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Polyionic liquid catalyst for catalyzing acetylene hydrochlorination reaction

An acetylene hydrochlorination, polyionic liquid technology, applied in catalytic reaction, organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, etc., can solve the problems of high price, unfavorable industrial production, etc. The effect of low cost, large coordination ability, and stable complex active center

Active Publication Date: 2021-11-05
河北美邦工程科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main feature of the mercury-free catalyst system reported in the current literature and patents is that the catalyst uses activated carbon or other oxides as the carrier, and the supported catalyst is prepared by supporting active components such as metal salts, oxides, or phosphides, and the ionic liquid used Most of them use imidazole rings, pyridine rings or quaternary phosphonium salts as cations, which are relatively expensive and unfavorable for industrial production

Method used

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  • Polyionic liquid catalyst for catalyzing acetylene hydrochlorination reaction
  • Polyionic liquid catalyst for catalyzing acetylene hydrochlorination reaction
  • Polyionic liquid catalyst for catalyzing acetylene hydrochlorination reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A polyionic liquid catalyst for catalyzing the hydrochlorination of acetylene:

[0037] The metallosilicon-based hydrochloride ionic liquid is an ionic liquid with silane pyrrolidone hydrohalide as the cation source material and metal halide as the anion source material, and the molar ratio of the cation source material to the anion source material is 1:0.5.

[0038] The preparation method of the cation source material is:

[0039] 20g of vinyl monomers, 3g of allylamine salt, and 0.01g of copper acrylate were added to the reactor, protected by high-purity nitrogen; then 50g of silane coupling agent, 0.5g of 5% by mass % isopropanol solution of chloroplatinic acid was added dropwise into the reaction kettle, the temperature was controlled at 70° C., and stirred for 2 hours to obtain the cation source material.

[0040] The vinyl monomer is: N-vinylpyrrolidone.

[0041] The allylamine salt is allylamine hydrochloride, which is dried to remove water before use.

[0042...

Embodiment 2

[0049] A polyionic liquid catalyst for catalyzing the hydrochlorination of acetylene:

[0050] The metallosilicon-based hydrochloride ionic liquid is an ionic liquid with silane pyrrolidone hydrohalide as the cation source material and metal halide as the anion source material, and the molar ratio of the cation source material to the anion source material is 1:1.

[0051] The preparation method of the cation source material is:

[0052] 22g of vinyl monomers, 3g of allylamine salt, and 0.02g of copper acrylate were added to the reactor, protected by high-purity nitrogen; then 52g of silane coupling agent, 0.5g of mass percent content of 6 % isopropanol solution of chloroplatinic acid was added dropwise into the reaction kettle, the temperature was controlled at 75° C., and stirred for 2 hours to obtain the cation source material.

[0053] The vinyl monomer is: N-vinylpyrrolidone.

[0054] The allylamine salt is allylamine hydrochloride, which is dried to remove water before us...

Embodiment 3

[0062] A polyionic liquid catalyst for catalyzing the hydrochlorination of acetylene:

[0063] The metallosilicon-based hydrochloride ionic liquid is an ionic liquid with silane pyrrolidone hydrohalide as the cation source material and metal halide as the anion source material, and the molar ratio of the cation source material to the anion source material is 1:1.5.

[0064] The preparation method of the cation source material is:

[0065] The vinyl monomer of 24g, the allylamine salt of 4g, the copper acrylate of 0.03g, join in the reactor, use high-purity nitrogen protection; Then the silane coupling agent of 60g, the mass percentage content of 0.8g 7 % isopropanol solution of chloroplatinic acid was added dropwise into the reaction kettle, the temperature was controlled at 76° C., and stirred for 2 hours to obtain the cation source material.

[0066] The vinyl monomer is: N-vinylpyrrolidone.

[0067] The allylamine salt is allylamine hydrochloride, which is dried to remove...

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Abstract

The invention relates to the technical field of catalysts, in particular to a polyionic liquid catalyst for catalyzing acetylene hydrochlorination reaction. According to the polyionic liquid catalyst for catalyzing the acetylene hydrochlorination reaction, the metal complex is used, the coordination capacity of a complex ligand and metal elements is large, and the active center of the complex is stable; the catalyst has the advantages of no toxicity and environmental friendliness; in addition, compared with existing high-activity noble metal chloride catalysts such as Au, Pd, Pt and Rh, the polyionic liquid catalyst is low in cost.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a polyionic liquid catalyst for catalyzing acetylene hydrochlorination. Background technique [0002] Vinyl chloride is a colorless, easily liquefied, insoluble gas at room temperature, and is an important chemical raw material for the synthesis of polyvinyl chloride. As one of the five most widely used general-purpose plastics, polyvinyl chloride is closely related to our lives. Therefore, the industrial production of vinyl chloride is of great significance. my country is the main consumer and producer of polyvinyl chloride. According to the domestic energy pattern of "poor oil, rich coal, and little gas", the acetylene method with coal as the basic raw material is the main method of vinyl chloride production in my country. At present, mercury catalysts have been used in the industrial production of this method, that is, activated carbon is used as a carrier, and mercury chl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/02B01J31/22C07C17/08C07C21/06
CPCB01J31/0279B01J31/0285B01J31/2239B01J31/1805C07C17/08B01J2531/16B01J2531/828B01J2231/32C07C21/06
Inventor 高子豪王富民张旭斌
Owner 河北美邦工程科技股份有限公司
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