Continuous manufacture of formamide

Details Continuous manufacture of formamide Continuous manufacture of formamide

C - Chemistry, Metallurgy

07

C

260/556.8

C07C 103/127 (1980.01)

Patent

CA 1072118

O.Z. 32,004 ABSTRACT OF THE DISCLOSURE: Formamide is manufactured continuously from methyl formate and gaseous ammonia. The reaction is carried out in a reactor at from 30 to 90°C, from 5 to 20% by volume of the reactor output is drawn off continuously and fed to the form- amide working-up stage, and the remainder of the reactor output is cooled, in an external circuit maintained by means of a pump, to from 25 to 60°C and is mixed with the amount of fresh methyl formate required for steady-state operation, after which the appropriate amount of gaseous ammonia is introduced into the stream of liquid through a jet, by the sucking-jet principle, and the stream of liquid is recycled to the reactor.

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