Preparation of aminomethanols

Details Preparation of aminomethanols Preparation of aminomethanols

1981-11-30

1983-07-26

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

203 35, 203 91, 564204, 564497, 564503, B01D 310, B01D 334

Patent

active

043953115

ABSTRACT:
Crude aminomethanols are converted to salt form by the addition of a strong acid and subsequently distilled under vacuum. The resulting purified aminomethanol is essentially free of unreacted aldehydes and other volatile impurities.

REFERENCES:
patent: 2139123 (1938-12-01), Haas et al.
patent: 2139124 (1938-12-01), Haas et al.
patent: 2395281 (1946-02-01), Loder
patent: 3131132 (1964-04-01), Moss et al.
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patent: 3213143 (1965-10-01), Fallstad
patent: 3402203 (1968-09-01), Tindall
patent: 3429925 (1969-02-01), Cour
patent: 3453183 (1969-07-01), Okubo et al.
patent: 4166828 (1979-09-01), McDonald

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