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A high-performance catalyst for carbon dioxide resource utilization and its preparation method

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

Active Publication Date: 2020-10-16
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A high-performance catalyst for carbon dioxide resource utilization and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0021] A method for preparing a high-performance catalyst for carbon dioxide resource utilization includes the following steps:

[0022] According to the mass ratio of 1:0.43:4.1:11.6, the melamine, paraformaldehyde and F127 emulsion stabilizer is dissolved in dimethyl sulfoxide (DMSO), and then Isopar is 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, and filtered to obtain a solid. The solid was 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, see figure 1 .

[0023] As can be seen from the figure, the figure a shows that there are a large number of macroporous structures in the structure, and the figure b shows that there are mesoporous channels in the pore walls at the same time. The ...

Embodiment 2

[0031] The preparation method of a high-performance catalyst for carbon dioxide resource utilization includes the following steps:

[0032] According to the mass ratio of 1:1.6:4.5:13, the melamine, paraformaldehyde and F127 emulsion stabilizer is dissolved in dimethyl sulfoxide (DMSO), and then Isopar is 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 recycling.

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

Embodiment 3

[0035] The preparation method of a high-performance catalyst for carbon dioxide resource utilization includes the following steps:

[0036] According to the mass ratio of 1:0.4:1.5:5, the melamine, paraformaldehyde and F127 emulsion stabilizer is dissolved in dimethyl sulfoxide (DMSO), and then Isopar is added dropwise TM M, DMSO and Isopar TM The volume ratio of M is 1:3, 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 24 hours, filter and dry the solid to obtain a high-performance catalyst for carbon dioxide recycling.

[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, and particularly relates 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 has increased day by day, which has caused a large amount of carbon dioxide to be emitted into the air and caused serious environmental problems such as the greenhouse effect. Carbon dioxide is one of the most common single-carbon carbon sources due to its easy availability, renewability, and low toxicity, and is widely used in chemical synthesis. 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 wide attention from scholars at home and abroad. Among many chemical products, carbonates, such as propylene carbonate, ethylene car...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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