{HEAD ~ The present invention} belongs to the field of extraction processes, more specifically, to {TAIL ~ processes} of extractive oxidation of contaminants from raw fuel streams with the aid of an oxidation pair and a catalyst, which is a reduced iron oxide 
{ HEAD ~ The present invention } belongs to the field of extraction processes , more specifically , to { TAIL ~ processes } of extractive oxidation of contaminants from raw fuel streams with the aid of an oxidation pair and a catalyst , which is a reduced iron oxide
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