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

A modification method of sulfonic acid-based cation exchange resin and a method for preparing methyl tert-amyl ether

A technology of ion exchange resin and sulfonic acid group cation, applied in the direction of adding unsaturated compounds to prepare ether, ether preparation, chemical instruments and methods, etc. Achieve the effect of improving specific surface, improving stability and reducing loss rate

Active Publication Date: 2020-03-17
CHINA PETROLEUM & CHEM CORP +1
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are mainly reflected in: ①The stability of the resin catalyst is poor. When the temperature rises (greater than 373.15K), the sulfonic acid group is easy to fall off, causing the catalyst to be deactivated, corroding the equipment and polluting the product; ②As the temperature rises High, the selectivity of the resin catalyst becomes poor, the side reactions of oligomerization increase, and the by-products increase; ③ In order to improve the conversion rate of olefins and suppress side reactions in industry, a higher alcohol-ene ratio is often used, resulting in the need for higher energy consumption. Realize the recycling of alcohol

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
  • A modification method of sulfonic acid-based cation exchange resin and a method for preparing methyl tert-amyl ether
  • A modification method of sulfonic acid-based cation exchange resin and a method for preparing methyl tert-amyl ether
  • A modification method of sulfonic acid-based cation exchange resin and a method for preparing methyl tert-amyl ether

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Modification of D72 type strong acid cation exchange resin (purchased from Dandong Mingzhu Special Resin Co., Ltd.): place D72 type strong acid cation exchange resin in isopropanol solvent, and the volume ratio of isopropanol to D72 type strong acid cation exchange resin is 3 : 1, Soak at 50°C for 24h, and then pass nitrogen gas in three stages, the first stage is at a pressure of 0.5MPa, temperature 60°C, and the flow rate of nitrogen gas is 1m 3 / h; the conditions for feeding nitrogen in the second stage are pressure 0.8MPa, temperature 80°C, nitrogen flow rate 3m 3 / h; the conditions for feeding nitrogen in the third stage are pressure 1.2MPa; temperature 100°C, nitrogen flow rate 6m 3 / h, the processing time of the three stages are 10 h, 16 h, 24 h respectively.

Embodiment 2

[0049] Except that isopropanol was replaced by ethanol, other conditions were the same as in Example 1, and the D72 type strong acid cation exchange resin catalyst was modified.

Embodiment 3

[0051] Except that isopropanol was replaced by methanol, other conditions were the same as in Example 1, and the D72 type strong acid cation exchange resin catalyst was modified.

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 method for modifying a sulfonic cation exchange resin, and a methyl tert-amyl ether preparation method. According to the present invention, a sulfonic cation exchange resin is soaked in a low-carbon alcohol solvent, and the soaked sulfonic cation exchange resin is subjected to gas stripping treatment with an inert gas, such that the specific surface area and the pore sizestructure of the resin are improved, and the stability and the selectivity of the sulfonic cation exchange resin catalyst are improved; and with the application of the modified resin as the catalystin the preparation of methyl tert-amyl ether at a temperature of 80-160 DEG C under a pressure of 0.1-3.0 MPa by using C5 olefin and methanol as raw materials, the continuous production can be achieved, the advantages of high conversion rate, good stability and the like can be provided, and the method is the new environmentally friendly process.

Description

technical field [0001] The invention relates to a modification method of a sulfonic acid-based cation exchange resin and a method for preparing methyl tert-amyl ether by using the modified cation exchange resin as a catalyst. [0002] technical background [0003] With the development of human society, countries around the world have paid more and more attention to environmental protection. In order to reduce the pollution of automobile exhaust, the demand for unleaded, oxygen-containing, and high-octane gasoline has soared. Especially in 1990, the United States promulgated the Clean Air Law Amendment Since CAA, in order to meet the requirements of environmental protection, refineries in various countries have vigorously developed reformulated gasoline. [0004] Methyl tert-amyl ether (TAME) (oxidative octane number RON is 105, engine octane number MON is 100) is another after methyl tert-butyl ether (MTBE) (RON is 117, MON is 102) Ideal oxygenate for the production of unlea...

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): B01J31/10C07C41/06C07C43/04
Inventor 霍稳周邓玉媛刘野李花伊张宝国
Owner CHINA PETROLEUM & CHEM CORP
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