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Olefin hydroformylation catalyst

A technology of olefin hydroformylation catalyst and rhodium catalyst, which is applied in the direction of physical/chemical process catalyst, organic compound/hydride/coordination complex catalyst, organic chemistry, etc., and can solve the problem of low reaction activity, poor stability, positive and negative to achieve high catalytic activity, prolong service life, reduce separation energy consumption and achieve the effects of low specific ratio

Active Publication Date: 2014-08-20
SHANGHAI HUAYI GRP CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that in the prior art, the reactivity of the rhodium catalyst based on the phosphine ligand is low, the positive-isotropic ratio in the product is low, and the stability of the rhodium catalyst is poor with the phosphite ligand. A kind of New Catalysts for Olefin Hydroformylation

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0048] Add rhodium(I)[Rh(acac)(CO) dicarbonyl acetylacetone to a 200mL stainless steel autoclave equipped with a pressure gauge under air atmosphere 2 ] (0.01mmol, 2.5mg, the concentration is 103mg / L) and 0.04mmol of 1,4-bis(diphenylphosphine)butane L4 bidentate phosphine ligand and 0.04mmol of L15 bidentate phosphite ligand, And 70mL of anhydrous toluene, connect the gas pipeline, replace the gas in the kettle with nitrogen three times, introduce 15g of propylene, heat up to the temperature of the reaction kettle to 100 ° C, stir with an electromagnetically driven mechanical stirrer, and feed hydrogen and carbon monoxide (volume Ratio 1:1) mixed gas to a total pressure of 2MPa, and maintain the reaction pressure at 2MPa, measure the carbon monoxide and hydrogen consumed by the reaction with a mass flow meter, and stop feeding the mixed gas of hydrogen and carbon monoxide after 1 hour of reaction. Reaction kettle is cooled with ice water, vents residual gas in fume hood, weigh...

Embodiment 2

[0050] Add [Rh(acac)(CO) to a 200mL stainless steel autoclave equipped with a pressure gauge under air atmosphere 2 ] (0.01mmol, 2.5mg, 103mg / L) and 0.04mmol of the L5 bidentate phosphine ligand and 0.04mmol of the L13 bidentate phosphite ligand, and 70mL of anhydrous toluene, connect the gas line, and replace the kettle with nitrogen After gas three times, introduce 15g of propylene, heat up to the inner temperature of the reactor to 100°C, stir with an electromagnetically driven mechanical stirrer, and introduce a mixture of hydrogen and carbon monoxide (volume ratio 1:1) to a total pressure of 2MPa, and maintain The reaction pressure is at 2 MPa, and the carbon monoxide and hydrogen consumed by the reaction are measured with a mass flow meter. After 1 hour of reaction, the mixed gas of hydrogen and carbon monoxide is stopped. Reactor is cooled with ice water, vents residual gas in fume hood, weighs, open still, and sampling is measured positive isotropic ratio (the mol rati...

Embodiment 3

[0052] Add [Rh(acac)(CO) to a 200mL stainless steel autoclave equipped with a pressure gauge under air atmosphere 2 ] (0.01mmol, 2.5mg, 103mg / L) and 0.04mmol of the L3 bidentate phosphine ligand and 0.04mmol of the L15 bidentate phosphite ligand, and 70mL of anhydrous toluene, connect the gas line, and replace the kettle with nitrogen After gas three times, introduce 15g of propylene, heat up to the inner temperature of the reactor to 100°C, stir with an electromagnetically driven mechanical stirrer, and introduce a mixture of hydrogen and carbon monoxide (volume ratio 1:1) to a total pressure of 2MPa, and maintain The reaction pressure is at 2 MPa, and the carbon monoxide and hydrogen consumed by the reaction are measured with a mass flow meter. After 1 hour of reaction, the mixed gas of hydrogen and carbon monoxide is stopped. Reactor is cooled with ice water, vents residual gas in fume hood, weighs, open still, and gas chromatography (GC) is used for sampling to measure pos...

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Abstract

The invention relates to an olefin hydroformylation catalyst. The problems of low reaction activity, low normal-to-iso ratio in products, and poor stability of phosphine ligand based rhodium catalysts in the prior art are solved. The olefin hydroformylation catalyst comprising a rhodium-containing catalyst precursor, a bidentate phosphine ligand and a bidentate phosphite ligand well solves the problems, and can be used in olefin hydroformylation reactions.

Description

technical field [0001] The invention relates to an olefin hydroformylation catalyst. Background technique [0002] Olefin hydroformylation can conveniently and effectively convert cheap and easy-to-obtain basic chemical raw materials, such as olefins, into aldehydes and other important chemical and chemical products. It is the largest homogeneous catalytic process so far. Industrially, the hydroformylation reaction of olefins is mainly catalyzed by various coordination complexes of two metals, Co and Rh, but the rhodium-based catalytic activity is 10 times higher than that of cobalt. 2 ~10 3 Since the 1970s, rhodium catalysts modified with phosphorus-containing ligands have dominated the research on the hydroformylation of olefins due to their outstanding advantages such as high activity, excellent selectivity, and mild reaction conditions. And gradually replace cobalt as a catalyst in the industrial hydroformylation process. Among them, the composition and structure of p...

Claims

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Application Information

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IPC IPC(8): B01J31/24C07C47/02C07C45/50
Inventor 龚磊赖春波范曼曼廖本仁陈毅立
Owner SHANGHAI HUAYI GRP CO
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