Process for the production of iron oxide containing catalysts

Details Process for the production of iron oxide containing catalysts Process for the production of iron oxide containing catalysts

2005-04-05

2005-04-05

Hendrickson, Stuart (Department: 1754)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

C502S307000, C502S314000, C502S316000, C502S328000, C502S329000, C502S330000, C502S331000

Reexamination Certificate

active

06875723

ABSTRACT:
A process for the production mixed metal oxide containing catalysts comprising the steps of:dissolution of metals Me=Fe, Ni, Al, Cu, Co, Zn, Cr, in nitric acid providing an acid solution of metal mixed nitrate products, aluminium can be added either as nitrate or hydroxide;addition of a carbonhydrate, an amino acid and/or a carboxylic acid;decomposition at 250-700° C. with free air supply of the acid solution by spraying onto the inner surface of one or more rotary kilns, into a spray calcination fluid bed, into a tower kiln or into a steel band conveyor furnace to iron oxide and NOx; and optionallyregeneration of the formed NOxto concentrated nitric acid and recycling of produced nitric acid to the first step.

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