P-methoxyphenol hydrogenation catalyst, preparation method of p-methoxyphenol hydrogenation catalyst and hydrogenation reaction

A technology of p-methoxyphenol and hydrogenation catalyst, which is applied in the hydrogenation preparation of aromatic hydroxyl compounds, carbon-based compound preparation, metal/metal oxide/metal hydroxide catalysts, etc., which can solve the problem of maintaining catalyst activity and selectivity and other problems, to achieve the effect of improving reactivity and selectivity, simple preparation, and high molar yield

Active Publication Date: 2016-03-23
SHENYANG RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to overcome the problem that the p-methoxyphenol hydrogenation catalyst in the prior art is difficult to maintain the stable activity and selectivity of the catalyst, and provides a p-methoxyphenol hydrogenation catalyst with high activity, good selectivity and long service life Its preparation method and hydrogenation reaction using the catalyst

Method used

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  • P-methoxyphenol hydrogenation catalyst, preparation method of p-methoxyphenol hydrogenation catalyst and hydrogenation reaction
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Examples

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Effect test

Embodiment 1

[0045] (1) Weigh 10.0g commercial activated carbon (200 mesh, specific surface area is 1200m 2 / g, the pore volume is 1.5cm 3 / g), add 20ml of 10wt% ammonia solution, stir at 40°C for 4h, filter, and wash with distilled water until neutral. The obtained activated carbon filter cake was transferred to 30ml of 20wt% nitric acid solution, stirred at 80°C for 5h, filtered, and washed with distilled water until neutral.

[0046] (2) Weigh 0.05g of lead nitrate, add 40ml of distilled water, stir, and make a solution, add the above-mentioned activated carbon that has been treated with ammonia water and nitric acid solution successively into the solution, soak for 5h at room temperature, filter, and place the filter cake in Dry in an oven at 110°C overnight, then sinter in a muffle furnace at 300°C for 4 hours, and cool to room temperature naturally.

[0047] (3) Weigh 0.5531gNa 2 [PdCl 4 ] and 0.0063 gAgNO 3 , add 20ml of distilled water to dissolve, then add 4.0g of the above-m...

Embodiment 2

[0049] Catalyst sample C2 was prepared by the same method steps as in Example 1, except that AgNO was not used in step (3). 3 While using an equimolar amount of Ni(NO 3 ) 2 .6H 2 O instead.

Embodiment 3

[0051] Catalyst sample C3 was prepared by the same method steps as in Example 1, except that AgNO was not used in step (3). 3 While using an equimolar amount of Co(NO 3 ) 2 .6H 2 O instead.

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Abstract

The invention relates to the field of catalysts, in particular to a p-methoxyphenol hydrogenation catalyst, a preparation method of the p-methoxyphenol hydrogenation catalyst and a hydrogenation reaction. The p-methoxyphenol hydrogenation catalyst comprises carriers and active components which adhere to the carriers, wherein the active components comprise components A and components B , the components A are precious metals, and the components B are selected from one or more of ferrum (Fe), cobalt (Co), nickel (Ni), silver (Ag) and rhenium (Re). The p-methoxyphenol hydrogenation catalyst is high in activity, excellent in selectivity and long in service life.

Description

technical field [0001] The invention relates to the field of catalysts, in particular to a p-methoxyphenol hydrogenation catalyst, a preparation method thereof and a hydrogenation reaction using the catalyst. Background technique [0002] P-methoxycyclohexanone is an important intermediate for the synthesis of the pesticide spirotetramat. Spirotetramat is a teternary acid compound, which was discovered by Bayer in the process of screening herbicides. It has unique action characteristics and is the only modern insecticide with two-way systemic conduction performance. It has broad application prospects and is now available abroad. Vigorously develop and use such pesticides. However, the complete production process of this insecticide has not been developed in China at this stage, so it is very necessary to vigorously develop and explore its synthetic process route. As an indispensable intermediate in the synthetic route of spirotetramat, p-methoxycyclohexanone, it is also ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/50B01J23/89C07C49/517C07C45/00
CPCB01J23/50B01J23/8913B01J23/892B01J2523/18B01J2523/824B01J2523/845B01J2523/847C07C45/006C07C49/517
Inventor 闫海生尹荃龚亚军丛麟权喻滔
Owner SHENYANG RES INST OF CHEM IND
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