Kieselxerogel und seine Herstellung
Silica xerogels having narrow pore diameter distribution in the range of 300-600 A. and surface areas in the range of from 200-500 m.2/g., and process for preparing such silica xerogels comprising critically controlled steps of precipitation of the silica gel, heat aging the precipitated silica hydr...
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| creator | KIRCH,WILLIAM AARON ABOUTBOUL,HENRI HERMAN KREKELER,JEROME CINCINNATI,OHIO |
| description | Silica xerogels having narrow pore diameter distribution in the range of 300-600 A. and surface areas in the range of from 200-500 m.2/g., and process for preparing such silica xerogels comprising critically controlled steps of precipitation of the silica gel, heat aging the precipitated silica hydrogel slurry, washing the aged product with solutions of salts having a displacing effect on sodium, disintegrating the gel, displacing the water, drying the gel and calcining. |
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| subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON COMPOUNDS THEREOF INORGANIC CHEMISTRY MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY NON-METALLIC ELEMENTS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Kieselxerogel und seine Herstellung |
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