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Catalyst for preparing diol through hydration of epoxy compound and application of catalyst

An epoxy compound and catalyst technology, which is applied in the directions of organic compound/hydride/coordination complex catalyst, hydroxyl compound preparation, organic compound preparation, etc., can solve the problems of poor catalyst stability, cumbersome preparation steps and high cost, and achieves the The effect of easy separation, good selectivity and easy preparation

Active Publication Date: 2019-04-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the prior art has problems such as poor stability of the catalyst, cumbersome preparation steps, and high cost.

Method used

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  • Catalyst for preparing diol through hydration of epoxy compound and application of catalyst
  • Catalyst for preparing diol through hydration of epoxy compound and application of catalyst
  • Catalyst for preparing diol through hydration of epoxy compound and application of catalyst

Examples

Experimental program
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Effect test

Embodiment 1

[0037] The preparation of catalyst in the present invention.

[0038]Mix 1g of sodium dodecylbenzenesulfonate with 0.27g of tert-butyl methacrylate, 0.28g of n-butyl methacrylate, 0.33g of ethylene glycol dimethacrylate, 59mg of glucose pentaacetate and 20mg of peroxide Dissolve lauroyl in 1ml of chloroform to obtain a mixed solution; mix 1g of cetyltrimethyl-p-toluenesulfonium ammonium with 0.27g of tert-butyl methacrylate, 0.28g of n-butyl methacrylate, 0.33g of dimethyl Ethylene glycol acrylate, 59 mg of glucose pentaacetate and 25 mg of 4,4'-methylenebis(N,N-dimethylaniline) were dissolved in 1 ml of chloroform to obtain a mixed solution. After the solvent in the two mixed liquids was evaporated and the mixture was obtained, the mixture was dissolved in 100ml of 10% Co(Salen)-OTS chloroform solution respectively, and the solution containing sodium dodecylbenzenesulfonate and the solution containing hexadecyl The trimethyl-p-toluenesulfonium ammonium solution was mixed and...

Embodiment 2

[0040] Mix 1g of sodium dodecylbenzenesulfonate with 0.27g of tert-butyl methacrylate, 0.28g of n-butyl methacrylate, 0.33g of ethylene glycol dimethacrylate, 59mg of glucose pentaacetate and 20mg of peroxide Dissolve lauroyl in 1ml of chloroform to obtain a mixed solution; mix 1g of cetyltrimethyl-p-toluenesulfonium ammonium with 0.27g of tert-butyl methacrylate, 0.28g of n-butyl methacrylate, 0.33g of dimethyl Ethylene glycol acrylate, 59 mg of glucose pentaacetate and 25 mg of 4,4'-methylenebis(N,N-dimethylaniline) were dissolved in 1 ml of chloroform to obtain a mixed solution. After the solvent in the two mixed liquids was evaporated, the solid phase was obtained and dissolved in 100ml of chloroform solution containing 20% ​​Co(Salen)-OTS respectively. The solution containing sodium dodecylbenzenesulfonate and the solution containing cetyl The alkyl trimethyl ammonium p-toluenesulfonate solution was mixed and stirred at a volume ratio of 4, and reacted at 40°C under a nit...

Embodiment 3

[0042] Mix 1g of sodium dodecylbenzenesulfonate with 0.27g of tert-butyl methacrylate, 0.28g of n-butyl methacrylate, 0.33g of ethylene glycol dimethacrylate, 59mg of glucose pentaacetate and 20mg of peroxide Dissolve lauroyl in 1ml of chloroform to obtain a mixed solution; mix 1g of cetyltrimethyl-p-toluenesulfonium ammonium with 0.27g of tert-butyl methacrylate, 0.28g of n-butyl methacrylate, 0.33g of dimethyl Ethylene glycol acrylate, 59 mg of glucose pentaacetate and 25 mg of 4,4'-methylenebis(N,N-dimethylaniline) were dissolved in 1 ml of chloroform to obtain a mixed solution. After the solvent in the two mixed liquids was evaporated, the solid phase was obtained and then dissolved in 100ml of 30% Co(Salen)-OTS chloroform solution, and the solution containing sodium dodecylbenzenesulfonate and the solution containing cetyl The alkyl trimethyl ammonium p-toluenesulfonate solution was mixed and stirred at a volume ratio of 4, and reacted at 40°C under a nitrogen atmosphere....

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Abstract

The invention discloses a confined efficient M(salen) metal complex composite solid catalyst in a nanoreactor and application of the catalyst to preparing diol through hydration of an epoxy compound.A catalytic system can be marked as M(salen) / PN, wherein M is a metal ion and PN is a hollow high polymer. The loading capacity of M(salen) in a molecular sieve is 0.1% to 20%. A method has good operation convenience and repeatability, good catalytic performance is presented in reaction, recovery is easy and the catalyst can be used for industrial production.

Description

technical field [0001] The invention relates to a confined composite heterogeneous catalyst and its application in the reaction of epoxy compound hydration to diol. Background technique [0002] Ethylene glycol is a very important organic chemical raw material, mainly used in the production of polyester (resin, fiber and plastic) and as antifreeze and coolant. The direct hydration of ethylene oxide to ethylene glycol is the main technology for ethylene glycol production today. This technology requires the reaction to be carried out at 190-200°C, greater than 1.9MPa, and the molar ratio of water and ethylene oxide feed is 22-25:1. Its biggest disadvantage is the high energy consumption of subsequent water separation, and the energy consumption of producing 1 ton of ethylene glycol is as high as 6.1×10 9 Joule, the reaction efficiency is low, the residence time is longer than 25min, and the selectivity of ethylene glycol is only 88-91%. Introducing the catalyst into the rea...

Claims

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Application Information

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IPC IPC(8): B01J31/22C07C29/10C07C31/20C07C31/42C07C33/26C07C35/14
CPCC07C29/103C07C29/106B01J31/06B01J31/2217B01J2531/0252B01J2531/845B01J35/23B01J35/40C07C31/202C07C31/42C07C33/26C07C35/14C07C31/205Y02P20/584
Inventor 戈军伟何文军李骏
Owner CHINA PETROLEUM & CHEM CORP
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