Metal complex catalyst for catalyzing acetylene hydrochlorination reaction and preparation method and application thereof

A metal complex, acetylene hydrochlorination technology, applied in the direction of organic compound/hydride/coordination complex catalyst, catalytic reaction, hydrogen halide addition preparation, etc., can solve the problem of low reactivity and short catalyst life of non-metallic catalysts and other problems, to achieve the effect of improving catalytic activity and stability, not easy to be lost and agglomerated

Active Publication Date: 2020-05-29
SHIHEZI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low reactivity and short catalyst life of metal-free catalysts, there are many problems to be solved on the road to industrialization

Method used

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  • Metal complex catalyst for catalyzing acetylene hydrochlorination reaction and preparation method and application thereof
  • Metal complex catalyst for catalyzing acetylene hydrochlorination reaction and preparation method and application thereof
  • Metal complex catalyst for catalyzing acetylene hydrochlorination reaction and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] The preparation method of the metal complex catalyst for catalyzing the hydrochlorination of acetylene is as follows:

[0066] Step 1. Synthesis of gold complex: Weigh 0.0014976g of phthalimide, add it to 30mL of deionized water, stir at 80℃ for 2h, then add 0.000571g of KOH, continue to stir for 12h; finally add 0.00419 gHAuCl 4 ·XH 2 O was added to it and stirred at room temperature for 12 hours to obtain a gold complex solution.

[0067] Step 2. Loading of gold complexes and thermal activation of the catalyst: Add 2g of activated carbon support to the gold complex solution and stir for 12h at 70°C; then transfer it to a tube furnace and thermally activate it at 140°C in a nitrogen flowing atmosphere 24h, get the supported gold complex catalyst, denoted as Au-L 1 / C.

Embodiment 2

[0069] The preparation method of the metal complex catalyst for catalyzing the hydrochlorination of acetylene is as follows:

[0070] Step 1. Synthesis of gold complex: Weigh 0.0471689g of phthalimide, add it to 30mL of deionized water, stir at 80℃ for 2h, then add 0.025645g of NaOH, continue to stir for 12h; finally add 0.044012 gHAuCl 4 ·XH 2 O was added to it and stirred at room temperature for 12 hours to obtain a gold complex solution.

[0071] Step 2. Loading of gold complexes and thermal activation of the catalyst: Add 2g of activated carbon support to the gold complex solution and stir for 12h at 70°C; then transfer it to a tube furnace and thermally activate it at 140°C in a nitrogen flowing atmosphere 16h, get the supported gold complex catalyst, denoted as Au-L 1-1 / C.

Embodiment 3

[0073] The preparation method of the metal complex catalyst for catalyzing the hydrochlorination of acetylene is as follows:

[0074] Step 1. Synthesis of gold complex: Weigh 0.03152g of succinimide, add it to 30mL of deionized water, stir at room temperature for 4h, then add 0.025449g of NaOH, continue to stir for 12h; finally add 0.04368g of HAuCl 4 ·XH 2 O was added to it and stirred at room temperature for 12 hours to obtain a gold complex solution.

[0075] Step 2. Loading of gold complexes and thermal activation of the catalyst: Add 2g of activated carbon support to the gold complex solution and stir for 12h at 70°C; then transfer it to a tube furnace and thermally activate it at 140°C in a nitrogen flowing atmosphere 16h, get the supported gold complex catalyst, denoted as Au-L 2 / C.

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Abstract

The invention provides a metal complex catalyst for catalyzing an acetylene hydrochlorination reaction. The metal complex catalyst is formed by coordination of a central atom metal and a ligand, the central atomic metal is Au, Pt, Ru or Cu; the ligand is an organic ligand containing a diimide [-(C=O)-NH-(C=O)-] structure. The invention also provides a preparation method and application thereof. Compared with an existing metal catalyst for acetylene hydrochlorination reaction, the metal complex catalyst has the advantages that active components are in a high-dispersion state and are not easy tolose and agglomerate, reactants of acetylene and hydrogen chloride are activated at the same time, and the catalytic activity and stability of the existing metal catalyst are greatly improved.

Description

Technical field [0001] The invention relates to a metal complex catalyst for catalyzing the hydrochlorination reaction of acetylene, and a preparation method and application thereof. Background technique [0002] Polyvinyl chloride (PVC) is a polymer material produced by the polymerization of vinyl chloride (VCM). Its global usage ranks third among polymer materials and is widely used in industry, construction, agriculture, daily life and other fields. According to the method of obtaining VCM, it can be divided into acetylene method and ethylene method. Based on the energy characteristics of my country's "rich coal, lean oil, and less gas", the proportion of calcium carbide acetylene process that uses coal as the source (82%) far exceeds that of ethylene process that uses petroleum resources as the source. However, the calcium carbide acetylene process is now China still uses carbon-supported mercury chloride as an industrial catalyst to catalyze the acetylene hydrochlorination r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22C07C17/08C07C21/06
CPCB01J31/182B01J31/184C07C17/08B01J2531/18B01J2231/32C07C21/06Y02P20/584
Inventor 张海洋李延琴张金利李林峰谢东阳李建蔡明代斌
Owner SHIHEZI UNIVERSITY
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