Production of aluminum compound
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United States of America Patent
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Aug 29, 1995
Issued Date -
N/A
app pub date -
Jan 9, 1990
filing date -
Sep 22, 1983
priority date (Note) -
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Abstract
A method of manufacture including bringing seed and aluminum hydroxide together in an aqueous medium and hydrothermally digesting for producing boehmite at the expense of the aluminum hydroxide is described. Also disclosed is a process for forming a ceramic body from colloidal boehmite and alpha alumina. Alpha alumina is added to ultimately produce a seeded gel containing microcrystalline boehmite, the seeded gel capable of being sintered at a low temperature to produce a ceramic product. The colloidal boehmite may be purified by ion exchange to remove alkali metal ions.
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