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Copper-containing complex catalyst and preparation method and application thereof

A technology of copper complexes and catalysts, which is applied in the field of catalysts, can solve problems such as high requirements for reaction equipment and difficult wastewater treatment, and achieve the effects of simple preparation methods, long processes, and good catalytic activity

Inactive Publication Date: 2015-05-27
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of preparing these ester compounds, the direct esterification method is the main production process in industrial production, and often needs to use the catalysis of strong acidic catalysts such as sulfuric acid, so the requirements for the reaction equipment are very high, and after the reaction is completed The wastewater containing sulfuric acid produced afterwards is also difficult to treat in industry

Method used

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  • Copper-containing complex catalyst and preparation method and application thereof
  • Copper-containing complex catalyst and preparation method and application thereof

Examples

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Embodiment 1

[0024] First take copper nitrate in a 250mL large beaker, add 80mL of water, then take sodium carbonate, (so that the ratio of copper nitrate and sodium carbonate is 1:1) in a 100mL small beaker, add 80mL of water, stir to fully dissolve the two, and assemble the titration device. While stirring the copper nitrate solution with a magnet, slowly add sodium carbonate dropwise to it with a constant pressure dropping funnel, a green precipitate appears in the blue copper nitrate solution, and with the continuous addition of sodium carbonate, the precipitate More and more, the overall solution turned into a green mixture. After the sodium carbonate titration is completed, continue to stir for 30 minutes to fully react the sodium carbonate and copper nitrate. After stirring, the mixed solution was randomly separated into a precipitate layer and an aqueous layer. Assemble a suction filtration device, suction filter the obtained mixed solution to obtain a green solid, put the filter...

Embodiment 2

[0029] First take copper acetate in a 250mL large beaker, add 80mL of water, then take sodium carbonate, (the ratio of the amount of copper acetate and sodium carbonate taken is 1:2) in a 100mL small beaker , add 80mL of water, stir to fully dissolve both, and assemble the titration device. While stirring the copper acetate solution with a magnet, slowly add sodium carbonate dropwise to it with a constant pressure dropping funnel, a green precipitate appears in the copper chloride solution, and with the continuous addition of sodium carbonate, the precipitation becomes more and more More and more, the overall solution turns into a green mixture. After the sodium carbonate titration is completed, continue to stir for 30 minutes to fully react the sodium carbonate and copper chloride. After stirring, the mixed solution was randomly separated into a precipitate layer and an aqueous layer. Assemble a suction filtration device, and suction-filter the obtained mixed solution to ob...

Embodiment 3

[0034] Take copper chloride in a 250mL large beaker, add 80mL of water, then take sodium carbonate, (the ratio of the amount of copper acetate and sodium carbonate taken is 1:1) in a 100mL small beaker , add 80mL of water, stir to fully dissolve both, and assemble the titration device. While stirring the copper chloride solution with a magnet, slowly add sodium carbonate dropwise to it with a constant pressure dropping funnel, a green precipitate appears in the copper solution, and with the continuous addition of sodium carbonate, the precipitate becomes more and more More, the overall solution turns into a green mixture. After the sodium carbonate titration is completed, continue to stir for 30 minutes to fully react the sodium carbonate and copper acetate. After stirring, the mixed solution was randomly separated into a precipitate layer and an aqueous layer. Assemble a suction filtration device, and suction-filter the obtained mixed solution to obtain a green solid, and p...

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Abstract

The invention relates to a copper-containing complex catalyst and a preparation method and application thereof. The preparation method comprises the following steps: adding water into copper carbonate, dripping perchloric acid to generate reaction, evaporating a blue solution after reaction is completed so as to be concentrated to obtain crystals, and finally obtaining copperperchlorate hydrate; adding the copperperchlorate hydrate and organic diamine into a solvent, stirring, performing heating backflow reaction under the temperature of 50-80 DEG C for 5-8 hours, and performing filtering, washing and drying to obtain a product. Compared with the prior art, the preparation method for the catalyst is simpler, and the catalysis activity is relatively high; pollution cannot be generated.

Description

technical field [0001] The invention relates to a copper-containing complex catalyst and its preparation method and application. The novel complex is prepared by the complex action of copper perchlorate and organic diamine, and is used as a catalyst to catalyze esterification synthesis reaction, which belongs to the technical field of catalysts . Background technique [0002] Transition metal-catalyzed C-H functionalization reaction is an important intermediate process for the construction of new C-C, C-N and C-O chemical bonds, and is an effective method for preparing multifunctional substituted organic compounds. Traditional catalysts for C-H bond activation reactions mainly include transition metal complexes such as ruthenium, rhodium, and palladium. . In order to solve the above problems and continuously develop new and more efficient C-H functionalization reactions, chemists have gradually paid attention to copper complexes with lower prices in recent years. It should...

Claims

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Application Information

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IPC IPC(8): B01J31/22C07F1/08C07C67/08C07C69/14C07C69/157
Inventor 杨兵赵雷振石敬民李敏张其坤郑鲁沂李雪娇王赤峰
Owner SHANDONG NORMAL UNIV
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