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

Method for preparing polyhexylene 2,5-furandicarboxylate (PHF) by means of biomass

A technology of furandicarboxylic acid and hexanediol ester, which is applied in the field of preparing poly-2,5-furandicarboxylate-1,6-hexanediol ester from biomass, can solve the problems of low catalytic activity and poor selectivity, and achieve Improved stability, low cost, green and economical preparation

Active Publication Date: 2018-09-04
ZHEJIANG SCI-TECH UNIV
View PDF13 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Non-precious metal catalysts have problems such as low catalytic activity and poor selectivity.

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 polyhexylene 2,5-furandicarboxylate (PHF) by means of biomass
  • Method for preparing polyhexylene 2,5-furandicarboxylate (PHF) by means of biomass
  • Method for preparing polyhexylene 2,5-furandicarboxylate (PHF) by means of biomass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Place the round bottom flask in a constant temperature magnetic stirring water bath, weigh 1mmol of HMF and 15mmol of potassium ferrate into the round bottom flask, measure 10mL of deionized water into the beaker, stir evenly, and weigh a certain amount of NaOH , so that the molar concentration in the reaction system is 1.6mol / L, weigh a certain amount of K 2 HPO 4 , so that the molar concentration in the reaction system is 0.4mol / L. After reacting at 25°C for 15 minutes, the solution is in the form of slurry. The slurry is filtered to obtain the filtrate, and concentrated hydrochloric acid is added dropwise to the filtrate until there is a large amount of white Precipitation was formed, the obtained turbid solution was filtered, and the substance was baked in an oven at 50° C. for 24 hours to obtain a dry white product FDCA with a yield of 86.1%.

Embodiment 2

[0056] Place the round bottom flask in a constant temperature magnetic stirring water bath, weigh 1mmol of HMF and 15mmol of potassium ferrate into the round bottom flask, measure 10mL of deionized water into the beaker, stir evenly, and weigh a certain amount of NaOH , so that the molar concentration in the reaction system is 1.6mol / L, weigh a certain amount of K 2 HPO 4 , so that the molar concentration in the reaction system is 0.4mol / L, weigh a certain amount of Fe(OH) 3 cocatalyst so that its molar concentration in the reaction system is 0.001mol / L; after reacting at 25°C for 15 minutes, the solution is in the form of a slurry, and the slurry is filtered to obtain a filtrate, and concentrated hydrochloric acid is added dropwise to the filtrate until A large amount of white precipitate was formed, and the obtained turbid solution was filtered, and the material was dried in an oven at 50° C. for 24 hours, and the yield of the dry white product FDCA was 91.7%.

Embodiment 3

[0058] Place the round bottom flask in a constant temperature magnetic stirring water bath, weigh 1mmol of HMF and 15mmol of potassium ferrate into the round bottom flask, measure 10mL of deionized water into the beaker, stir evenly, and weigh a certain amount of NaOH , so that the molar concentration in the reaction system is 1.6mol / L, weigh a certain amount of K 2 HPO 4 , so that the molar concentration in the reaction system is 0.4mol / L, weigh a certain amount of MnO 2 Cocatalyst, so that the molar concentration in the reaction system is 0.001mol / L. After reacting at 25°C for 15 minutes, the solution is in the form of slurry. The slurry is filtered to obtain the filtrate, and concentrated hydrochloric acid is added dropwise to the filtrate until there is a large amount of A white precipitate was formed, and the obtained turbid solution was filtered, and the substance was dried in an oven at 50° C. for 24 hours, and the yield of the dry white product FDCA was 88.5%.

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 technologies of polyester preparation by means of biomass, and provides a method for preparing polyhexylene 2,5-furandicarboxylate (PHF) by means of biomass. The method comprises the steps that 1,6-HDO and FDCA are subjected to esterification reaction to generate oligomer, through condensation polymerization, high polymer is obtained, and through purification, a product PHF is obtained; the FDCA is obtained by using potassium ferrate as a catalyst for catalyzing an oxidized woody biomass based platform chemical compound HMF. According to the method, the FDCA and the 1,6-HDO are used as raw materials, and both the FDCA and the 1,6-HDO are environmentally friendly and come from the biomass, so that green and economic preparation of the PHF is achieved; the method hasthe advantages of being low in catalyst cost, environmentally friendly and pollution-free; the reaction system of a catalyst promoter and the potassium ferrate / sodium hydroxide / dipotassium phosphategenerates a synergistic effect, so that the yield of the FDCA is improved; butyl titanate can not only be used as a catalyst of the esterification reaction, but also be used as a catalyst of condensation polymerization, so that one-time adding in a reaction process is achieved, experimental operation is made simple, convenient and safe, and the synthesis efficiency is high.

Description

technical field [0001] The invention relates to the technology of preparing polyester from biomass, in particular to a method for preparing poly-1,6-hexanediol 2,5-furandicarboxylate by utilizing biomass. Background technique [0002] As an important part of the development of the national economy, the polyester industry's benign development will be of great significance to the sustainable and healthy development of society. Since the industrial revolution, countries around the world have used petroleum resources in large quantities. With the gradual depletion of non-renewable petroleum resources and the increasing price of the world, the traditional petroleum-based polyester industry is facing great challenges. Therefore, it is extremely important to research and develop renewable polyester materials to gradually replace traditional petroleum-based polyesters. [0003] In recent years, the research and industrialization of bio-based polyesters prepared from low-cost biomas...

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): C08G63/672C08G63/85
CPCC08G63/672C08G63/85
Inventor 张俊华谢文兴梁启迪
Owner ZHEJIANG SCI-TECH 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