PROCESS FOR PRODUCING HIGH POROSITY BOEHMITE ALUMINAS

PROCESS FOR PRODUCING HIGH POROSITY BOEHMITE ALUMINAS

A method for producing high porosity boehmite alumina wherein an aqueous boehmite slurry is mixed with an effective amount of a modifier comprising a hydroxide or oxide of an element of group IIIA-VIA on the Periodic Table of Elements and having a pKsp of greater than 11 to produce a precursor mixtu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHAVEZ, MARK M, BARCLAY, DAVID A
Format: Patent
Sprache:eng ; fre
Schlagworte:
CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:A method for producing high porosity boehmite alumina wherein an aqueous boehmite slurry is mixed with an effective amount of a modifier comprising a hydroxide or oxide of an element of group IIIA-VIA on the Periodic Table of Elements and having a pKsp of greater than 11 to produce a precursor mixture and hydrothermally aping the precursor mixture at an elevated temperature under agitation with an effective consumptive power of greater than 1 kW/m3.