Method for synthesizing hexade/octode mixing alcohol polyoxyethylene

A technology of alcohol polyoxyethylene ether and octadecyl mixed alcohol, which is applied in the preparation of ether from alkylene oxide, ether preparation, organic chemistry, etc. Effects with low requirements and mild reaction conditions

Inactive Publication Date: 2008-08-06
王伟松
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing cetyl or stearyl alcohol polyoxyethylene ethers use monoalcohols, and there are few mixed alcohol products, and their single use performance limits the scope of use

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

[0011] Add 600g of cetostearyl alcohol and 1.1g of powdered sodium methoxide into the reaction kettle, raise the temperature to 130°C, vacuum dehydrate for 1 hour, add 346g of ethylene oxide, after the reaction is complete at 150°C, cool down to 80°C and discharge .

Embodiment 2

[0013] Add 400g of cetostearyl alcohol and 1.1g of solid KOH into the reaction kettle, raise the temperature to 130°C, vacuum dehydrate for 1 hour, add 1046g of ethylene oxide, and after the reaction is complete at 150°C, cool down to 80°C and discharge.

Embodiment 3

[0015] Add the mixture of 200g cetostearyl alcohol and 1.1g powdery sodium methylate and NaOH (by 1: 1 ratio) in the reaction kettle, be warming up to 130 ℃, after vacuum dehydration 1 hour, add oxyethane 875g, in After the reaction at 150°C is complete, cool down to 80°C and discharge.

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

PropertyMeasurementUnit
hydroxyl valueaaaaaaaaaa
Login to view more

Abstract

A synthesizing method of hexadecanol / octodecanol-mixed polyoxyethylene ether belongs to the filed of synthesizing technology of organic compounds. Hexadecanol / octodecanol-mixed polyoxyethylene ether is produced through polymerization of raw materials including mixed hexadecanol / octodecanol and ethylene oxide under the existence of a catalyst. The weight proportion of the mixed hexadecanol / octodecanol and ethylene oxide is 1:0.145-18.6; the catalyst is one of or a mixture containing more than one of solid sodium methylate, methanol solution of sodium methylate, KOH, NaOH, etc, and the addition thereof is 0.05-0.2 weight percent of prepared hexadecanol / octodecanol-mixed polyoxyethylene ether. Through rational determination of technological parameters and conditions such as raw material proportion, catalyst amount, polymerization temperature and time, etc., the method of the invention can have the advantages of mild reaction condition, low equipment requirement and high product yield and, in addition, has no impurity or pollutant production. The product has light color, good appearance, wide adjustable molecular weight range and high mutual modulation effect when in mixed application with products having other properties.

Description

technical field [0001] The invention relates to a synthesis method of polyoxyethylene ether of cetearyl / octadecane mixed alcohol, which belongs to the technical field of synthesis of organic compounds. Background technique [0002] The existing cetyl or stearyl alcohol polyoxyethylene ethers use monoalcohols, and there are few mixed alcohol products, and their single performance limits the scope of use. Contents of the invention [0003] The purpose of the present invention is to provide a synthetic method of cetearyl / octadecanol polyoxyethylene ether with reasonable process and better usability. [0004] The invention is a synthesis method of cetearyl / octadecanol polyoxyethylene ether, which uses cetearyl / octadecane alcohol and ethylene oxide as raw materials, and is characterized in that it is prepared by polymerization reaction in the presence of a catalyst; The weight ratio of hexa / octadecane mixed alcohol and ethylene oxide is 1: 0.145~18.6; Described catalyst is sol...

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 Applications(China)
IPC IPC(8): C07C43/11C07C41/03
Inventor 王伟松王新荣孟照平马定连罗青
Owner 王伟松
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap