Titandioxidsubstrate und deren Herstellung.

摘要

The invention features porous substrates or supports (10) fabricated from titania powder(s) having mean particle size of at least 7 mu m. The titania substrates are useful for supporting porous membranes for separation and filtration processes. The titania powders provide supports with mean pore sizes in the approximate range of 3 to 15 mu m, a sharp or narrow pore size distribution, total Hg porosities of at least about 30%, and MOR strengths of 50 up to 280 or more Kg/cm<2>. A combination of several different titania powders produced the best results. Titania membranes can be formed on the titania supports.