Process for preparing alkanolamines

Details Process for preparing alkanolamines Process for preparing alkanolamines

1995-06-22

1997-05-27

Burn, Brian M.

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

Organic compounds

Amino nitrogen containing

564477, C07C20902

Patent

active

056334087

ABSTRACT:
A process for preparing alkanolamines which comprises steps of reacting ammonia with an alkylene oxide in the presence of a carbonate of ammonia to obtain a crude alkanolamine solution, distilling off ammonia, carbon dioxide and water to regulate the content of carbon dioxide in the crude alkanolamine solution to 1% by weight or less, and distilling the crude alkanolamine solution to separate and collect the alkanolamines, whereby the production ratio of a monoalkanolamine can be increased and impurities can be decreased.

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patent: 4438281 (1984-03-01), Johnson, Jr.
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Patent Abstracts of Japan, vol. 95, No. 004, May 31, 1995 & JP-A-07070006 (Mitsui Toatsu Chemicals, Inc.), Mar. 14, 1995 *Abstract*.
K. Weissermel and H. J. Arpe, "Industrial Organic Chemistry--Main Materials and Intermediates", (Japanese Edition together with a partial translation), Tokyo Kagaku Dojin, p. 149, 1978.
Zh. Prikl. Khim., vol. 56, "Catalytic Reaction of Ethylene Oxide with Liquid Ammonia in the Presence of the Cation Exchanger Wofatite KPS", pp. 1966-1971, 1983.

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