(19)

(11)

EP 2 334 829 A1

(12)

(43) Date of publication: 22.06.2011 Bulletin 2011/25 (21) Application number: 09736372.5 (22) Date of filing: 15.09.2009

(51) International Patent Classification (IPC):  C21B 13/00(2006.01) C22B 1/20(2006.01) C22B 1/16(2006.01) F27B 9/18(2006.01) (86) International application number: PCT/EP2009/006662 (87) International publication number: WO 2010/040442 (15.04.2010 Gazette 2010/15)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR Designated Extension States: AL BA RS (30) Priority: 09.10.2008 DE 102008051063 (71) Applicant: Outotec OYJ 02200 Espoo (FI)	(72) Inventor: BAROWSKI, Helmut 61449 Steinbach/Ts (DE) (74) Representative: KEIL & SCHAAFHAUSEN Patentanwälte  Cronstettenstraße 66 60322 Frankfurt am Main 60322 Frankfurt am Main (DE)