Preparation method of activated carbon and alumina composite material

A composite material and alumina technology, which is applied in the field of preparation of activated carbon and alumina composite materials, can solve the problems of low strength, high recycling cost, short service life, etc., and achieve low strength, low cost and simple preparation method easy effect

Active Publication Date: 2012-10-10
大同市贵义炭素有限公司
View PDF5 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the continuous improvement of people's demand and quality requirements for activated carbon, activated carbon also shows many shortcomings, such as low strength, most of the products a

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

[0017] A kind of preparation method of activated carbon and alumina composite material, comprises the following steps: (1) measure and weigh 94.0g of phenol, 162.2g of 37% formaldehyde solution, mix the two, at 80 o Stir at C to dissolve all the phenol.

[0018] (2) Add 23.4g of aluminum hydroxide to the solution treated in step (1), at 80 o The reaction was heated at C for 2 hours, and a certain amount of sulfuric acid solution was added to neutralize the reaction to stop, cooled to room temperature and dehydrated under reduced pressure to a water content of 20%.

[0019] (3) Take 20ml of the liquid mixture obtained in step (2), add 2ml of dichloromethane as a foaming agent, add 3ml of sulfuric acid as a curing agent, and stir rapidly, at 80 o C foaming and aging for a period of time to obtain a foam.

[0020] (4) Cut the foam body obtained in step (3) into a certain shape, put it into a heating furnace at 400 o C carbonization 1h, at 600 o Activation at C for 1 h an...

Embodiment 2

[0022] A kind of preparation method of activated carbon and alumina composite material, comprises the following steps: (1) measure and weigh 94.0g of phenol, 162.2g of 37% formaldehyde solution, mix the two, at 80 o Stir at C to dissolve all the phenol.

[0023] (2) Add 23.4g of aluminum hydroxide to the solution treated in step (1), at 80 o The reaction was heated at C for 2 hours, and a certain amount of sulfuric acid solution was added to neutralize the reaction to stop, cooled to room temperature and dehydrated under reduced pressure to a water content of 20%.

[0024] (3) Take 20ml of the liquid mixture obtained in step (2), add 2ml of dichloromethane as a foaming agent, add 3ml of sulfuric acid as a curing agent, and stir rapidly, at 80 o C foaming and aging for a period of time to obtain a foam.

[0025] (4) Cut the foam body obtained in step (3) into a certain shape, put it into a heating furnace at 430 o C carbonization 1h, at 600 o Activation at C for 1 h an...

Embodiment 3

[0027] A kind of preparation method of activated carbon and alumina composite material, comprises the following steps: (1) measure and weigh 94.0g of phenol, 162.2g of 37% formaldehyde solution, mix the two, at 80 o Stir at C to dissolve all the phenol.

[0028] (2) Add 23.4g of aluminum hydroxide to the solution treated in step (1), at 80 o The reaction was heated at C for 2 hours, and a certain amount of sulfuric acid solution was added to neutralize the reaction to stop, cooled to room temperature and dehydrated under reduced pressure to a water content of 20%.

[0029] (3) Take 20ml of the liquid mixture obtained in step (2), add 4ml of dichloromethane as a foaming agent, add 3ml of sulfuric acid as a curing agent, and stir rapidly, at 80 o C foaming and aging for a period of time to obtain a foam.

[0030] (4) Cut the foam body obtained in step (3) into a certain shape, put it into a heating furnace at 400 o C carbonization 1h, at 600 o Activation at C for 1 h an...

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
Iodine adsorption valueaaaaaaaaaa
Average pore sizeaaaaaaaaaa
Iodine adsorption valueaaaaaaaaaa
Login to view more

Abstract

The invention provides a preparation method of an activated carbon and alumina composite material, which comprises following steps: phenol and formalin are mixed in proportion, heated and stirred, so as to enable the phenol to be completely dissolved; aluminum hydroxide is added to an obtained processed solution to react, and then an acid solution is added to the processed solution to neutralize the processed solution, so that the reaction is stopped; the mixed solution is cooled to room temperature, decompressed and dehydrated, so as to obtain a liquid mixture; a foaming agent and a curing agent are added to the liquid mixture, and the liquid mixture is rapidly stirred, foamed and cured, so as to obtain a foam body; and the foam body is cut into a certain shape, put into a heating furnace to be carbonized and activated, and then the activated carbon and alumina composite material can be obtained. By adopting the preparation method, two materials, namely activated carbon and alumina can be tightly combined together, and the prepared activated carbon is firmly and evenly fixed in the activated alumina, so that the deficiencies of low strength and short service life of the activated carbon are corrected; and the preparation method is simple and practicable, requires low cost and is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a novel functional material and composite material, in particular to a preparation method of activated carbon and alumina composite material. Background technique [0002] As a carbonaceous material with graphite microcrystalline structure, developed pores and strong adsorption capacity, activated carbon has been widely used in separation, purification, catalyst, reagent recovery and other fields, especially in pollution control. However, with the continuous improvement of people's demand and quality requirements for activated carbon, activated carbon also shows many shortcomings, such as low strength, most of the products are powdery and granular, low specific surface area, short service life, and high recycling costs. It cannot meet the needs of the development of modern society and has become the focus of the industry. Activated alumina is a porous and highly dispersed solid material with high crushing strength, moderate sp...

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): B01J20/20B01J20/30
Inventor 刘磊张旺玺王艳芝孙国平
Owner 大同市贵义炭素有限公司
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap