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Hydrogenation catalyst, preparation method thereof and application thereof to preparation of 10-hydroxydecanoate

A technology of hydrogenation catalyst and hydroxydecanoic acid, which is applied in the field of fine chemical industry and catalyst technology, can solve the problems of complex preparation method and difficult control of the preparation process, and achieve the effects of simple preparation method, reduced internal diffusion resistance and easy recovery

Active Publication Date: 2015-04-15
恒光新材料(江苏)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the disadvantages that the second component rhenium or molybdenum in the ruthenium-based two-component catalyst uses the corresponding carbonyl complex as the precursor, the preparation method is complicated, and the preparation process is not easy to control, the present invention provides a hydrogenation catalyst and The Reaction Technology of Sebacic Acid Liquid Phase Catalytic Hydrogenation to 10-Hydroxydecanoic Acid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In a stirred autoclave, add 10%Ru-2%Sn / mesoporous carbon catalyst (mesoporous carbon is pre-treated with 0.5M sodium hypochlorite) 0.025g, sebacic acid 0.5g, distilled water 20ml, LiOH 0.01g, close Reactor, replace the air in the reactor with nitrogen three times, then replace the nitrogen in the reactor with hydrogen three times, then fill in hydrogen to make the reaction pressure of the reactor reach 3.0MPa, heat the reactor to make the reaction temperature reach 240°C, start Stir and react at constant temperature until the pressure no longer drops, take out the reaction product, filter to remove the catalyst, and analyze by liquid chromatography. The analysis results are listed in Table 1.

Embodiment 2

[0026] In a stirred autoclave, add 0.1g of 8%Ru-3%Sn / mesoporous carbon catalyst (mesoporous carbon has been treated with 0.1M sodium hypochlorite in advance), 0.5g of sebacic acid, 50ml of distilled water, 0.05g of NaOH, and close Reactor, replace the air in the reactor with nitrogen three times, then replace the nitrogen in the reactor with hydrogen three times, then fill in hydrogen to make the reaction pressure of the reactor reach 5.0MPa, heat the reactor to make the reaction temperature reach 230 ° C, start Stir and react at constant temperature until the pressure no longer drops, take out the reaction product, filter to remove the catalyst, and analyze by liquid chromatography. The analysis results are listed in Table 1.

Embodiment 3

[0028] In a stirred autoclave, add 0.05g of 5%Ru-6%Sn / mesoporous carbon catalyst (mesoporous carbon is treated with 1M sodium hypochlorite in advance), 0.5g of sebacic acid, 50ml of distilled water, 0.075g of KOH, and close the reaction Reactor, replace the air in the reactor with nitrogen for three times, then replace the nitrogen in the reactor with hydrogen for three times, then fill in hydrogen to make the reaction pressure of the reactor reach 8.0MPa, heat the reactor to make the reaction temperature reach 230°C, and start stirring , react at constant temperature until the pressure no longer drops, take out the reaction product, remove the catalyst by filtration, and analyze by liquid chromatography. The analysis results are listed in Table 1.

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PUM

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Abstract

The invention relates to the fields of catalyst technologies and fine chemical engineering, and in particular relates to a hydrogenation catalyst. The catalyst comprises a carrier and active components, wherein the carrier is mesoporous carbon pretreated by a sodium hypochlorite solution; and the active components comprise metal ruthenium and metal tin. A preparation method of the hydrogenation catalyst comprises the following steps of: soaking the mesoporous carbon in the sodium hypochlorite solution, washing the soaked mesoporous carbon by distilled water, and then filtering the washed mesoporous carbon; and soaking the carrier, namely the mesoporous carbon, by a salty solution containing the metal ruthenium and the metal tin, then washing the soaked carrier by distilled water, and performing suction filtration on the washed carrier. The invention also discloses application of the hydrogenation catalyst to preparation of 10-hydroxydecanoate. The hydrogenation catalyst has the advantages that the catalyst carrier adopts the mesoporous carbon, and compared with active carbon, the mesoporous carbon enables the target product yield to be obviously improved; compared with a catalyst with an inorganic oxide carrier, the catalyst has the advantage that the active components, namely the ruthenium and the thin, in the waste catalyst are easy to recycle; due to proper passageways, the inner diffusion resistance can be reduced, and the reaction rate is improved; by pretreatment of the sodium hypochlorite, the activity of the catalyst is obviously improved; and the hydrogenation catalyst has great industrial prospect.

Description

technical field [0001] The invention relates to the field of catalyst technology and fine chemical industry, in particular to a hydrogenation catalyst. Background technique [0002] 10-Hydroxydecanoic acid is an important raw material and intermediate in cosmetics, pharmaceutical products and health care products, and can be directly added to cosmetics as a sebum secretion inhibitor [Li Yu, Li Shanji, Lin Chunxiao, Huang Li. Study on rapid synthesis of 10-hydroxydecanoic acid by microwave-catalyzed one-pot method[J]. China Brewing, 2008(1): 47~48.]. In addition, 10-hydroxydecanoic acid is also a high-efficiency antioxidant and an important raw material for preparing royal acid, an active ingredient in royal jelly, which is antibacterial, anticancer and antiradiation [Zhang Mingyue, Gao Hong, Wang Jinfeng, Chen Yanru, Chen Xubin. Study on the Static Adsorption Properties of 10-Hydroxydecanoic Acid by Macroporous Resin[J]. Guangdong Chemical Industry, 2010, 37(11): 28~29.]....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/62C07C51/367C07C59/01
CPCY02P20/584
Inventor 李明时郭祥祥施阳鲁墨弘张伟单玉华
Owner 恒光新材料(江苏)股份有限公司
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