Method for producing ethylene carbonate

A technology of ethylene carbonate and ethylene oxide, applied in the field of ethylene oxide and carbon dioxide production of ethylene carbonate, can solve the problems of low activity of heterogeneous catalysts, and achieve the effect of good technical effect

Active Publication Date: 2018-04-17
CHINA PETROLEUM & CHEM CORP +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that there is a problem of low activit

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

Example Embodiment

[0017] [Example 1]

[0018] Preparation of phosphoaluminoxy APO: Dissolve 58.8g aluminum nitrate and 22.3g diammonium hydrogen phosphate in 500ml deionized water at room temperature, stir for 1h, add 10ml concentrated nitric acid to acidify, continue to add concentrated ammonia water to adjust the pH to 8 , The formed precipitate was filtered, washed with deionized water three times and dried at 120°C overnight, and then dried and roasted at 500°C to obtain phosphoaluminoxy APO-1. The content of Al in APO-1 was determined by ICP-AES Take Al 2 O 3 Calculated as 40%, P content is P 2 O 5 Counted as 60%.

Example Embodiment

[0019] [Example 2]

[0020] The preparation steps of phosphoaluminoxy APO are the same as [Example 1], except that the amounts of aluminum nitrate and diammonium hydrogen phosphate used are 14.7g and 33.5g, respectively, to obtain phosphoaluminoxy APO-2, which is determined by ICP-AES. -2 The content of Al in Al 2 O 3 Calculated as 10%, P content is P 2 O 5 Counted as 90%.

Example Embodiment

[0021] [Example 3]

[0022] The preparation steps of phosphoaluminoxy APO are the same as [Example 1], except that the amounts of aluminum nitrate and diammonium hydrogen phosphate used are 36.8g and 27.9g, respectively, to obtain phosphoaluminoxy APO-3, which is determined by ICP-AES. -3 The content of Al in Al 2 O 3 Calculated as 25%, P content is P 2 O 5 Counted as 75%.

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 a method for producing ethylene carbonate and mainly solves the problem of low activity of a heterogeneous catalyst in the prior art. The problem is better solved by means ofthe technical scheme as follows: the method comprises the following steps: ethylene oxide and carbon dioxide are contacted with a catalyst under the reaction condition, wherein the catalyst is prepared from 1wt%-30wt% of alkali metal on the basis of M2O and 70wt%-99wt% of aluminum phosphorus oxide carriers APO. The method can be applied to industrial production of preparation of ethylene carbonatefrom ethylene oxide and carbon dioxide.

Description

technical field [0001] The present invention relates to a kind of method of producing ethylene carbonate, especially a kind of method of producing ethylene carbonate with ethylene oxide and carbon dioxide. Background technique [0002] Ethylene carbonate is an excellent solvent and fine chemical intermediate, and a potential basic raw material for organic chemical industry. At the same time, CO 2 Is a greenhouse gas, how to effectively fix has become one of the most challenging issues in this century. And through ethylene oxide and CO 2 Reactive synthesis of ethylene carbonate is one of the good fixation methods. With the recent increasing attention to the co-production of dimethyl carbonate and ethylene glycol using ethylene carbonate as a raw material, the fixation of CO by cyclic carbonate 2 approach has also received increasing attention. [0003] The heterogeneous catalysts reported so far for the production of cyclic carbonates include MgO, MgO / Al 2 o 3 And Cs / K...

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
IPC IPC(8): C07D317/38B01J27/18
CPCB01J27/1806C07D317/38
Inventor 陈梁锋何文军戈军伟
Owner CHINA PETROLEUM & CHEM CORP
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