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High-performance catalyst for recycling of carbon dioxide and preparation method of high-performance catalyst

A carbon dioxide and resource recovery technology, applied in the direction of organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of high preparation cost and low efficiency of heterogeneous catalysts , to achieve the effects of low preparation cost, simple preparation method, and easy-to-obtain raw materials

Active Publication Date: 2018-05-18
TIANJIN POLYTECHNIC UNIV
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  • Description
  • Claims
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Problems solved by technology

However, these heterogeneous catalysts are less efficient and costly to prepare

Method used

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  • High-performance catalyst for recycling of carbon dioxide and preparation method of high-performance catalyst

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Effect test

Embodiment 1

[0021] A method for preparing a high-performance catalyst for carbon dioxide resource utilization, comprising the steps of:

[0022] Melamine, paraformaldehyde and F127 emulsion stabilizer was dissolved in dimethyl sulfoxide (DMSO), and then Isopar was added dropwise TM M, DMSO, and Isopar TM The volume ratio of M is 1:3.3, stirred to form a high internal phase emulsion, heated to 170 ° C, reacted for 72 hours, washed with acetone, tetrahydrofuran, dichloroethane and water successively, filtered to obtain a solid, soaked in 0.1mol / 24 hours in L zinc chloride aqueous solution, filter, solid drying, obtain the high-performance catalyst that is used for carbon dioxide resource utilization, see figure 1 .

[0023] It can be seen from the figure that figure a shows that there are a large number of macropore structures in the structure, while in figure b, it can be seen that there are mesoporous channels in the pore wall. The grid structure in the figure c indicates that there...

Embodiment 2

[0031] A method for preparing a high-performance catalyst for carbon dioxide resource utilization, comprising the steps of:

[0032] Be the ratio of 1:1.6:4.5:13 by mass ratio, with melamine, paraformaldehyde and F127 emulsion stabilizer was dissolved in dimethyl sulfoxide (DMSO), and then Isopar was added dropwise TM M, DMSO, and Isopar TM The volume ratio of M is 1:5, stir to form a high internal phase emulsion, heat to 170 ° C, react for 72 hours, wash with acetone, tetrahydrofuran, dichloroethane and water in turn, filter to obtain a solid, soak the solid in 0.1mol / L zinc chloride aqueous solution for 18 hours, filter, and dry the solid to obtain a high-performance catalyst for carbon dioxide resource utilization.

[0033] The conversion rate of propylene carbonate was measured to be 68.1%, and the TOF was 13451.

Embodiment 3

[0035] A method for preparing a high-performance catalyst for carbon dioxide resource utilization, comprising the steps of:

[0036] Be the ratio of 1:0.4:1.5:5 by mass ratio, with melamine, paraformaldehyde and F127 emulsion stabilizer was dissolved in dimethyl sulfoxide (DMSO), and then Isopar was added dropwise TM M, DMSO, and Isopar TM The volume ratio of M is 1:3, stirred to form a high internal phase emulsion, heated to 170°C, reacted for 72 hours, washed with acetone, tetrahydrofuran, dichloroethane and water in turn, filtered to obtain a solid, soaked in 0.1mol / L zinc chloride aqueous solution for 24 hours, filter, and dry the solid to obtain a high-performance catalyst for carbon dioxide resource utilization.

[0037] It was measured that the conversion rate of propylene carbonate was 67.2%, and the TOF was 13642.

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Abstract

The invention discloses a high-performance catalyst for recycling of carbon dioxide and a preparation method of the high-performance catalyst. The preparation method comprises the steps of: dissolvingrigid monomer with an amino group, rigid monomer with an aldehyde group and emulsion stabilizer in a polar organic solvent, adding a non-polar organic solvent dropwise, performing stirring to form high internal phase emulsion, performing heating for a reaction, performing water washing with acetone, tetrahydrofuran, dichloroethane and water sequentially, performing filtration to obtain a solid, soaking the solid in a metal ion aqueous solution for 18-24 hours, performing filtration, and drying a solid to obtain the high-performance catalyst for recycling of carbon dioxide. The preparation method is simple, the raw materials are cheap and easily available, a cycloaddition reaction between carbon dioxide and epoxy monomer can be catalyzed efficiently through the high-performance catalyst for recycling of carbon dioxide, and the preparation cost is low.

Description

technical field [0001] The invention belongs to the field of catalyst preparation, in particular to a high-performance catalyst for carbon dioxide resource utilization and a preparation method thereof. Background technique [0002] With the development of the economy, people's demand for fossil fuels, coal and natural gas is increasing day by day, which results in a large amount of carbon dioxide being emitted into the air and causes serious environmental problems such as the greenhouse effect. Carbon dioxide is one of the most common single-carbon carbon sources and is widely used in chemical synthesis due to its easy availability, renewable, and low toxicity. Therefore, it is of great value to explore efficient and cheap carbon dioxide catalytic technology to prepare and synthesize valuable chemical raw materials, and has attracted extensive attention from scholars at home and abroad. Among many chemical products, carbonates, such as propylene carbonate, ethylene carbonat...

Claims

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Application Information

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IPC IPC(8): B01J31/22C07D317/36
CPCB01J31/1691B01J2531/0252B01J2531/16B01J2531/26B01J2531/842B01J2531/845C07D317/36Y02P20/584
Inventor 孟建强尹健张天琪
Owner TIANJIN POLYTECHNIC UNIV
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