C21B13/0046 - CPC Classification Index

#1

20260043101

2026-02-12

ADJUSTING CARBON CONTENT IN DIRECT REDUCED IRON

#2

20250253426

2025-08-07

BATTERY RECYCLING

#3

20250179595

2025-06-05

COATING MATERIAL FOR USE IN DIRECT-REDUCTION IRON PRODUCTION, AND PRODUCTION METHOD THEREFOR

#4

20240425942

2024-12-26

METHOD FOR PRODUCING AGGLOMERATED RAW MATERIAL

#5

20240279758

2024-08-22

METHOD FOR PRODUCING AGGLOMERATED ORE, METHOD FOR PRODUCING REDUCED IRON, AGGLOMERATED ORE, SINTERING MACHINE AND PELLET FIRING FURNACE

#6

20240182993

2024-06-06

PROCESS AND SYSTEM FOR THE PRODUCTION OF IRON NUGGETS

#7

20240124948

2024-04-18

METAL OXIDE MATERIAL REDUCTION MEANS

#8

20230407423

2023-12-21

BIOMASS DIRECT REDUCED IRON

#9

20220106664

2022-04-07

Process for the production of iron ore fines agglomerate and the agglomerated product

#10

20220074006

2022-03-10

Process and apparatus for direct reduction with electrically heated-up reduction gas

#11

20210351450

2021-11-11

Battery recycling

#12

20200224285

2020-07-16

Raw material for direct reduction, method of producing raw material for direct reduction, and method of producing reduced iron

#13

20190169704

2019-06-06

Reduced iron production method and production apparatus

#14

20190085420

2019-03-21

Direct reduced iron (DRI) heat treatment, products formed therefrom, and use thereof

#15

20180320245

2018-11-08

Cokeless sinter blend compositions

#16

20180237870

2018-08-23

Binding process for pyrophoric steelmaking byproducts

#17

20180195140

2018-07-12

Coated iron ore pellets and a process of making and reducing the same to form reduced iron pellets

#18

20180119248

2018-05-03

Composite iron pellets and methods of making same

#19

20160340751

2016-11-24

Composite iron pellets

#20

20160304977

2016-10-20

Device for producing partially reduced iron

#21

20160237514

2016-08-18

METHOD FOR MANUFACTURING IRON NUGGETS

#22

20160168654

2016-06-16

METHOD FOR MANUFACTURING AGGLOMERATE AND REDUCED IRON

#23

20160160302

2016-06-09

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

#24

20160153061

2016-06-02

RAW MATERIAL FOR DIRECT REDUCTION, METHOD OF PRODUCING RAW MATERIAL FOR DIRECT REDUCTION, AND METHOD OF PRODUCING REDUCED IRON

#25

20150322542

2015-11-12

Method for producing reduced iron

#26

20150027275

2015-01-29

Process for manufacturing reduced iron agglomerates

#27

20140042677

2014-02-13

Process and device for producing pig iron or liquid steel precursors

#28

20130180362

2013-07-18

Partially-reduced iron producing apparatus and partially-reduced iron producing method

#29

20130139647

2013-06-06

Partially-reduced iron producing method and partially-reduced iron producing apparatus

#30

20130098204

2013-04-25

Method for producing granular metallic iron

#31

20130081516

2013-04-04

Direct production of iron slabs and nuggets from ore without pelletizing or briquetting

#32

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

#33

20130032005

2013-02-07

BENTONITE-BOUND COMPACTS OF UNDERSIZED OXIDIC IRON CARRIERS

#34

20120328465

2012-12-27

Process and apparatus for producing pressed articles

#35

20120285295

2012-11-15

METHOD FOR PRODUCING METALLIC IRON NUGGETS

#36

20120205840

2012-08-16

Method and apparatus for manufacturing granular metallic iron

#37

20120198966

2012-08-09

System and method for making metallic iron with reduced CO emissions

#38

20120186395

2012-07-26

METHOD FOR PRODUCING BRIQUETTES, METHOD FOR PRODUCING REDUCED METAL, AND METHOD FOR SEPARATING ZINC OR LEAD

#39

20120152061

2012-06-21

Method and system for producing direct reduced iron and/or hot metal using brown coal

#40

20120017725

2012-01-26

Briquetting of mill scale

#41

20120013054

2012-01-19

System and method for producing metallic iron

#42

20120006449

2012-01-12

METHOD FOR PRODUCING METALLIC IRON

#43

20110265603

2011-11-03

METHOD FOR PRODUCING GRANULAR IRON

#44

20110247457

2011-10-13

Process for production of direct reduced iron

#45

20110226092

2011-09-22

Process for producing molten iron and apparatus for producing molten iron

#46

20110138965

2011-06-16

Process and device for producing pig iron or liquid steel precursors

#47

20110107874

2011-05-12

Method for producing briquette, method for producing reduced metal, and method for separating zinc or lead

#48

20110100162

2011-05-05

Method and system for producing metallic iron nuggets

#49

20110036204

2011-02-17

METHOD FOR PRODUCING REDUCED IRON

#50

20110024681

2011-02-03

TITANIUM OXIDE-CONTAINING AGGLOMERATE FOR PRODUCING GRANULAR METALLIC IRON

#51

20110023657

2011-02-03

Process for producing reduced iron pellets, and process for producing pig iron

#52

20110023656

2011-02-03

METHOD FOR PRODUCING GRANULAR METALLIC IRON

#53

20100313710

2010-12-16

Method and apparatus for manufacturing granular metallic iron

#54

20100294079

2010-11-25

Metal oxide-bearing green pellets for reducing furnace, method of production of same, method of reduction of same, and reduction facility

#55

20100285326

2010-11-11

ORE REDUCTION PROCESS AND TITANIUM OXIDE AND IRON METALLIZATION PRODUCT

#56

20100237280

2010-09-23

Ore reduction process using carbon based materials having a low sulfur content and titanium oxide and iron metallization product therefrom

#57

20100224028

2010-09-09

Method for producing hot briquette iron using high-temperature reduced iron and method and apparatus for controlling temperature of reduced iron for hot forming

#58

20100218646

2010-09-02

Producing method of direct reduced iron

#59

20100199806

2010-08-12

Method of producing reduced iron cast, and method of producing pig iron

#60

20100192726

2010-08-05

Method for reduction treatment of electric furnace dust

#61

20100171072

2010-07-08

METHOD FOR MANUFACTURING GRANULAR METALLIC IRON

#62

20100164150

2010-07-01

Method and system for producing metallic iron nuggets

#63

20100107818

2010-05-06

System and method for producing metallic iron nodules

#64

20090282950

2009-11-19

PROCESS FOR PRODUCING METALLIC IRON

#65

20090217784

2009-09-03

Ore reduction process and titanium oxide and iron metallization product

#66

20090175753

2009-07-09

Method and system for producing metallic iron nuggets

#67

20090169413

2009-07-02

Process for recycling of steel industry iron bearing by-products, pellet obtained in that process and use thereof

#68

20090158892

2009-06-25

System and method for producing metallic iron

#69

20090090216

2009-04-09

Process for producing molten iron and apparatus for producing molten iron

#70

20090045558

2009-02-19

Screw conveyor of rotary hearth furnace for discharging reduced iron

#71

20090031859

2009-02-05

Method for producing metallic iron

#72

20090025511

2009-01-29

Method and apparatus for making metallic iron

#73

20080087135

2008-04-17

Method for reducing iron oxide and producing syngas

#74

20070296127

2007-12-27

Method and apparatus for cooling reduced-iron agglomerate

#75

20070258843

2007-11-08

METALLIC IRON NUGGETS

#76

20070227301

2007-10-04

Metallic iron nuggets

#77

20070113708

2007-05-24

FERRONICKEL AND PROCESS FOR PRODUCING RAW MATERIAL FOR FERRONICKEL SMELTING

#78

20070079667

2007-04-12

METHOD OF PRODUCING STAINLESS STEEL BY RE-USING WASTE MATERIAL OF STAINLESS STEEL PRODUCING PROCESS

#79

20070068344

2007-03-29

Ore reduction process and titanium oxide and iron metallization product

#80

20070051203

2007-03-08

Method for discharging reduced product from a movable-hearth furnace and a discharging device

#81

20060278042

2006-12-14

Method of producing stainless steel by re-using waste material of stainless steel producing process

#82

20060273497

2006-12-07

Method and installation for utilizing hydrocarbon-containing and iron-oxide-containing waste materials, in particular rolling scale sludges, and fine coals

#83

20060248981

2006-11-09

Granular metallic iron

#84

20060218753

2006-10-05

Method of producing iron oxide pellets

#85

20060150775

2006-07-13

Method and system for producing metallic iron nuggets

#86

20060150774

2006-07-13

Method and system for producing metallic iron nuggets

#87

20060150773

2006-07-13

Method and system for producing metallic iron nuggets

#88

20060150772

2006-07-13

Method and system for producing metallic iron nuggets

#89

20060070495

2006-04-06

Granular metallic iron

#90

20050211020

2005-09-29

Ferronickel and process for producing raw material for ferronickel smelting

#91

20050103160

2005-05-19

Method for discharging reduced product from a movable-hearth furnace and a discharging device

#92

20050092130

2005-05-05

Process and apparatus for the direct reduction of iron oxides in an electrothermal fluidized bed and resultant product