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

Preparation method of medium-chain polyglycerol fatty acid ester

A medium-carbon chain fatty acid and polyglycerol ester technology, which is applied in fatty acid preparation/refining, fatty acid esterification, fatty acid production, etc. It can solve problems such as low carbon chain fatty acid content, high energy consumption and production costs, and difficult separation of catalysts , to achieve the effect of good dispersion, less emission and easy separation

Inactive Publication Date: 2013-07-31
NANCHANG UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the industrial synthesis of polyglycerol esters of medium-carbon chain fatty acids mainly uses coconut oil and palm kernel oil as raw materials, and is prepared by hydrolysis, cracking, esterification or alcoholysis. Low chain fatty acid content, difficult separation of catalysts, large acid-base salt discharge, large equipment investment, high energy consumption and production costs, etc.

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

[0023] (1) Degumming and hydrolyzing camphor tree seed oil.

[0024] Weigh 200g of camphor tree seed oil into a 1000ml beaker (degumming reactor), stir and heat to 65±2°C, then add 0.4g of phosphoric acid (concentration: 85%) of 0.20% of oil weight and 10% of oil weight while stirring 20g of water at 65±2°C, continue stirring for 25 minutes, then stop stirring, let stand for 20 minutes, and then centrifuge. Put the degummed camphor tree seed oil into a 1000ml beaker (hydrolysis reactor), stir and heat to 75±2°C, then add sodium hydroxide solution (20% concentration) while stirring until saponification is complete, then stir Add hydrochloric acid solution (concentration: 36%) to fully acidify, after static separation, wash with water at 75±2°C until the washing liquid is neutral. After that, enter the rotary evaporator (vacuum dehydrator) and dehydrate for 40 minutes at a temperature of 75±2°C and a corresponding vacuum degree to obtain 172.5 g of medium-carbon chain fatty aci...

Embodiment 2

[0032] (1) Degumming and hydrolyzing camphor tree seed oil.

[0033] Weigh 200g of camphor tree seed kernel oil into a 1000ml beaker (degumming reactor), stir and heat to 70±2°C, add 0.3g of phosphoric acid (concentration: 85%) of 0.15% of oil weight and 10% of oil weight while stirring 20g of water at 70±2°C, continue stirring for 20 minutes, then stop stirring, let stand for 15 minutes, and then centrifuge. Put the degummed camphor tree seed oil into a 1000ml beaker (hydrolysis reactor), stir and heat to 80±2°C, add sodium hydroxide solution (15% concentration) while stirring until saponification is complete, and then stir Add hydrochloric acid solution (concentration: 36%) to fully acidify, after static separation, wash with water at 80±2°C until the washing liquid is neutral. After that, enter the rotary evaporator (vacuum dehydrator) and dehydrate for 35 minutes at a temperature of 80±2°C and a corresponding vacuum degree to obtain 175.3 g of medium-carbon chain fatty ac...

Embodiment 3

[0041] (1) Degumming and hydrolyzing camphor tree seed oil.

[0042] Weigh 200g of camphor tree seed kernel oil into a 1000ml beaker (degumming reactor), stir and heat to 75±2°C, add 0.3g of phosphoric acid (concentration: 80%) of 0.15% of oil weight and 15% of oil weight while stirring 30g of water at 75±2°C, continue stirring for 15 minutes, then stop stirring, let stand for 10 minutes, and then centrifuge. Put the degummed camphor tree seed oil into a 1000ml beaker (hydrolysis reactor), stir and heat to 85±2°C, then add sodium hydroxide solution (20% concentration) while stirring until saponification is complete, then stir while stirring Add hydrochloric acid solution (concentration: 36%) to fully acidify, after static separation, wash with 85±2°C water until the washing liquid is neutral. After that, enter the rotary evaporator (vacuum dehydrator) and dehydrate for 30 minutes at a temperature of 85±2°C and a corresponding vacuum degree to obtain 174.7 g of medium-carbon c...

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
melting pointaaaaaaaaaa
degree of polymerizationaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of medium-chain polyglycerol fatty acid ester. The method uses camphor tree seed oil as a raw material and comprises the following steps: hydrolyzing the degummed and dewatered camphor tree seed oil, and performing saponification and acidification treatment; placing the separated medium-chain fatty acid ester and different polymerization degrees of polyglycerol in an esterification reactor, then adding a defined amount of a solid base KOH / Al2O3 catalyst, injecting nitrogen for protection, and heating and stirring to perform an esterification reaction; adding the obtained medium-chain polyglycerol fatty acid ester in a deacidification reactor for reacting to obtain medium-chain polyglycerol fatty acid ester of which yield is 95%; and placing thedeacidified medium-chain polyglycerol fatty acid ester in a dewatering decolorizer to obtain medium-chain polyglycerol fatty acid ester of which yield is 98%. According to the invention, the solid base KOH / Al2O3 catalyst is used as the esterification catalyst to synthesize medium-chain polyglycerol fatty acid ester, the solid base catalyst is easy in separation and can be reused, the solid waste emission is low and the green synthesis of polyglycerol ester is realized.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, in particular to a preparation method of polyglycerol ester food additives. Background technique [0002] Fatty acid polyglycerides, also known as polyglyceryl fatty acid esters (polyglyceryl fatty acid ester, PGFE), referred to as polyglycerol esters, are polyol-type nonionic surfactants, containing hydrophilic groups and lipophilic groups, with hydrophilic Water and lipophilic dual characteristics. Compared with monoglycerides of fatty acids (abbreviated as monoglycerides, monoglyceride, MG), polyglycerol fatty acid esters contain more hydrophilic hydroxyl groups, stronger hydrophilicity, good dispersion in water, emulsification, dispersion, moistening, stability, and Bubble performance is better. By changing the degree of polymerization of polyglycerol raw materials, the type of fatty acid raw materials and the degree of esterification of the product, polyglycerol ester products wi...

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): C11C3/00C11C3/02C11C1/04C11B3/00C11B3/06C11B3/10
Inventor 曾哲录
Owner NANCHANG UNIV
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