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

Preparation method of honeycomb-like ozone oxidation catalyst and catalyst prepared through same

An ozone oxidation, honeycomb technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc. Low removal rate and other problems, to achieve the effect of not easy secondary pollution, good effect, and not easy to separate

Active Publication Date: 2016-06-22
POTEN ENVIRONMENT GRP +2
View PDF8 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the invention discloses a preparation method of a honeycomb ozone oxidation catalyst and the prepared catalyst, which are used to solve the removal rate of chemical oxygen demand (COD) of sewage by the existing metal and its oxide catalytic ozonation technology Low, the problem of high leaching of active components of the ozone oxidation catalyst

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

preparation example Construction

[0022] The invention provides a preparation method of a honeycomb ozone oxidation catalyst and the catalyst prepared therefrom. The preparation method may specifically include the following steps:

[0023] Pulverizing the iron-carbon filler to obtain powdered iron-carbon filler;

[0024] Mix the powdery iron-carbon filler with the molding agent and the binder according to the mass ratio of (6-16):(2-12):(1-4), and stir to obtain a paste mixture;

[0025] Extruding the paste mixture to obtain a honeycomb green body;

[0026] The honeycomb green body is dried and calcined to obtain a honeycomb ozone oxidation catalyst.

[0027] Iron-carbon filler is an integrated alloy formed by fusion of multiple metals and various catalysts through high-temperature melting. It has a framework microporous structure and generally contains iron, carbon and various metal catalysts. organic pollutants in sewage. The iron-carbon filler used in the present invention can be any iron-carbon filler a...

Embodiment 1

[0037] The iron-carbon filler with a particle size of 1*3 cm and a specification of LAT-TC from Shandong Longantai Environmental Protection Technology Co., Ltd. was crushed to obtain a powdered iron-carbon filler with a particle size of 0.01 mm;

[0038] Mix the powdery iron-carbon filler with the molding agent and polydipropylene dimethylamine according to the mass ratio of 16:3:1, and stir to obtain the paste mixture. The first sedimentation sludge and humus after dehydration in the molding agent The mass ratio of sludge and digested sludge is 2:5:3, and the water content is 50% of the total mass of the forming agent;

[0039] Put the paste mixture into the extrusion equipment, and after being uniformly extruded by the mold, the honeycomb embryo body is obtained by wire cutting, the hole spacing of the honeycomb embryo body is 5 mm, and the hole wall thickness is 2 mm;

[0040] The honeycomb green body was dried at 100°C for 15 hours, and then calcined in a muffle furnace at...

Embodiment 2

[0043] Wash the discarded iron-carbon filler with water for 5 times, dry it in an oven at 50°C for 24 hours, and then pulverize it into iron-carbon filler with a particle size of 3 mm, and then pulverize it to obtain a powder with a particle size of 0.08 mm iron-carbon filler;

[0044] Mix the powdery iron-carbon filler with the dehydrated chemical sludge and binder according to the mass ratio of 10:7:3, and stir to obtain a paste mixture. The water content of the dehydrated chemical sludge is 40% , the mass ratio of polydimethyldiallylammonium chloride, epoxy resin, and hydroxyethyl cellulose in the adhesive is 1:5:4;

[0045] Put the paste mixture into the extrusion equipment, and after being uniformly extruded by the mold, the honeycomb embryo body is obtained by wire cutting, the hole spacing of the honeycomb embryo body is 10 mm, and the hole wall thickness is 1 mm;

[0046] The honeycomb green body was dried at 80°C for 24 hours, and then calcined in a muffle furnace at...

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
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The embodiment of the invention discloses a preparation method of a honeycomb-like ozone oxidation catalyst and a catalyst prepared through the preparation method. The preparation method includes the steps that iron carbon filler is smashed, and powder-shaped iron carbon filler is obtained; the powder-shaped iron carbon filler, a forming agent and an adhesion agent are mixed and stirred according to the mass ratio of (6-16): (2-12): (1-4), and a paste mixture is obtained; the paste mixture is subjected to extrusion forming, and a honeycomb-like blank is obtained; the honeycomb-like blank is dried and sintered, the honeycomb-like ozone oxidation catalyst is obtained. The honeycomb-like ozone oxidation catalyst prepared through the scheme has lots of porous channel structures, the specific surface area is large, the catalytic effect is good, when the honeycomb-like ozone oxidation catalyst is adopted for catalyzing ozone to process sewage, the effects is good, the chemical oxygen demand (COD) removing rate of sewage is greatly increased, and the dissolving-out quantity of active components of the catalyst is greatly reduced.

Description

technical field [0001] The invention relates to the field of catalyst preparation, in particular to a preparation method of a cellular ozone oxidation catalyst and the prepared catalyst. Background technique [0002] Ozone is an oxidizing agent with strong oxidizing ability. After decomposing in water, it produces oxidative intermediates such as monatomic oxygen (O) and hydroxyl radical (OH) with extremely strong oxidizing ability, which react with organic and inorganic pollutants in sewage. , to achieve the purpose of deodorization, decolorization, sterilization and removal of organic matter. However, ozone is selective in the oxidation of pollutants, especially for those organic pollutants with complex chemical structures and difficult to be biodegraded, which cannot be effectively oxidized. In order to make up for this defect of ozone oxidation technology, ozone catalytic oxidation technology came into being. [0003] As an efficient, practical, and non-secondary pollut...

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): B01J23/745B01J35/10C02F1/78
CPCC02F1/78B01J23/745B01J35/61
Inventor 耿翠玉乔瑞平李璐陈广升张伦梁蒋玮
Owner POTEN ENVIRONMENT GRP
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