Porous bodies with enhanced pore architecture
AssigneeScientific Design Company, Inc.
InventorWojciech L. Suchanek
Life of this patent
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Abstract
A porous body is provided with enhanced fluid transport properties that is capable of performing or facilitating separations, or performing reactions and/or providing areas for such separations or reactions to take place. The porous body includes at least 80 percent alpha alumina and has a pore volume from 0.3 mL/g to 1.2 mL/g and a surface area from 0.3 m2/g to 3.0 m2/g. The porous body further includes a pore architecture that provides at least one of a tortuosity of 7.0 or less, a constriction of 4.0 or less and a permeability of 30 mdarcys or greater. The porous body can be used in a wide variety of applications such as, for example, as a filter, as a membrane or as a catalyst carrier.
Claims6
A method for producing a porous body, the method comprising:
- providing a precursor mixture comprising (i) milled alpha alumina powder having a particle size of 0.1 to 6 microns, (ii) a non-silicate binder, and (iii) a principle burnout material having a particle size of 1-10 microns;
- forming a predetermined shape;
- and
- subjecting the shape to a heat treatment step in which the shape is sintered to produce the porous body.
Dependencies are inferred from the claim text.