C21B13/10 - CPC Classification Index

#1

20240182993

2024-06-06

PROCESS AND SYSTEM FOR THE PRODUCTION OF IRON NUGGETS

#2

20230407423

2023-12-21

BIOMASS DIRECT REDUCED IRON

#3

20220213567

2022-07-07

IRONMAKING SYSTEM AND IRONMAKING PROCESS OF TWO-SECTION DOWNDRAFT BED

#4

20210123111

2021-04-29

Direct smelting process with full combustion

#5

20200140966

2020-05-07

Classified reduction gasification iron smelting process of iron ore powder and coal powder in a Y-type entrained flow bed

#6

20190301800

2019-10-03

Rotary hearth furnace, and method for producing reduced iron using rotary hearth furnace

#7

20180087120

2018-03-29

METHOD AND APPARATUS FOR TREATING IRON-CONTAINED RAW MATERIAL USING BATH SMELTING FURNACE

#8

20180030574

2018-02-01

Method for smelting saprolite ore

#9

20180017326

2018-01-18

Reduced iron production method and device

#10

20170342514

2017-11-30

Method for smelting nickel oxide ore

#11

20170306444

2017-10-26

Method for smelting nickel oxide ore

#12

20170198365

2017-07-13

Rotary hearth furnace

#13

20160312320

2016-10-27

Method to operate a smelt cyclone

#14

20160304977

2016-10-20

Device for producing partially reduced iron

#15

20160208350

2016-07-21

SMELTING APPARATUS AND METHOD OF USING THE SAME

#16

20160017458

2016-01-21

Direct smelting process and apparatus

#17

20160017446

2016-01-21

Cokeless reverberatory furnace for melting iron with separate hearth and melting chamber

#18

20150361515

2015-12-17

METHOD FOR PRODUCING REDUCED IRON AGGLOMERATE

#19

20150259758

2015-09-17

Starting a smelting process

#20

20150203931

2015-07-23

METHOD FOR PRODUCING METALLIC IRON

#21

20140150606

2014-06-05

Method of manufacturing direct reduction iron and reduction firing apparatus

#22

20130180362

2013-07-18

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

#23

20130153368

2013-06-20

Feeding system for reduced iron material

#24

20130139647

2013-06-06

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

#25

20130081516

2013-04-04

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

#26

20120279353

2012-11-08

SYSTEM AND METHOD FOR PRODUCING METALLIC IRON

#27

20120200014

2012-08-09

Apparatus for injecting gas into a vessel

#28

20120200013

2012-08-09

Apparatus for manufacturing molten metal

#29

20120198966

2012-08-09

System and method for making metallic iron with reduced CO emissions

#30

20120193842

2012-08-02

Apparatus for manufacturing molten metal

#31

20120160060

2012-06-28

Use of bimodal carbon distribution in compacts for producing metallic iron nodules

#32

20120119424

2012-05-17

System and method for producing metallic iron

#33

20120100034

2012-04-26

Process for producing sponge iron

#34

20120067171

2012-03-22

Direct smelting process and apparatus

#35

20120055286

2012-03-08

Method of manufacturing direct reduction iron and reduction firing apparatus

#36

20120013054

2012-01-19

System and method for producing metallic iron

#37

20110308353

2011-12-22

Production of iron from metallurgical waste

#38

20110068522

2011-03-24

Apparatus for injecting gas into a vessel

#39

20110017016

2011-01-27

SYSTEM AND METHOD FOR COOLING AND REMOVING IRON FROM A HEARTH

#40

20100300247

2010-12-02

Method for producing reduced metal and slag containing oxidized nonferrous metal using an upgraded coal

#41

20100287992

2010-11-18

FOREHEARTH

#42

20100164150

2010-07-01

Method and system for producing metallic iron nuggets

#43

20100148410

2010-06-17

Linear hearth furnace system and methods regarding same

#44

20100129759

2010-05-27

Multiple hearth furnace

#45

20100107818

2010-05-06

System and method for producing metallic iron nodules

#46

20100044935

2010-02-25

Direct smelting vessel and cooler therefor

#47

20100037728

2010-02-18

Method for reducing chromium containing raw material

#48

20100031778

2010-02-11

Multiple hearth furnace for reducing iron oxide

#49

20100031776

2010-02-11

System and method of producing metallic iron

#50

20090229414

2009-09-17

System and method for producing metallic iron

#51

20090193933

2009-08-06

Pre-Processing Materials Using Encapsulation Technologies

#52

20090158892

2009-06-25

System and method for producing metallic iron

#53

20090068488

2009-03-12

Granulated metallic iron superior in rust resistance and method for producing the same

#54

20090031859

2009-02-05

Method for producing metallic iron

#55

20080302211

2008-12-11

Linear hearth furnace system and methods regarding same

#56

20070051203

2007-03-08

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

#57

20060278041

2006-12-14

Method for producing improved coal for use in metallurgy, and method for producing reduced metal and slag containing oxidized nonferrous metal

#58

20060150775

2006-07-13

Method and system for producing metallic iron nuggets

#59

20060150774

2006-07-13

Method and system for producing metallic iron nuggets

#60

20060150773

2006-07-13

Method and system for producing metallic iron nuggets

#61

20060150772

2006-07-13

Method and system for producing metallic iron nuggets

#62

20060108724

2006-05-25

Powder body melting burner

#63

20060096420

2006-05-11

Method for reducing chromium containing raw material

#64

20050284262

2005-12-29

Metallurgical vessel

#65

20050229748

2005-10-20

Linear hearth furnace system and methods regarding same

#66

20050103160

2005-05-19

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

#67

20050087039

2005-04-28

Method for producing metallic iron