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Catalyst for preparing diol by hydrating alkylene oxide, preparation method and uses thereof

A technology of alkylene oxide water and catalyst, which is applied in the field of high-performance alkylene oxide hydration to diol

Active Publication Date: 2020-02-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a kind of high, low water ratio and short reaction time all have high activity to the alkylene oxide hydration diol and do not need activation and promptly have the catalyst of good recyclability and preparation method thereof, to solve existing In the technology, the catalyst for the hydration of alkylene oxide to diol has the problems of high water ratio and good circulation that need to be activated

Method used

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  • Catalyst for preparing diol by hydrating alkylene oxide, preparation method and uses thereof
  • Catalyst for preparing diol by hydrating alkylene oxide, preparation method and uses thereof
  • Catalyst for preparing diol by hydrating alkylene oxide, preparation method and uses thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Weigh 0.50g of F127, 0.6g of mesitylene and 2.5g of KCl and dissolve them into 30mL 2M HCl aqueous solution at 16°C, and stir for 2h; add 2.08g of TEOS, continue to stir at 16°C for 24h, and place at 100 Heat water in an oven at ℃ for 24h. After being taken out, washed and dried, it was calcined at 550°C for 6 hours to obtain the nano-cage matrix material FDU-12. Weigh 0.331g of ferrocene hexafluorophosphoric acid and 0.492g of Co((1R,2R)-N,N′-disalicylidene-1,2-cyclohexanediamine), and dissolve in 15mL of dichloromethane In a mixed solution of 15mL acetonitrile, stir at room temperature for 12h, spin off the solvent, wash and dry thoroughly with n-hexane to obtain the active center Co((1R,2R)-N,N′-disalylidene-1, 2-cyclohexanediamine) PF 6 . Weigh 1.0g of FDU-12 and place it in 6mL containing 100mg Co((1R,2R)-N,N′-di-salicylidene-1,2-cyclohexanediamine)PF 6 In the dichloromethane solution, the mixture was sealed and stirred at 20°C for 2h, and then stirred at 20°C wit...

Embodiment 2

[0022] Weigh 1.0g of SBA-6 and place it in 6mL containing 100mg Fe((1R,2R)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cycloethanedi Amine) PF 6 In the dichloromethane solution, the mixture was sealed and stirred at 20°C for 2h, and then stirred at 20°C in the open until the solvent evaporated to dryness. Add pre-hydrolyzed methyl orthosilicate, stir for 40 minutes, add ethanol, centrifuge, wash thoroughly, and dry to obtain catalyst B.

Embodiment 3

[0024] Weigh 1.0g of SBA-16 and place it in 6mL containing 100mg Ga((1R,2R)-N,N'-di-salicylidene-1,2-cycloethylenediamine)PF 6 In the dichloromethane solution, the mixture was sealed and stirred at 20°C for 2h, and then stirred at 20°C in the open until the solvent evaporated to dryness. Add pre-hydrolyzed methyl orthosilicate, stir for 40 minutes, add ethanol, centrifuge, wash thoroughly, and dry to obtain catalyst C.

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PUM

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Abstract

The invention relates to a high-performance catalyst for preparing diol by hydrating alkylene oxide, a preparation method and uses thereof, wherein the catalyst is a nano-cage confinement catalyst, the expression of the catalyst is NC-[M(Salen)X], NC is a material with a nano-cage structure, M(Salen)X is an active center, M is a metal ion and specifically comprises Co<3+>, Fe<3+>, Ga<3+>, Al<3+> and Cr<3+>, Salen is a Shiff base derivative, and X is an axial anion and specifically comprises PF6<-> and BF4<->.

Description

Technical field [0001] The invention relates to a catalyst for preparing glycols by hydration of high-performance alkylene oxide, a preparation method and applications thereof. Background technique [0002] Ethylene glycol is an important organic chemical raw material and intermediate. It is mainly used in the production of polyester fiber, bottle resin, film, engineering plastics, antifreeze and coolant. It is also used in large quantities to produce plasticizers, desiccants, Lubricants and other raw materials for various chemical products are widely used (Guangdong Chemical Industry, 2011, 38:242). As of 2015, the global annual demand for ethylene glycol has reached more than 28 million tons (http: / / www.shell.com / business-customers / chemicals / factsheets-speeches-and-articles / factshe ets / mono-ethylene-glycol .html), especially the long-term self-sufficiency rate of ethylene glycol in my country is not more than 40.2% (http: / / www.chemsino.com / dailynews / newsview.aspx?id=499321&cata...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22C07C29/10C07C31/20
CPCB01J31/2243C07C29/106B01J2231/487B01J35/23C07C31/202
Inventor 杨为民陶桂菊金少青何文军
Owner CHINA PETROLEUM & CHEM CORP