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Producing method of 3-hydroxypropanoate

A technology of hydroxypropionate and production method, applied in chemical instruments and methods, carbon monoxide or formate reaction preparation, organic compound/hydride/coordination complex catalyst, etc., can solve the problem of complex catalyst preparation and poor reaction performance and other problems, to achieve the effect of stable nature, improved conversion rate and low price

Active Publication Date: 2019-04-26
CHINA PETROLEUM & CHEM CORP +1
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  • 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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  • Producing method of 3-hydroxypropanoate

Examples

Experimental program
Comparison scheme
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 producing method of 3-hydroxypropanoate. The problems that a catalyst is complex in preparation and low in activity in the prior art are mainly solved. According to the producing method of the 3-hydroxypropanoate, with the presence of a cobalt salt, ligand and a cocatalyst, oxirane, synthesis gas and alcohol react to obtain the 3-hydroxypropanoate, wherein the cobalt salt is one of cobalt phosphate, cobalt sulfate, cobalt acetate, cobalt chloride, cobalt carbonate, cobalt nitrate, cobalt hydroxide, cobalt oxide and cobalt oxalate, the ligand is N-containing ligand, and the cocatalyst is metal powder or a carrier-loaded metal element. By means of the technical scheme, the technical problem is well solved, and the method can be used for industrial production of the3-hydroxypropanoate.

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 Applications(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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