C21B2100/02 - CPC Classification Index

#1

20170003695

2017-01-05

Method and apparatus for the energy-efficient operation of secondary dust removal systems

#2

20170002434

2017-01-05

Method for operating a top gas recycling blast furnace installation

#3

20170002433

2017-01-05

Blast furnace and method for operating a blast furnace

#4

20160348195

2016-12-01

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

#5

20160326605

2016-11-10

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

#6

20160326604

2016-11-10

Method for operation of blast furnace

#7

20160319383

2016-11-03

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

#8

20160076113

2016-03-17

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

#9

20150345869

2015-12-03

Reformer gas-based reducing method with reduced NOemission

#10

20150159952

2015-06-11

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

#11

20150068364

2015-03-12

BLAST FURNACE WITH TOP-GAS RECYCLE

#12

20150013498

2015-01-15

METHOD OF PRODUCTION AND APPARATUS FOR PRODUCTION OF REDUCED IRON

#13

20150007697

2015-01-08

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

#14

20140373677

2014-12-25

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

#15

20140361472

2014-12-11

Method and device for operating a smelting reduction process

#16

20140260803

2014-09-18

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

#17

20140252696

2014-09-11

Method of operating regenerative heaters in blast furnace plant

#18

20140224068

2014-08-14

Method and device for producing pig iron

#19

20140217653

2014-08-07

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

#20

20140202285

2014-07-24

Method for treating waste gases from plants for pig iron production

#21

20140150607

2014-06-05

Process for direct reduction of iron oxide

#22

20140138884

2014-05-22

Device for the closed-loop control of process gases in a plant for producing directly reduced metal ores

#23

20140130639

2014-05-15

Carbon dioxide reduction in steelworks

#24

20140053686

2014-02-27

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

#25

20140042677

2014-02-13

Process and device for producing pig iron or liquid steel precursors

#26

20140007504

2014-01-09

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

#27

20130312571

2013-11-28

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

#28

20130276584

2013-10-24

Production of iron

#29

20130259782

2013-10-03

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

#30

20130118306

2013-05-16

Process and plant for producing hot metal

#31

20130112075

2013-05-09

Method for cleaning a gas flow loaded with dust

#32

20120312125

2012-12-13

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

#33

20120198966

2012-08-09

System and method for making metallic iron with reduced CO emissions

#34

20120174711

2012-07-12

Apparatus for manufacturing reduced iron and method for manufacturing the same

#35

20120160062

2012-06-28

Reformer gas-based reducing method with reduced NO emission

#36

20120079917

2012-04-05

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

#37

20120036961

2012-02-16

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

#38

20110314966

2011-12-29

Method and apparatus for direct reduction ironmaking

#39

20050000320

2005-01-06

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