(19)
(11) EP 4 680 775 A1

(12)

(43) Date of publication:
21.01.2026 Bulletin 2026/04

(21) Application number: 24711297.2

(22) Date of filing: 07.03.2024
(51) International Patent Classification (IPC): 
C21B 13/00(2006.01)
(52) Cooperative Patent Classification (CPC):
C21B 13/0073; C21B 13/0033; C21B 2100/282; C21B 2100/26; C21B 2100/66; C21B 2100/64
(86) International application number:
PCT/SE2024/050212
(87) International publication number:
WO 2024/196294 (26.09.2024 Gazette 2024/39)
(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:
GE KH MA MD TN

(30) Priority: 17.03.2023 SE 2350304

(71) Applicant: HYBRIT Development AB
107 24 Stockholm (SE)

(72) Inventors:
  • RIESBECK, Johan
    971 38 Luleå (SE)
  • HYLLANDER, Gunilla
    954 42 Södra Sunderbyn (SE)

(74) Representative: Zacco Sweden AB 
P.O. Box 5581 Löjtnantsgatan 21
114 85 Stockholm
114 85 Stockholm (SE)

   


(54) A METHOD FOR THE PRODUCTION OF CARBURIZED SPONGE IRON