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Copper oxide-zinc oxide composite catalyst, preparation method and application

A composite catalyst, copper oxide technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of unsatisfactory catalytic performance, uneven mixing, process flow Long and other problems, to achieve the effects of controllable copper and zinc components, small particles and wide sources

Active Publication Date: 2016-06-15
TAIXING SMELTING PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of the shortcomings of long process flow and large product particle size in the above-mentioned existing copper oxide industrial production technology, and in the Rochow reaction, the mixed inhomogeneous force between the main catalyst CuO and the auxiliary agent Zn or ZnO components is weak, the synergistic effect is poor, and the catalytic effect is poor. The object of the present invention is to provide a kind of copper oxide-zinc oxide composite catalyst, preparation method and application, the raw material source of described method is extensive, and technological process is simple; The prepared copper oxide-zinc oxide composite oxide nanoparticles The particle size of the product is small, and the components are evenly distributed; and the binary composite structure shows a more obvious synergistic effect in catalytic applications

Method used

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  • Copper oxide-zinc oxide composite catalyst, preparation method and application
  • Copper oxide-zinc oxide composite catalyst, preparation method and application
  • Copper oxide-zinc oxide composite catalyst, preparation method and application

Examples

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Effect test

Embodiment 1

[0069] Catalyst preparation:

[0070] (1) Configure copper-zinc ion solution (n Cu 2+ is 0.025mol and n Cu 2+ :n Zn 2+ =10:1) 100mL, the solvent is a pure aqueous solution, the copper ions are derived from copper acetate, and the zinc ions are derived from zinc acetate;

[0071] (2) 4.4g carbon black (50nm) is joined in the copper zinc ion solution of step (1), makes in the solution, the mass ratio of carbon black and catalyst active ingredient (copper oxide and zinc oxide) is 2:1, stirs 4h, impregnated to obtain a carbon black template impregnated with copper-zinc ion solution;

[0072] (3) drying the carbon black template impregnated with the copper-zinc ion solution obtained in step (2) at 60° C. for 4 hours to obtain a carbon black template impregnated with copper-zinc ions;

[0073] (4) Calcining the carbon black template impregnated with copper-zinc ions obtained in step (3) at 500° C. for 4 h in an air atmosphere to obtain a copper oxide-zinc oxide composite cata...

Embodiment 2

[0083] Catalyst preparation:

[0084] (1) Configure copper-zinc ion solution (n Cu 2+ =0.030mol and n Cu 2+ :n Zn 2+ =10:1) 200mL, the solvent is an aqueous alcohol solution (volume ratio of ethanol to water is 0.2:1), copper ions are derived from copper nitrate, and zinc ions are derived from zinc nitrate;

[0085](2) 13.2g of carbon black (60nm) was added to the solution containing copper and zinc ions, so that the mass ratio of carbon black to catalyst active ingredients (copper oxide and zinc oxide) was 5:1, stirred for 8h, and impregnated. A carbon black template impregnated with a copper-zinc ion solution is obtained;

[0086] (3) drying the carbon black template impregnated with the copper-zinc ion solution obtained in step (2) at 80° C. for 24 hours to obtain a carbon black template impregnated with copper-zinc ions;

[0087] (4) Calcining the carbon black template impregnated with copper-zinc ions obtained in step (3) at 750° C. for 24 hours in an air atmospher...

Embodiment 3

[0094] Catalyst preparation:

[0095] (1) configuration of copper-zinc ammonium complex solution (n Cu2+ =0.040mol and n Cu 2+ :n Zn 2+ =10:1) 100mL, the solvent is an aqueous ethanol solution (alcohol-water ratio is 0.4:1), the copper ions are derived from ammonia-impregnated copper powder, and the zinc ions are derived from ammonia-impregnated zinc oxide;

[0096] (2) 10.6g common nano carbon black (70nm) is joined in the ammonia complex solution of copper zinc, and in described solution, the mass ratio of carbon black and catalyst active ingredient (copper oxide and zinc oxide) is 3: 1. Stir for 16 hours and impregnate to obtain a carbon black template impregnated with a copper-zinc ion solution;

[0097] (3) drying the carbon black template impregnated with the copper-zinc ion solution obtained in step (2) at 100° C. for 16 hours to obtain a carbon black template impregnated with copper-zinc ions;

[0098] (4) Calcining the carbon black template impregnated with copp...

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Abstract

The invention relates to a preparation method of a copper oxide-zinc oxide composite catalyst. The method comprises the following steps: soaking a carbon black template in a solution containing copper ions and zinc ions, drying the carbon black template with the copper ions and the zinc ions, and calcining to remove the carbon black template, thereby obtaining the copper oxide-zinc oxide composite catalyst. The copper oxide-zinc oxide composite catalyst provided by the invention takes carbon black as a template agent as the carbon black contains less impurities and is small in particle size, readily available and low in cost; and therefore, composite oxide nano particles with loose structure, smaller particle size and narrow particle size distribution range can be obtained. Meanwhile, the carbon black is easy to remove and cannot pollute the environment after being removed; and the preparation method is applicable to industrial production.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and relates to a copper oxide-zinc oxide composite catalyst, a preparation method and its application, in particular to a preparation method of a loose copper oxide-zinc oxide composite oxide nanoparticle catalyst and a preparation method using ordinary carbon black and its uses. Background technique [0002] Copper oxide is an important inorganic chemical raw material, which is widely used in catalysis, sensors, high-temperature superconductivity and other fields. It can be used as a colorant for glass and ceramics, anti-wrinkle for paint, and an oxygen promoter for determining the carbon content of compounds in organic analysis. . At present, the relatively mature processes in the production of copper oxide powder in my country include high-temperature solid-phase method, copper sulfate calcination method, melt spray method, etc. [0003] The high-temperature solid-phase method has a long p...

Claims

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Application Information

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IPC IPC(8): B01J23/80B01J35/10C07F7/16
CPCC07F7/16B01J23/002B01J23/80B01J35/50B01J35/60
Inventor 苏发兵李晶纪永军刘合之王光娜朱永霞谭强强
Owner TAIXING SMELTING PLANT
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