Porous titania or zirconia spheres

Catalyst – solid sorbent – or support therefor: product or process – Forming or treating a sphere – process only

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Details

502 60, 502217, 502242, 502308, 502309, 502325, 502339, 502349, 502350, 2101982, 2105021, 210656, B01J 2106, B01J 3508

Patent

active

051282917

ABSTRACT:
Porous titania or zirconia spheres having a particle diameter of about 1 to 100 microns, a pore volume of about 0.1 to 1 cc/g, and a pore diameter in the range of about 10 to 5,000 Angstrom units are made by spray drying a slurry of ultimate titania or zirconia particles having a diameter about equal to that of the desired pore diameter of the formed sphere, and a reactive binder. The spheres can be used in high performance liquid chromatography columns and as catalyst supports.

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patent: 4677084 (1987-06-01), Bergna
patent: 4948773 (1990-08-01), Ito
Edward A. Pfannkoch, Barbara S. Switzer and William Kopachiewicz "Aluminum Ion Mediated Stabilization of Silica-Based Anonion-Exchange Packings to Caustic Regenerants", Journal of Chromatography, 503, (1990), 385-401.
R. M. Chicz, Z. Shi and F. E. Regnier "Preparation and Evaluation of Inorganic Anion-Exchange Sorbents Not Based on Silica", Journal of Chromatography, 359 (1986) 121-130.

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