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Catalyst for preparing diol by hydration of alkylene oxide, preparation method and application

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: 2021-05-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 hydration of alkylene oxide, preparation method and application
  • Catalyst for preparing diol by hydration of alkylene oxide, preparation method and application
  • Catalyst for preparing diol by hydration of alkylene oxide, preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020]The 0.50 g of F127, 0.6 g of average toluene and 2.5 g of KCl were dissolved to 30 ml of 2M HCl at 16 ° C, stirred for 2 h; add 2.08 g of TEOS, continued to stir at 16 ° C for 24 h after being placed in 100 Water heat in an oven at ° C for 24 h. After the washing was removed, the nano cage base material FDU-12 was obtained at 550 ° C. Weigh 0.331 g of ferrocette hexafluorophosphate and 0.492 g of CO ((1R, 2R) -N, N'-dihydrocholate-1,2-cyclohexamethylene), dissolved in 15 ml of dichloromethane In a mixed solution of 15 ml acetonitrile, the room temperature was stirred for 12 h, and the solvent was rotated, and the dried, and the activated center CO ((1R, 2R) -N, N'-di-two Ya Water Base -1 were well washed with n-hexane. 2-cyclohexamine) PF6. 1.0 g of FDU-12, placed in 6ml of 100 mg CO ((1R, 2R) -N, N'-dihydroelectric base-1,2-cyclohexameamine) PF6In the dichloromethane solution, the mixture was stirred at 20 ° C for 2 h, and the exposure of 20 ° C was stirred to the solvent vol...

Embodiment 2

[0022]Weigh 1.0 g of SBA-6, placed in 6ml containing 100 mg Fe ((1R, 2R) -N, N'-double (3,5-di-tert-butyl water, 2, 2-ring) Amine) PF6In the dichloromethane solution, the mixture was stirred at 20 ° C for 2 h, and the exposure of 20 ° C was stirred to the solvent volatile. After adding prehyd hydrolyzate, stirred for 40min, ethanol, centrifugation, sufficiently washed, dry to obtain catalyst B.

Embodiment 3

[0024]1.0 g of SBA-16 is weed, placed in 6 ml of 100 mg Ga ((1R, 2R) -N, N'-di-dihydroelectric base-1,2-cyclonedalamine) PF6In the dichloromethane solution, the mixture was stirred at 20 ° C for 2 h, and the exposure of 20 ° C was stirred to the solvent volatile. After adding prehyd hydrolyzate, stirred for 40 min, ethanol, centrifugation, sufficiently washed, and dry the catalyst C.

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Abstract

The invention relates to a high-performance catalyst for preparing diol by hydration of alkylene oxide, a preparation method and application thereof. The catalyst is a nanocage confined catalyst, the expression is: NC-[M(Salen)X], NC is a material with a nanocage structure; M(Salen)X active center, M is a metal ion, specifically including co 3+ , Fe 3+ , Ga 3+ , Al 3+ , Cr 3+ , Salen is a Shiff base derivative, X is an axis anion, specifically PF 6 ‑ , BF 4 ‑ .

Description

Technical field[0001]The present invention relates to a catalyst, preparation method, and application thereof for high performance epoxy alkane hydrated diol.Background technique[0002]Ethylene glycol is an important organic chemical raw material and intermediate, mainly used to produce polyester fibers, bottles of resins, films, engineering plastics, antifreeze and coolants, and a large number of production plasticizers, desiccants, The raw materials of various chemical products such as lubricants are very broad (Guangdong Chemical, 2011,38: 242). As of 2015, ethylene glycol's global demand is as high as 28 million tons (http: / / www.shell.com / business-customers / chemicals / facts-s-speeches-and-articles / factshe etcol ") / mono-ethylene-glycol .html), especially the self-sufficiency of ethylene glycol in my country is not more than 40.2% (http: / / www.chemsino.com / dailynews / newsview.aspx?id=499321&cataid=62). At present, ethylene glycol is mainly produced by direct water of ethylene oxide,...

Claims

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Application Information

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Patent Type & Authority Patents(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