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Synthetic process of ethylene bis stearamide with high yield

A technology for the synthesis of ethylene bisstearamide and a synthesis process, which is applied in the field of high-yield synthesis technology of ethylene bisstearamide, can solve the problems of complex post-treatment, many wastes, and low total yield, and achieve convenient operation, The effect of less waste and high yield

Inactive Publication Date: 2013-03-13
QINGDAO SHUAIWANG OIL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the traditional production process of ethylene bisstearamide is simple and easy, the post-treatment is complicated, there are many wastes and the total yield is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Mix stearic acid, phosphoric acid, acetic anhydride equal mixture, and sodium sulfite in a mass ratio of 100:1:1, stir and react, and when the temperature reaches 100°C, slowly add ethylenediamine dropwise, the mass ratio of stearic acid to ethylenediamine The ratio is 2:1, and then the temperature is raised to 220°C for 2 hours. After the reaction, the material is poured into the ethanol solution, filtered, and dried to obtain the product.

Embodiment 2

[0011] Mix stearic acid, phosphoric acid, acetic anhydride equal mixture, and potassium sulfite in a mass ratio of 100:1:1, stir and react, and when the temperature reaches 100°C, slowly add ethylenediamine dropwise, the mixture of stearic acid and ethylenediamine The mass ratio is 2:1, and then the temperature is raised to 170°C for 3 hours. After the reaction, the material is poured into the ethanol solution, filtered, and dried to obtain the product.

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PUM

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Abstract

The invention discloses a synthetic process of ethylene bis stearamide with high yield. Stearic acid and ethylenediamine are used as reaction raw materials, phosphoric acid and acetic anhydride are used as catalysts, and sulfite is used as an antioxidant. The synthetic process is simple, mild in reaction conditions, convenient to operate, high in yield and less in three wastes.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, and in particular relates to a high-yield synthesis process of ethylene bis-stearamide. Background technique [0002] Ethylene bisstearamide can be used as a resin additive, paraffin gloss agent, etc., and is widely used as an external lubricant for plastics and rubber processing. Although the traditional production process of ethylene bisstearamide is simple and easy, the post-treatment is complicated, there are many wastes and the total yield is low. Contents of the invention [0003] In order to solve the above technical problems, the object of the present invention is to provide a high-yield synthesis technique of ethylene bis-stearamide. [0004] The process of the present invention adopts the following technical scheme: mix stearic acid, phosphoric acid, acetic anhydride equal mixture, and sulfite in a mass ratio of 100:1:1, stir for reaction, and slowly add ethylenediamine dropwi...

Claims

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Application Information

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IPC IPC(8): C07C233/36C07C231/02
Inventor 王明夫
Owner QINGDAO SHUAIWANG OIL CHEM
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