Preparing method of micro-reactor used for water/organic hydrogenation

A technology of microreactor and hydrogenation reaction, applied in chemical instruments and methods, chemical/physical/physicochemical processes, chemical/physical processes, etc., can solve the problems of insignificant increase in reaction speed, harsh ligand preparation conditions, The problem of lipophilic microenvironment is not large, and the effect of fast water/organic hydrogenation reaction, easy separation and simple preparation method is achieved

Inactive Publication Date: 2011-06-29
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

However, since the lipophilic microenvironment formed by the ligand in water is not large, the increase in the reaction rate is not obvious
Moreover, the preparation conditions of the ligand are relatively harsh, and it is difficult to be used on a large scale

Method used

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  • Preparing method of micro-reactor used for water/organic hydrogenation
  • Preparing method of micro-reactor used for water/organic hydrogenation
  • Preparing method of micro-reactor used for water/organic hydrogenation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Catalyst Preparation and Hydrogenation

[0022] Add 0.11g of PVP with an average molecular weight of 1,250,000 and 0.0025g of ruthenium chloride to 60ml of water. After complexation at 353K for 2h, the aqueous solution was poured into a 500ml reactor, sealed and reduced under a hydrogen atmosphere of 353K and 4M Pa for 2h.

[0023] After the hydrogen was released, 30ml of benzene and 60ml of undecane were poured into the reactor. The hydrogenation reaction of benzene was carried out under the conditions of reaction temperature of 353K, hydrogen pressure of 4MPa and stirring rate of 1000 rpm. The reaction results are shown in Table 1.

Embodiment 2

[0025] Catalyst Preparation and Hydrogenation

[0026] Except for using PVP with an average molecular weight of 70,000, the other preparation methods are exactly the same as in Example 1.

[0027] Except for different catalysts, other benzene hydrogenation conditions are exactly the same as those in Example 1. The reaction results are shown in Table 1.

Embodiment 3

[0029] Catalyst Preparation and Hydrogenation

[0030] Except for using PVP with an average molecular weight of 4000, the other preparation methods are exactly the same as in Example 1.

[0031] Except for different catalysts, other benzene hydrogenation conditions are exactly the same as those in Example 1. The reaction results are shown in Table 1.

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Abstract

A microreactor for the high-speed hydroreaction of water / organic substrate is composed of polyvinyl pyrrolidone (PVP) and Ru nanoparticles as hydrocatalyst. Its preparing process includes such steps as dissolving PVP and ruthenium chloride in water, complexing at 353 deg.K for 2hr, and reducing in H2 at 353 deg.K under 4MPa for 2hr.

Description

technical field [0001] The present invention relates to a microreactor, its preparation method and application, in particular to a microreactor for rapid water / organic hydrogenation reaction, its preparation method and application. Background technique [0002] The water / organocatalytic system is to fix the water-soluble catalyst in the water phase that is immiscible with the organic substrate. After the reaction is completed, the automatic stratification of the catalyst and the product can be realized, which is convenient for continuous operation and the recovery and recycling of the catalyst. , which has attracted widespread attention. Water-soluble rhodium-based catalysts have been industrialized in Germany and South Korea for the hydroformylation of propylene with an annual output of 600,000 tons. However, when the water / organic two-phase catalytic system was extended to organic substrates with low solubility in water, the reaction rate was greatly slowed down, and even...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00
Inventor 徐杰路芳刘菁宁剑波
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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