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Adsorption material and preparation method thereof

A technology of adsorption materials and ceramic materials, applied in chemical instruments and methods, other chemical processes, alkali metal oxides/hydroxides, etc.

Inactive Publication Date: 2014-08-06
JINAN SHENGQUAN GROUP SHARE HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no such product in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Dry the lignin, and mix it evenly with the phosphoric acid solution with a mass fraction of 70% in a weight ratio of 1:2. The mixture is kept at 80°C for 8 hours, and then ceramic preparation materials are added (burnt gem: clay: talc = 3:1: 1) Add according to the mass ratio of lignin and ceramic preparation material at 1:1. After stirring the mixture evenly, apply it on the polyurethane disposable mold, dry the preform at 150°C for 3 hours, put it into the activation furnace at 450°C for 60 minutes, wash it with water after cooling until the pH value is 5-7, The rinsed product is put into an oven and baked at 150° C. to a constant weight to obtain a high-performance lignin ceramic matrix adsorption material. After testing: the compressive strength is 1.5MPa, the iodine adsorption value reaches 300mg / g, the maximum removal rate of formaldehyde is 40%, the benzene adsorption value is 10%, and the yield rate is 48%.

Embodiment 2

[0040] Dry the lignin, and mix it evenly with the aluminum dihydrogen phosphate solution with a mass fraction of 10% in a weight ratio of 1:2, and add ceramic preparation materials accounting for 20% of the lignin mass (clay: burnt gem = 1: 4). Stir the mixture evenly, apply it on a disposable polyurethane mold, dry at 150°C for 3 hours, and finally put it into an activation furnace and activate it at 900°C for 40 minutes under a water vapor atmosphere. After cooling, wash it with water until the pH value is 5~ 7. Put the rinsed product into an oven and bake it at 150° C. to a constant weight to obtain a lignin ceramic matrix adsorption material. After testing: the compressive strength is 2.5MPa, the iodine adsorption value reaches 420mg / g, the maximum removal rate of formaldehyde is 48%, the benzene adsorption value is 13%, and the yield rate is 40%.

Embodiment 3

[0042] Dry the lignin, mix it with 10% aluminum dihydrogen phosphate solution in a weight ratio of 1:1.5, and then apply the mixture to a disposable polyurethane mold to obtain a preform. Dry and activate the preform at 150°C for 3 hours, and finally put it into an activation furnace to activate at 850°C for 30 minutes, wash with water after cooling until the pH value is 5-7, put the rinsed activated carbon into an oven and dry at 150°C to constant weight, the adsorption material can be obtained. After testing: the compressive strength is 1.2MPa, the iodine adsorption value reaches 556mg / g, the maximum removal rate of formaldehyde is 42%, the benzene adsorption value is 16%, and the yield rate is 50%.

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Abstract

The invention provides an adsorption material. The adsorption material is a preform obtained by attaching lignin to a disposable mold through charring. Products obtained in the invention adopt active carbon as a main body material, have a certain mechanical strength, and unlikely fragment when the products bear a pressure.

Description

technical field [0001] The invention relates to an inorganic material and a preparation method thereof, in particular to an adsorption material and a preparation method thereof. Background technique [0002] Activated carbon is a kind of material with developed pore structure, huge specific surface area and strong adsorption capacity prepared from carbonaceous materials such as wood, fruit shell and coal. It is widely used in environmental protection, national defense, chemical industry, food, medicine, textile and other fields. Applications are increasingly widespread. In recent years, the shortage of coal and sawdust resources has become increasingly serious. Therefore, it is an important task for the development of my country's and the world's activated carbon industry to continuously develop raw materials for activated carbon production, explore new process conditions, and increase new varieties. Aiming at the shortage of wood resources as raw materials for traditional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30
Inventor 唐一林江成真刘晓敏焦峰李枝芳刘敬浩时锋
Owner JINAN SHENGQUAN GROUP SHARE HLDG