Process for the preparation of hydrogen peroxide by the anthraquinone cyclic process
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United States of America Patent
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Jul 3, 2007
Grant Date -
Mar 31, 2005
app pub date -
Aug 6, 2004
filing date -
Aug 11, 2003
priority date (Note) -
Expired
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Abstract
The invention concerns a process for the preparation of hydrogen peroxide by the anthraquinone cyclic process. The process includes a regeneration stage in which working solution is regenerated by being brought into contact with an aqueous solution containing an alkyl anthrahydroquinone and/or an alkyl tetrahydroanthrahydroquinone in deprotonated form. The working solution regenerated in the regeneration stage is returned to the cyclic process.
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