Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Catalyst of load type bimetallic cyaniding complex, preparation method and application

A double metal cyanide and complex technology, applied in the field of preparation of supported double metal cyanide complex catalysts, can solve the problem of low catalytic activity, achieve the effect of increased catalyst activity and be conducive to industrial production

Active Publication Date: 2010-05-26
ZHEJIANG UNIV
View PDF15 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN 1044663A reports based on Zn 3 [Fe(CN) 6 ] 2 bimetallic catalyst, but the catalytic activity is relatively low (about 50g polymer / g catalyst)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Catalyst of load type bimetallic cyaniding complex, preparation method and application
  • Catalyst of load type bimetallic cyaniding complex, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 9g ZnCl 2 Dissolve in a mixed solution of deionized water (40mL) and tert-butanol (20mL), and stir until uniform and transparent. 0.76g K 3 [Co(CN) 6 ] was dissolved in 7 mL deionized water, and the K 3 [Co(CN) 6 ] Aqueous solution is dripped into above-mentioned ZnCl within 10 minutes 2 / water / tert-butanol solution, while adding 3.5 g of ethyl orthosilicate, and stirred at 30°C for 24 hours. Then suction filter, wash the filter cake three times with 200 mL of the mixed solution of water and tert-butanol, and then use pure tert-butanol to slurry at 30 ° C for 12 hours, after suction filtration, place it in a 60 ° C vacuum oven and dry to constant weight to obtain White solid 2.19g.

Embodiment 2

[0030] 10g ZnCl 2 Dissolve in a mixed solution of deionized water (40mL) and tert-butanol (25mL), and stir until uniform and transparent. 0.76g K 3 [Co(CN) 6 ] was dissolved in 7 mL deionized water, and K 3 [Co(CN) 6 ] aqueous solution in 10 minutes drop / into the above ZnCl 2 / water / tert-butanol solution, while adding 4.5 g of ethyl titanate, and stirred at 30°C for 24 hours. Then suction filter, wash the filter cake three times with 200 mL of the mixed solution of water and tert-butanol, and then use pure tert-butanol to slurry at 30 ° C for 12 hours, after suction filtration, place it in a 60 ° C vacuum oven and dry to constant weight to obtain White solid 2.56g.

Embodiment 3

[0032] 15g ZnCl 2 Dissolve in a mixed solution of deionized water (40mL) and tert-butanol (30mL), and stir until uniform and transparent. 1.0g K 2 Ni(CN) 4 Dissolve in 10mL deionized water, at 30°C this K 2 Ni(CN) 4 The aqueous solution was added dropwise to the above ZnCl within 10 minutes 2 / water / tert-butanol solution, while adding 5.0 g of ethyl orthosilicate, and stirred at 30°C for 24 hours. Then suction filter, wash the filter cake three times with 200 mL of the mixed solution of water and tert-butanol, and then use pure tert-butanol to slurry at 30 ° C for 12 hours, after suction filtration, place it in a 60 ° C vacuum oven and dry to constant weight to obtain SiO 2 The supported Ni-Zn bimetallic catalyst is 3.39g.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
degree of unsaturationaaaaaaaaaa
Login to View More

Abstract

This invention discloses a method for preparing double-metal cyanide complex supported catalyst and its application. The composition is : S-M11a[M(CN)BL1c].xM11X2.y1L2.y2L3.zH2O, wherein, S is the carrier, and is SiO2, TiO2 or their mixture; M11 is divalent metal ion; M is divalent, trivalent or valency-changeable metal ion; X is halogen anion or analog of halogen anion; L1 is high molecular or low molecular mono-tooth or double-tooth ligand of M; L2 is water-soluble alcohol or cyclic ether; L3 is water-soluble or alcohol-soluble compound, and can be high molecular or low molecular mono-toothor double-tooth ligand; a and b are positive integers; c is 0 or positive integer; x, y1, y2 and z are 0 or positive numbers. The catalyst is stable in air, and is insensitive to water vapor. The catalyst can be adequately utilized due to supporting, and can be easily removed from reaction products.

Description

technical field [0001] The invention relates to a supported double metal cyanide complex catalyst and its preparation method and application. It is specifically related to the preparation of polyether polyols with medium relative molecular weight and low degree of unsaturation for the ring-opening homopolymerization of epoxides and the high-efficiency, easy-to-remove supported bimetallic polycarbonates prepared by the copolymerization of epoxides and carbon dioxide. Preparation technology of cyanide complex catalyst. Background technique [0002] In the 1960s, the American General Tire Rubber Company first discovered that double metal cyanide complexes (DMC) can be used as efficient catalysts for the preparation of long-chain polyether polyols, and the resulting polyether polyols have low unsaturation (0.005-0.008mol / kg), narrow molecular weight distribution (M w / M n <1.2) and other advantages, its quality is obviously better than that of polyether prepared by KOH ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/10C08G65/26C08G64/00
Inventor 张兴宏陈上戚国荣
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com