Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Preparation method of O3/H2O2 catalyst using activated bentonite as carrier, catalyst and application thereof

A technology for activating bentonite and catalysts, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc. Difficulty and other problems, to achieve large-scale industrial production, prevent secondary pollution, and reduce operating costs.

Active Publication Date: 2016-01-13
GUANGDONG PROVINCIAL ACADEMY OF ENVIRONMENTAL SCI +1
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this liquid catalyst can improve the O 3 / H 2 o 2 Oxidation ability of the system, but there are shortcomings such as the catalyst cannot be reused, it is easy to cause secondary pollution, and the difficulty of subsequent treatment is increased.

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
  • Preparation method of O3/H2O2 catalyst using activated bentonite as carrier, catalyst and application thereof
  • Preparation method of O3/H2O2 catalyst using activated bentonite as carrier, catalyst and application thereof
  • Preparation method of O3/H2O2 catalyst using activated bentonite as carrier, catalyst and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Add 5mol / L nitric acid solution into bentonite, and control the mass ratio of nitric acid solution to bentonite at 1:200; stir and react at 80°C for 6h, then let stand for 4h, then filter, wash until neutral, and dry at 150°C for 2h , roasted at 800°C for 5 hours, ground and sieved 200 meshes to obtain activated bentonite; take part of activated bentonite, and prepare spherical raw material cores with a particle size of 2.5mm through a sugar coating preparation machine; take another part of activated bentonite, add quantitative Mn(NO 3 ) 2 , Fe(NO 3 ) 3 、Al 2 (SO 4 ) 3 , Cu(NO 3 ) 2 Mix evenly in the metal ion solution, the mass ratio of the four salts is 2:5:2:1, the mass fraction of the metal ion solution is 30%, and the mass ratio of the activated bentonite to the metal ion solution is 20:1. Stir at 80°C for 6 hours and let it stand for 10 hours to obtain the activated bentonite loaded with metal ions; after mixing the spherical raw material core with the acti...

Embodiment 2

[0035] Add 10mol / L sulfuric acid solution into bentonite, and control the mass ratio of sulfuric acid solution to bentonite at 1:500; stir and react at 50°C for 8h, then let stand for 5h, then filter, wash until neutral, and dry at 160°C for 1h , roasted at 1000°C for 4 hours, ground and sieved 250 meshes to obtain activated bentonite; take part of activated bentonite, and prepare spherical raw material cores with a particle size of 1mm through a sugar coating preparation machine; take another part of activated bentonite, add quantitative MnSO 4 , Fe 2 (SO 4 ) 3 、Al 2 (SO 4 ) 3 、CuSO 4 Mix evenly in the metal ion solution, the mass ratio of the four salts is 2:5:2:1, the mass fraction of the metal ion solution is 5%, and the mass ratio of the activated bentonite to the metal ion solution is 10:1. Stir at 50°C for 8 hours and let stand for 12 hours to obtain the activated bentonite loaded with metal ions; after mixing the spherical raw material core with the activated ben...

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

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method of an O3 / H2O2 catalyst using activated bentonite as a carrier, the catalyst prepared by means of the preparation method and application thereof. The activated bentonite is used as the carrier, and a part of the carrier is impregnated in a metal salt solution and then is loaded on the other unimpregnated part of the carrier to obtain the catalyst through drying and calcination. The catalyst obtained by means of the method is suitable for catalytic O3 / H2O2 oxidation water treatment and is suitable for large-scale production, and the manufacturing cost and operation cost are somewhat reduced.

Description

technical field [0001] The invention relates to the field of water treatment catalysts, in particular to an O catalyst with activated bentonite as a carrier 3 / H 2 o 2 The preparation method of the catalyst, the catalyst prepared by the method and its application. Background technique [0002] The Fenton method (Fenton method) and the ozone oxidation method are the most mature advanced oxidation processes in industrialization at present, but the Fenton method has strict requirements on pH, the chroma of the effluent will increase and a large amount of chemical sludge will be generated; in the ozone oxidation method, the oxidation of ozone The ability is not as good as that of hydroxyl radicals, and the oxidation products are generally small organic molecules of monoaldehyde, dialdehyde, aldehyde acid, monocarboxylic acid, and dicarboxylic acid, which are difficult to completely mineralize, although they can be mineralized by adding Fe 3+ , Mn 2+ Enhanced ozone oxidation,...

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): B01J23/889C02F1/78C02F1/72
Inventor 杨佘维黄志华汪永红李朝晖叶向东王开演黄振雄
Owner GUANGDONG PROVINCIAL ACADEMY OF ENVIRONMENTAL SCI
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
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