Supercharge Your Innovation With Domain-Expert AI Agents!

Method for preparing high-purity sebacic acid

A technology for producing sebacic acid monosodium salt and sebacic acid, which is applied in the field of high-purity sebacic acid preparation, and can solve the problems of ineffective reduction of sebacic acid monoacid content and complicated operation

Active Publication Date: 2021-09-07
FENGYI FINE CHEM LIANYUNGANG
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method is complicated to operate and cannot effectively reduce the monoacid content in sebacic acid

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing high-purity sebacic acid
  • Method for preparing high-purity sebacic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] A thicker sebacate sodium salt solution was taken 1000 ml, with a single fatty acid (sodium) content of 2.50%, and 0.71% of dodecylic acid content. The pH was adjusted to 6.5, and the control temperature was 80 ° C, and the resin column was filled with a resin column in the resin column. The single sodium salt solution passes through the resin column at a rate of 2 BV / hour. The sodium salt solution after adsorption was collected, and the sebacalic acid finished was obtained by the same process as blank experiment, and the total content of single fatty acid was 0.63%, and the dodecyclic acid content was 0.72%.

Embodiment 2

[0086]The crude sebacate is 500 ml of the crude sebacate, wherein the single fatty acid (sodium) content is 2.50% relative to the sebacalic acid content, and the pH is adjusted to 6.2, the control temperature is 70 ° C, and the resin is adsorbed by the porestone styrene. The column, the resin column is filled with 10 g of the resin. The single sodium salt solution passes through the rate of 1 BV / hr. After collecting the adsorption, a sodium salt solution was collected, and the sebacalic acid finished product was obtained by the same process as blank experiment, and the total content of single fatty acid was 0.32%, and the dodecyclic acid content was 0.70%.

Embodiment 3

[0088] 300 ml of a thickened sodium sodium salt solution, wherein the single fatty acid (sodium) content was 2.50% relative to the sebacalic acid content, and the pH was adjusted to 5.6, and the control temperature was 70 ° C, and the resin column was adsorbed by the sputum styrene. 10G resin is filled in the resin column. The single sodium salt solution passes through the resin column at a rate of 2 BV / hour. The sodium salt solution after adsorption was collected, and the sebacaric acid finished was obtained by the same process as blank experiment, and the total content of single fatty acid was 0.15%, and the dodecyllate was 0.69%.

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 provides a method for reducing the content of monofatty acid in a sebacic acid product and a method for preparing high-purity sebacic acid by a castor oil cracking method. The method particularly comprises the step of adsorbing a crude sebacic acid monosodium salt aqueous solution through a resin column, the resin column comprisesnonionic adsorption resin, preferably, nonionic macroporous adsorption resin, and more preferably, macroporous styrene resin. The sebacic acid prepared according to the method of the invention is very high in purity, and particularly, the total content of monofatty acids in the sebacic acid can be reduced to 1 wt% or below, such as 0.5 wt% or even 0.2 wt% or below.

Description

Technical field [0001] The present invention relates to the field of preparation of sebacic acid, in particular the field of castoric acid lysis, and more particularly to a preparation method of high purity sebacic acid. Background technique [0002] A series of polymerized products, such as high-quality plasticizers, binders, and electrical fluids in electronic capacitive industries, such as high-quality plasticizers, binders, and electronic capacitive industries, etc .; quality indicators such as grayps There is a high demand, and the current industrial sebacic acid cannot reach its quality requirements. Therefore, it is necessary to purify and purify the process, resulting in refined sebacic acid to meet the quality requirements of the above-mentioned industries. [0003] Currently, research on industrial manufacturing sebacic acid methods at home and abroad is very active. Such as high temperature alkali corks; castor oil cracking method; nitrate oxide oxide and cycloalkol me...

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): C07C55/20C07C51/02C07C51/47B01J20/26
CPCC07C51/02C07C51/47C07C55/20C07C51/00B01J20/26B01J20/261
Inventor 苏永胜崔兵刘普根
Owner FENGYI FINE CHEM LIANYUNGANG
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com