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Homogeneous catalytic system for carbonyl synthesized butyraldehyde, and preparation and application of homogeneous catalytic system

A catalytic system, oxo synthesis technology, applied in the direction of carbon monoxide reaction preparation, organic compound/hydride/coordination complex catalyst, chemical instrument and method, etc., can solve the problems of large steric hindrance, reduce the output of butyraldehyde, etc., to achieve The effect of increasing device capacity, reducing raw material consumption, and improving utilization

Active Publication Date: 2014-08-27
SHANDONG HUALU HENGSHENG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] But because the steric hindrance is too large, the addition of a large amount of triphenylphosphine will inhibit the oxo synthesis reaction to a certain extent and reduce the output of butyraldehyde

Method used

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  • Homogeneous catalytic system for carbonyl synthesized butyraldehyde, and preparation and application of homogeneous catalytic system
  • Homogeneous catalytic system for carbonyl synthesized butyraldehyde, and preparation and application of homogeneous catalytic system
  • Homogeneous catalytic system for carbonyl synthesized butyraldehyde, and preparation and application of homogeneous catalytic system

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Experimental program
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Effect test

Embodiment 1

[0059] Replace the test system with nitrogen so that the oxygen content is lower than 0.2%, and then add 32.5kg of the prepared homogeneous catalytic system for oxo-synthesizing butyraldehyde into a 40L stainless steel reactor. During the configuration of the catalytic system, the quality of rhodium parka, triphenylphosphine, additive A (compound of formula A-1) and additive B is weighed in advance, and the configured n-isobutyraldehyde mixture is used in the catalytic system preparer. Stir and dissolve, and heat to 45°C, stir for 30 minutes, then move to the evaporator collection tank, then transfer the catalytic system return pump to the oxo reactor, and the remaining n-isobutyraldehyde is also returned through the evaporator collection tank through the catalytic system Pump into the oxo reactor. The weight composition of the catalytic system is n-butyraldehyde: 78.88%, isobutyraldehyde: 8.7%, triphenylphosphine: 7.7%, additive A (compound of formula A-1): 4.62%, additive B:...

Embodiment 2

[0065] Replace the test system with nitrogen so that the oxygen content is lower than 0.2%, and then add 33kg of the prepared homogeneous catalytic system for oxo-synthesizing butyraldehyde into a 40L stainless steel reactor. During the configuration of the catalytic system, the quality of rhodium parka, triphenylphosphine, additive A (compound of formula A-1) and additive B is weighed in advance, and the configured n-isobutyraldehyde mixture is used in the catalytic system preparer. Stir to dissolve, and heat to 45°C, stir for 30 minutes, then move to the evaporator collection tank, and then use the catalytic system return pump to move to the oxo synthesis reactor, and the remaining n-isobutyraldehyde is also returned through the evaporator collection tank through the catalytic system Pump into the oxo reactor. The weight composition is n-butyraldehyde: 78.1%, isobutyraldehyde: 8.1%, triphenylphosphine: 10.72%, additive A (compound of formula A-1): 1.55%, additive B: 1.53%, r...

Embodiment 3

[0070] Replace the test system with nitrogen so that the oxygen content is lower than 0.2%, and then add 33kg of the prepared homogeneous catalytic system for oxo-synthesizing butyraldehyde into a 40L stainless steel reactor. During the configuration of the catalytic system, the quality of rhodium parka, triphenylphosphine, additive A (compound of formula A-1) and additive B is weighed in advance, and the configured n-isobutyraldehyde mixture is used in the catalytic system preparer. Stir and dissolve, and heat to 45°C, stir for 30 minutes, then move to the evaporator collection tank, and then use the catalytic system return pump to move to the carbonylation reactor R01, and the remaining n-isobutyraldehyde also passes through the evaporator collection tank through the catalytic system The return pump is added to the oxo reactor. The weight composition is n-butyraldehyde: 73.29%, isobutyraldehyde: 7.5%, triphenylphosphine: 13.98%, additive A (compound of formula A-1): 2.36%, a...

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Abstract

The invention discloses a homogeneous catalytic system for carbonyl synthesized butyraldehyde, and preparation and application of the homogeneous catalytic system. The homogeneous catalytic system for the carbonyl synthesized butyraldehyde comprises a solvent, a catalysis active ingredient, a cocatalyst, an accessory ingredient A and an accessory ingredient B, wherein the solvent is butyraldehyde; the catalysis active ingredient is a rhodium salt; the cocatalyst is triphenylphosphine; the accessory ingredient A is a phosphine heterocyclic benzene ligand or the combination of the phosphine heterocyclic benzene ligands with the following structures shown as the accompanying drawing, wherein in the formula, R is trimethylsilyls, phenyls or tertiary butyls; and the accessory ingredient B is an azacyclo-carbene ligand with the following structure shown as the accompanying drawing, wherein Ar is 2,4,6-trimethylphenyl. The homogeneous catalytic system has the advantages that the stability under the high-temperature working condition is improved; the homogeneous catalytic system can be applicable to a wider application range; the production process can be favorably adjusted and optimized; in addition, the reaction selectivity is improved; the occurrence of side reactions is reduced; the utilization rate of raw materials is improved; and the raw material consumption of unit products is reduced.

Description

technical field [0001] The invention relates to a homogeneous catalyst system for carbonylation of butyraldehyde and its preparation and application. Background technique [0002] N-butyraldehyde and isobutyraldehyde are basic chemical raw materials. N-butyraldehyde is mainly used as an intermediate for resins, plastic plasticizers, vulcanization accelerators, pesticides, etc., and is also a raw material for the synthesis of butanol and octanol; isobutyraldehyde Butyraldehyde is the basic raw material for the synthesis of pantothenic acid, valine, leucine, cellulose ester, spices, plasticizers, resins and gasoline additives, and has a wide range of uses. [0003] At present, the oxo synthesis method is commonly used in the industrial production of butyraldehyde. DAVY / DOW (formerly Kvaerner / UCC) jointly developed the second-generation low-pressure rhodium carbonylation process-liquid phase circulation process. The catalyst used is a rhodium phosphine complex of the ligand tr...

Claims

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Application Information

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IPC IPC(8): B01J31/24B01J47/02C07C45/50
Inventor 常怀春包鹏飞李斌宋望一周霞李建兰冯志花曲敬芳武华友康永清
Owner SHANDONG HUALU HENGSHENG CHEM IND
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