Process for producing a nitrile
AssigneeToray Industries, Inc.
InventorsShotaro Matsuoka, Masaaki Suematsu, Mamoru Ishikawa
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Abstract
Process for producing a nitrile by dehydration reaction of an amide in the presence of a carboxylic acid having the same radical as the amide, or by adding urea to a carboxylic acid with the carboxylic acid either molten or dissolved in a solvent, where the amount of urea used is less than about 0.8 in molar ratio to the carboxylic acid, or when an exhaust gas distillate line connected to the reactor is kept at about 60.degree. C. or higher, or while a gas that is inert to the reaction is fed into the reaction and the produced nitrile and water are concurrently distilled out.
Claims13
A process for producing a nitrile represented by the following formula (II),
- R--CN (II)
- the steps which comprise:
- dehydrating an amide represented by the following formula (I), and:
- ##STR6## effecting said dehydration of said amide in the presence of a carboxylic acid represented by the following formula (III):
- R--COOH (III),
- where R represents a radical selected from the group consisting of a substituted or non-substituted alkyl group, an alkenyl group, an alkynyl group, an aryl group, and an aralkyl group and mixtures thereof.
Dependencies are inferred from the claim text.