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

A low-temperature selective oxidation catalyst for converting acrolein into acrylic acid and its application

A technology for selective oxidation and acrolein, which is applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, preparation of organic compounds, etc. It can solve problems such as catalyst deactivation and achieve anti-fever temperature Strong, mild and stable response, wide operating window

Active Publication Date: 2017-06-30
CHINA PETROLEUM & CHEM CORP +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sb 2 o 3 Oxygen overflow is often considered to increase the yield by adding it, but it has not attracted attention to the fact that its addition also makes the catalyst more likely to be deactivated due to overtemperature

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 low-temperature selective oxidation catalyst for converting acrolein into acrylic acid and its application
  • A low-temperature selective oxidation catalyst for converting acrolein into acrylic acid and its application
  • A low-temperature selective oxidation catalyst for converting acrolein into acrylic acid and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: preparation of composite oxide

[0027] In a 20L five-neck flask, put 10L of distilled water, then put a certain amount of copper nitrate, nickel nitrate, ammonium metavanadate, ammonium molybdate, strontium nitrate, and magnesium nitrate into it and stir to form a slurry state, and then the mixed solution is dried by pumping it into a spray dryer, the inlet temperature of the spray dryer is 200°C, and the outlet is not lower than 80°C. The obtained dry powder was ground in a ball mill for 2 hours to obtain a fine powder, shaped on an extruder, and then calcined at 320° C. for 6 hours. The active component is Mo 12 V 3 Nb 0.5 Cu 0.4 Ni 0.8 Sb 48 Mg 0.1 o x , labeled Catalyst 1 # .

Embodiment 2

[0028] Embodiment 2: preparation of composite oxide

[0029] Other is with embodiment 1, makes Mo 12 V 3 Nb 0.5 Cu 0.4 Ni 0.8 Sb 120 Mg 0.1 o x , labeled Catalyst 2 # .

Embodiment 3

[0030] Embodiment 3: preparation of composite oxide

[0031]Other is with embodiment 1, makes Mo 12 V 3 Nb 0.5 Cu 0.4 Ni 0.8 Sb 240 Mg 0.1 o x , labeled Catalyst 3 # .

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 low-temperature selective oxidation catalyst for converting acrolein into acrylic acid and its application. The catalyst is loaded nano-Au loaded on a composite oxide, and the reaction materials are gas-phase acrolein material, nitrogen and oxidant. Hydrogen oxidation is carried out at a lower reaction temperature of 160-220°C. The beneficial effect of the invention is that the reaction is mild and stable, the operation window is wide, and the reaction can be carried out at 160-220°C, which is far lower than that of the prior art at 240-300°C.

Description

technical field [0001] The invention relates to a low-temperature selective oxidation catalyst for converting acrolein into acrylic acid and its application, in particular to a catalyst using H 2 o 2 To enhance the oxidant, use high Sb 2 o 3 Content-supported nano-Au solid catalyst technology. Background technique [0002] Acrylic acid is one of the important derivatives of propylene, and its esterification products are widely used in coatings, superabsorbent resins, flocculants and washing aids, etc. There are three existing acrylic acid processes, that is, the petroleum route that has been used industrially for more than 40 years, such as the selective oxidation of propylene, the route of low-carbon alkanes, namely the selective oxidation of propane, and the route of biomass glycerol. [0003] The existing industrial acrylate process includes three steps: 1) two-step oxidation of acrolein to acrylic acid by propylene oxidation, using Mo-Bi catalyst, and the reaction te...

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): B01J23/89B01J23/887C07C51/285C07C51/235C07C57/055
Inventor 王育刘小波戴伟马天石彭晖刘海江
Owner CHINA PETROLEUM & CHEM CORP
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com