Method of producing activated clay for treating aromatic hydrocarbons
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United States of America Patent
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Sep 19, 2000
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N/A
app pub date -
Dec 21, 1998
filing date -
Dec 25, 1997
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Abstract
The present invention provides an activated clay for refining aromatic hydrocarbons such as BTX (benzene, toluene, xylene), etc., satisfying the requirements of both excellent life and excellent side-reaction-preventing property. The activated clay for treating aromatic hydrocarbons is obtained by treating dioctahedral smectite clay minerals with an acid so as to possess a BET specific surface area of not smaller than 250 m.sup.2 /g and to contain iron in an amount of not smaller than 2.5% by weight calculated as Fe.sub.2 O.sub.3.
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