High surface area meixnerite from hydrotalcites
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United States of America Patent
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Jul 8, 1997
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N/A
app pub date -
Jun 7, 1995
filing date -
Jun 7, 1995
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Abstract
A method for making a synthetic meixnerite which, when activated, has a high B.E.T. surface area, typically about 290 m.sup.2 /g or greater. The method comprises activating hydrotalcite, then cooling and hydrating such activated material in a carbon dioxide-free environment. Such hydration can produce a material that absorbs more than 100% of its weight in water. Following hydration, this material is activated a second time in a virtually carbon dioxide-free environment.
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