Sodium zirconium carbonate and zirconium basic carbonate and methods of making the same
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United States of America Patent
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Sep 30, 2003
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app pub date -
Nov 28, 2000
filing date -
Nov 28, 2000
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Abstract
A method of making sodium zirconium carbonate is described which involves forming a mixture of zirconium oxychloride with soda ash and then heating at a sufficient temperature and for a sufficient time to form the sodium zirconium carbonate. Subsequent washing and filtration steps can further form parts of this process. A novel sodium zirconium carbonate is further described which contains from about 2 wt % to about 5 wt % Na.sup.+ ; from about 44 wt % to about 50 wt % ZrO.sub.2 ; from about 12 wt % to about 18 wt % CO.sub.3.sup.2- ; and from about 32 wt % to about 35 wt % H.sub.2 O.
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