Cooper base catalyst and preparation method thereof

A copper-based catalyst and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic chemistry, etc., can solve problems such as single component and poor reaction stability

Inactive Publication Date: 2013-09-25
INST OF PROCESS ENG CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention proposes a composite copper-based catalyst for the first time. The catalyst solves the shortcomings of the existing cuprous chloride catalyst system with single components and poor reaction stability, and makes full use of copper powder or its Oxide or the advantages of each component of the mixture formed by copper powder and copper oxide, introduce a new copper source of copper chloride, after mixing or mixing grinding, a new type of copper-based catalyst is obtained

Method used

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  • Cooper base catalyst and preparation method thereof
  • Cooper base catalyst and preparation method thereof
  • Cooper base catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Weigh 0.87g of metal copper powder, 5.44g of cuprous chloride, 3.69g of anhydrous cupric chloride and 0.4g of brass powder as the reaction raw materials, and mix well to obtain Cu-CuCl-CuCl 2Novel copper-based catalyst; the composition of the resulting novel copper-based catalyst is 8.7% Cu, 54.4% CuCl and 36.9% CuCl 2 .

[0069] The prepared catalyst material was subjected to XRD test on an X'PertPRO MPD multifunctional X-ray diffractometer produced by Panalytical Company (Panalytical) in the Netherlands.

[0070] figure 1 It is the XRD figure of the copper-based catalyst that embodiment 1 obtains, wherein 2θ=28.6 ° is the characteristic peak of CuCl, 2θ=30.8 ° and 2θ=38.1 ° are CuCl 2 The characteristic peaks of 2θ=43.3° and 2θ=50.4° are the characteristic peaks of Cu. It can be seen that the copper-based catalyst prepared by this method is composed of Cu, CuCl and CuCl 2 composition.

Embodiment 2

[0072] Weigh 1.02g of metal copper powder, 2.57g of copper oxide, 6.41g of cuprous chloride and 0.40g of brass powder as the reaction raw materials, mix them evenly, and dry ball mill them in a stirring ball mill for 4 hours; after separation, drying and sieving, A Cu-CuCl-CuO type copper-based catalyst is obtained; the composition of the obtained copper catalyst is: 10.2% Cu, 64.1% CuCl and 25.7% CuO.

[0073] figure 2 For the XRD pattern of the copper-based catalyst obtained in Example 2, wherein 2θ=28.6° is the characteristic peak of CuCl, the shoulder peak composed of 2θ=35.5° and 2θ=38.8° is the characteristic peak of CuO, 2θ=43.3° and 2θ =50.4° is the characteristic peak of Cu, thus it can be seen that the copper-based catalyst prepared by this method is composed of Cu, CuCl and CuO.

Embodiment 3

[0075] Weigh a commercial CuO 0.52 Catalyst 8.00g and cuprous chloride 2.00g are reaction raw materials, carry out thorough mixing on sand mill, obtain Cu-Cu 2 O-CuO-CuCl new copper-based catalyst; the obtained copper catalyst formula is Cu-Cu 2 The composition distribution of O-CuO composition and CuCl is: 80% and 20%, respectively.

[0076] image 3 It is the XRD figure of the copper-based catalyst that embodiment 3 obtains, and wherein 2θ=28.6 ° is the characteristic peak of CuCl, and 2θ=36.5 ° is Cu 2 The characteristic peak of O, the shoulder peak that is made up of 2θ=35.5 ° and 2θ=38.8 ° is the characteristic peak of CuO, 2θ=43.3 ° is the characteristic peak of Cu, thus it can be seen that the copper-based catalyst prepared by this method is composed of Cu, Cu 2 O and CuO composition together with CuCl.

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Abstract

The present invention relates to a copper base catalyst, which comprises a catalyst main body and a co-catalyst, wherein the catalyst main body comprises copper powder and/or a copper powder oxide, cuprous chloride and copper chloride. The copper base catalyst preparation method comprises: adopting a formula amount of copper powder and/or a copper powder oxide, cuprous chloride, copper chloride and a co-catalyst as raw materials, and carrying out mixing or mixing grinding. According to the present invention, the cooper base catalyst has high selectivity and a high conversion rate in the field of organic silicon monomer synthesis, the preparation method has characteristics of simple operation and simple process, and large-scale production is easily achieved.

Description

technical field [0001] The invention relates to a copper-based catalyst, in particular to a copper catalyst for organosilicon monomer synthesis and a preparation method thereof, which can be used to promote the selective synthesis of dimethyldichlorosilane. Background technique [0002] Organosilicon compounds combine the properties of inorganic materials and organic materials, and have excellent properties such as high and low temperature resistance, oxidation resistance, corrosion resistance, electrical insulation, stability and physiological inertia, and are widely used in various sectors of the national economy. Silicone materials widely used in industry refer to the general term of high molecular polymers containing O-Si-O main chain and at least one organic group on Si atom, usually composed of organosilicon monomers (such as methyl chlorosilane ) prepared by hydrolysis. Organosilicon monomers refer to compounds containing Si-C bonds and at least one organic group bon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/122C07F7/16
Inventor 苏发兵王莹利宋莲英车红卫平原翟世辉朱德洪
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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