Supported ionic liquid bimetallic catalyst based on yttrium and preparation method thereof

A bimetallic catalyst, ionic liquid technology, used in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of weak interaction between the carrier and active components, Problems such as poor dispersion of active components and low hydrogenation efficiency

Pending Publication Date: 2022-03-15
TIANJIN UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Supported ionic liquids are composite materials that combine ionic liquids with solid-supported materials by physical or chemical methods. For the hydrogenation reaction of anthraquinone, the existing catalysts have low hydrogenation efficiency, poor dispersion of active components, and the The weak interaction between the active components leads to problems such as the easy loss of the active components. Although the ionic liquid single metal catalyst synthesized in the previous stage shows good hydrog...

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 1-3

[0039] According to the load listed in Table 1, the meteric chloride, cerium nitrate and ionic liquid impregnation liquid are dispersed to obtain an ionic liquid-bimetallic impregnation liquid; γ-al 2 O 3 The carrier was added to the mixed impregnation liquid, stirred at 45 ° C for 1.5 h, 45 ° C, deposition for 3 h, filtered, washed into a 80 ° C oven, to obtain a load type ionic liquid bimetallic catalyst.

[0040] The catalyst is reduced to the catalyst before activity evaluation, the reduction temperature is 150 ° C, the time is 4 h, the temperature of the temperature is 5 ° C / min, the gas used is 10% h. 2 / 90% AR mixture. The ionic liquid species, load and its 15 min hydrogen efficiency evaluation results are shown in Table 2 below.

[0041] Table 1 Base-based load type ionic liquid bis metal catalyst and hydrazine hydrogenation efficiency

[0042] Example Load (wt%) Ion liquid species Hydrogen efficiency (g / L) Example 1 Pd = 0.3, y = 0.7, IL = 4 1-butyl...

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 yttrium-based supported ionic liquid bimetallic catalyst and a preparation method thereof. The catalyst comprises a catalyst carrier, and a metal palladium compound, a metal yttrium compound and an ionic liquid which are supported on the catalyst carrier. By adding the assistant metal Y, on one hand, the geometric structure and the electronic effect of the active components of the catalyst can be improved, and on the other hand, competitive adsorption on the surface of the carrier is increased, the number of isolated Pd atoms is increased, and the dispersity of the active components is improved.

Description

Technical field [0001] The present invention relates to the field of catalysts, and more particularly to a cerium-based load type ionic liquid bis metal catalyst and a preparation method thereof. Background technique [0002] The load type ionic liquid is a composite material that binds to the ionic liquid with the solid carrier material by physical or chemical method, and the existing catalyst is low, the active component dispersibility is poor, and the carrier The interaction force between the active components is weak, resulting in the loss of the active group, and the pre-synthetic ionic liquid single metal catalyst exhibits good hydrogenation performance, but for the production of high concentrations 2 O 2 (50% or more) production processes, the hydrogenation efficiency remains to be further improved. Further, although the addition of the ionic liquid, although at a certain extent, the hydrogenation efficiency and selectivity of the catalyst can be improved, but the structur...

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): B01J31/02B01J23/63C01B15/023
CPCB01J31/0281B01J23/63C01B15/023
Inventor 李韡李晓燕王福迎李晓蕾张金利
Owner TIANJIN UNIV
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