C21C2100/06 - CPC Classification Index

#1

20240279079

2024-08-22

System and method to sustainable integrated wastewater treatment and air-cooling in a steelmaking plant

#2

20230295756

2023-09-21

Process and plant for preheating a metal charge fed in continuous to an electric melting furnace

#3

20210262048

2021-08-26

Process and plant for preheating a metal charge fed in continuous to an electric melting furnace

#4

20160304978

2016-10-20

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

#5

20150345869

2015-12-03

Reformer gas-based reducing method with reduced NOemission

#6

20150159952

2015-06-11

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

#7

20140023577

2014-01-23

Method for treating a carbon dioxide-containing waste gas from an electrofusion process

#8

20130196271

2013-08-01

Material utilization with an electropositive metal

#9

20130178677

2013-07-11

Method and a system for converting carbon dioxide into chemical starting materials

#10

20130118306

2013-05-16

Process and plant for producing hot metal

#11

20120320941

2012-12-20

Waste heat recovery structure for steel making electric arc furnaces, steel making electric arc furnace facility, and waste heat recovery method for steel making electric arc furnaces

#12

20120312125

2012-12-13

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

#13

20120267076

2012-10-25

System for recovering waste heat

#14

20120237421

2012-09-20

Method for Removing CO2 From Exhaust Gases, Such as Exhaust Gases From Plants for Producing Raw Iron or Exhaust Gases From Syngas Plants

#15

20120217683

2012-08-30

Waste heat system

#16

20120160062

2012-06-28

Reformer gas-based reducing method with reduced NO emission

#17

20120152061

2012-06-21

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

#18

20120055287

2012-03-08

Method for simultaneously producing iron, coke, and power

#19

20120036960

2012-02-16

Direct processing of metallic ore concentrates into ferroalloys

#20

20120032378

2012-02-09

Blast furnace iron production with integrated power generation

#21

20120006158

2012-01-12

Producing metal and carbon dioxide with hydrogen recycle

#22

20110284800

2011-11-24

Method and device for producing a raw synthesis gas

#23

20110226092

2011-09-22

Process for producing molten iron and apparatus for producing molten iron

#24

20110197712

2011-08-18

Method of coal gasification and direct ironmaking and system therefor

#25

20110126542

2011-06-02

Method and device for the treatment of product gas produced by pressure gasification of solid fuels

#26

20110073023

2011-03-31

Exhaust processing and heat recovery system

#27

20110041517

2011-02-24

Method for reforming exhaust gas generated from metallurgical furnace, method for cooling exhaust gas and apparatus therefor

#28

20100212457

2010-08-26

Producing metal and carbon dioxide with hydrogen recycle

#29

20100186644

2010-07-29

EXHAUST GAS PROCESSING SYSTEM AND METHOD FOR ROTARY HEARTH TYPE REDUCING FURNACE

#30

20100170243

2010-07-08

Method and device for utilizing heat transported by a discontinuous flow of exhaust gases

#31

20100146982

2010-06-17

BLAST FURNACE IRON PRODUCTION WITH INTEGRATED POWER GENERATION

#32

20100123275

2010-05-20

Off-gas heat recovery and particulate collection

#33

20100064855

2010-03-18

Blast furnace iron production with integrated power generation

#34

20100043599

2010-02-25

Method and device for producing molten material

#35

20100024599

2010-02-04

METHOD AND DEVICE FOR PRODUCING MOLTEN MATERIAL

#36

20100011908

2010-01-21

PRESSURE CONTROL IN DIRECT SMELTING PROCESS

#37

20090320647

2009-12-31

Pressure control in direct smelting process

#38

20090308205

2009-12-17

DIRECT SMELTING PLANT WITH WASTE HEAT RECOVERY UNIT

#39

20090308074

2009-12-17

Apparatus for generating energy using a sensible heat during manufacturing of molten iron and method for generating energy using the same

#40

20090133535

2009-05-28

PROCESS FOR PRODUCTION OF ELEMENTAL IRON

#41

20090095134

2009-04-16

Process and Equipment for Blast Furnace Ironmaking Using Pure Oxygen and Gas

#42

20090090216

2009-04-09

Process for producing molten iron and apparatus for producing molten iron