ClassID:

118702

C21B3/04 - CPC Classification

Classification description:

General features in the manufacture of pig-iron Recovery of by-products, e.g. slag

Sub-classes:
Recent Application in this class:
#1
20260022430
2026-01-22

A method for producing molten pig iron into an electrical smelting unit

#2
20250376741
2025-12-11

METHOD OF UPGRADING INDUSTRIAL FURNACE BY-PRODUCTS

#3
20250146091
2025-05-08

METHOD FOR TREATING STEEL MILL SLAG

#4
20240270588
2024-08-15

PROCESS FOR TREATMENT OF A SODIUM SULFATE CONTAINING RESIDUE PROCESS STREAM OF A BATTERY MANUFACTURING FACILITY, A BATTERY RECYCLING FACILITY, OR A STEEL PRODUCTION PLANT

#5
20220127688
2022-04-28

Method and installation for removing slag from metallurgical melts

#6
20210221746
2021-07-22

Porous material and method for preparing the same

#7
20200354811
2020-11-12

Processing method

#8
20190256947
2019-08-22

PROCESSING OF CLINKER CONTAINING POLYMETALLIC RAW MATERIALS

#9
20180171421
2018-06-21

Method and system for forming carbonate from steel slag

#10
20180112917
2018-04-26

Slag notch

#11
20170081745
2017-03-23

Direct smelting process

#12
20160333284
2016-11-17

Method of enhancing the dry grinding efficiency of petcoke

#13
20160319383
2016-11-03

Combined system for producing steel and method for operating the combined system

#14
20160304978
2016-10-20

Combined system for producing steel and method for operating the combined system

#15
20160186290
2016-06-30

METALLURGICAL SLAG COATINGS FOR REFRACTORY SUBSTRATES

#16
20160160302
2016-06-09

Fluxing agent, process of its production, agglomeration mixture and use of slug from secondary metallurgy

#17
20160075610
2016-03-17

Process for producing a zinc sulfate solution, obtained from steelworks powder and respective fertilizer inputs

#18
20150240321
2015-08-27

Advanced technology for iron-chrome alloys production and related plant

#19
20150203928
2015-07-23

PROCESS FOR DRY RECYCLING AND PROCESSING OF STEEL SLAG

#20
20150007697
2015-01-08

Method and device for reducing iron-oxide-containing feedstocks in a high-pressure reducing unit

#21
20140212594
2014-07-31

Slag removal apparatus and method

#22
20140023559
2014-01-23

Cleaning tool for cleaning particles contained in a slurry

#23
20130250996
2013-09-26

Slag discharge door device for an electric furnace

#24
20130116105
2013-05-09

Direct smelting process

#25
20130047787
2013-02-28

CARBON-MATERIAL-CONTAINING IRON OXIDE BRIQUETTE COMPOSITION, METHOD FOR PRODUCING THE SAME, AND METHOD FOR PRODUCING DIRECT REDUCED IRON USING THE SAME

#26
20120325055
2012-12-27

Preparation method for stainless steel slags and steelworks slags for recovery of metal

#27
20120167714
2012-07-05

Systems and methods for recycling steelmaking converter sludge

#28
20120138253
2012-06-07

ADVANCED TECHNOLOGY FOR IRON-CHROME ALLOYS PRODUCTION AND RELATED PLANT

#29
20110278498
2011-11-17

HYDROCOMPOSITE WITH IRON AND STEEL SLAG AS STARTING MATERIAL AND METHOD FOR PRODUCING THE SAME

#30
20110185856
2011-08-04

Ironmaking and steelmaking

#31
20110114766
2011-05-19

Apparatus and method for size reduction

#32
20110036204
2011-02-17

METHOD FOR PRODUCING REDUCED IRON

#33
20110023659
2011-02-03

Process for preparing a foaming slag former, product and use thereof

#34
20110017016
2011-01-27

SYSTEM AND METHOD FOR COOLING AND REMOVING IRON FROM A HEARTH

#35
20100285326
2010-11-11

ORE REDUCTION PROCESS AND TITANIUM OXIDE AND IRON METALLIZATION PRODUCT

#36
20090314035
2009-12-24

Method for producing mineral wool

#37
20090267274
2009-10-29

Skimmer apparatus and method

#38
20090266200
2009-10-29

Method for reducing metal oxide slags or glasses and/or for degassing mineral melts, and device for carrying out said method

#39
20090217784
2009-09-03

Ore reduction process and titanium oxide and iron metallization product

#40
20090212261
2009-08-27

Anticaking agent for iron and steel slag

#41
20090107295
2009-04-30

Method and apparatus for the recovery of refractory debris materials and ladle slags as process slags in iron metallurgy production in EAFs, and the related metering to the furnace for the formation of the process slag

#42
20080257108
2008-10-23

Coated Slag

#43
20080250899
2008-10-16

Processing metallurgical slag

#44
20070256518
2007-11-08

Ironmaking and steelmaking

#45
20070256516
2007-11-08

Steel making material recycling system

#46
20070227307
2007-10-04

Method for reducing Cr in metallurgical slags containing Cr

#47
20070068425
2007-03-29

Process of inertization (dampening) of steel making slag for economical reuse

#48
20070068344
2007-03-29

Ore reduction process and titanium oxide and iron metallization product

#49
20060096416
2006-05-11

Refining agent and refining method

#50
20050257644
2005-11-24

Refining agent and refining method

#51
20050138964
2005-06-30

Facility for melting dusts