRED, DR., 6702 BAD DUERKHEIM, DE
