Method of recovering primary and secondary amines

Details Method of recovering primary and secondary amines Method of recovering primary and secondary amines

1974-02-25

1977-12-06

Lutter, Frank W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

203 34, 203 49, 203 61, 26029351, 260563R, 260583R, 260583N, 260583P, 2605011, 544178, C07D29502

Patent

active

040616339

ABSTRACT:
A method of recovering primary or secondary amines from aqueous, organic or aquo-organic solutions of said amines by subjecting these solutions to distillation or rectification in the presence of carbonic acid.

REFERENCES:
patent: 2755282 (1956-07-01), Hachmuth
patent: 2853489 (1958-09-01), Moon
patent: 3072662 (1963-01-01), Murray et al.
patent: 3131221 (1964-04-01), Remes et al.
patent: 3413350 (1968-11-01), Cross et al.
patent: 3414619 (1968-12-01), Cross et al.
patent: 3421983 (1969-01-01), Buchsbaum
patent: 3725210 (1973-04-01), Otsuka et al.
patent: 3783147 (1974-01-01), Calicchia et al.
"Mass Transfer Operations", Treybal, McGraw-Hill, 1955, pp. 340 & 341.

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