The production method of 3-hydroxypropionate

A hydroxypropionate, production method technology, applied in chemical instruments and methods, carbon monoxide or formate reaction preparation, physical/chemical process catalysts, etc., can solve problems such as poor reaction performance, complex catalyst preparation, etc., to achieve stable properties , low price, high activity effect

Active Publication Date: 2022-04-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is that the preparation of the catalyst is complicated and the reactivity is poor. A new production method of 3-hydroxypropionate is provided. The method has the advantages of simple catalyst, stable properties, low cost and good reactivity, and Advantages of mild reaction

Method used

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  • The production method of 3-hydroxypropionate

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Experimental program
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Effect test

Embodiment 1

[0032] In a 100mL autoclave, add 4.0mmol cobalt chloride, 2.0mmol triethylamine, 0.4mmol magnesium powder, 100.0mmol ethylene oxide, and 750.0mmol ethanol in sequence. The kettle body was fully cooled to 0°C, the air in the kettle was replaced with nitrogen three times, and synthesis gas (H 2 / CO=0.2:1), make the system pressure 10MPa, and react at 70°C for 20 hours. After the reaction was completed, the reactor body was cooled to 0° C., and the pressure was slowly released to normal pressure. The reactor was purged three times with nitrogen, and samples were taken for analysis. The experimental results are shown in Table 1.

Embodiment 2

[0034] In a 100mL autoclave, add 4.0mmol cobalt phosphate, 6.0mmol pyridine, 0.8mmol aluminum powder, 40.0mmol ethylene oxide, and 750.0mmol methanol in sequence. The kettle body was fully cooled to 0°C, the air in the kettle was replaced with nitrogen three times, and synthesis gas (H 2 / CO=0.5:1), make the system pressure 9MPa, and react at 60°C for 24 hours. After the reaction was completed, the reactor body was cooled to 0° C., and the pressure was slowly released to normal pressure. The reactor was purged three times with nitrogen, and samples were taken for analysis. The experimental results are shown in Table 1.

Embodiment 3

[0036] In a 100mL autoclave, add 4.0mmol cobalt acetate, 4.0mmol quinoline, 0.27mmol zinc powder, 20.0mmol ethylene oxide, and 1000.0mmol methanol in sequence. The kettle body was fully cooled to 0°C, the air in the kettle was replaced with nitrogen three times, and synthesis gas (H 2 / CO=1:1), make the system pressure 8MPa, and react at 90°C for 20 hours. After the reaction was completed, the reactor body was cooled to 0° C., and the pressure was slowly released to normal pressure. The reactor was purged three times with nitrogen, and samples were taken for analysis. The experimental results are shown in Table 1.

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Abstract

The invention relates to a production method of 3-hydroxypropionate, which mainly solves the problems of complex catalyst preparation and low activity in the prior art. The present invention is by adopting the method for producing 3-hydroxypropionate, under the presence of cobalt salt, ligand and cocatalyst, ethylene oxide, synthesis gas and alcohol, reaction obtains 3-hydroxypropionate; Wherein, described cobalt salt It is one of cobalt phosphate, cobalt sulfate, cobalt acetate, cobalt chloride, cobalt carbonate, cobalt nitrate, cobalt hydroxide, cobalt oxide, cobalt oxalate, the ligand is an N-containing ligand, and the cocatalyst is a metal The technical solution of powder or carrier loading metal element better solves this technical problem and can be used in the industrial production of 3-hydroxypropionate.

Description

technical field [0001] The invention relates to a production method of 3-hydroxypropionate, in particular to a method for preparing 3-hydroxypropionate with ethylene oxide and synthesis gas as raw materials. Background technique [0002] 1,3-Propanediol is an important organic fine chemical, which can be used as a raw material for the production of antifreeze, plasticizer, preservative and emulsifier, and is also widely used in industries such as food, cosmetics and pharmaceuticals. Its most important The application is as a monomer to synthesize polytrimethylene terephthalate (PTT) polyester fiber, which is compatible with commonly used polyethylene terephthalate (PET) and polybutylene terephthalate (PBT) fibers Compared with PTT fiber, it not only has excellent properties such as light resistance, less water absorption, and good stability, but also has the advantages of good resilience, easy biodegradation, and little environmental pollution. It has broad application prosp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C67/37C07C69/675B01J31/22B01J31/20
CPCC07C67/37B01J31/1805B01J31/181B01J31/20B01J31/2217B01J2531/845B01J2531/0241C07C69/675
Inventor 刘波吕建刚金照生
Owner CHINA PETROLEUM & CHEM CORP
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