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Cu-VSB 5 catalyst for hydroxylation of phenol, and preparation method

A technology of phenol hydroxylation and VSB-5, which is applied in the preparation of organic compounds, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the difficult separation of catalysts to achieve reuse, hinder the application of industrialization, and the output is not very high, etc. problem, to achieve the effect of low raw material cost, easy recycling, and simple preparation method

Inactive Publication Date: 2007-05-09
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these processes often have a large number of by-products, so the yield is not very high: In addition, these catalysts are difficult to separate in the reaction system to achieve the purpose of reuse
Although some transition metal-containing zeolite molecular sieves also have high activity for the hydroxylation of phenol, their complex synthesis steps and high cost seriously hinder their industrial application.

Method used

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  • Cu-VSB 5 catalyst for hydroxylation of phenol, and preparation method
  • Cu-VSB 5 catalyst for hydroxylation of phenol, and preparation method
  • Cu-VSB 5 catalyst for hydroxylation of phenol, and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Prepare 0.2 mol / L copper nitrate solution, then add VSB-5 powder, stir at room temperature for 6 hours, then wash repeatedly with deionized water and dry. Activate the dried powder by firing at 350°C for 3 hours to obtain 0.2Cu-VSB-5 powder

[0029] Weigh 0.094g of phenol and add it to a round bottom flask filled with 30ml of water. The mixture is heated to 60°C under stirring, and then 0.094g0.2Cu-VSB-5 is added. Samples were taken every half hour for quantitative analysis. When the reaction time was 3 hours, the conversion rate of phenol in the solution was 47.7%.

Embodiment 2

[0031] The copper nitrate solution of preparation 0.05 mol / liter, all the other steps are with embodiment 1.

[0032] Weigh 0.094g of phenol and add it to a 30ml round bottom flask. The mixture is heated to 60°C under stirring, and then 0.094g0.05Cu-VSB-5 is added. Samples were taken every half hour for quantitative analysis. When the reaction time was 3 hours, the conversion rate of phenol in the solution was 46.1%.

Embodiment 3

[0034] The copper nitrate solution of preparation 0.01 mol / liter, all the other steps are with embodiment 1.

[0035] Weigh 0.094g of phenol and add it to a round-bottomed flask filled with 30ml of water. The mixture is heated to 60°C with stirring, and then 0.094g0.01Cu-VSB-5 is added. Samples were taken every half hour for quantitative analysis. When the reaction time was 3 hours, the conversion rate of phenol in the solution was 44.5%.

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Abstract

A catalyst Cu-VSB-5 for hydroxylating phenol in water to become O-phenol and p-phenol is composed of the millipore nickel phosphate material VSB-5 as carrier and Cu as active center. Its preparing process features that the Cu is led into the arteries of carrier by ion exchange.

Description

technical field [0001] The invention relates to a Cu-VSB-5 catalyst capable of hydroxylating phenol and a preparation method thereof, belonging to the field of catalyst materials. Background technique [0002] With the development of industry, people pay more and more attention to their living environment. Therefore, the development of eco-friendly technology is a current research hotspot. Especially in the oxidation of some organic matter, it is urgent to find a pollution-free and clean oxidizing agent. Hydrogen peroxide has only by-product water when it is used as an oxidizing agent, so it is considered a clean oxidizing agent. The oxidation of phenol to ortho- and para-phenols is an important industrial reaction (CPerego, A. Carati, P Ingallina, M.A. Mantegazza, G Bellussi, Appl. Catal. A221 (2001) 63.). These two products are widely used as raw materials for spices, medicines, and other fine chemical products. In industry, some soluble metal salts and some inorganic a...

Claims

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Application Information

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IPC IPC(8): B01J27/185C07C39/08C07C37/60
CPCY02P20/52
Inventor 高秋明姜义军
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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