| http://www.w3.org/ns/prov#value | - As in common practice, the particles are then preferably dried and calcined at a temperature above 900 F. Although the raw materials for the catalysts used in my invention may be metal salts such as nitrates, carbonates, sulfates, phosphates, acetates, and the like, or the metal oxides, or in rare cases the metals themselves, which then may be further converted in the process of catalyst preparati
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