| 摘要 |
1477130 Filter element COMMISSARIAT A L'ENERGIE ATOMIQUE 11 Feb 1972 [16 Feb 1971] 6624/72 Heading BID A porous tubular element comprising an outer coarse-textured layer and an inner finetextured layer is made by coating a rigid core with a layer of the fine-textured material and placing the coated core inside a tube made from the coarse-textured material and an organic binder, compressing the tube on to the core, decompressing so that the finetextured layer is attached to the inside of the coarse-textured tube, withdrawing the core, and baking the assembly. In an example, an element is made from alumina of different particle sizes using a cellulose ester binder. The element may be used as a filter or a catalyst support. |
