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

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.]....