ClassID:

118721

C21B7/002 - CPC Classification

Classification description:

Blast furnaces Evacuating and treating of exhaust gases

Sub-classes:
Recent Application in this class:
#1
20260146300
2026-05-28

METHOD FOR OPERATING A SMELTING FURNACE INSTALLATION

#2
20250229224
2025-07-17

PROCESS FOR REDUCING FOSSIL CO2 EMISSIONS

#3
20250207211
2025-06-26

REDUCTION OF A METAL OXIDE-CONTAINING MATERIAL ON THE BASIS OF AMMONIA NH3

#4
20250188552
2025-06-12

SYSTEMS AND METHODS FOR IMPROVED CARBON CAPTURE ASSOCIATED WITH MOLTEN METAL PRODUCTION

#5
20250179661
2025-06-05

Reactors and Methods for Production of Sustainable Chemicals using Carbon Emissions of Metallurgical Furnaces

#6
20250179593
2025-06-05

BLAST FURNACE OPERATION METHOD

#7
20250019782
2025-01-16

Steelmaking method and associated network of plants

#8
20240425941
2024-12-26

GEOTHERMALLY POWERED IRON PRODUCTION SYSTEMS AND METHODS

#9
20240336986
2024-10-10

SYSTEM AND METHOD FOR REDUCING ORE USING HYDROGEN AS A REDUCING AGENT

#10
20240279756
2024-08-22

PROCESS UTILIZING SYNTHESIS GAS FOR IMPROVING THE ENVIRONMENTAL IMPACT OF THE REDUCTION OF IRON ORE IN BLAST FURNACES

#11
20240271232
2024-08-15

METHOD FOR PRODUCING STEEL IN AN INTEGRATED METALLURGICAL PLANT

#12
20240263259
2024-08-08

Operating method of a network of plants

#13
20240247327
2024-07-25

Systems and methods for improved carbon capture associated with molten metal production

#14
20240167170
2024-05-23

Reactors and methods for production of sustainable chemicals using carbon emissions of metallurgical furnaces

#15
20240084410
2024-03-14

BLEED-OFF GAS RECOVERY IN A DIRECT REDUCTION PROCESS

#16
20240018615
2024-01-18

METHOD FOR PRODUCING PIG IRON IN A SHAFT FURNACE

#17
20230340628
2023-10-26

METHOD FOR OPERATING A BLAST FURNACE INSTALLATION

#18
20230219815
2023-07-13

SYSTEM NETWORK AND METHOD FOR OPERATING A SYSTEM NETWORK OF THIS TYPE FOR PRODUCING HIGHER ALCOHOLS

#19
20230175084
2023-06-08

STEELMAKING LINE AND METHOD OF PRODUCING REDUCED IRON

#20
20230150820
2023-05-18

SOLID CARBON PRODUCTION DEVICE AND SOLID CARBON PRODUCTION METHOD

#21
20230100959
2023-03-30

BLAST FURNACE SLAG GRANULATION AND WASTE HEAT RECOVERY AND UTILIZATION DEVICE AND METHOD

#22
20230026068
2023-01-26

BLAST FURNACE PLANT AND SHUTDOWN PROCESS

#23
20230008316
2023-01-12

METHOD FOR CONVERTING A BLAST FURNACE PLANT

#24
20220372635
2022-11-24

Integrated hydrogen production method and system

#25
20220177984
2022-06-09

System and method for reducing ore using hydrogen as a reducing agent

#26
20210238700
2021-08-05

PLANT COMPLEX FOR PRODUCING STEEL AND A METHOD FOR OPERATING THE PLANT COMPLEX

#27
20210123110
2021-04-29

PLANT COMPLEX FOR PIG IRON PRODUCTION AND A METHOD FOR OPERATING THE PLANT COMPLEX

#28
20200318207
2020-10-08

Charging system, in particular for a shaft smelt reduction furnace

#29
20180311613
2018-11-01

Process and device for treating furnace gas

#30
20180163564
2018-06-14

Top-pressure recovery turbine deposition control

#31
20170233839
2017-08-17

BLAST FURNACE PLANT

#32
20170002434
2017-01-05

Method for operating a top gas recycling blast furnace installation

#33
20170002433
2017-01-05

Blast furnace and method for operating a blast furnace

#34
20160348196
2016-12-01

Method for generating synthesis gas in conjunction with a smelting works

#35
20160348195
2016-12-01

Plant combination for producing steel and method for operating the plant combination

#36
20160326605
2016-11-10

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

#37
20160326604
2016-11-10

Method for operation of blast furnace

#38
20160319383
2016-11-03

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

#39
20160319381
2016-11-03

METHOD FOR REDUCING CO2 EMISSIONS IN THE OPERATION OF A METALLURGICAL PLANT

#40
20160304978
2016-10-20

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

#41
20160304977
2016-10-20

Device for producing partially reduced iron

#42
20160168652
2016-06-16

DESULFURIZATION OF GASES IN THE PRODUCTION OF PIG IRON

#43
20160083810
2016-03-24

Blast furnace and method for operating a blast furnace

#44
20150329928
2015-11-19

Method and apparatus for supplying blast to a blast furnace

#45
20150159952
2015-06-11

Method for iron-making with full oxygen and hydrogen-rich gas and equipment thereof

#46
20150135900
2015-05-21

Method and system for operating a blast furnace with top-gas recycle and a fired tubular heater

#47
20150135899
2015-05-21

Method and device for introducing fine particle-shaped material into the fluidised bed of a fluidised bed reduction unit

#48
20150068364
2015-03-12

BLAST FURNACE WITH TOP-GAS RECYCLE

#49
20140361472
2014-12-11

Method and device for operating a smelting reduction process

#50
20140130639
2014-05-15

Carbon dioxide reduction in steelworks

#51
20140033662
2014-02-06

Cyclone with a plurality of inlet ducts

#52
20140007504
2014-01-09

Process for regulating joule value of offgases from plants for pig iron production or of synthesis gas

#53
20130270752
2013-10-17

Process for operating a blast furnace installation with top gas recycling

#54
20130032005
2013-02-07

BENTONITE-BOUND COMPACTS OF UNDERSIZED OXIDIC IRON CARRIERS

#55
20120312125
2012-12-13

Method for iron-making with full oxygen and hydrogen-rich gas and equipment thereof

#56
20120102964
2012-05-03

TURBOMACHINE INCLUDING A CARBON DIOXIDE (CO2) CONCENTRATION CONTROL SYSTEM AND METHOD

#57
20120090515
2012-04-19

Blast furnace top gas recycling process and corresponding recycling equipment

#58
20120079917
2012-04-05

Method for the simultaneous production of iron and a crude syngas containing CO and H

#59
20120043705
2012-02-23

Method for feeding a burden to a blast furnace

#60
20120039700
2012-02-16

Method for feeding a burden to a blast furnace

#61
20120032378
2012-02-09

Blast furnace iron production with integrated power generation

#62
20120006158
2012-01-12

Producing metal and carbon dioxide with hydrogen recycle

#63
20110283837
2011-11-24

Method and device for operating a smelting reduction process

#64
20110209576
2011-09-01

Method for operating a blast furnace and blast furnace installation

#65
20110203234
2011-08-25

Dust-catcher for blast furnace gas

#66
20110011211
2011-01-20

Metallurgical process and plant therefor

#67
20100251855
2010-10-07

Shaft furnace and method for operating a furnace

#68
20100212457
2010-08-26

Producing metal and carbon dioxide with hydrogen recycle

#69
20100146982
2010-06-17

BLAST FURNACE IRON PRODUCTION WITH INTEGRATED POWER GENERATION

#70
20100107939
2010-05-06

Treatment method for high-temperature exhaust gas

#71
20100064855
2010-03-18

Blast furnace iron production with integrated power generation

#72
20090197753
2009-08-06

Cyclone separator for blast furnace gas

#73
20060234171
2006-10-19

Fuel gas calorie control method and device

#74
20050217423
2005-10-06

Furnace residue cleaning method