发明公开
EP1842844A1 Continuous process for the production of mono- or dicarboxylic acid alkyl amides
有权
Kontinuierliches Verfahren zur Herstellung vonMonocarbonsäureAlkylamiden
- 专利标题： Continuous process for the production of mono- or dicarboxylic acid alkyl amides
- 专利标题（中）： Kontinuierliches Verfahren zur Herstellung vonMonocarbonsäureAlkylamiden
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申请号： EP06005589.4申请日： 2006-03-18
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公开(公告)号： EP1842844A1公开(公告)日： 2007-10-10
- 发明人: Bigorra Llosas, Joaquin Dr. , Raya, Javier , Brau Balague, Emilio , Seva, Manuel , Francia, Ivan , Valls, Ramon
- 申请人： Cognis IP Management GmbH
- 申请人地址： Henkelstrasse 67 40589 Düsseldorf DE
- 专利权人： Cognis IP Management GmbH
- 当前专利权人： Cognis IP Management GmbH
- 当前专利权人地址： Henkelstrasse 67 40589 Düsseldorf DE
- 代理机构： Fabry, Bernd
- 主分类号： C07C231/02
- IPC分类号： C07C231/02
摘要：
Suggested is a continuous process for the production of mono- or dicarboxylic acid alkyl amides, which is characterised in that:
(a) fresh mono- or dicarboxylic acid is placed into a first reactor (R1) connected with a distillation column (C1) and subjected to a reaction with ammonia or gaseous alkyl amine to form a pre-mixture consisting of mono- or dicarboxylic acid alkyl amide and unreacted mono- or dicarboxylic acid, while the water of condensation is distilled off;
(b) said pre-mixture is transferred into a second reactor (R2) also equipped with a distillation column (C2) and subjected to a further reaction with ammonia or gaseous alkyl amine to substantially convert all unreacted mono- or dicarboxylic acid into mono- or dicarboxylic acid alkyl amide; and
(c) all unreacted ammonia or gaseous alkyl amine is transferred into the first reactor (R1) to start the amidation reaction.
(a) fresh mono- or dicarboxylic acid is placed into a first reactor (R1) connected with a distillation column (C1) and subjected to a reaction with ammonia or gaseous alkyl amine to form a pre-mixture consisting of mono- or dicarboxylic acid alkyl amide and unreacted mono- or dicarboxylic acid, while the water of condensation is distilled off;
(b) said pre-mixture is transferred into a second reactor (R2) also equipped with a distillation column (C2) and subjected to a further reaction with ammonia or gaseous alkyl amine to substantially convert all unreacted mono- or dicarboxylic acid into mono- or dicarboxylic acid alkyl amide; and
(c) all unreacted ammonia or gaseous alkyl amine is transferred into the first reactor (R1) to start the amidation reaction.
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