| 摘要 |
1. A membrane separator device comprising : a macroporous block (1) made of sintered ceramic material pierced by a plurality of parallel logitudinal channels (2, 3) whose surfaces are lined by membranes (4, 5), possibly consisting of two layers of organic material or of sintered ceramic material, and having a finer porosity than the block or being permeable by diffusion ; means for feeding a liquid to be purified into first ends of the channels ; means (6) for collecting purified liquid after it has passed through the channel membranes and the macroporous block to reach the outside surface thereof ; and means (7) for collecting residual liquid from the other end of the channels ; characterized in that the pores of the block is filled, beginning at their outside surface and penetrating at least part of their thickness, by a ceramic sintered microporous material (i.e., having pores of a diameter in the order of 1 mu m), such, that the maximum diameter, as measured by the bubble point method, of the liquid passageway through the block from its ends to the means for collecting the purified liquid is at maximum equal to the smaller pore diameter of the porous membranes of the channels. |
