Process for the preparation of nanocrystalline hydrotalcite compounds
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United States of America Patent
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Issued Date -
Jun 25, 2009
app pub date -
Dec 12, 2008
filing date -
Dec 13, 2007
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Abandoned
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Abstract
The present invention relates to a process for the preparation of nanocrystalline hydrotalcite compounds comprising the steps: introduction of one or more starting compounds into a reaction chamber by means of a carrier fluid, subjecting the starting compound(s) in a treatment zone to a pulsating thermal treatment at a temperature of 250 to 400° C., formation of nanocrystalline metal-oxide particles, discharging of the nanocrystalline hydrotalcite particles from the reactor, wherein the starting compound(s) are introduced into the reaction chamber in the form of a solution, slurry, suspension or in solid aggregate state, and a nanocrystalline hydrotalcite material obtainable by the process according to the invention and its use as an adsorption and catalyst material.
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