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Technology for preparing N-fatty acyl amino acid

A fatty acyl amino acid and sodium amino acid technology, which is applied in the preparation of carboxylic acid amides, the preparation of organic compounds, and organic chemistry, etc., to achieve the effects of shortened production process, reasonable dosage and improved product quality

Inactive Publication Date: 2017-11-24
如皋市西林化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to address the deficiencies in the prior art, to provide a production process for N-fatty acyl amino acids, the proportion of raw materials is suitable, basically no by-products are produced, and the product synthesis rate is as high as 87% or more, and the purity is high, which overcomes the Problems in the traditional acid chloride method, in line with the principles of green chemistry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The molar ratio of raw materials methyl laurate and sodium glycinate is 1.2:0.7, the mixture of potassium oxide and magnesium oxide with a molar ratio of 1:1 is used as the metal oxide catalyst, and the amount of catalyst added is 0.05 of the total amount of reactants. wt%.

[0024] One-step synthesis synthesis preparation: sodium glycinate is continuously fed from the sodium glycinate storage tank into a mixing reaction device composed of a primary and secondary mixer connected in series, and methyl laurate is continuously added into the primary and secondary mixers according to the raw material ratio of the proportioning amount. In the secondary mixer, the reaction materials are firstly heated to 20-40 degrees in the mixer, then a proportioned amount of metal oxide catalyst is added, and finally the mixing reaction is carried out, and the reaction time is 3 hours.

[0025] Among them, the reaction temperature of the primary mixer is generally controlled between 20 and...

Embodiment 2

[0028] The molar ratio of the raw materials methyl laurate and sodium alanine is 1.2:0.7, and the mixture of potassium oxide and magnesium oxide with a molar ratio of 1:1 is used as the metal oxide catalyst, and the amount of catalyst added is the total amount of reactants 0.08wt%.

[0029] According to the one-step synthesis method in Example 1, the reaction temperature of the primary mixer is generally controlled between 20 and 30 degrees. Specifically, the temperature of the feed port of the primary mixer is controlled at 20 degrees. The outlet temperature of the device is controlled at 25 degrees; the pH value is maintained at 10. The reaction temperature of the secondary mixer is generally controlled between 30 and 40 degrees. Specifically, the temperature of the inlet of the secondary mixer is controlled at 30 degrees, and the temperature of the outlet of the secondary mixer is controlled at 35 degrees; the pH value is maintained at 10.

[0030] After the reaction was ...

Embodiment 3

[0032] The molar ratio of raw materials methyl laurate and sodium glutamate is 1.8:0.7, and the mixture of potassium oxide and magnesium oxide with a mixing molar ratio of 2:1 is used as the metal oxide catalyst, and the amount of catalyst added is the total amount of reactants 0.05wt%.

[0033] According to the one-step synthesis method in Example 1, the reaction temperature of the primary mixer is generally controlled between 20 and 30 degrees. Specifically, the temperature of the feed port of the primary mixer is controlled at 25 degrees. The outlet temperature of the device is controlled at 25 degrees; the pH value is maintained at 10. The reaction temperature of the secondary mixer is generally controlled between 30 and 40 degrees. Specifically, the temperature of the inlet of the secondary mixer is controlled at 35 degrees, and the temperature of the outlet of the secondary mixer is controlled at 35 degrees; the pH value is maintained at 13 .

[0034] After the reactio...

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PUM

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Abstract

The invention discloses a technology for preparing N-fatty acyl amino acid. The technology has an innovation point that fatty acid methyl ester and amino acid sodium are taken as the raw materials, under effect of a metal oxide catalyst, a one-step synthesis method is used, a N-fatty acyl amino acid sodium surfactant is synthesized, and the mol ratio of fatty acid methyl ester to amino acid sodium is 1.2-1.8:0.7-1. The proportion of the raw materials is appropriate, basically no by-product is generated, the product synthesis rate can reach as high as more than 87%, the purity is high, the problems of treatment of massive waste acids generated in traditional acyl chloride method, complex operation process, and large excitant performance of a raw material PC13 can be overcome, which accord with a green chemical principle. The catalyst amount is reasonable, the catalyst is used for greatly increasing the production efficiency during a preparation process, and shortens the production flow, so that the product quality is increased, and the good product can be directly used as a raw material for pharmacy industry.

Description

technical field [0001] The invention relates to a production process of N-fatty acyl amino acid, which belongs to the technical field of organic compound synthesis. Background technique [0002] In recent years, with the deepening of sustainable development thinking and the enhancement of human environmental protection awareness, some corrosion inhibitors will be subject to more and more restrictions in use due to their high toxicity and poor biodegradability. Therefore, research It is an urgent problem to develop high-efficiency, low-toxicity, and environment-friendly corrosion inhibitors. Amino acid compounds have the characteristics of wide sources, non-toxicity and easy degradation, and have become an important direction for the research and development of corrosion inhibitors. [0003] With the rapid development of science and technology, the research, production and application of surfactants continue to deepen and expand, and new surfactants are constantly coming out...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C231/02C07C233/47B01F17/22B01F17/28C09K23/22C09K23/28
CPCC07C231/02C09K23/00
Inventor 宗在建宗小明赵余仁
Owner 如皋市西林化工有限公司
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