Methods and apparatus for removing catalyst from oxidation reactor effluent
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United States of America Patent
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Jan 3, 2006
Grant Date -
Jul 31, 2003
app pub date -
Dec 5, 2002
filing date -
Jun 1, 2000
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Abstract
Methods and apparatus for removing a catalyst from a reaction mixture formed by reacting a hydrocarbon or an oxygenated hydrocarbon with an oxidant in the presence of the catalyst in a reactor, in which the reaction mixture contains one or more dibasic acids. The catalyst is removed by adding water and/or cooling the reaction mixture to cause phase separation, recycling the polar phase to the reactor, and transferring the less-polar phase to an ion exchange unit to remove catalyst contained therein.
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