ClassID:

118764

C21B13/006 - CPC Classification

Classification description:

Making spongy iron or liquid steel, by direct processes Starting from ores containing non ferrous metallic oxides

Recent Application in this class:
#1
20260055477
2026-02-26

A DIRECT REDUCTION FACILITY AND A METHOD OF DIRECT REDUCTION OF METAL OXIDE

#2
20250137080
2025-05-01

METHOD FOR MANUFACTURING CARBONACEOUS MATERIAL-CONTAINING AGGLOMERATE ORE, AND METHOD FOR MANUFACTURING MOLTEN PIG IRON

#3
20250051875
2025-02-13

HYDROGEN-BASED VALORISATION OF METAL-CONTAINING FEED MATERIALS TO EXTRACT METALS

#4
20240360525
2024-10-31

Enrichment of Iron from Bauxite Waste in Chemical Looping Combustion

#5
20220389536
2022-12-08

PLASMA INDUCED FUMING FURNACE

#6
20210310089
2021-10-07

PROCESS AND SYSTEM FOR EXTRACTION OF IRON OXIDE FROM ORE

#7
20180361395
2018-12-20

Multi-stage suspension magnetizing roasting-magnetic separation system device and method for refractory iron ore

#8
20180087120
2018-03-29

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

#9
20170306444
2017-10-26

Method for smelting nickel oxide ore

#10
20160348199
2016-12-01

Pneumatic ore charging

#11
20150275323
2015-10-01

PRODUCTION OF PIG IRON

#12
20140352494
2014-12-04

Methods and systems for producing ferro-chrome in a duplex furnace

#13
20140331821
2014-11-13

Producing of pig iron from iron-containing materials

#14
20130081516
2013-04-04

Direct production of iron slabs and nuggets from ore without pelletizing or briquetting

#15
20120285295
2012-11-15

METHOD FOR PRODUCING METALLIC IRON NUGGETS

#16
20120263619
2012-10-18

Method for preparing a metallic article having an other additive constituent, without any melting

#17
20120200013
2012-08-09

Apparatus for manufacturing molten metal

#18
20120186395
2012-07-26

METHOD FOR PRODUCING BRIQUETTES, METHOD FOR PRODUCING REDUCED METAL, AND METHOD FOR SEPARATING ZINC OR LEAD

#19
20120064371
2012-03-15

Refractory lining for titanium ore beneficiation

#20
20120036960
2012-02-16

Direct processing of metallic ore concentrates into ferroalloys

#21
20110154949
2011-06-30

Method for operating a furnace and device for carrying out the method

#22
20110113926
2011-05-19

Method of reduction treatment of metal oxides or steelmaking waste and method of concentrating and recovering zinc and/or lead

#23
20110107874
2011-05-12

Method for producing briquette, method for producing reduced metal, and method for separating zinc or lead

#24
20110036204
2011-02-17

METHOD FOR PRODUCING REDUCED IRON

#25
20110024681
2011-02-03

TITANIUM OXIDE-CONTAINING AGGLOMERATE FOR PRODUCING GRANULAR METALLIC IRON

#26
20110023656
2011-02-03

METHOD FOR PRODUCING GRANULAR METALLIC IRON

#27
20100300247
2010-12-02

Method for producing reduced metal and slag containing oxidized nonferrous metal using an upgraded coal

#28
20100288078
2010-11-18

Process for producing stainless steel using direct reduction furnaces for ferrochrome and ferronickel on the primary side of a converter

#29
20100285326
2010-11-11

ORE REDUCTION PROCESS AND TITANIUM OXIDE AND IRON METALLIZATION PRODUCT

#30
20100237280
2010-09-23

Ore reduction process using carbon based materials having a low sulfur content and titanium oxide and iron metallization product therefrom

#31
20100192726
2010-08-05

Method for reduction treatment of electric furnace dust

#32
20100164150
2010-07-01

Method and system for producing metallic iron nuggets

#33
20100139456
2010-06-10

Reduction treatment apparatus and method of reduction treatment

#34
20100107818
2010-05-06

System and method for producing metallic iron nodules

#35
20090230598
2009-09-17

Co-Production of Steel, Titanium and High Grade Oxide

#36
20090217784
2009-09-03

Ore reduction process and titanium oxide and iron metallization product

#37
20090175753
2009-07-09

Method and system for producing metallic iron nuggets

#38
20080292488
2008-11-27

Method for preparing a metallic article having an other additive constituent, without any melting

#39
20080069763
2008-03-20

Method for manufacturing titanium oxide-containing slag

#40
20070113708
2007-05-24

FERRONICKEL AND PROCESS FOR PRODUCING RAW MATERIAL FOR FERRONICKEL SMELTING

#41
20070079667
2007-04-12

METHOD OF PRODUCING STAINLESS STEEL BY RE-USING WASTE MATERIAL OF STAINLESS STEEL PRODUCING PROCESS

#42
20070068344
2007-03-29

Ore reduction process and titanium oxide and iron metallization product

#43
20060278042
2006-12-14

Method of producing stainless steel by re-using waste material of stainless steel producing process

#44
20060278041
2006-12-14

Method for producing improved coal for use in metallurgy, and method for producing reduced metal and slag containing oxidized nonferrous metal

#45
20060150775
2006-07-13

Method and system for producing metallic iron nuggets

#46
20060150774
2006-07-13

Method and system for producing metallic iron nuggets

#47
20060150773
2006-07-13

Method and system for producing metallic iron nuggets

#48
20060150772
2006-07-13

Method and system for producing metallic iron nuggets

#49
20060123952
2006-06-15

Process and apparatus for extracting zinc

#50
20060096419
2006-05-11

Method for reduction treatment of metal oxide or ironmaking waste and method for concentration and recovery zinc and/or lead

#51
20050217426
2005-10-06

Producing nickel-base, cobalt-base, iron-base, iron-nickel-base, or iron-nickel-cobalt-base alloy articles by reduction of nonmetallic precursor compounds and melting

#52
20050211020
2005-09-29

Ferronickel and process for producing raw material for ferronickel smelting

#53
20050028643
2005-02-10

Method for producing titanium oxide containing slag

#54
15862620
2020-12-08

Process and system for extraction of iron oxide from ore