Environmental-friendly mercuric chloride metal catalyst and preparation method thereof

A metal catalyst and mercuric chloride technology, applied in physical/chemical process catalysts, hydrogen halide addition preparation, chemical instruments and methods, etc., can solve the problems of cumbersome catalyst preparation process, cumbersome catalyst preparation, and low catalytic efficiency, and achieve It is beneficial to control production, the catalyst releases smoothly, and is easy for industrial production
CN102145303AInactive Publication Date: 2011-08-10ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2011-08-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an environmental-friendly mercuric chloride metal catalyst, which consists of an inhomogeneous mercuric chloride metal catalyst and a polymer coated on the surface of the inhomogeneous mercuric chloride metal catalyst in a film mode. In a reaction of producing vinyl chloride by acetylene hydrochlorination, due to the adoption of the catalyst, on the premise of ensuring the activity of the catalyst and the selectivity of vinyl chloride, the environment and health problems caused by Hg sublimation are reduced. The catalyst has the characteristics of high catalyzing efficiency, low toxicity, mild catalyst release and the like. The invention also discloses a preparation method of the environmental-friendly mercuric chloride metal catalyst. In the preparing process, few parameters need to be controlled. The preparation method has high repeatability and strong controllability and is easy for industrial production.
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Description

technical field

[0001] The invention relates to the field of catalysts, in particular to an environment-friendly mercuric chloride (HgCl 2 ) metal catalyst and preparation method thereof. Background technique

[0002] Vinyl chloride is an important raw material for organic synthesis, and its main use is to produce polyvinyl chloride (PVC). In my country, the output and sales volume of vinyl chloride rank among the top in the world. At present, the industrial production methods of vinyl chloride mainly include ethylene method and acetylene method. Among them, the acetylene process is simple, but because mercuric chloride is used as a catalyst in the process, mercuric chloride has high toxicity, poor stability, and is easy to sublime (at 136.2°C, the vapor pressure of mercuric chloride is 133Pa), which will affect workers. It will also cause environmental pollution, which has been basically eliminated abroad. In my country, due to the scarcity of ethylene resources, the ac...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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