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N-fatty acyl amino acid sodium surfactant and preparation method thereof

A technology of fatty acyl amino acid sodium and surfactant, which is applied in the regeneration and utilization of silkworm chrysalis resources and the field of applied chemistry, can solve the problems of silkworm chrysalis unpleasant smell, application field and consumption limit, and odor removal, etc., and achieve superior surface activity performance and Effects of biocompatibility, overcoming raw material supply problems, and solving high value-added utilization problems

Active Publication Date: 2014-06-18
广东聚龙精细化工有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the unpleasant smell of silkworm chrysalis after high temperature treatment, it is difficult for people to accept it as food, which leads to the limitation of its application field and consumption
At present, although there are many studies on the deodorization of silkworm chrysalis, there is no report on successfully removing the peculiar smell.

Method used

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  • N-fatty acyl amino acid sodium surfactant and preparation method thereof
  • N-fatty acyl amino acid sodium surfactant and preparation method thereof
  • N-fatty acyl amino acid sodium surfactant and preparation method thereof

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Embodiment 1

[0023] See attached figure 1 , which is a process flow diagram for the preparation of N-fatty acyl amino acid sodium surfactant in the present embodiment.

[0024] Step 1: Rinse the reeled silk pupae or machine-made silk cotton sheet pupae repeatedly with water, place them in an oven at 80°C for 2-5 hours, and dry them for 2-5 hours. When the water content is lower than 5%, pupae are crushed. Weigh 1 kg of silkworm chrysalis powder into an extraction container, then add 4 L of n-hexane, and extract at 40 °C for 3 hours. At this time, the color of the extraction mixed solution is orange, and then the n-hexane is recovered by a rotary evaporator, and about 230 g of fat is obtained at the same time, also known as pupa oil, which accounts for about 23% of the dried silkworm pupae, and most of the remaining components are defatted silkworm pupae Protein powder is about 650 g, accounting for about 65% of the total weight of dry silkworm chrysalis.

[0025] Step 2: Weigh 200 g from...

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Abstract

The invention relates to an N-fatty acyl amino acid sodium surfactant and a preparation method thereof, belonging to the technical field of applied chemistry. The preparation method takes silkworm chrysalis as the synthetic raw material, and comprises steps of firstly smashing dried silkworm chrysalis, extracting and degreasing by utilizing a vegetable oil solvent, recycling the solvent so as to prepare pupa oil and degreased pupa powder; hydrolyzing the pupa oil so as to obtain silkworm chrysalis fatty acid, and carrying out reaction on the silkworm chrysalis fatty acid and thionyl chloride so as to generate fatty acyl chloride; carrying out high temperature high pressure acid hydrolysis on the degreased pupa powder so as to prepare a silkworm chrysalis amino acid mixed solution, purifying, then preparing the N-fatty acyl group amino acid sodium from the silkworm chrysalis mixed amino acid and fatty acyl chloride through a Schotten-Baumann synthetic method. The biodegradable amino acid anion surfactant synthesized by the method has excellent surface activity and strong decontamination, and can be widely used in shower gel, shampoo paste, facial cleanser, beard paste and the like.

Description

technical field [0001] The invention relates to a technology for preparing N-fatty acyl amino acid type surfactant completely using silkworm chrysalis, a by-product of silk processing, as a synthetic raw material. The invention also relates to the technical fields of regeneration and utilization of silkworm chrysalis resources and applied chemistry. Background technique [0002] Surfactants are an important class of chemical products with a wide range of applications and a large demand. With the development of science and technology and the enhancement of environmental awareness, people's pursuit of the quality of various products is gradually improving. Therefore, environmentally friendly and functional surfactant products have gradually been valued and favored. [0003] N-fatty acyl amino acid surfactant is a class of fatty acid and amino acid as raw materials prepared by chemical method, because of its superior biocompatibility and easy degradability, it has been obtaine...

Claims

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Application Information

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IPC IPC(8): C07C233/47C07C231/12B01F17/28C09K23/28
Inventor 张雨青伍敏晖万良泽
Owner 广东聚龙精细化工有限公司
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