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1. WO2019064052 - METHOD OF CONTINUOUS MANUFACTURING OF SOLIDIFIED STEELMAKING SLAG AND ASSOCIATED DEVICE

Publication Number WO/2019/064052
Publication Date 04.04.2019
International Application No. PCT/IB2017/055967
International Filing Date 28.09.2017
Chapter 2 Demand Filed 24.07.2019
IPC
C22B 7/04 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
7Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
04Working-up slag
C04B 5/00 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
5Treatment of molten slag; Artificial stone from molten slag
C21B 3/06 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
BMANUFACTURE OF IRON OR STEEL
3General features in the manufacture of pig-iron
04Recovery of by-products, e.g. slag
06Treatment of liquid slag
C21B 3/08 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
BMANUFACTURE OF IRON OR STEEL
3General features in the manufacture of pig-iron
04Recovery of by-products, e.g. slag
06Treatment of liquid slag
08Cooling slag
CPC
C04B 5/00
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
5Treatment of ; metallurgical; slag
C21B 2400/024
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
BMANUFACTURE OF IRON OR STEEL
2400Treatment of slags originating from iron or steel processes
02Physical or chemical treatment of slags
022Methods of cooling or quenching molten slag
024with the direct use of steam or liquid coolants, e.g. water
C21B 2400/026
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
BMANUFACTURE OF IRON OR STEEL
2400Treatment of slags originating from iron or steel processes
02Physical or chemical treatment of slags
022Methods of cooling or quenching molten slag
026using air, inert gases or removable conductive bodies
C21B 2400/034
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
BMANUFACTURE OF IRON OR STEEL
2400Treatment of slags originating from iron or steel processes
02Physical or chemical treatment of slags
034Stirring or agitating by pressurised fluids or by moving apparatus
C21B 2400/062
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
BMANUFACTURE OF IRON OR STEEL
2400Treatment of slags originating from iron or steel processes
05Apparatus features
062Jet nozzles or pressurised fluids for cooling, fragmenting or atomising slag
C21B 3/08
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
BMANUFACTURE OF IRON OR STEEL
3General features in the manufacture of pig-iron
04Recovery of by-products, e.g. slag
06Treatment of liquid slag
08Cooling slag
Applicants
  • ARCELORMITTAL [LU]/[LU]
Inventors
  • DE CONINCK, Eric
  • INFANTE, Ivonne
  • MATTOS DOS SANTOS, Rafael
  • OUNOUGHENE, Ghania
  • VAN GERVEN, Thomas
Agents
  • PLAISANT, Sophie
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD OF CONTINUOUS MANUFACTURING OF SOLIDIFIED STEELMAKING SLAG AND ASSOCIATED DEVICE
(FR) PROCÉDÉ DE FABRICATION CONTINUE DE LAITIER D'ACIÉRIE SOLIDIFIÉ ET DISPOSITIF ASSOCIÉ
Abstract
(EN)
The invention is related to a method of continuous manufacturing of solidified steelmaking slag comprising the steps of: - solidifying molten steelmaking slag comprising at least 2% in weight of free lime so as to produce solidified slag particles having a diameter below 1 mm, the molten steelmaking slag being put in contact with at least a first carbonation gas during such solidification, - cooling the solidified slag particles down to a temperature below or equal to 300°C, in a closed chamber, the solidified slag particles being put in contact with at least one second carbonation gas during such cooling. The invention is also related to an associated device.
(FR)
L'invention concerne un procédé de fabrication continue de laitier d'aciérie solidifié comprenant les étapes consistant à : - solidifier un laitier d'aciérie fondu comprenant au moins 2 % en poids de chaux libre de façon à produire des particules de laitier solidifiées ayant un diamètre inférieur à 1 mm, le laitier d'aciérie fondu étant mis en contact avec au moins un premier gaz de carbonatation pendant cette solidification, - refroidir les particules de laitier solidifiées jusqu'à une température inférieure ou égale à 300 °C, dans une chambre fermée, les particules de laitier solidifiées étant mises en contact avec au moins un second gaz de carbonatation pendant ce refroidissement. L’invention concerne en outre un dispositif associé.
Also published as
JP2020517845
MXMX/a/2020/003592
RU2020112893
UAa202002597
Latest bibliographic data on file with the International Bureau