(19)
(11) EP 4 460 407 A1

(12)

(43) Date of publication:
13.11.2024 Bulletin 2024/46

(21) Application number: 22857096.6

(22) Date of filing: 22.12.2022
(51) International Patent Classification (IPC): 
B09B 3/40(2022.01)
C04B 35/043(2006.01)
C04B 35/80(2006.01)
F27B 3/14(2006.01)
F27D 1/00(2006.01)
 C04B 35/01(2006.01)
C04B 35/622(2006.01)
F27B 1/14(2006.01)
F27B 14/10(2006.01)
F27D 1/16(2006.01)
(52) Cooperative Patent Classification (CPC):
B09B 3/40; C04B 35/043; C04B 35/013; C04B 35/62204; C04B 2235/424; C04B 2235/425; C04B 2235/5292; C04B 2235/5248; C04B 35/80; C04B 2235/72; C04B 2235/3217; C04B 2235/3208; C04B 2235/3272; C04B 2235/3418; F27D 1/0006; F27D 1/1694; F27B 1/14; F27B 3/14; Y02P 10/20
(86) International application number:
PCT/US2022/053769
(87) International publication number:
WO 2023/132948 (13.07.2023 Gazette 2023/28)
(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: 06.01.2022 US 202263296912 P
18.10.2022 US 202217967981

(71) Applicant: HarbisonWalker International Holdings, Inc.
Moon Township, Pennsylvania 15108 (US)

(72) Inventors:
  • HARTWICH, David
    Bethel Park, PA 15102 (US)
  • GARNIER, Samantha
    Pittsburgh, PA 15219 (US)

(74) Representative: Kraus & Lederer PartGmbB 
Thomas-Wimmer-Ring 15
80539 München
80539 München (DE)

   


(54) REFRACTORY LINING DESIGN AND STEEL PRACTICE FOR LOW REFRACTORY WASTE, AND REFRACTORY BASED ON RECLAIMED LOW-IMPURITY MAGNESIA-CARBON AGGREGATE