(19)
(11) EP 4 437 143 A1

(12)

(43) Date of publication:
02.10.2024 Bulletin 2024/40

(21) Application number: 22818757.1

(22) Date of filing: 21.11.2022
(51) International Patent Classification (IPC): 
C21B 11/02(2006.01)
C21B 13/02(2006.01)
 C21B 13/00(2006.01)
C21B 13/14(2006.01)
(52) Cooperative Patent Classification (CPC):
C21B 11/02; C21B 13/004; C21B 13/0073; C21B 13/029; C21B 13/146; C21B 2100/80; C21B 2300/02; F27B 1/04; F27B 1/16
(86) International application number:
PCT/EP2022/082530
(87) International publication number:
WO 2023/094292 (01.06.2023 Gazette 2023/22)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 23.11.2021 LU 500891

(71) Applicant: Paul Wurth S.A.
1122 Luxembourg (LU)

(72) Inventors:
  • DIDELON, Fernand
    3286 Bettembourg (LU)
  • MAGGIOLI, Nicolas
    57100 Thionville (FR)
  • KINZEL, Klaus Peter
    5222 Sandweiler (LU)

(74) Representative: Office Freylinger 
P.O. Box 48
8001 Strassen
8001 Strassen (LU)

   


(54) DOUBLE SHAFT FURNACE ARRANGEMENT AND METHOD FOR OPERATING A DOUBLE SHAFT FURNACE ARRANGEMENT