Preparation method of 3-chloro-2,6-diethyl aniline

A technology of diethylaniline and chloroaniline, applied in chemical recovery, organic chemistry, etc., can solve problems such as pollution, low product yield, poor quality performance, etc., and achieve the effect of simple process, high product quality and stable reaction
CN1903832AInactive Publication Date: 2007-01-31黄秋耉
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
黄秋耉
Publication Date
2007-01-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses a preparation method of 3-chloro-2,6-diethylaniline. Said method includes the following steps: heating metal or its salt in aniline or alkylaniline and making them produce reaction to obtain aniline or alkylaniline metal complex catalyst, adding m-chloroaniline into the obtained complex catalyst, under the condition of 150deg.C-400deg.C and 10MPa-25MPa introducing ethylene, under the action of aniline or alkylaniline metal complex catalyst producing ethylated complex, then making m-chloroailine and ehylated complex produce metathetical reaction so as to obtain 3-chloro-2,6-diethylaniline, and make the complex catalyst obtain regeneration.
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Description

technical field

[0001] The invention relates to a preparation method of 3-chloro-2,6-diethylaniline. Background technique

[0002] The research and development of polyurethane (referred to as PU) materials has a history of more than 60 years. In recent years, with the continuous expansion of the application of PU materials, the number of its products has leapt to the top of the world's six major synthetic materials, and the global output is more than 1,000 About ten thousand tons.

[0003] Due to its excellent performance, PU materials are widely used in various fields of the national economy and in all aspects of people's basic necessities of life. PU materials are generally formed by polycondensation of polyether or polyester polyols and polyisocyanates. In order to expand the application range of PU materials and improve their various physical properties, small molecules called "chain extenders" are added to the PU synthesis process. Materials, such as polyols, fatty al...

Claims

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