Process to prepare amino carboxylic acid salts
AssigneeMonsanto Company
InventorThaddeus S. Franczyk
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Abstract
An improved process is disclosed 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 a Raney copper catalyst that has from about 50 parts per million to about 10,000 parts per million of an element selected from the group consisting of chromium, titanium, niobium, tantalum, zirconium, vanadium, molybdenum, manganese, tungsten, cobalt, nickel and mixtures thereof.
Claims10
A process to manufacture an amino carboxylic acid salt which comprises contacting an aqueous solution of an amino alcohol represented by the formula:
- ##STR2## wherein R.sup.1 and R.sup.2 are individually selected from the group consisting of hydrogen, --CH.sub.2 CH.sub.2 OH, --CH.sub.2 COOH, an alkyl group having from 1 to 6 carbon atoms, and phosphonomethyl;
- with an alkali metal hydroxide in the presence of an effective amount of a Raney copper catalyst containing from about 50 parts per million to about 10,000 parts per million of an element selected from the group consisting of chromium, titanium, niobium, tantalum, zirconium, vanadium, molybdenum, manganese, tungsten, cobalt, nickel and mixtures thereof.
Dependencies are inferred from the claim text.