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

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...

AI Technical Summary

Problems solved by technology

Most of the currently existing catalysts were researched and developed a long time ago, and most of them have poor activity. Although some have good activity, the life of the catalyst is short and cannot be industrialized.

Images