Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multi-channel kaolin plate ceramic membrane support, preparation method and application thereof
The invention discloses a multi-channel kaolin plate ceramic membrane support, a preparation method and an application thereof. The preparation method includes the following steps: 1) mixing a kaolin ceramic aggregate, a pore forming agent, a dispersing agent and a gel-casting adhesive, ball-milling the mixture, adding RO water, heating the mixture to 40-85 DEG C and ball-milling the mixture for 4-20 h to obtain slurry; 2) maintaining the temperature of the slurry to be 40-85 DEG C, vacuum-defoaming the slurry, injecting the slurry into a moulding die, and performing in-situ moulding at 0-40 DEG C to obtain a wet blank; 3) demoulding the wet blank, shade-drying the wet blank at room temperature, drying the wet blank at 40-100 DEG C, and sintering the blank in air at 1000-1500 DEG C for 1-4 h with temperature maintained to obtain the multi-channel kaolin plate ceramic membrane support. The preparation method is carried out through the gel-casting process so that the method is wide in available range, is low in cost and is easy to control in processes. The blank body is high in strength, is low in organic substance content, can be sintered directly and is good in performance uniformity. The multi-channel kaolin plate ceramic membrane support has high total porosity and filtering flux, and is toxic-free and environment-friendly.
Multi-channel kaolin plate ceramic membrane support, preparation method and application thereof
The invention discloses a multi-channel kaolin plate ceramic membrane support, a preparation method and an application thereof. The preparation method includes the following steps: 1) mixing a kaolin ceramic aggregate, a pore forming agent, a dispersing agent and a gel-casting adhesive, ball-milling the mixture, adding RO water, heating the mixture to 40-85 DEG C and ball-milling the mixture for 4-20 h to obtain slurry; 2) maintaining the temperature of the slurry to be 40-85 DEG C, vacuum-defoaming the slurry, injecting the slurry into a moulding die, and performing in-situ moulding at 0-40 DEG C to obtain a wet blank; 3) demoulding the wet blank, shade-drying the wet blank at room temperature, drying the wet blank at 40-100 DEG C, and sintering the blank in air at 1000-1500 DEG C for 1-4 h with temperature maintained to obtain the multi-channel kaolin plate ceramic membrane support. The preparation method is carried out through the gel-casting process so that the method is wide in available range, is low in cost and is easy to control in processes. The blank body is high in strength, is low in organic substance content, can be sintered directly and is good in performance uniformity. The multi-channel kaolin plate ceramic membrane support has high total porosity and filtering flux, and is toxic-free and environment-friendly.
Multi-channel kaolin plate ceramic membrane support, preparation method and application thereof
QIU ZHUGUO (Autor:in) / WENG ZHILONG (Autor:in) / HONG YUBIN (Autor:in) / LAN WEIGUANG (Autor:in)
13.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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