Method for olefin hydroformylation reaction through adopting solid heterogeneous catalyst

A technology for olefin hydroformyl and heterogeneous catalysts, applied in the directions of carbon monoxide reaction preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of inability to meet industrialized production, complicated catalyst preparation process, poor catalyst stability, etc., Achieve the effect of solving the loss of metal components, broad industrial application prospects and stable performance

Active Publication Date: 2015-06-17
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although many innovative concepts have emerged in these catalytic systems, the loss of active metals in these systems is serious, or the stability of the catalyst is poor, or expensive organic ligands and solvents are used, or the preparation process of the catalyst is cumbersome. Complexity, etc., cannot meet the needs of industrial pr

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  • Method for olefin hydroformylation reaction through adopting solid heterogeneous catalyst
  • Method for olefin hydroformylation reaction through adopting solid heterogeneous catalyst
  • Method for olefin hydroformylation reaction through adopting solid heterogeneous catalyst

Examples

Experimental program
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Embodiment 1

[0055] Under 298K and a nitrogen gas protection atmosphere, 10.0 grams of tris (4-vinylphenyl) phosphine was dissolved in 100.0 ml of tetrahydrofuran solvent, and 1.0 grams of free radical initiator azobisisobutyronitrile was added to the above solution, and stirred for 2 hours . The stirred solution was allowed to stand at 373K under a nitrogen atmosphere for 24h. After the above-mentioned standing solution is cooled to room temperature, the solvent is vacuumed off at room temperature (about 298K), and the tris(4-vinylphenyl)ylphosphine is polymerized by solvothermal method to obtain a compound containing P ligand polymer. The three (4-vinylphenyl) phosphine ligand polymer carrier polymerization technical route in the present embodiment is as follows:

[0056]

[0057] Among them, the degree of polymerization n is 450-550, with a hierarchical pore structure including macropores, mesopores and micropores, and the measured BET specific surface area is 981m 2 / g, the pore ...

Embodiment 2

[0060] Refer to Example 1 for the synthesis of tris(4-vinylphenyl)phosphine ligand polymer carrier. Under 298K and a nitrogen gas protection atmosphere, take 0.5 mg of acetylacetonate dicarbonyl rhodium (I), join in a three-necked flask filled with 100.0 ml of tetrahydrofuran solvent, stir and dissolve, add 1.0 g of the above-mentioned preparation with a hierarchical porous structure The P-ligand-containing polymer, the mixture was stirred at 298K and nitrogen gas protection atmosphere for 24 hours, and then the solvent was vacuumed off at room temperature, and the self-supported P-ligand polymer with a hierarchical porous structure was obtained. Metallic Rh as solid heterogeneous catalysts. Add the solid heterogeneous catalyst of the metal Rh self-supported by the P ligand-containing polymer with a hierarchical porous structure prepared above into the fixed-bed reactor, and feed ethylene gas as the olefin raw material with a molar ratio of 1:2 and CO / H 2 Mixed gas (wherein ...

Embodiment 3

[0062] Refer to Example 1 for the synthesis of tris(4-vinylphenyl)phosphine ligand polymer carrier. Under 298K and a nitrogen gas protection atmosphere, get 12.53 mg of acetylacetonate dicarbonyl rhodium (I) and join in a three-necked flask filled with 100.0 ml of tetrahydrofuran solvent, stir and dissolve, add 1.0 g of the above-mentioned prepared rhodium with hierarchical pore structure P ligand-containing polymer, the mixture was stirred at 298K and a nitrogen gas protection atmosphere for 24 hours, and then the solvent was vacuumed off at room temperature to obtain a self-supported P-ligand polymer with a hierarchical pore structure. Solid heterogeneous catalysts for metallic Rh. Add the solid heterogeneous catalyst prepared above into a fixed-bed reactor, and feed propylene gas and CO / H 2 Mixed gas (wherein H 2 :CO volume ratio=1:1), at 393K, 1.0MPa, the olefin gas volume space velocity is 1000h -1 , CO / H 2 The volume space velocity of the mixed gas is 2000h -1 condi...

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Abstract

The invention relates to a method for an olefin hydroformylation reaction of olefin through adopting a solid heterogeneous catalyst. The method is characterized in that the method adopts the solid heterogeneous catalyst, the solid heterogeneous catalyst is composed of a metal component and an organic ligand polymer with a hierarchical pore structure, the metal component is one or more of Rh, Ir and Co, the organic ligand polymer is a polymer formed by polymerizing an organic ligand monomer containing P, an alkylene group and optional N, and the metal component and the P atom or N in the skeleton of the organic ligand polymer form a coordination bond and exist in a monoatomic dispersion state. The olefin hydroformylation reaction of an olefin raw material and a CO/H2 mixed gas is carried out in the presence of the solid heterogeneous catalyst in a reactor. The method adopting the novel solid heterogeneous catalyst has the advantages of simple reaction process and apparatus, stable hydroformylation performance of the catalyst, high activity and yield, and wide industrial application prospect.

Description

technical field [0001] The invention relates to a method for catalyzing olefin hydroformylation by using a novel solid heterogeneous catalyst, which belongs to the field of heterogeneous catalytic reaction technology. Background technique [0002] The hydroformylation reaction is olefin and synthesis gas (CO+H 2 ) reaction to prepare an aldehyde with one carbon higher than the raw material olefin. The reason why hydroformylation technology is widely used in the chemical industry and has become one of the most important technologies is mainly because its product aldehyde is a useful chemical intermediate, which can synthesize carboxylic acids and their corresponding esters, and Fatty amine, etc., the most important use is that it can be converted into alcohol by hydrogenation, and alcohol itself can be widely used in the field of fine chemical industry as organic solvent, plasticizer and surfactant. With the increasing demand for aldehydes and alcohols in industries such as...

Claims

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Application Information

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IPC IPC(8): C07C45/50C07C47/22C07C47/21B01J31/24
CPCB01J31/24B01J2531/822C07C45/505C07C47/02Y02P20/50
Inventor 丁云杰严丽姜淼林荣和
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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