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Expired
Application number
GB697525A
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BASF SE
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BASF SE
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Priority to GB697525ApriorityCriticalpatent/GB237528A/en
Publication of GB237528ApublicationCriticalpatent/GB237528A/en
C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Formamide is prepared by passing the vapour of ammonium formate or formic acid together with free ammonia, and with or without water, over a contact mass heated to a temperature between 100 DEG and 200 DEG C. The contact mass is preferably a dehydrating agent, e.g. bauxite, and is heated to a high temperature before use. The formamide can be separated from the reaction gases by fractional cooling.
GB697525A1925-03-141925-03-14Improvements in the manufacture and production of formamide
ExpiredGB237528A
(en)