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:
Nov. 20, 2012
Filed:
Jan. 14, 2010
Applicants:
Michael Missalla, Oberursel, DE;
Guenter Schneider, Lorsch, DE;
Jan Jarzembowski, Pretoria, ZA;
Erwin Schmidbauer, Kastl, DE;
Inventors:
Michael Missalla, Oberursel, DE;
Guenter Schneider, Lorsch, DE;
Jan Jarzembowski, Pretoria, ZA;
Erwin Schmidbauer, Kastl, DE;
Assignee:
Outotec Oyj, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 8/00 (2006.01); C01F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for producing metal oxide from metal salts includes cleaning a metal salt in a filter. After cleaning, the metal salt is dried in a drying apparatus. Steam is formed in the drying apparatus. The metal salt is preheated in at least one preheating stage. The metal salt is calcined to metal oxide in a fluidized-bed reactor. The metal oxide is cooled. The steam formed in the drying apparatus is recirculated into the filter.