Şunu aradınız:: ethylsuccinonitrile (İngilizce - Fransızca)

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English

ethylsuccinonitrile

French

 

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İngilizce

Fransızca

Bilgi

İngilizce

the preferred dinitrile compounds of the invention are chosen from the group consisting of adiponitrile, methylglutaronitrile and ethylsuccinonitrile.

Fransızca

les composes dinitriles préfères de l'invention sont choisis dans le groupe comprenant l'adiponitrile, le methyl-glutaronitnle, l'éthyl succmonitrile.

Son Güncelleme: 2014-12-03
Kullanım Sıklığı: 1
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İngilizce

during the preparation of adiponitrile by hydrocyanation of butadiene, with the intermediate production of pentenenitriles, large amounts of methylglutaronitrile and ethylsuccinonitrile are inevitably obtained.

Fransızca

lors de la préparation de l'adiponitrile par hydrocyanation du butadiène, avec obtention intermédiaire de pentene-nitriles, on obtient de manière fatale d'importantes quantités de méthylglutaronitrile et d'éthylsuccinonitrile.

Son Güncelleme: 2014-12-03
Kullanım Sıklığı: 1
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İngilizce

the invention relates to a method for producing mixtures containing adiponitrile, characterised by the following method steps: a) reaction of 3-pentenenitrile with hydrogen cyanide in the presence of a hydrocyanation catalyst, a promoter and a solvent, to give a hydrocyanation product, containing 3-pentenenitrile, adiponitrile, methylglutaronitrile, ethylsuccinonitrile, the solvent, the hydrocyanation catalyst, the promoter and possible decomposition products from the catalyst, b) distillation of the hydrocyanation product from step a) to give a stream (1) as top product, containing 3-pentenenitrile and a stream (2) as bottom product, containing adiponitrile, methylglutaronitrile, ethylsuccinonitrile, the majority of the solvent, the hydrocyanation catalyst, and the promoter, c) extraction of the stream (2) with an extracting agent to give a stream (3), containing the majority of the solvent, the hydrocyanation catalyst and the extraction agent and a stream (4), containing the majority of the adiponitrile, methylglutaronitrile, ethylsuccinonitrile and promoter.

Fransızca

la présente invention concerne un procédé de préparation de composés contenant de l'adipodinitrile, qui se caractérise par les opérations suivantes : a) conversion de 3-pentène nitrile avec de l'acide cyanihydrique en la présence d'un catalyseur d'hydrocyanuration, d'un promoteur et d'un diluant, pour obtenir une sortie d'hydrocyanuration qui contient du 3-pentène nitrile, de l'adipodinitrile, du méthyl glutardinitrile, de l'éthyl succinonitrile, le diluant, le catalyseur d'hydrocyanuration, le promoteur et éventuellement des produits de décomposition du catalyseur; distillation de la sortie d'hydrocyanuration issue de l'étape a) pour donner un flux (1) en tant que produit de tête qui contient du 3-pentène nitrile, et un flux (2) en tant que produit de fond qui contient de l'adipodinitrile, du méthyl glutardinitrile, de l'éthyl succinonitrile, la partie prépondérante du diluant, du catalyseur d'hydrocyanuration et du promoteur; c) extraction du flux (2) avec un agent d'extraction pour donner un flux (3) qui contient la partie prépondérante du diluant, du catalyseur d'hydrocyanuration et de l'agent d'extraction, et un flux (4) qui contient la partie prépondérante de l'adipodinitrile, du méthylglutardinitrile, de l'éthyl succinonitrile et du promoteur.

Son Güncelleme: 2011-07-27
Kullanım Sıklığı: 1
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