The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 2001
Filed:
May. 19, 1999
Applicant:
Inventors:
Assignee:
SUD Chemie MT S.R.L., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 2/302 ; B01J 2/310 ; B01J 2/304 ; B01J 2/316 ;
U.S. Cl.
CPC ...
B01J 2/302 ; B01J 2/310 ; B01J 2/304 ; B01J 2/316 ;
Abstract
Catalysts for dehydrogenating ethylbenzene to styrene which comprise iron oxide, oxides of alkaline and alkaline-earth metals, oxides of the lanthanide series, oxides of metals of the sixth group, prepared from a paste of iron oxide impregnated with an aqueous solution of a cerium salt, treated with aqueous KOH and calcined, after drying, to preform potassium ferrate, to which the other components or precursors of the catalyst are then added.