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Cuprous catalyst and application of preparation method of cuprous catalyst in acetylene hydrochlorination

A technology of acetylene hydrochlorination and copper catalyst, applied in the direction of hydrogen halide addition preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of low activity, easy carbon deposition, easy loss, etc.

Pending Publication Date: 2021-11-12
XINJIANG CORPS MODERN GREEN CHLOR ALKALI CHEM ENG RES CENT LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of short life, low activity, easy carbon deposition and easy loss of precious metal mercury-free catalysts for acetylene hydrochlorination by calcium carbide method, the present invention proposes a monovalent copper catalyst and its preparation method in the application of acetylene hydrochlorination , the catalyst has high activity and good stability, and is a low-cost mercury-free catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Weigh 0.4g of copper chloride and 0.4g of nickel chloride into a beaker, then add 20ml of deionized water to dilute. Then weigh 0.22g of potassium thiocyanate and add it to the above solution. After stirring evenly, add 10g of activated carbon carrier, stir evenly, impregnate at room temperature for 24h, then dry at 50°C for 8h, and dry at 125°C for 12h after cooling down naturally. Prepare catalyst samples.

Embodiment 2

[0018] Weigh 2g of copper chloride and 0.4g of cerium chloride in a beaker, then add 20ml of deionized water to dilute. Then weigh 1g of potassium thiocyanate and add it to the above solution, stir evenly, add 10g of activated carbon carrier, stir evenly, impregnate at room temperature for 24h, then dry at 50°C for 8h, dry at 125°C for 12h and cool down naturally for the prepared Catalyst samples.

Embodiment 3

[0020] Weigh 4g of copper chloride and 2g of stannous chloride in a beaker, then add 20ml of deionized water to dilute. Then weigh 1.8g of potassium thiocyanate and add it to the above solution. After stirring evenly, add 10g of activated carbon carrier, stir evenly, impregnate at room temperature for 24h, then dry at 50°C for 8h, and dry at 125°C for 12h after cooling down naturally. Prepare catalyst samples.

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PUM

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Abstract

The invention discloses a cuprous catalyst and application of a preparation method of the cuprous catalyst in acetylene hydrochlorination. The main active component of the catalyst is cuprous thiocyanate, one or more of potassium, barium, zinc, nickel, cobalt, silver, cerium and tin compounds are used as auxiliary active components, a carrier is activated carbon, and the required catalyst is prepared by dipping and drying. The prepared cuprous catalyst has the advantages of being good in comprehensive performance, high in catalyst activity, good in selectivity, environmentally friendly and the like.

Description

technical field [0001] The invention belongs to the field of mercury-free catalysts for the production of polyvinyl chloride by calcium carbide method, in particular to the application of a monovalent copper catalyst and its preparation method in acetylene hydrochlorination. Background technique [0002] Vinyl chloride monomer is an important synthetic raw material for polyvinyl chloride. Polyvinyl chloride is one of the synthetic resins with the largest consumption and output in my country. However, the basic national conditions of our country, which has more coal and less oil, determine that the production of vinyl chloride by acetylene hydrochlorination is still in my country. occupy a dominant position. One of the main problems facing the synthesis of vinyl chloride by acetylene hydrochlorination is the environmental pollution caused by the use of mercury catalyst and the large consumption of mercury resources. With the increasing awareness of environmental protection an...

Claims

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Application Information

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IPC IPC(8): B01J27/24C07C17/08C07C21/06
CPCB01J27/24C07C17/08C07C21/06
Inventor 宋晓玲周军郑伟玲陈万银庞晓东万振国张万鹏赵忠峰刘飞任军义熊新阳李国栋
Owner XINJIANG CORPS MODERN GREEN CHLOR ALKALI CHEM ENG RES CENT LTD