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

Synthetic process of organic carbonic ester

A synthesis process and technology of carbonate, applied in the direction of organic carbonate preparation, organic chemistry, etc., can solve the problems of complex production process, low production efficiency, high cost and high cost, and achieve the goal of overcoming many processes, improving conversion rate and product yield rate, improve work efficiency

Inactive Publication Date: 2016-05-11
QINGDAO SHOUTAI AGRI SCI & TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current synthesis process method of organic carbonate, the synthesis method is too single, the process flow is not easy to implement, the generated organic carbonate product has low purity, the single-pass conversion rate of reactants is low, the production process is complicated, the production efficiency is low, and the cost is high. , not suitable for mass production

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

[0010] The synthetic technique of the organic carbonate of present embodiment, comprises the following steps:

[0011] (1) The molar ratio of raw materials phenol and dimethyl carbonate is 1:2:1, the catalyst is n-Bu2SnO, and the molar ratio of phenol and n-Bu2SnO is 1:0.01:0.015;

[0012] (2) Put the raw material and the catalyst in a three-necked flask, heat and stir, the reaction temperature is 220°C, and the reaction time is 17h.

[0013] The synthesis process of organic carbonate does not require cumbersome post-reaction treatment, the process is simple and feasible, the process cost is greatly reduced, and it is environmentally friendly and pollution-free, the process flow is easy to implement, and the industrial production of the product is realized.

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 discloses a synthetic process of organic carbonic ester, which is simple and convenient to operate, high in productivity and free from corrosion. The synthetic process comprises the following steps: phenol and dimethyl carbonate are taken as raw materials; the molar ratio of phenol to dimethyl carbonate is 1:2-5:1; a catalyst adopts n-Bu2SnO; the molar ratio of phenol to n-Bu2SnO is 1:0.01-1:0.015; the raw materials and the catalyst are placed in a three-neck flask for heating and stirring; the reaction temperature is 150-220 DEG C, and the reaction time is 13-17 h.

Description

technical field [0001] The invention belongs to the technical field of chemical synthesis, and in particular relates to a synthesis process of organic carbonate. Background technique [0002] Organic carbonates are a class of chemicals with a wide range of uses, and are widely used in chemical and pharmaceutical fields. Mainly include propylene carbonate, dimethyl carbonate, diethyl carbonate, diphenyl carbonate, etc. These carbonate molecules are widely used in organic synthesis, pharmaceutical synthesis, engineering plastics, and green additives because of their active carbonyl groups , color TV picture tube cleaners and other fields, in recent years, increasingly subject to domestic and foreign research scholars of all ages. In the current synthesis process method of organic carbonate, the synthesis method is too single, the process flow is not easy to implement, the generated organic carbonate product has low purity, the single-pass conversion rate of reactants is low...

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): C07C69/96C07C68/06
Inventor 张晶
Owner QINGDAO SHOUTAI AGRI SCI & TECH CO LTD
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