ClassID:

118784

C21B15/00 - CPC Classification

Classification description:

Other processes for the manufacture of iron from iron compounds

Sub-classes:
Recent Application in this class:
#1
20260145934
2026-05-28

PROCESS FOR PRODUCING HYDROGEN AND GRAPHITIC CARBON FROM HYDROCARBONS

#2
20260098318
2026-04-09

RECOVERY OF MATERIALS FROM LITHIUM IRON PHOSPHATE BATTERY WASTE

#3
20260009101
2026-01-08

METAL ORE REDUCTION REACTOR WITH SELF-GENERATING REDUCTANT

#4
20250154616
2025-05-15

METHOD FOR PRODUCING HIGH IRON-CONTENT PRODUCTS FROM IRON ORE FINES AND BIOMASS, AND PRODUCTS THEREOF

#5
20250146099
2025-05-08

REMOVAL OF IMPURITIES CONTAINED IN IRON ORES

#6
20250034667
2025-01-30

Chemical Comminution - Iron Making Process

#7
20240401168
2024-12-05

Process for Transition Metal Oxide Reduction

#8
20240327212
2024-10-03

PROCESS FOR PRODUCING HYDROGEN AND GRAPHITIC CARBON FROM HYDROCARBONS

#9
20240279831
2024-08-22

METHOD AND ELECTROCHEMICAL SYSTEM FOR RECYCLING SPENT LITHIUM-ION BATTERY

#10
20240043960
2024-02-08

Process for transition metal oxide reduction

#11
20230227307
2023-07-20

PROCESS FOR PRODUCING HYDROGEN AND GRAPHITIC CARBON FROM HYDROCARBONS

#12
20230002853
2023-01-05

Production of Iron

#13
20230002852
2023-01-05

Production of iron

#14
20220073808
2022-03-10

Multivalent iron bio-inhibitor from waste bauxite residue to control reservoir souring

#15
20210310089
2021-10-07

PROCESS AND SYSTEM FOR EXTRACTION OF IRON OXIDE FROM ORE

#16
20190241990
2019-08-08

Production of iron

#17
20190233302
2019-08-01

Method of recovering iron from zinc sulphate solution

#18
20190084839
2019-03-21

Processing method for lithium ion battery scrap

#19
20180282840
2018-10-04

Recovery of scandium values through selective precipitation of hematite and basic iron sulfates from acid leachates

#20
20180265948
2018-09-20

Rare earth element extraction from coal

#21
20180065850
2018-03-08

Process for producing hydrogen and graphitic carbon from hydrocarbons

#22
20170240432
2017-08-24

Preparation method of calcium carbonate with high purity from inorganic materials containing alkali metals or alkali earth metals

#23
20170218479
2017-08-03

Method for converting and separating vanadium, titanium, and iron from vanadium-titanium-iron concentrate in one step

#24
20170218477
2017-08-03

Processes for the selective separation of iron and aluminium

#25
20170197842
2017-07-13

Using method of waste silicon slurry and products obtained therefrom

#26
20170191139
2017-07-06

Integration of molten carbonate fuel cells in iron and steel processing

#27
20170159190
2017-06-08

Hydrometallurgical process to produce pure magnesium metal and various by-products

#28
20170152585
2017-06-01

Method for producing pellets and method for producing iron-nickel alloy

#29
20170005374
2017-01-05

Process for recycling li-ion batteries

#30
20160376681
2016-12-29

PROCESS TO THERMALLY UPGRADE METAL-CONTAINING LIMONITE OR SAPROLITE ORES VIA MAGNETIC SEPARATION AND THE USE OF THE MAGNETIC CONCENTRATE AS SEEDS

#31
20160351931
2016-12-01

Integrated electrical power and chemical production using fuel cells

#32
20160265082
2016-09-15

PROCESSES FOR TREATING MAGNESIUM-CONTAINING MATERIALS

#33
20160260530
2016-09-08

Short-process method for preparing sintered NdFeB magnets with high magnetic properties recycling from NdFeB sludge

#34
20160258038
2016-09-08

Leaching of minerals

#35
20160244344
2016-08-25

APPARATUS AND SYSTEM FOR TREATING ACID MINE DRAINAGE USING ELECTROCHEMICAL REACTION

#36
20160222532
2016-08-04

Purification of coal and fly ash by ionic liquids

#37
20160153071
2016-06-02

Processes for recovering rare earth elements from aluminum-bearing materials

#38
20160153070
2016-06-02

Systems and methodologies for direct acid leaching of scandium-bearing ores

#39
20160138128
2016-05-19

METHOD FOR BIOLEACHING A METAL PRESENT IN A MATERIAL

#40
20160115564
2016-04-28

Method for bioleaching and solvent extraction with selective recovery of copper and zinc from polymetal concentrates of sulfides

#41
20160102383
2016-04-14

System and method for the recovery of metal values from slags, drosses, and other metal-bearing materials

#42
20160076113
2016-03-17

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

#43
20160060726
2016-03-03

Green process for the preparation of pure iron

#44
20150307956
2015-10-29

METHOD OF EXTRACTING METAL IONS FROM RED MUD BY SONICATION

#45
20150275324
2015-10-01

Capsules of viable biomining microorganisms, with alginate and iron ions called biosigma bioleaching seeds (BBS) and their use for inoculation of these microorganisms in bioleaching processes

#46
20150252269
2015-09-10

Integration of molten carbonate fuel cells in fischer-tropsch synthesis

#47
20150239049
2015-08-27

Synthesis of nanostructures

#48
20150218669
2015-08-06

Method for leaching nickel, cobalt and iron from a nickel laterite ore

#49
20150194661
2015-07-09

Plasma synthesis of metal and lithium fluoride nanostructures

#50
20150105480
2015-04-16

Method for recycling noble metals from Fischer-Tropsch products

#51
20150024204
2015-01-22

NOVEL PROCESS OF PREPARING NANO METAL AND THE PRODUCTS THEREOF

#52
20150007697
2015-01-08

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

#53
20140343173
2014-11-20

Integration of molten carbonate fuel cells in Fischer-Tropsch synthesis

#54
20140342251
2014-11-20

Integrated power generation and carbon capture using fuel cells

#55
20140331820
2014-11-13

Method for reducing slag

#56
20140272638
2014-09-18

Integration of molten carbonate fuel cells in methanol synthesis

#57
20140272637
2014-09-18

Integration of molten carbonate fuel cells in Fischer-Tropsch synthesis

#58
20140272634
2014-09-18

Integrated power generation and chemical production using fuel cells

#59
20140272632
2014-09-18

Integration of molten carbonate fuel cells in fischer-tropsch synthesis

#60
20140272629
2014-09-18

Integration of molten carbonate fuel cells in a refinery setting

#61
20140272628
2014-09-18

Integrated electrical power and chemical production using fuel cells

#62
20140272626
2014-09-18

Integrated power generation and chemical production using fuel cells at a reduced electrical efficiency

#63
20140272625
2014-09-18

Integrated operation of molten carbonate fuel cells

#64
20140272624
2014-09-18

Integrated carbon capture and chemical production using fuel cells

#65
20140272621
2014-09-18

Integration of molten carbonate fuel cells for synthesis of nitrogen compounds

#66
20140272619
2014-09-18

Integrated power generation and carbon capture using fuel cells

#67
20140272617
2014-09-18

Integrated power generation and carbon capture using fuel cells

#68
20140260798
2014-09-18

Integration of molten carbonate fuel cells in iron and steel processing

#69
20140260311
2014-09-18

Integration of molten carbonate fuel cells with fermentation processes

#70
20140224068
2014-08-14

Method and device for producing pig iron

#71
20140037520
2014-02-06

Process for treating spent pickle liquor and/or ferrous chloride

#72
20080302655
2008-12-11

Electrochemical Method and Apparatus For Removing Oxygen From a Compound or Metal

#73
20080011126
2008-01-17

Production of ferronickel

#74
20050217432
2005-10-06

Apparatus and method for the reduction of metals

#75
20050109162
2005-05-26

Apparatus and method for the reduction of metals

#76
15862620
2020-12-08

Process and system for extraction of iron oxide from ore

#77
15358188
2017-03-21

Mercaptanized dicyclopentadiene compositions and use thereof as a mining chemical collector

#78
14190160
2015-02-03

Low temperature production of steel/carbon product