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2. 发明公开

EP1985598A1 PROCESS FOR PRODUCING CERAMIC POROUS MEMBRANE 有权
标题翻译： VERFAHREN ZUR HERSTELLUNG EINERPORÖSENKERAMIKMEMBRAN
公开(公告)号：EP1985598A1
公开(公告)日：2008-10-29
申请号：EP07714019.2
申请日：2007-02-09
申请人： NGK INSULATORS, LTD.
发明人： TANAKA, Kei
IPC分类号： C04B41/85
CPC分类号： C04B41/87 , B01D63/066 , B01D67/0048 , B01D69/04 , B01D69/046 , B01D71/024 , B01D71/027 , B01D2323/42 , C04B35/46 , C04B35/624 , C04B41/009 , C04B41/4537 , C04B2111/00801 , C04B41/4515 , C04B41/457 , C04B41/4582 , C04B41/5041 , C04B41/5035 , C04B35/10 , C04B35/00 , C04B35/185 , C04B35/48 , C04B38/00
摘要： There is disclosed a method of manufacturing a ceramic porous membrane in which a uniform porous membrane having less coarse and large pores and less defects and having a small membrane thickness can be obtained with less membrane formation times. There is disclosed a method of manufacturing a ceramic porous membrane in which a ceramic porous membrane is formed on inner wall surfaces of through holes of a cylindrical or lotus root-like porous base member. A porous base member 1 is installed so as to arrange the through holes of the base member in a vertical direction, a ceramic sol liquid 5 having a temperature difference of 50°C or less between the ceramic sol liquid and the porous base member 1 is supplied to the inner wall surface of the porous base member 1, the liquid supply is stopped at a stage where the ceramic sol liquid 5 is in excess of an upper end portion of the porous base member 1, and the ceramic sol liquid 5 is extracted from the downside of the porous base member 1. Subsequently, after the ceramic sol liquid 5 is completely extracted, a pressure difference is created so that a pressure on the side of an outer peripheral surface of the porous base member 1 is lower than that on the side of the inner wall surface of the porous base member 1.
摘要翻译：公开了一种制造陶瓷多孔膜的方法，其中可以获得具有较少的粗孔和较大的孔以及较少的缺陷并且具有较小的膜厚度的均匀的多孔膜，而较少的膜形成时间。公开了一种制造陶瓷多孔膜的方法，其中陶瓷多孔膜形成在圆柱形或莲藕状多孔基材的通孔的内壁表面上。安装多孔基材1以使基材的通孔沿垂直方向布置，陶瓷溶胶液和多孔基材1之间的温差为50℃以下的陶瓷溶胶液5为供给到多孔基材1的内壁面，在陶瓷溶胶液5超过多孔性基材1的上端部的阶段停止液体供给，并且提取陶瓷溶胶液5 接着，在陶瓷溶胶液5完全抽出之后，产生压力差，使得多孔基材1的外周面的压力低于多孔基材1的外周面的压力多孔基材1的内壁表面的一侧。

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