Au-Co-Cu catalyst used in synthesis of vinyl chloride by hydrochlorination of acetylene and preparation method for Au-Co-Cu catalyst

A technology for the production of vinyl chloride and catalysts by chlorination, which is applied in the direction of hydrogen halide addition preparation, organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, etc. Short life and other problems, to achieve long life, high strength, and reduce by-products

Inactive Publication Date: 2012-11-28
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Problems solved by technology

Most of the currently existing catalysts were researched and developed a long time ago, and most of them have p

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  • Au-Co-Cu catalyst used in synthesis of vinyl chloride by hydrochlorination of acetylene and preparation method for Au-Co-Cu catalyst
  • Au-Co-Cu catalyst used in synthesis of vinyl chloride by hydrochlorination of acetylene and preparation method for Au-Co-Cu catalyst

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[0017] Example 1: The catalyst for producing vinyl chloride by acetylene hydrochlorination includes an inert carrier and several metal salts, the content of Au accounts for 0.5% to 3% of the catalyst weight, and the molar ratio of Cu and Co(iii) to Au Au / Cu=1:0~5, Au / Co(iii)=1:0~5; the inert carrier is a porous carrier, and it is planned to use pitch-based spherical carbon or powdery activated carbon. The preparation method of the catalyst of producing vinyl chloride with acetylene hydrochlorination is: a, the HAuCl of metering 4 4H 2 O is made into aqua regia solution with newly prepared aqua regia, and the concentration of aqua regia solution makes the content of Au in the final catalyst be 0.5%~3% of catalyst weight; b, inert support is impregnated in Au aqua regia solution, and soaking time is more than 5 hours c, heated on a water bath until the liquid evaporates substantially, and then put it into an oven for drying to obtain an Au catalyst; d, mix copper chloride and h...

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Abstract

The invention discloses a mercury-free catalyst used in the generation of vinyl chloride by the hydrochlorination of acetylene. In the catalyst, gold ions are taken as an active ingredient, and one or two transition metal elements such as copper chloride and hexaamminecobalt trichloride are added additionally; metal salts of the active ingredient can be nitrate, acetate, chloride, a complex and the like; and the active ingredient is loaded by a porous carrier, and the porous carrier is pitch-based spherical activated carbon or powdered activated carbon. The active ingredient is loaded by an impregnation method.

Description

technical field [0001] The invention relates to a method for preparing a mercury-free catalyst for synthesizing vinyl chloride by utilizing acetylene. Background technique [0002] With the development of the national economy and the improvement of people's living standards, the demand for polyvinyl chloride is increasing. At present, the mercury-containing catalyst used in the production of vinyl chloride by the calcium carbide method will produce "mercury pollution" on the one hand, and face the problem of lack of mercury resources on the other hand. The present invention relates to a novel mercury-free catalyst. [0003] The production of polyvinyl chloride by the calcium carbide method is rarely used abroad. There are not many studies on mercury-free catalysts at home and abroad, and few reports have been seen. So far, there has been no industrialization report. [0004] The research and development of mercury-free catalysts are faced with the problems of catalyst acti...

Claims

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Application Information

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IPC IPC(8): B01J27/128B01J27/25B01J31/04C07C21/06C07C17/08
Inventor 代斌张海洋王绪根魏忠
Owner 代斌
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