Carbon-clad zirconium oxide particles
AssigneeRegents of the University of Minnesota
InventorsEric F. Funkenbusch, Peter W. Carr, Douglas A. Hanggi, Thomas P. Weber
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Abstract
Carbon-clad zirconium oxide particles are disclosed which are useful in sorbent applications, particularly as packing materials for High Performance Liquid Chromatography (HPLC). A method for the preparation of chromatographic support material is also disclosed which utilizes low pressure.
Claims6
A chromatography column selected from the group consisting of a liquid chromatography column, a gas chromatography column and a supercritical fluid chromatography column, comprising a packing consisting of a plurality of porous zirconium oxide particles having core zirconium oxide particles having pore diameters from about 20-5000 .ANG., and which have surfaces substantially covered by a carbon cladding, wherein the carbon-clad spherules have a surface area of about 5-300 m.sup.2 /g.
An adsorption apparatus selected from the group consisting of a batch adsorber, a fluidized bed adsorber and a pressure-swing adsorption apparatus, comprising an adsorptive medium consisting of a plurality of porous zirconium oxide particles having core zirconium oxide particles having a pore size from about 20-5000 .ANG., and which have surfaces substantially covered by a carbon cladding, wherein the carbon-clad spherules have a surface area of about 5-300 m.sup.2 /g.
A reactor selected from the group consisting of a fixed bed reactor, a fluidized bed reactor and a batch reactor, comprising a support material consisting of a plurality of porous zirconium oxide particles having core zirconium particles having a pore size from about 20-5000 .ANG., and which have surfaces substantially covered by a carbon cladding, wherein the carbon-clad spherules have a surface area of about 5-300 m.sup.2 /g.
Dependencies are inferred from the claim text.