公开(公告)号：EP0855932A1

公开(公告)日：1998-08-05

申请号：EP96932081.0

申请日：1996-09-12

申请人： INSTITUUT VOOR AGROTECHNOLOGISCH ONDERZOEK (ATO-DLO)

发明人： CUPERUS, Folkert, P.-Inst. Agrotech. Onderzoek ,  VAN LANGERAK, B. S. - Inst. Agrotech. Onderzoek ,  DERKSEN, J. T. P. - Instituut Agrotech. Onderzoek ,  VAN GEMERT, Robert, W. - Inst. Agrotec. Onderzoek

IPC分类号： B01D61 ,  B01D71

CPC分类号： B01D71/024 ,  B01D61/362 ,  B01D67/0048 ,  B01D67/0083 ,  B01D71/02 ,  B01D2323/08 ,  B01D2325/04

摘要： The invention relates to the use of a membrane comprising a porous support and a separating top layer from a ceramic oxide for separating liquid mixtures on the basis of pervaporation and/or pressure traction. Moreover, the invention relates to a tubular membrane comprising a tubular structure from a porous material, which structure comprises, on the inside thereof, a ceramic separating layer. Finally, the invention relates to a method for manufacturing a tubular pervaporation or pressure traction membrane, comprising flowing a sol which comprises chain-shaped silicon compounds through a porous tubular support, under such conditions that from the sol, a layer of gel is formed on the inside of the support, followed by calcining and sintering at a temperature ranging between 300 and 500 °C for 1-10 hours.