C21B2100/04 - CPC Classification Index

#1

20170002434

2017-01-05

Method for operating a top gas recycling blast furnace installation

#2

20160326604

2016-11-10

Method for operation of blast furnace

#3

20160319383

2016-11-03

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

#4

20160304977

2016-10-20

Device for producing partially reduced iron

#5

20160289783

2016-10-06

Method for treating desulfurization slag

#6

20160076113

2016-03-17

METHOD AND DEVICE FOR REDUCING IRON-OXIDE-CONTAINING FEEDSTOCKS IN A HIGH-PRESSURE REDUCING UNIT

#7

20150345869

2015-12-03

Reformer gas-based reducing method with reduced NOemission

#8

20150159952

2015-06-11

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

#9

20150115508

2015-04-30

Burning apparatus and method for manufacturing reduced iron using the same

#10

20150068364

2015-03-12

BLAST FURNACE WITH TOP-GAS RECYCLE

#11

20150007697

2015-01-08

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

#12

20140373677

2014-12-25

Process for Carbothermic or Electrothermic Production of Crude Iron or Base Products

#13

20140260803

2014-09-18

Process for producing direct reduced iron (DRI) utilizing gases derived from coal

#14

20140252696

2014-09-11

Method of operating regenerative heaters in blast furnace plant

#15

20140230606

2014-08-21

IRONMAKING PROCESS AND INSTALLATION

#16

20140217653

2014-08-07

System for energy optimization in a plant for producing direct-reduced metal ores

#17

20140202285

2014-07-24

Method for treating waste gases from plants for pig iron production

#18

20140196571

2014-07-17

Process and device for charging into a smelting unit

#19

20140150607

2014-06-05

Process for direct reduction of iron oxide

#20

20140130639

2014-05-15

Carbon dioxide reduction in steelworks

#21

20140053686

2014-02-27

System and method for reducing iron oxide to metallic iron using natural gas

#22

20140042677

2014-02-13

Process and device for producing pig iron or liquid steel precursors

#23

20140007504

2014-01-09

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

#24

20130312571

2013-11-28

System and method for reducing iron oxide to metallic iron using coke oven gas and oxygen steelmaking furnace gas

#25

20130259782

2013-10-03

Method and device for producing a fluid enriched with carbon dioxide from a waste gas of a ferrous-metallurgy unit

#26

20130118306

2013-05-16

Process and plant for producing hot metal

#27

20130112075

2013-05-09

Method for cleaning a gas flow loaded with dust

#28

20120312125

2012-12-13

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

#29

20120198966

2012-08-09

System and method for making metallic iron with reduced CO emissions

#30

20120160062

2012-06-28

Reformer gas-based reducing method with reduced NO emission

#31

20120125157

2012-05-24

Method for producing direct reduced iron with limited COemissions

#32

20120079917

2012-04-05

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

#33

20120036961

2012-02-16

Method and system for producing pig iron or fluid steel pre-products

#34

20050000320

2005-01-06

Combined pre-treatment process for enabling feed material to be charged in direct reduction processes