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:
Jun. 30, 2015
Filed:
May. 12, 2011
Applicant:
Maija-leena Metsärinta, Vanha-Ulvila, FI;
Inventor:
Maija-Leena Metsärinta, Vanha-Ulvila, FI;
Assignee:
OUTOTEC OYJ, Espoo, FI;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/26 (2006.01); C22B 1/00 (2006.01); C22B 1/10 (2006.01); C22B 26/12 (2006.01); F23C 10/00 (2006.01); F23C 10/10 (2006.01); F23C 10/28 (2006.01);
U.S. Cl.
CPC ...
C22B 1/00 (2013.01); C22B 1/10 (2013.01); C22B 26/12 (2013.01); F23C 10/005 (2013.01); F23C 10/10 (2013.01); F23C 10/28 (2013.01); F23C 2206/103 (2013.01); F23C 2900/10001 (2013.01); F23L 2900/07006 (2013.01); Y02E 20/344 (2013.01);
Abstract
The invention relates to a method for thermally processing α-spodumene, i.e. lithium aluminum silicate, by which treatment it is transformed into β-spodumene, which is more advantageous for further processing; in the method, concentrate or ore with a grain size of 20-1,000 μm is processed in a fluidized bed reactor, at a temperature of 800-1,000° C., by using an oxygenous gas as the fluidizing gas.