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1. WO2020127039 - PROCESS FOR MANUFACTURING A SLAG CONDITIONING AGENT FOR STEEL DESULFURIZATION

Publication Number WO/2020/127039
Publication Date 25.06.2020
International Application No. PCT/EP2019/085338
International Filing Date 16.12.2019
IPC
C21C 1/02 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
1Refining of pig-iron; Cast iron
02Dephosphorising or desulfurising
C21C 5/06 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
5Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel
04Manufacture of hearth-furnace steel, e.g. Siemens-Martin steel
06Processes yielding slags of special composition
C21C 5/36 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
5Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel
28Manufacture of steel in the converter
36Processes yielding slags of special composition
C21C 7/064 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
7Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/-C21C5/118
04Removing impurities by adding a treating agent
064Dephosphorising; Desulfurising
C21C 5/00 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
5Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel
C21C 5/54 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
5Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel
52Manufacture of steel in electric furnaces
54Processes yielding slags of special composition
Applicants
  • S.A. LHOIST RECHERCHE ET DEVELOPPEMENT [BE]/[BE]
Inventors
  • PERRIN, Éric
  • CHUNLAMANI, Souliyann
Agents
  • CALYSTA NV
Priority Data
18213132.617.12.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR MANUFACTURING A SLAG CONDITIONING AGENT FOR STEEL DESULFURIZATION
(FR) PROCÉDÉ DE FABRICATION D'UN AGENT DE CONDITIONNEMENT DE LAITIER POUR LA DÉSULFURATION D'ACIER
Abstract
(EN)
Process for manufacturing a slag conditioning agent for steel desulfurization wherein a dried slag material obtained from secondary steelmaking process is mixed with quicklime particles to produce a slag conditioning agent.
(FR)
L'invention concerne un procédé de fabrication d'un agent de conditionnement de laitier pour la désulfuration d'acier, un matériau de laitier séché obtenu à partir d'un procédé d'élaboration d'acier secondaire étant mélangé avec des particules de chaux vive pour produire un agent de conditionnement de laitier.
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