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Preparation technology of microporous ceramic supports
A preparation technology of microporous ceramic supports comprises steps as follows: firstly, weighing mullite and cordierite, placing the mullite and the cordierite in an aqueous solution for boiling, ball-milling the mullite and the cordierite for 4 h, then performing drying and sieving to obtain mixed powder with particle sizes ranging from 150 mu m to 300 mu m, and placing the mixed powder in different containers respectively according to the particle sizes; then sequentially adding the mixed powder corresponding to particle sizes of pore-forming agents to solvents capable of resolving the mixed powder, adding cellulose sodium carboxymethyl simultaneously, and performing magnetic stirring for 1 h; then adding clay, potassium feldspar or talc, performing magnetic stirring and ultrasonic vibration, then leaving the mixture to stand for 2 h to obtain polymer solutions, placing the polymer solutions into a vacuum drying box for drying for 4 h, and cooling the polymer solutions to the room temperature to obtain polymer films; placing the polymer films into molds in the sequence from large particle sizes to small particle sizes, enabling the polymer films to form compact blanks by the aid of a press with a cold isostatic pressing method, and firing the compact blanks at the high temperature of 1100-1250 DEG C to obtain the microporous ceramic supports. The preparation technology is simple and easy to implement and convenient to operate, the production cost is low, and pore diameters and pore structures can be controlled accurately.
Preparation technology of microporous ceramic supports
A preparation technology of microporous ceramic supports comprises steps as follows: firstly, weighing mullite and cordierite, placing the mullite and the cordierite in an aqueous solution for boiling, ball-milling the mullite and the cordierite for 4 h, then performing drying and sieving to obtain mixed powder with particle sizes ranging from 150 mu m to 300 mu m, and placing the mixed powder in different containers respectively according to the particle sizes; then sequentially adding the mixed powder corresponding to particle sizes of pore-forming agents to solvents capable of resolving the mixed powder, adding cellulose sodium carboxymethyl simultaneously, and performing magnetic stirring for 1 h; then adding clay, potassium feldspar or talc, performing magnetic stirring and ultrasonic vibration, then leaving the mixture to stand for 2 h to obtain polymer solutions, placing the polymer solutions into a vacuum drying box for drying for 4 h, and cooling the polymer solutions to the room temperature to obtain polymer films; placing the polymer films into molds in the sequence from large particle sizes to small particle sizes, enabling the polymer films to form compact blanks by the aid of a press with a cold isostatic pressing method, and firing the compact blanks at the high temperature of 1100-1250 DEG C to obtain the microporous ceramic supports. The preparation technology is simple and easy to implement and convenient to operate, the production cost is low, and pore diameters and pore structures can be controlled accurately.
Preparation technology of microporous ceramic supports
ZHOU XIANGYANG (author) / XIAO MAN (author) / CHEN CHUNLIAN (author) / HUANG ZHIGANG (author) / YANG JUAN (author) / WANG HUI (author) / WEN KANG (author) / LONG BO (author)
2015-04-29
Patent
Electronic Resource
English
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