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Catalyst for preparing benzyl amine

A technology of catalyst and co-catalyst, which can be applied in the direction of Raney type catalyst, physical/chemical process catalyst, preparation of amino compounds, etc., can solve the problem of low yield of benzylamine and so on

Inactive Publication Date: 2004-01-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The technical problem to be solved by the present invention is to overcome the problem that the yield of benzylamine is not high during the hydrogenation of benzonitrile to benzylamine in the previous literature, and to provide a new catalyst for the preparation of benzylamine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2～5

[0034] According to each operation step and condition of embodiment 1, just change the composition of catalyst, its reaction result is listed in table 1. [Comparative Example 1]

Embodiment 7

[0038] According to the various operating steps and conditions of Example 1, only in the reaction conditions, the reaction temperature is 50 ° C, ethanol: benzonitrile (volume / volume) is 7: 1, and the reaction time is 60 minutes, and the reaction result is benzonitrile The conversion rate was 99.7%, and the yield of benzylamine was 97.6%.

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PUM

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Abstract

A catalyst for preparing benzylamine by catalytic hydrogenation of phenylmethyl nitrile is composed of the primary catalyst which is skeleton Ni and the secondary catalyst chosen from RE, Cr or W or their mixture, Mo, Ti, Zr, P, Bi, Sn, B, Al, Ga and halogen. Its advatnage is high output rate of benzylamine.

Description

technical field [0001] The present invention relates to catalysts for the preparation of benzylamines. Background technique [0002] Benzylamine (Benzylamine), molecular formula C 6 h 5 CH 2 NH 2 , molecular weight 107.16, boiling point 184.5°C, n D 20 1.5401, auto-ignition point 390°C, flash point 65°C, relative density 0.9826. Benzylamine is a colorless, oily liquid with a slight ammonia odor, which is alkaline and easily absorbs CO in the air. 2 It forms white crystals, is miscible with water, alcohol and ether, forms azeotropes with aniline, phenol and m-cresol, and is highly irritating and toxic to skin and mucous membranes. [0003] Benzylamine has a strong basicity, and can react with phenol, p-cresol, formic acid, etc. to form addition products. Benzylamine is an important organic chemical raw material and fine chemical intermediate, used in medicine, pesticides, surfactants, corrosion inhibitors, dyes, explosives, chemical reagents, CO...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J25/02C07C209/48C07C211/27
Inventor 刘仲能侯闽渤朱海燕宗弘元
Owner CHINA PETROLEUM & CHEM CORP