Pyrolysis of heavies formed in production of unsaturated dinitri

Details Pyrolysis of heavies formed in production of unsaturated dinitri Pyrolysis of heavies formed in production of unsaturated dinitri

1977-07-05

1978-09-26

Brust, Joseph Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260464, 260465H, 2604653, 2604659, C07C12000, C07C12120, C07C12170

Patent

active

041170016

ABSTRACT:
An olefinically unsaturated mononitrile is reacted with a monadduct of an olefinically unsaturated mononitrile and an olefinically unsaturated hydrocarbon compound to produce a dinitrile product and undesired compounds having higher boiling points than the dinitrile product. The undesired compounds are separated from the dinitrile product and subjected to distillation to produce a light cut and a heavy cut thereof. The light cut is then subjected to pyrolysis conditions to decompose at least a portion thereof to olefinically unsaturated mononitrile, olefinically unsaturated hydrocarbon compound, and monoadduct, which can be recovered and recycled to the dinitrile synthesis.

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