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

Diethyltoluenediamine synthesized alumina matrix catalyst loaded with active metal components and application

A technology of diethyltoluene diamine and active metals, which is applied in the field of diethyltoluene diamine synthesis of alumina matrix catalysts, can solve the problems of low impurity content, catalyst service life, catalyst deactivation, and high reaction impurity content. Achieve high reaction yield and catalyst service life

Active Publication Date: 2018-10-09
东营海瑞宝新材料有限公司
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that the reaction impurity content of the catalyst is high and the catalyst is easily deactivated in the catalytic synthesis process of diethyltoluenediamine, and proposes a catalyst based on a flaky alumina carrier with Ce and W as active sites. The catalytic reaction process has the advantages of high reactivity, low impurity content and long service life of the catalyst

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
  • Diethyltoluenediamine synthesized alumina matrix catalyst loaded with active metal components and application
  • Diethyltoluenediamine synthesized alumina matrix catalyst loaded with active metal components and application
  • Diethyltoluenediamine synthesized alumina matrix catalyst loaded with active metal components and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation of the synthetic catalyst of embodiment 1 diethyltoluenediamine

[0031] Step 1, preparation of carrier: Al 2 o 3 Slowly add to 72 ℃ NaOH aqueous solution, the concentration of NaOH aqueous solution is 5.4mol / L, NaOH and Al 2 o 3 The molar ratio is 1.0:1. After the addition is complete, the solution is heated to 98 ° C and kept for 1 h to obtain NaAlO 2 solution; the NaAlO 2 After the solution was diluted 5 times with water, CO was slowly introduced into the diluted solution. 2 Response, CO per min 2 The volume ratio of the blown volume to the mixed liquid is 5:1, CO 2 Gas source pressure is 0.1MPa, CO 2 The bubbling time is 40min, CO 2 During the bubbling process, the temperature of the mixed liquid was controlled at 28 ° C. After the completion of the introduction, it was kept for 24 hours, and then the generated solid was filtered out, washed with deionized water, and dried in vacuum to obtain flaky Al(OH) 3 carrier;

[0032] Step 2, the loa...

Embodiment 2 2

[0033] The preparation of the synthetic catalyst of embodiment 2 diethyltoluenediamine

[0034] Step 1, preparation of carrier: Al 2 o 3 Slowly add to 76 ℃ NaOH aqueous solution, the concentration of NaOH aqueous solution is 6.0mol / L, NaOH and Al 2 o 3 The molar ratio is 1.5:1. After the addition is complete, the solution is heated to 100°C, and the reaction is kept for 2h to obtain NaAlO 2 solution; the NaAlO 2After the solution was diluted 6 times with water, CO was slowly introduced into the diluted solution 2 Response, CO per min 2 The volume ratio of the blown volume to the mixed liquid is 8:1, CO 2 Air source pressure is 0.15MPa, CO 2 The bubbling time is 55min, CO 2 During the bubbling process, the temperature of the mixed solution was controlled at 32 ° C. After the completion of the introduction, it was kept for 48 hours, and then the generated solid was filtered out, washed with deionized water, and dried in vacuum to obtain flaky Al(OH) 3 carrier;

[0035]...

Embodiment 3 2

[0036] The preparation of the synthetic catalyst of embodiment 3 diethyltoluenediamine

[0037] Step 1, preparation of carrier: Al 2 o 3 Slowly add to 75 ℃ NaOH aqueous solution, the concentration of NaOH aqueous solution is 5.6mol / L, NaOH and Al 2 o 3 The molar ratio is 1.2:1. After the addition is complete, the solution is heated to 99°C and kept for 1.5h to obtain NaAlO 2 solution; the NaAlO 2 After the solution was diluted 5.5 times with water, CO was slowly introduced into the diluted solution 2 Response, CO per min 2 The volume ratio of the blown volume to the mixed liquid is 7:1, CO 2 Gas source pressure is 0.12MPa, CO 2 The bubbling time is 50min, CO 2 During the bubbling process, the temperature of the mixed liquid was controlled at 30°C. After the completion of the feeding, keep it for 30h, then filter out the generated solid, wash it with deionized water, and dry it in vacuum to obtain flaky Al(OH) 3 carrier;

[0038] Step 2, the loading of the active cent...

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 diethyltoluenediamine synthesized alumina matrix catalyst loaded with active metal components and application and belongs to the technical field of fine chemical industry. Aiming at the problems of high reaction impurity content and easy catalyst deactivation of the catalyst in the catalytic synthesis process of the diethyltoluenediamine, the invention provides a catalyst based on a tabular alumina carrier, Ce and W as active sites, and the catalytic reaction process has the advantages of high reaction activity, low impurity content and long catalyst service life.

Description

technical field [0001] The invention relates to a diethyltoluenediamine catalyst for synthesizing alumina substrates loaded with active metal components and its use, belonging to the technical field of fine chemicals. Background technique [0002] Diethyltoluenediamine (English name Diethyltoluenediamine) refers to a mixture of two isomers of diethyltoluenediamine, that is, a commercial mixture of two isomers: 3,5-diethyl-2,4-di Aminotoluene (3,5-Diethyl-toluene-2,4-diamine) 76% and 3,5-Diethyl-2,6-diaminotoluene (3,5-Diethyl-toluene-2,6-diamine) 24%, referred to as DETDA. Diethyltoluene diamine is used as chain extender for reaction injection molding polyurethane, curing agent for polyurethane coating, epoxy resin and alkyd resin. Pesticides, dye intermediates, plastics, rubber, oil antioxidants. Diethyltoluene diamine is an aromatic diamine curing agent for polyurethane elastomers and epoxy resins, used for casting, coatings, adhesives, and chain extenders for polyureth...

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): B01J23/30B01J37/03B01J37/08C07C209/68C07C211/51
CPCB01J23/30B01J37/035B01J37/082C07C209/68C07C211/51
Inventor 李强姜志国王晓刚张均朱忠杰
Owner 东营海瑞宝新材料有限公司
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