Methods for removing catalyst after oxidation of hydrocarbons
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United States of America Patent
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Nov 7, 2000
Issued Date -
N/A
app pub date -
Mar 12, 1999
filing date -
Jun 24, 1996
priority date (Note) -
Expired
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Abstract
This invention relates to methods for controlling the oxidation of hydrocarbons to intermediate oxidation products, such as adipic acid for example, by removing the catalyst from the reaction mixture, outside the reaction zone, after the oxidation has taken place at least partially. The catalyst is at least partially precipitated by reducing the water level in the reaction mixture and subjecting the reaction mixture to a temperature, at which or over which catalyst precipitates.
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