Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Environment protection type starch-base surfactant and its preparing process

A technology of surfactants and production methods, applied in chemical instruments and methods, dissolution, chemical/physical processes, etc., can solve problems such as low product quality and long production cycle, and achieve good compatibility, fast reaction speed, and color easy effect

Inactive Publication Date: 2005-12-28
梁万君 +2
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the 4th issue of "Daily Chemical Industry" in 1989, Xu Changqing's article "Research and Development of Starch-based Surfactants" introduced the production method of starch-based surfactants, but there were shortcomings such as long production cycle and low product quality.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Add 5 kg of starch into a 20 liter reactor, add 10 kg of butanol, 0.05 kg of catalyst (a compound system made of p-toluenesulfonic acid and rare earth chloride according to 8:2), replace the air with nitrogen, and heat up to 150 ℃, the system pressure is 6Kg / cm 2 . As the reaction proceeds, the system pressure drops, and the reaction time is 2 hours, and the pressure drops to 2Kg / cm 2 And stable, the temperature was lowered to 70°C, and 1 / 3 was released for use (hereinafter referred to as intermediate).

[0013] Then add 2.5 kilograms of oleic acid monoethanolamide in the reactor. Vacuumize and react under stirring, the butanol is continuously distilled out, the temperature of the system rises, when the temperature rises to 150 ° C, the constant temperature reaction, the vacuum degree is not less than 0.09 MPa, the reaction is 3 hours, when the butanol no longer flows out, Raise the temperature to 200°C, vacuum degree 0.09987 MPa, remove excess oleic acid monoethanol...

Embodiment 2

[0016] Add 5 kg of starch into a 20 liter reactor, add 10 kg of butanol, 0.05 kg of catalyst (a compound system made of p-toluenesulfonic acid and rare earth chloride according to 8:2), replace the air with nitrogen, and heat up to 150 ℃, the system pressure is 6Kg / cm 2 . As the reaction proceeds, the system pressure drops, and the reaction time is 2 hours, and the pressure drops to 2Kg / cm 2 And stable, the temperature was lowered to 70°C, and 1 / 3 was released for use (hereinafter referred to as intermediate).

[0017] Then add 2.5 kilograms of C12-14 fatty alcohol in the reactor. Vacuumize and react under stirring, the butanol is continuously distilled out, the temperature of the system rises, when the temperature rises to 150 ° C, the constant temperature reaction, the vacuum degree is not less than 0.09 MPa, the reaction is 3 hours, when the butanol no longer flows out, Raise the temperature to 200°C, vacuum 0.09987 MPa, remove excess C12-14 alcohol for 1 hour, cool down...

Embodiment 3

[0020] Add 5 kg of starch into a 20 liter reactor, add 10 kg of butanol, 0.05 kg of catalyst (a compound system made of p-toluenesulfonic acid and rare earth chloride according to 8:2), replace the air with nitrogen, and heat up to 150 ℃, the system pressure is 6Kg / cm 2 . As the reaction proceeds, the system pressure drops, and the reaction time is 2 hours, and the pressure drops to 2Kg / cm 2 And stable, the temperature was lowered to 70°C, and 1 / 3 was released for use (hereinafter referred to as intermediate).

[0021] Then add 2.5 kilograms of coconut oil monoethanolamides in the reactor. Vacuumize and react under stirring, the butanol is continuously distilled out, the temperature of the system rises, when the temperature rises to 150 ° C, the constant temperature reaction, the vacuum degree is not less than 0.09 MPa, the reaction is 3 hours, when the butanol no longer flows out, Raise the temperature to 200°C, vacuum degree 0.09987 MPa, remove excess coconut oil monoetha...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a starch-based environment-friendly surfactant and a production method thereof, belonging to the field of surfactants. The present invention adopts high temperature and high pressure during the alcoholysis of butanol and starch into butyl glucoside, so that the reaction speed is fast, and the system materials are prevented from contacting with air, so that the color of the product is easily guaranteed. During the reaction, adding butyl glucoside twice makes the amount of residual alcohol in the final product greatly reduced, which can reach less than 0.5%. The alkyl glucoside produced by the method of the invention has the advantages of high surface activity, rich and delicate foam, low stimulation to human body, and the like.

Description

technical field [0001] The invention relates to a starch-based environment-friendly surfactant and a production method thereof, belonging to the field of surfactants. technical background [0002] Alkyl glucoside (APG) is a new type of degradable green surfactant with renewable starch resources as raw material. The more attention is paid, many domestic units have carried out some synthetic research. In recent years, some patents and articles on the use of carbohydrates to produce surfactants have been published at home and abroad. In the 4th issue of "Daily Chemical Industry" in 1989, Xu Changqing's article "Research and Development of Starch-based Surfactants" introduced the production method of starch-based surfactants, but there were shortcomings such as long production cycle and low product quality. Contents of the invention [0003] The purpose of the present invention is to prepare starch-based environment-friendly surfactant by utilizing cheap and abundant renewab...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09K23/52
Inventor 张连墨
Owner 梁万君
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com