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

Cu2O/MgO catalyst and preparation method thereof

A catalyst and dehydrogenation technology, applied in the direction of physical/chemical process catalysts, carbon-based compound preparation, chemical instruments and methods, etc., can solve the problems of complex preparation process, many reaction raw materials, poor mechanical strength, etc., and achieve single raw material, high Cyclohexanol conversion, cyclohexanone selectivity, and low cost effect

Inactive Publication Date: 2012-07-04
SHANGHAI UNIV OF ENG SCI
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Currently about Cu 2 The preparation process of the O / MgO catalyst is almost prepared by the impregnation-liquid phase reduction method, and there are many reaction raw materials involved, the preparation process is complicated, and Cu 2 O crystal phase is not easy to control, poor mechanical strength and other defects, and the sample prepared by high temperature thermal decomposition method, the active component can be effectively dispersed on the surface of the carrier and the binding force is good, the active component is not easy to agglomerate, and the dispersion is more uniform, etc. advantage

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

[0029] Weigh 10g of heavy MgO, put it into a muffle furnace, and bake it at 400°C for 3h as the pretreatment of the carrier;

[0030] Weigh 0.89g of copper nitrate, dissolve it in 50mL of water, pour it into the pretreated MgO carrier, soak it for 24h, and dry it in an oven at 120°C for 24 hours;

[0031] Then the above product was calcined at 450°C for 3h to obtain a supported intermediate supported by MgO;

[0032] Put the calcined loaded intermediate in a tube furnace, control the temperature of the furnace at 1000°C, pass 200mL / min of high-purity nitrogen gas into the high-temperature treatment for 6 hours, and cool to room temperature in nitrogen to obtain nano-Cu 2 O / MgO catalyst.

[0033] Among them, the weight ratio of each component is

[0034] Nano-Cu 2 O 5%

[0035] MgO balance;

[0036] The prepared sample was analyzed and tested by XRD testing technology to obtain: Cu 2 The single crystal grain size of O is about 30nm, and the crystal phase on the sample is ...

Embodiment 2

[0039] Weigh 10g of light MgO, put it into a muffle furnace, and bake it at 500°C for 5h as the pretreatment of the carrier;

[0040] Weigh 3.49g of copper acetate, dissolve it in 120mL of water, pour it into the pretreated light MgO, soak it for 20h, and dry it in an oven at 120°C for 24 hours;

[0041] Then the above product was calcined at 500°C for 5h to obtain MgO as a carrier-loaded intermediate;

[0042] Put the calcined loaded intermediate in a tube furnace, control the temperature of the furnace at 1300°C, pass 300mL / min of high-purity nitrogen gas into the high-temperature treatment for 8 hours, and cool to room temperature in nitrogen to obtain nano-Cu 2 O / MgO catalyst.

[0043] Among them, the weight ratio of each component is

[0044] Nano-Cu 2 O 20%

[0045] MgO balance;

[0046] The prepared sample was analyzed and tested by XRD testing technology to obtain: Cu 2 The single crystal grain size of O is about 16nm, and the crystal phase on the sample is only ...

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 provides a Cu2O / MgO catalyst used for cyclohexanol dehydrogenation to synthesize cyclohexanone, and a preparation method of the catalyst. The catalyst contains the following components by weight percentage: Cu2O nanoparticles 1 to 50%, and MgO carrier in balance. The Cu2O / MgO catalyst provided by the technical scheme of the invention only contains Cu2O and MgO carrier, so that Cu2O particles with a nano-scale size have good dispersity on the carrier surface. The test shows that the Cu2O / MgO catalyst has higher cyclohexanol conversion rate and cyclohexanone selectivity when being used in cyclohexanol dehydrogenation to synthesize cyclohexanone.

Description

technical field [0001] The present invention relates to a kind of Cu used for synthesizing cyclohexanone by cyclohexanol dehydrogenation 2 O / MgO catalyst and its preparation method. Background technique [0002] Cyclohexanone is an important organic chemical raw material. It is the main intermediate in the production of caprolactam (the raw material of nylon-6) and adipic acid (the raw material of nylon-66). In addition, cyclohexanone is also widely used as an organic solvent , synthetic rubber and industrial coatings, etc., is an important product of the chemical industry. [0003] The production methods of cyclohexanone mainly include phenol hydrogenation, cyclohexanol dehydrogenation and cyclohexanol oxidation. Because the process of preparing phenol is relatively complicated and phenol is highly toxic, the method of producing cyclohexanone from phenol is basically no longer used. There are generally two methods for preparing cyclohexanone from cyclohexanol: one is the...

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): B01J23/72C07C49/403C07C45/51
Inventor 王远强王丹丹陈莹刘梦南黄小雄
Owner SHANGHAI UNIV OF ENG SCI
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