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Ferric trichloride modified ion exchange resin catalyzer, method of manufacturing the same and application thereof

A technology of exchange resin and ferric chloride, applied in physical/chemical process catalysts, chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, etc., can solve high cost and low efficiency of ammonium lactate esterification , complex preparation process and other issues

Inactive Publication Date: 2008-01-23
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of complex preparation process, high cost and low efficiency when the existing catalyst is used to catalyze the esterification of ammonium lactate with the existing ammonium lactate catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0004] Specific embodiment one: in this embodiment, ferric chloride modified ion exchange resin catalyst is the butanol of 40~45% ferric chloride by 10~60g hydrogen type strongly acidic cation exchange resin and 100~200g mass percentage concentration solution is made.

specific Embodiment approach 2

[0005] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the iron trichloride modified ion exchange resin catalyst is made of 15~30g hydrogen type strongly acidic cation exchange resin and 120~180g mass percentage concentration is 41~44% A solution of ferric chloride in butanol.

specific Embodiment approach 3

[0006] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the iron trichloride modified ion exchange resin catalyst is made of 17g of hydrogen type strong acid cation exchange resin and 105g of ferric chloride with a mass percentage of 43%. alcoholic solution.

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Abstract

The ferric chloride modification ion exchange resin catalyst and the preparation method and application is provided, which relates to a catalyst and the preparation method and application. In order to solve the problem of the existing ammonium lactate catalyst with complicated preparation techniques, high production cost and low ammonium lactate catalyzing esterification efficiency. The catalyst is made of hydrogenous strong acid cation exchange resin and butanol solution of ferric chloride. The preparation method of the catalyst is realized by the following method: firstly, washing resin and drying; secondly, prepare compound resin; thirdly, proceed alcohol washing and acetone washing to compound resin and then dry, the ferric chloride modification ion exchange resin catalyst can be achieved. The catalyst is used in the ammonium lactate esterification reaction, which has simple preparation techniques, the cost is reduced by 5 to 8 per cent and the ammonium lactate esterification rate can reach 78 to 96 per cent.

Description

technical field [0001] The invention relates to a catalyst and its preparation method and application. Background technique [0002] Lactate is a class of lactic acid derivatives that can be used as spices and industrial solvents and has excellent biodegradability. and other departments have been widely used. In the traditional lactic acid ester synthesis process, lactic acid is used as raw material and concentrated sulfuric acid is used as a catalyst, which has the disadvantages of serious corrosion of equipment, dark product color, many by-products and complicated post-treatment process; while the synthesis of lactic acid ester with ammonium lactate is difficult. It is helpful to realize the "clean production" process, but it is necessary to find an excellent catalyst to replace concentrated sulfuric acid to catalyze the esterification reaction. Patents CN1438213 and CN1290686 disclose the use of metal halides as catalysts to catalyze the esterification of ammonium lacta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/08C07C69/68
Inventor 汪群慧赵文军滕云孙晓红
Owner HARBIN INST OF TECH
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