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High-activity environment-friendly low-mercury composite catalyst

A low-mercury catalyst, environmentally friendly technology, used in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as serious pollution, high cost, and large usage, and achieve low prices and stability. Good sex, strong synergistic effect

Inactive Publication Date: 2014-01-22
刘金朝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to produce a high-activity composite environment-friendly low-mercury catalyst to solve the shortcomings and deficiencies of the existing high-mercury catalyst, such as large usage, serious pollution, and high cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Comprising, by weight, the following ingredients: Mercury Chloride: 4%; Strontium Chloride: 0.2%; Copper Chloride: 0.2%; Calcium Chloride: 0.5%; Aluminum Chloride: 0.6%; Barium Chloride: 0.6%; The balance is activated carbon. According to the above ratio, in the solution made of hydrochloric acid and desalinated water, the mixture of barium chloride, strontium chloride, copper chloride, calcium chloride, aluminum chloride and activated carbon is jointly immersed and boiled for 8 hours, take out the activated carbon for dehydration and drying, the drying temperature is between 60°C-65°C, so that the activated carbon has a larger porosity, and make a solution of mercuric chloride, hydrochloric acid, and desalinated water with a precision content ≥99%. Soak the above-mentioned activated carbon in the solution, and perform ten times of "soaking-dehydration-drying". In order to avoid the loss of chloride in the drying process, the drying temperature is between 60°C and 65°C e...

Embodiment 2

[0015] Comprising, by weight, the following ingredients: Mercury Chloride: 6%; Strontium Chloride: 1%; Copper Chloride: 1%; Calcium Chloride: 0.2%; Aluminum Chloride: 0.2%; Barium Chloride: 0.2%; The balance is activated carbon. According to the above ratio, in the solution made of hydrochloric acid and desalinated water, the mixture of barium chloride, strontium chloride, copper chloride, calcium chloride, aluminum chloride and activated carbon is jointly immersed and boiled for 8 hours, take out the activated carbon for dehydration and drying, the drying temperature is between 60°C-65°C, so that the activated carbon has a larger porosity, and make a solution of mercuric chloride, hydrochloric acid, and desalinated water with a precision content ≥99%. Soak the above-mentioned activated carbon in the solution, and carry out 20 times of "soaking-dehydration-drying". In order to avoid the loss of chloride in the drying process, the drying temperature is between 60°C and 65°C each...

Embodiment 3

[0017] After testing, the optimal ratio is calculated by weight, including the following components: mercuric chloride: 5%; strontium chloride: 0.6%; copper chloride: 0.6%; calcium chloride: 0.3%; aluminum chloride: 0.6%; Barium chloride: 0.3%; the balance is activated carbon. According to the above ratio, in the solution made of hydrochloric acid and desalinated water, mix barium chloride, strontium chloride, copper chloride, calcium chloride, aluminum chloride and activated carbon The mixture is impregnated and boiled together for 8 hours, and the activated carbon is taken out for dehydration and drying. The drying temperature is between 60°C and 65°C, so that the activated carbon has a large porosity, and the mercury chloride with a precision content of ≥99% is mixed with hydrochloric acid and desalted. Make a solution with water, soak the above-mentioned activated carbon in this solution, and perform "soaking-dehydration-drying" twenty times. In order to avoid the loss of c...

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Abstract

The invention belongs to the technical field of chemical materials and discloses a high-activity environment-friendly low-mercury composite catalyst. The high-activity environment-friendly low-mercury composite catalyst comprises the following components according to the product specification weight: 4-6% of mercuric chloride, 0.2-0.6% of barium chloride, 0.2-1% of strontium chloride, 0.2-1% of copper chloride, 0.2-0.5% of calcium chloride, 0.2-0.6% of aluminum chloride and 85-95% of activated carbon. The total weight of the barium chloride, the strontium chloride, the copper chloride, the calcium chloride and the aluminum chloride is 1-3.7%. The high-activity environment-friendly low-mercury composite catalyst has the advantages that expensive mercuric chloride is replaced with a chloride blending agent with relatively low price, and the synthesized high-activity environment-friendly low-mercury composite catalyst is good in stability, low in price and free of pollution to the environment so as to be an ideal high-activity environment-friendly low-mercury composite catalyst.

Description

technical field [0001] The invention belongs to the technical field of chemical materials and relates to a high-activity composite environment-friendly low-mercury catalyst. Background technique [0002] In recent years, the domestic demand for mercury chloride resources has soared, resulting in domestic mercury resources that can no longer meet the market demand. At the same time, the country pays more attention to environmental protection and strictly controls the import of mercury resources. [0003] Mercury catalyst is an indispensable catalyst in the synthesis of vinyl chloride by acetylene method, and the main component of mercury catalyst is mercuric chloride. When using the acetylene method to synthesize vinyl chloride, the use of high-mercury catalysts will not only increase the cost, but also emit a large amount of mercury pollutants, which will cause great harm to the environment and the human body. According to the survey, every 1t of vinyl chloride monomer produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/138
Inventor 刘金朝
Owner 刘金朝
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