ChemicalBook CAS DataBase List 6-AMINO CAPRONITRILE

6-AMINO CAPRONITRILE synthesis

11synthesis methods

Product Name:6-AMINO CAPRONITRILE
CAS Number:2432-74-8
Molecular formula:C6H12N2
Molecular Weight:112.17

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Yield:2432-74-8 99%

Reaction Conditions:

with manganese(IV) oxide;ammonia at 200; under 9750.98 Torr;Reagent/catalyst;Temperature;Pressure;

Steps:

1-10
Pump caprolactam into the fixed-bed reactor (I), the reactor is filled with manganese oxide catalyst, and ammonia gas is simultaneously introduced.Control the molar ratio of ammonia and caprolactam to 35:1, reaction temperature 200, reaction pressure 1.3MPa,The total raw material space velocity is 2.0h-1, maintaining continuous in and out.After the reaction, the reaction liquid will continue to be pumped into the fixed bed reactor (II) for reaction,The reactor is filled with manganese oxide catalyst, the reaction temperature is 300, the reaction pressure is 12MPa, and the total raw material space velocity is 0.5h-1. At the end of the reaction, the reaction liquid was collected for negative pressure distillation, and the negative pressure distillation operating pressure was controlled to 5kPa.At the end liquid phase temperature of 150°C, caprolactam, 6-aminocapronitrile, water and the remainder of the kettle were separated.Apply the recovered caprolactam and ammonia (1% ammonia water) to the fixed bed (I) reaction,At the same time, 70% of the remainder of the kettle was applied to the fixed bed (II) reaction.Calculate the total yield of 6-aminocapronitrile in the recycling process.

References:

Jiangsu Yangnong Chemical Group Co., Ltd.;Jiangsu Ruixiang Chemical Co., Ltd.;Jiangsu Ruiheng New Materials Technology Co., Ltd.;Ningxia Rui Tai Technology Co., Ltd.;Xu Lin;Wang Gang;Nie Qingchao;Ding Kehong;Wang Genlin;Wang Cheng;Wang Yang;Xu Yue;Zhang Xi;Guo Yuxiu;Wang Hao;Lu Renbiao CN112094202, 2020, A Location in patent:Paragraph 0025-0055

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