Tami Deutschland Gmbh

Heike Kastner

Thomas Fleischmann

The invention relates to a method for producing a monolithic, porous, ceramic shaped body and to the shaped bodies produced according to this method. Said shaped body is used predominantly as a support material for porous, inorganic and/or organic membranes for the flow filtration of liquids and gases. The aim of the invention is to provide a method for producing a shaped body consisting substantially of TiO with an open porosity >10%, an average pore size of between 1 and 50 &mgr;m and a mechanical stability >20 N/mm . To achieve this, a first TiO -powder fraction is pre-sintered at temperatures >1200&deg; C. and subsequently ground to achieve a screening refuse of at least <5% for grain sizes of less than 100 &mgr;m, at least an additional TiO powder fraction, whose grain size is significantly smaller than that of the first powder fraction, is added to and mixed with the granulate and the mixture obtained is compressed into a shaped body which is subjected to an additional sintering process at temperatures that are >1100&deg; C. but lower than the first sintering temperature.

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Weissenborn, Germany

Heike Kastner