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Method for preparing novel carbon pottery composite adsorption material

A composite adsorption material, carbon-ceramic technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of specific surface area, small benzene absorption value of total pore volume, unfavorable carbon pore structure, etc., and achieve good adsorption performance. Conducive to product yield and performance, the effect of reducing activation temperature

Inactive Publication Date: 2008-08-06
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the firing temperature of Patent No. 93102811.6 is relatively high, which is 1100-1280°C, and the firing time is 16-26 hours. Due to the high temperature and long time, it is not conducive to the development of carbon pore structure, so although it uses activated carbon as raw material , but its prepared specific surface area, total pore volume, and benzene absorption value are all small

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 A kind of preparation method of carbon-ceramic composite adsorption material comprises the following steps:

[0023] 1. Put the sawdust in a temperature-programmed furnace for carbonization at 400°C for 1 hour, and crush it to 0.105mm-0.074mm to obtain charcoal powder for later use;

[0024] 2. Wash the red loam with water to 0.15mm-0.074mm, and get the adobe for use, and the moisture content is controlled at 30%;

[0025] 3. Use sodium carboxymethyl cellulose as the adhesive, and mix it with water to form a glue solution with a mass fraction of 3% for later use;

[0026] 4. Mix the charcoal powder, red soil adobe, and glue in a ratio of 66:48:74 by weight, knead evenly with a kneader, and then extrude it into a 5cm long and 0.3cm diameter with a molding extruder. Cylindrical strips are dried in a tunnel drying kiln at 100°C;

[0027] 5. Place the dried strips in a temperature-programmed furnace, heat them from room temperature to 900°C for 4 hours, and a...

Embodiment 2

[0029] Embodiment 2 A kind of preparation method of carbon pottery composite adsorption material, comprises the following steps:

[0030] 1. Put the fruit shell in a temperature-programmed furnace for carbonization at 500°C for 3 hours, and crush it to 0.105-0.074mm to obtain charcoal powder for later use;

[0031] 2. Washing the kaolin with water to 0.15 mm to 0.074 mm to obtain a kaolin adobe for use, and the moisture content is controlled at 30%.

[0032] 3. Use carboxymethyl cellulose and ethyl cellulose as adhesives, mix them with water to form a glue with a mass fraction of 1.5% for later use;

[0033] 4. Mix the charcoal powder, kaolin clay, and glue in a ratio of 80:30:100 by weight, knead evenly with a kneader, and then extrude it into a 3cm long and 0.7cm diameter with a molding extruder. Cylindrical strips are dried in a tunnel drying kiln at 50°C;

[0034] 5. Place the dried strips in a temperature-programmed furnace, heat from room temperature to 950°C for 6 hou...

Embodiment 3

[0036] Embodiment 3 A preparation method of carbon ceramic composite adsorption material, comprising the following steps:

[0037] 1. Put the sawdust in a temperature-programmed furnace for carbonization at 600°C for 4 hours, and crush it to 0.105-0.074mm to obtain carbon powder for later use;

[0038] 2. Wash the bentonite with water to 0.15 mm to 0.074 mm to obtain a bentonite billet for use, and the moisture content is controlled at 20%.

[0039] 3. Use sodium carboxymethyl starch and hydroxypropyl methylcellulose as adhesives, mix them with water to form a glue solution with a mass fraction of 8% for later use;

[0040]4. Mix the carbon powder, bentonite clay, and glue in a ratio of 50:63:60 by weight, knead evenly with a kneader, and then extrude it into a 4cm long and 0.5cm diameter with a molding extruder. Cylindrical strips are dried in a tunnel drying kiln at 80°C;

[0041] 5. Place the dried strips in a temperature-programmed furnace, heat them from room temperatur...

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Abstract

The invention relates to a preparation method for a novel carbon pottery composite absorption material, comprising raw material preparation, kneading and forming, drying, high temperature activation and post treatment. By adopting a coke burning process to replace the present burning ceramic technology to prepare carbon pottery, the preparation method for a novel carbon pottery composite absorption material shortens the process period greatly as the temperature rising rate is improved and the activation temperature is reduced, thus being good for transforming the charcoal into activated carbon as well as for improving the yield and performance of the product and reducing the cost simultaneously. The prepared novel carbon pottery complex absorption material also has the advantages of water resistance, no spontaneous combustion, high intensity and large specific surface area.

Description

technical field [0001] The invention relates to a preparation method of an adsorption material, in particular to a preparation method of a novel carbon-ceramic composite adsorption material. Background technique [0002] Activated carbon is widely used in gas adsorption, separation, purification, liquid purification, solute enrichment and other fields. With the expansion of the application field and the harsh application environment, higher and higher requirements are put forward for activated carbon, such as: large specific surface area, high strength, wear resistance, water resistance, difficult spontaneous combustion, and even water resistance under high temperature conditions. The carbon-ceramic composite adsorption material has a large geometric contact area and the strength required for use. It has very excellent dynamic performance and difficult spontaneous combustion characteristics, avoiding the disadvantages of reducing the adsorption efficiency and easy spontaneo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30
Inventor 黄彪林冠烽陈学榕江茂生杨建华李月清
Owner FUJIAN AGRI & FORESTRY UNIV
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