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

Solid-phase compound metal catalyst used for magnesium desulphurization technology

A metal catalyst and magnesium desulfurization technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, chemical instrument and method, etc., can solve the secondary pollution of heavy metal by-products of desulfurization and the limitation of catalyst application , Catalyst is difficult to recycle and other problems, to achieve the effect of solid phase catalytic effect, less residue, easy to recycle

Active Publication Date: 2013-09-11
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF3 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the catalysts are all added to the desulfurization slurry in the form of a solution, the operating cost of the application process is high, and the catalyst is difficult to recycle, which will also cause secondary pollution of heavy metals in the desulfurization by-products and effluent, and the application of the catalyst has been greatly affected. limits

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
  • Solid-phase compound metal catalyst used for magnesium desulphurization technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Weigh Co(NO 3 ) 2 ·6H 2 O 1.798g, Cu(NO 3 ) 2 ·3H 2 O 0.442g, Fe(NO 3 ) 3 9H 2 O 1.265g, Bi(NO 3 ) 3 ·5H 2 O 0.247g, Mn(NO 3 ) 2 0.48ml, Ni(NO 3 ) 2 ·6H 2 O 0.233g, (NH 4 ) 3 Mo 7 o 24 4H 2 O 1.994g, was dissolved in 20ml deionized water respectively at room temperature, mixed and stirred successively, evaporated to dryness in a water bath, 120 o Drying at C for 8 hours, 300 o Drying at C for 9 hours, 520 o C under the condition of roasting for 5 hours to make a solid phase catalyst.

[0019] Weigh 0.202g of the above catalyst and add it into the magnesium sulfite oxidation reactor. The volume of the reaction solution is 200ml. At this time, the catalytic reaction rate is increased by about 0.570 times compared with the non-catalytic condition.

Embodiment 2

[0021] Weigh Co(NO 3 ) 2 ·6H 2 O 1.949g, Cu(NO 3 ) 2 ·3H 2 O 0.508g, Fe(NO 3 ) 3 9H 2 O 1.951g, Bi(NO 3 ) 3 ·5H 2 O 0.203g, Mn(NO 3 ) 2 0.52ml, Ni(NO 3 ) 2 ·6H 2 O 0.226g, (NH 4 ) 3 Mo 7 o 24 4H 2 O 3.054g, was dissolved in 20ml deionized water respectively at room temperature, mixed and stirred successively, evaporated to dryness in a water bath, 120 o Drying at C for 8 hours, 300 o Drying at C for 9 hours, 480 o C under the condition of roasting for 5 hours to make a solid phase catalyst.

[0022] Weigh 0.202g of the above catalyst and add it into the magnesium sulfite oxidation reactor. The volume of the reaction solution is 200ml. At this time, the catalytic reaction rate is increased by about 0.558 times compared with the non-catalytic condition.

Embodiment 3

[0024] Weigh Co(NO 3 ) 2 ·6H 2 O 2.005g, Cu(NO 3 ) 2 ·3H 2 O 0.597g, Fe(NO 3 ) 3 9H 2 O 1.840g, Bi(NO 3 ) 3 ·5H 2 O 0.276g, Mn(NO 3 ) 2 0.49ml, Ni(NO 3 ) 2 ·6H 2 O 0.260g, (NH 4 ) 3 Mo 7 o 24 4H 2 O 2.969g, was dissolved in 20ml deionized water respectively at room temperature, mixed and stirred successively, evaporated to dryness in a water bath, 120 o Drying at C for 8 hours, 300 o Drying at C for 9 hours, 500 o C under the condition of roasting for 5 hours to make a solid phase catalyst.

[0025] Weigh 0.203g of the above catalyst and add it into the magnesium sulfite oxidation reactor. The volume of the reaction solution is 200ml. At this time, the catalytic reaction rate is increased by about 0.566 times compared with the non-catalytic condition.

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 solid-phase compound metal catalyst used for a magnesium desulphurization technology, belonging to the technical field of the preparation of compound metal catalysts. The catalyst is prepared through dissolving a divalent manganese salt, a divalent cobalt salt, a divalent copper salt, a divalent nickel salt, a trivalent iron salt and a trivalent bismuth salt in water, co-precipitating through using molybdate, drying, oven-drying, and calcining. The catalyst has the advantages of simple operation, substantial catalysis effect, realization of the increase of the system oxidation efficiency of above 50% without changing the original oxidation gas quantity, less application amount, easy recovery, less residual in the solution, and no secondary pollution problems, and has a popularization value.

Description

technical field [0001] The invention belongs to the technical field of composite metal catalyst preparation, and in particular relates to a solid-phase composite metal catalyst used for oxidation of magnesium sulfite, a by-product in a magnesium desulfurization process. The catalyst of the present invention solves the problem of fouling and clogging of the desulfurization system due to excessively high concentration of magnesium sulfite by increasing the oxidation reaction rate of magnesium sulfite, and can effectively reduce the investment and energy consumption of the oxidation system, as well as the cost caused by the use of the catalyst. Secondary pollution problem. Background technique [0002] SO 2 It is an important precursor of pollution phenomena such as acid rain and haze, and has caused great harm to my country's atmospheric environment in recent years. Magnesium desulfurization is currently a commonly used flue gas treatment process for small and medium-sized i...

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): B01J23/889
Inventor 汪黎东郭静娴李蔷薇崔帅
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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