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A kind of preparation method of hydroformylation solid catalyst, catalyst and application

A technology for hydroformylation of solid and solid catalysts, which can be used in the preparation of carbon monoxide reaction, organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, etc., and can solve problems such as inability to combine polymers and porous materials. , to achieve the effect of high pore volume, strong controllability and few process steps

Inactive Publication Date: 2017-12-05
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Our method has a simple preparation process and adjustable composition, which solves the problem that traditional supports cannot combine polymers and porous materials, and provides a new type of excellent support for hydroformylation reactions

Method used

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  • A kind of preparation method of hydroformylation solid catalyst, catalyst and application
  • A kind of preparation method of hydroformylation solid catalyst, catalyst and application
  • A kind of preparation method of hydroformylation solid catalyst, catalyst and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] At room temperature, 144 mg of the synthesized 4-vinyltriphenylphosphine monomer, 21 mg of the cross-linking agent divinylbenzene, and the initiator AIBN (3% of the mass of the phosphine ligand containing double bonds) were dissolved in 2 ml of dichloromethane , into 1.0 g of porous material FDU-12 by impregnation. Freeze after removing the air. The polymerization reaction was heated at 80°C for 20h. After the reaction, it was repeatedly washed with dichloromethane, ethanol and ether, and dried to obtain a solid composite material. TEM results showed that ( figure 1 , figure 2 ), the hybrid material still maintains the original channel structure, and no polymer appears at the edge. Nitrogen adsorption ( image 3 ) results show that its BET specific surface and pore volume can reach 543m 2 / g and 0.54cm 3 / g.

[0034] Metal complex: 1.0 g of material, add metal salt rhodium dicarbonyl acetylacetonate according to the molar amount of P / Rh=1-40, then add 3.0 ml of...

Embodiment 2

[0035] The preparation process of Example 1 is adopted, except that the porous silicon oxide material used is SBA-15. The XRD results of the prepared porous material and polymer@SBA-15 hybrid material are as follows Figure 5, the results show that the pore structure of the hybrid material has not changed.

Embodiment 3

[0037] The preparation process of Example 1 is adopted, except that the porous silicon oxide material used is MCM-41 pellet material. The TEM and SEM results of the prepared porous materials and hybrid materials are as follows Figure 6 , shown in 7. There is no polymer at the edge of the bead, which fully shows that most of the polymer is polymerized in the channel.

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Abstract

The invention relates to the preparation and application of a rhodium-triphenylphosphine functionalized polymer@porous material composite catalyst suitable for various olefin hydroformylation reactions. The catalyst is obtained by the following method: taking synthetic porous silicon oxide or porous carbon as the main material, introducing the polymerization monomer and initiator into the pores of the porous material by means of impregnation, and making the phosphine ligand in the porous material under heating conditions Aggregate growth. After coordination with metal Rh salts, a polymer@porous material composite catalyst with excellent catalytic performance is obtained, which has high specific surface area, large pore volume and high polymer dispersion. The method for preparing the catalyst of the invention is simple and effective, has strong controllability and practicability, and is suitable for large-scale production and application. The obtained composite catalysts showed good catalytic performance in the hydroformylation of various olefins.

Description

technical field [0001] The invention belongs to the field of preparation methods of immobilized metal complex catalysts. Specifically relates to the preparation of a rhodium-phosphine metal complex functionalized polymer@porous material composite catalyst suitable for olefin hydroformylation reaction. Background technique [0002] Hydroformylation reaction is the most important organometallic catalyzed reaction in the field of industrial production, and it is also one of the most active research directions in the field of oxo synthesis. The raw materials for this reaction are cheap and easy to obtain, and can add one carbon to the olefin carbon chain to form aldehydes under less harsh conditions. The product aldehyde can be further transformed to form alcohol, ester or acid, etc., which can be used to produce a variety of surfactants, food additives, fragrances and other chemicals. [0003] At present, the catalysts that have been studied more are mainly Co or Rh-based met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/06B01J35/10C07C45/50C07C47/02
Inventor 杨启华张晓明赵耀鹏
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI