Demetalation of hydrocarbonaceous feedstocks using sulfuric acid and salts thereof
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United States of America Patent
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Jan 14, 1997
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N/A
app pub date -
Jun 6, 1995
filing date -
Jul 21, 1988
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Abstract
Sulfuric acids or salts thereof are used to remove metals, particularly organically-bound calcium, from hydrocarbonaceous feedstocks. An aqueous solution of the acid or its salts is used to extract the metals from the feedstock prior to processing.
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