Method for manufacture of amino-carboxylic acid salts
AssigneeNippon Shokubai Kagaku Kogyo Co., Ltd.
InventorsTakakiyo Goto, Hiromi Yokoyama, Hideyuki Nishibayashi
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Abstract
A method for the manufacture of an aminocarboxylic acid salt which comprises subjecting to dehydrogenation an amino alcohol represented by the general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 denote hydrogen, --CH.sub.2 CH.sub.2 OH, an alkyl group having 1 to 18 carbon atoms or an aminoalkyl group having 2 or 3 carbon atoms, which may be the same or different, in the presence of the hydroxide of at least one metal selected from the group consisting of alkali metals and alkaline earth metals, water and a catalyst containing copper metals or a copper compound and a zirconium compound.
Claims17
A method for the manufacture of an aminocarboxylic acid salt by dehydrogenation of an aminoalcohol which comprises contacting an amino alcohol represented by the formula (I):
- ##STR3## wherein R.sup.1 and R.sup.2 denote hydrogen, --CH.sub.2 CH.sub.2 OH, an alkyl group having 1 to 18 carbon atoms or an aminoalkyl group having 2 or 3 carbon atoms, which may be the same or different, with an alkali or alkaline earth metal hydroxide, water and a catalyst consisting essentially of (1) copper metal or a copper compound and (2) a zirconium compound, in the liquid phase wherein the copper content of said catalyst is between 3 and 50% by weight based on the total amount of copper and zirconium.
Dependencies are inferred from the claim text.