C21B11/08 - CPC Classification Index

ClassID:

118753 ⎘

C21B11/08 - CPC Classification

Classification description:

Making pig-iron other than in blast furnaces in hearth-type furnaces

Recent Application in this class:

20210040572

2021-02-11

Method for off-gas composition control in a metal smelting apparatus

20180087120

2018-03-29

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

20170145527

2017-05-25

System and Method for Forming Spherical Silica-Based Proppant and Pig Iron Utilizing Mining Slag

20170081745

2017-03-23

Direct smelting process

20170073781

2017-03-16

Production method of granular metallic iron

20160304977

2016-10-20

Device for producing partially reduced iron

20160237514

2016-08-18

METHOD FOR MANUFACTURING IRON NUGGETS

20160208350

2016-07-21

SMELTING APPARATUS AND METHOD OF USING THE SAME

20150259758

2015-09-17

Starting a smelting process

#10

20150203931

2015-07-23

METHOD FOR PRODUCING METALLIC IRON

#11

20150027275

2015-01-29

Process for manufacturing reduced iron agglomerates

#12

20140345425

2014-11-27

Starting a smelting process

#13

20140318320

2014-10-30

Starting a smelting process

#14

20130291685

2013-11-07

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

#15

20130118307

2013-05-16

DEVICE FOR PRODUCING GRANULAR METAL IRON AND PROCESS FOR PRODUCING GRANULAR METAL IRON

#16

20130116105

2013-05-09

Direct smelting process

#17

20130048906

2013-02-28

IRON-CARBON COMPOSITIONS

#18

20120192679

2012-08-02

System and method for producing metallic iron

#19

20120160060

2012-06-28

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

#20

20120031232

2012-02-09

Method and apparatus for coproduction of pig iron and high quality syngas

#21

20120013054

2012-01-19

System and method for producing metallic iron

#22

20110017021

2011-01-27

Lance for injecting solid material into a vessel

#23

20100287992

2010-11-18

FOREHEARTH

#24

20100148410

2010-06-17

Linear hearth furnace system and methods regarding same

#25

20090309275

2009-12-17

Direct smelting plant

#26

20090218737

2009-09-03

Direct smelting plant

#27

20090194919

2009-08-06

Direct smelting plant

#28

20090166937

2009-07-02

Direct smelting plant

#29

20090158892

2009-06-25

System and method for producing metallic iron

#30

20090155155

2009-06-18

Cupola flue gas treatment

#31

20090031858

2009-02-05

Cold start-up method for a direct smelting process

#32

20090004611

2009-01-01

LOW VELOCITY STAGED COMBUSTION FOR FURNACE ATMOSPHERE CONTROL

#33

20080302213

2008-12-11

Forehearth

#34

20080302211

2008-12-11

Linear hearth furnace system and methods regarding same

#35

20060243583

2006-11-02

High pressure dry coal slurry extrusion pump

#36

20060157899

2006-07-20

Single vessel blast furnace and steel making/gasifying apparatus and process

#37

20050229748

2005-10-20

Linear hearth furnace system and methods regarding same