Process for the manufacture of alkali metal salts of amino polyc

Details Process for the manufacture of alkali metal salts of amino polyc Process for the manufacture of alkali metal salts of amino polyc

1975-04-25

1976-06-29

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 9910

Patent

active

039668037

ABSTRACT:
Production of alkali metal salts of amino polycarboxylic acids by reaction of a suitable carboxylic acid nitrile with aqueous alkali at elevated temperature. The salts are produced from an amino polycarboxylic acid nitrile suspension in an aqueous alkali metal hydroxide solution, which has a minimum strength of substantially 30 % by weight and contains at least stoichiometric proportions of alkali metal hydroxide; the suspension is introduced into a reactor heated to a temperature between 60.degree. and 150.degree. C, and salt formation is effected by thorough agitation.

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patent: 2388189 (1945-10-01), Schweitzer
patent: 3061628 (1962-10-01), Singer et al.
patent: 3183262 (1965-05-01), Singer et al.
patent: 3409666 (1968-11-01), Foreman
patent: 3463811 (1969-08-01), Godfrey et al.
patent: 3463812 (1969-08-01), Thunberg et al.
patent: 3772374 (1973-11-01), Shen

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