Large pore volume composite mineral oxide beads, their...

Details Large pore volume composite mineral oxide beads, their... Large pore volume composite mineral oxide beads, their...

B - Operations, Transporting

01

J

B01J 20/06 (2006.01) B01D 15/08 (2006.01) B01J 20/08 (2006.01) B01J 20/32 (2006.01)

Patent

CA 2327301

The present invention provides porous mineral oxide beads which have large pore volumes and enhanced stability. The beads are based on a tetravalent metal oxide, such as zirconia, titania or hafnia. These highly porous beads are produced from a mixture of tetravalent mineral oxides, mineral pore inducing agents which are oxides or salts of trivalent metals, and optional binders. The porous mineral beads can be filled with a polymer gel and used for adsorption and chromatography applications.

La présente invention concerne des billes poreuses d'oxydes minéraux possédant des pores à gros volumes et manifestant une stabilité améliorée. Ces billes sont basées sur des oxydes de métaux tétravalents tels que la zircone, l'anhydride titanique ou l'oxyde d'hafnium. Ces billes hautement poreuses sont produites à partir d'un mélange d'oxydes minéraux tétravalents, d'agents créant des pores minéraux se présentant comme des oxydes ou des sels de métaux trivalents et éventuellement de liants. Les billes minérales poreuses peuvent être utilisées dans des applications liées à l'adsorption et à la chromatographie.

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