High-performance catalyst for preparing diol by hydrating epoxyalkane, preparation method and application

A technology of alkylene oxide water and catalyst, which is applied in the field of high-performance catalyst, preparation and application of alkylene oxide hydration to diol, can solve the problems of high water ratio and poor stability, and solve the problems of high water ratio and poor stability , excellent recycling effect

Pending Publication Date: 2021-07-23
CHINA PETROLEUM & CHEM CORP +1
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AI-Extracted Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a catalyst with high activity and stability for the hydration of alkylene oxide to diol under high and low water ratios and a preparati...
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Abstract

The invention relates to a high-performance catalyst for preparing diol by hydrating epoxyalkane, a preparation method and application of the catalyst. The catalyst is a polymer catalyst, and the polymer is prepared by polymerizing diamine with at least one monomer selected from 1,3,5-tri(3-formyl-4-hydroxyphenyl)benzene or substituted 1,3,5-tri(3-formyl-4-hydroxyphenyl)benzene and then conducting reacting with a metal salt. The catalyst has high activity and stability for preparing the diol by hydrating the epoxyalkane under high and low water ratios, and has excellent recyclability without activation, so that the problems of high required water ratio and poor stability of the catalyst for preparing the diol by hydrating the epoxyalkane in the prior art are solved.

Application Domain

Organic compound preparationOrganic-compounds/hydrides/coordination-complexes catalysts +1

Technology Topic

DiamineBenzene +11

Image

  • High-performance catalyst for preparing diol by hydrating epoxyalkane, preparation method and application
  • High-performance catalyst for preparing diol by hydrating epoxyalkane, preparation method and application
  • High-performance catalyst for preparing diol by hydrating epoxyalkane, preparation method and application

Examples

  • Experimental program(12)
  • Comparison scheme(4)

Example Embodiment

[0030] Example 1】
[0031] 6Mmol 1,3,5-three (3-formyl-4-hydroxyphenyl) benzene is soluble in CH 2 CL2 In the middle, the methanol solution containing 9 mmol ethylenediamine is dripped, and the separation is separated after 60 ° C for 1 h, and the methanol is sufficiently washed and dried; the obtained polymer is again dispersed to CH 2 CL 2 Medium N 2 Add 9 mmol Co (OAC) with stirring 2 The methanol solution, the reaction is separated after 10 h, CH 2 CL 2 And the methanol solution is thoroughly washed and dried; then the resulting product is dispersed in CH 2 CL 2 In the middle, stirring with a 9 mmol hexafluorophosphate atrium iron 2 CL 2 After the solution, the open was stirred for 10 h, isolated, thoroughly washed, dried to the catalyst A.

Example Embodiment

[0032] [Example 2]
[0033] 6 mmol of 1,3,5-tris (3-formyl-4-hydroxy-5 tert-butylphenylphenyl) benzene is soluble in CH 2 CL 2 In the middle, the ethanol solution containing 9 mmol of cyclohexamethylene is dried, and the separation is performed after 80 ° C for 1 h, and the ethanol is thoroughly washed and dried; the resulting polymer is again dispersed to CH 2 CL 2 In the addition of 9mmol RH (CL) 3 Water / ethanol solution, after 10 h, Chromatography, CH 2 CL 2 And water / ethanol is thoroughly washed and dried; then the resulting product is dispersed in CH 2 CL 2 In the mixing, the silver-containing CH is added to silver boricrate. 2 CL 2 The solution, the reaction was separated, thoroughly washed, and the catalyst B was dried.

Example Embodiment

[0034] [Example 3]
[0035] 3, 3,5- Trim (3-formyl-4-hydroxyphenyl) benzene and 4 mmol of 1,3,5-tenth (3-formyl-4-hydroxy-5 tert-butylphenyl) ) Benzein in CH 2 CL 2 The ethanol solution containing 2 mmol ethylenediamine, 3 mmol cyclohexameamine and 4 mMol phenylene, and separated after 80 ° C for 1 h, and dried over 80 ° C. The obtained polymer is then dispersed to CH. 2 CL 2 Medium N 2 Add 7 mmol Co (OAC) with stirring 2 And 2mmol RH (CL) 3 The methanol solution, the reaction is separated after 10 h, CH 2 CL 2 Wash with methanol and dry; then the resulting product is dispersed in CH 2 CL 2 In the mixing, the mixture is added to silver and 4 mmol tetrafluororate silver. 2 CL 2 The solution, the reaction was separated, fully washed well, dry the catalyst C.
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Description & Claims & Application Information

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