Preparation of granulated alkaline earth metal carbonate
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United States of America Patent
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Nov 22, 1994
Grant Date -
N/A
app pub date -
Mar 11, 1993
filing date -
Mar 13, 1992
priority date (Note) -
Expired
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Abstract
A method for preparing granulated alkaline earth metal carbonate, particularly barium carbonate or strontium carbonate, by adding a binding agent and optionally water; granulating the resulting mixture, preferably in the presence of water; drying the granular product; and optionally subjecting the granular product to a high-temperature treatment, in which the material to be granulated and the granulated material do not contact any inorganic refractory material during the granulation, during subsequent drying, and during any high-temperature treatment.
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