A kind of method for preparing formate by catalytic hydrogenation of carbon dioxide

A carbon dioxide, catalytic hydrogenation technology, applied in the preparation of carboxylate, organic chemistry, etc., can solve the problems of limited application and high temperature, and achieve the effects of simple operation, short preparation route and mild conditions

Active Publication Date: 2018-04-10
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using these metal catalysts, the reaction requires high temperature / high pressure, expensive ligands, and can only be carried out under the protection of nitrogen / argon, which greatly limits its application

Method used

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  • A kind of method for preparing formate by catalytic hydrogenation of carbon dioxide
  • A kind of method for preparing formate by catalytic hydrogenation of carbon dioxide
  • A kind of method for preparing formate by catalytic hydrogenation of carbon dioxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In a 20mL reactor, add sodium hydroxide (0.2mmol), nanoporous palladium (prepared from Pd-Al alloy, 0.01mmol) and deionized water (2mL). Recharge with CO 2 to 1MPa. Put the reaction kettle in an oil bath at 60°C, react for 25 hours, take out the reaction kettle, put it in water, cool to ambient temperature, open the reaction kettle, take out the reaction solution and remove the solvent with a rotary evaporator to obtain sodium formate.

[0022] Sodium formate (HCO 2 Na):

[0023] white solid; 1 H-NMR (400MHz,D 2 O)δ8.42(s,1H); 13 C-NMR (100MHz,D 2 O) δ171.1.

Embodiment 2

[0025] In a 20mL reactor, add potassium hydroxide (1mmol), nanoporous palladium (prepared from Pd-Al alloy, 0.05mmol), deionized water and methanol (10:1, 2mL), replace hydrogen three times, and then fill Hydrogen to 1MPa, then filled with CO 2 to 2MPa. Put the reaction kettle in an oil bath at 100°C, react for 24 hours, take out the reaction kettle, put it in water, cool to ambient temperature, open the reaction kettle, take out the reaction liquid and remove the solvent with a rotary evaporator to obtain potassium formate.

[0026] Potassium formate (HCO 2 K):

[0027] white solid; 1 H-NMR (400MHz,D 2 O)δ8.41(s,1H); 13 C-NMR (100MHz,D 2 O) δ171.3.

Embodiment 3

[0029] In a 20mL reactor, add sodium bicarbonate (2mmol), nanoporous palladium (prepared from Pd-Al alloy, 0.1mmol), a mixed solvent of deionized water and ethanol (10:1, 2mL), and replace with hydrogen for 3 times , fill with hydrogen to 0.25MPa first, then fill with CO 2 to 0.5MPa. Put the reaction kettle in an oil bath at 40°C, react for 22 hours, take out the reaction kettle, put it in water, cool to ambient temperature, open the reaction kettle, take out the reaction solution and remove the solvent with a rotary evaporator to obtain sodium formate.

[0030] Sodium formate (HCO 2 Na): white solid; 1 H-NMR (400MHz,D 2 O)δ8.42(s,1H); 13 C-NMR (100MHz,D 2 O) δ171.1.

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Abstract

The invention belongs to the technical field of carbon dioxide resource utilization and relevant chemistry, and relates to a method for preparing formate through carbon dioxide catalytic hydrogenation. The method is characterized by comprising the steps that carbon dioxide is used as a raw material and reacts with hydrogen under the catalysis of nano-porous palladium catalyst and the alkaline condition to obtain formate. By means of the method for preparing the formate through carbon dioxide catalytic hydrogenation, the preparation route is short, raw materials are cheap and easy to obtain, conditions are mild, operation is simple and convenient, and the reaction yield is high.

Description

technical field [0001] The invention belongs to the field of resource utilization of carbon dioxide and related chemical technologies, and relates to a method for preparing formate by catalytic hydrogenation of carbon dioxide. Background technique [0002] Carbon dioxide is an abundant, cheap, and renewable C1 resource. However, carbon dioxide is an inert gas, and it is difficult to react with other substances. Therefore, the development of highly active catalysts to catalyze the hydrogenation of carbon dioxide to produce formate has become a research hotspot. [0003] In recent years, the research on the hydrogenation of carbon dioxide catalyzed by metal catalysts and the preparation of formate has attracted great attention. Formate is easily acidified into formic acid. Formic acid is a widely used chemical. In industry, toxic gas CO is used as a substrate to synthesize formic acid, which has great potential safety accidents. Catalytic hydrogenation of carbon dioxide to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C51/41C07C53/06
CPCC07C51/41C07C53/06
Inventor 冯秀娟周川成包明于晓强
Owner DALIAN UNIV OF TECH
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