Production of spongy ceramic material

Details Production of spongy ceramic material Production of spongy ceramic material

C - Chemistry, Metallurgy

04

B

25/125, 252/39

C04B 35/10 (2006.01) B01D 53/86 (2006.01) B01J 35/04 (2006.01) B01J 37/00 (2006.01) C04B 38/06 (2006.01)

Patent

CA 1039480

PRODUCTION OF SPONGY CERAMIC MATERIAL ABSTRACT OF THE DISCLOSURE: Spongy ceramic material supporting exhaust gas decontamination catalysts is produced. Loosely aggre- gated polystyrene spheroids are joined together across their contact surface to a spheroskeleton having hollow spaces which are filled with an aqueous suspension of ceramic material. More particularly, use is made of hollow foamed polystyrene spheroids which are connect- ed together to a sphero-skeleton by plasticizing their surface areas. The hollow spaces inside the spheroske- leton are filled with the aqueous suspension of cera- mic material and the skeleton is dried at 20 - 95°C. The dry material is freed from the polystyrene spheroids and the ceramic skeleton is calcined at 1000- 1500°C.

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