ClassID:

119292

C22B7/02 - CPC Classification

Classification description:

Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals Working-up flue dust

Recent Application in this class:
#1
20250084502
2025-03-13

ULTRA-HIGH TEMPERATURE CONTINUOUS REDUCTION OF METAL COMPOUND PARTICLES WITH SUBSEQUENT SELECTIVE SEPARATION

#2
20250034677
2025-01-30

Hydrometallurgical process for waste materials of the zinc and steel industries

#3
20240376569
2024-11-14

METHODS AND COMPOSITIONS FOR EXTRACTION OF RARE EARTH ELEMENTS FROM COAL ASH

#4
20240368729
2024-11-07

METHOD FOR REMOVING HALIDE FROM WAELZ OXIDE

#5
20240344173
2024-10-17

METHOD FOR MANUFACTURING HIGH-GRADE REFINED IRON OXIDE FROM IRON OXIDE AS BY-PRODUCT OF ZINC SMELTING PROCESS

#6
20240271247
2024-08-15

PREPARATION OF RARE EARTH METALS AND OTHER CHEMICALS FROM INDUSTRIAL WASTE COAL ASH

#7
20240240283
2024-07-18

PROCESS AND PLANT FOR RECYCLING ZINC OXIDE RESIDUES

#8
20240183006
2024-06-06

IONIC LIQUID BASED PROCESSES FOR EXTRACTION OF METALS

#9
20240093329
2024-03-21

Ultra-high temperature continuous reduction of metal compound particles with subsequent selective separation

#10
20240076759
2024-03-07

METHOD FOR RECOVERING LEAD FROM COPPER SMELTING DUST

#11
20240035114
2024-02-01

ZINC RECOVERY METHOD

#12
20230357886
2023-11-09

Methods for Selective Recovery of Rare Earth Elements and Metals from Coal Ash by Ionic Liquids

#13
20230332266
2023-10-19

METHOD OF REMOVING VOLATILE CONSTITUENTS FROM AN INDUSTRIAL DUST, AND VALUABLE MATERIAL-CONTAINING PRODUCT

#14
20230235427
2023-07-27

DESULFURISATION OF LEAD-CONTAINING WASTE

#15
20230192488
2023-06-22

Method of separating and recovering bromine from printed circuit board incineration ash by two-step process

#16
20230111491
2023-04-13

SYSTEM FOR TREATING TIN SMELTING INTERMEDIATE MATERIALS AND METHOD FOR TREATING SAME

#17
20220325376
2022-10-13

DESULFURISATION OF LEAD-CONTAINING WASTE

#18
20220195559
2022-06-23

Preparation of rare earth metals and other chemicals from industrial waste coal ash

#19
20220056554
2022-02-24

RECOVERY OF MATERIAL FROM WET INCINERATOR BOTTOM ASH

#20
20210388463
2021-12-16

Method and system for ash treatment

#21
20210371953
2021-12-02

Method for the treatment of iron-containing sludge

#22
20210324496
2021-10-21

Method for enriching precious metals from printed circuit board incineration ash from molten pool by circulating chlorination

#23
20210292869
2021-09-23

Process for recovering non-ferrous metals from industrial mineral residues

#24
20210245211
2021-08-12

Method for co-processing of waste incineration fly ash and chromium slag in landfill

#25
20210102273
2021-04-08

Methods and compositions for extraction of rare earth elements from coal ash

#26
20200222954
2020-07-16

Process for the purification of waste materials or industrial by-products comprising chlorine

#27
20200002785
2020-01-02

Methods for recovery of rare earth elements from coal

#28
20200002784
2020-01-02

Systems for acid digestion processes

#29
20190368004
2019-12-05

Methods for making zeolites

#30
20190177815
2019-06-13

Method for the treatment of iron-containing sludge

#31
20190153562
2019-05-23

Preparation of rare earth metals and other chemicals from industrial waste coal ash

#32
20190106767
2019-04-11

METHOD FOR PROCESSING STEELMAKING DUST, METHOD FOR PRODUCING ZINC, METHOD FOR PRODUCING IRON- AND STEELMAKING RAW MATERIAL, AND RAW MATERIAL OF IRON AND STEEL

#33
20180297856
2018-10-18

Vanadium recovery method

#34
20180251873
2018-09-06

Processes for preparing various metals and derivatives thereof from copper- and sulfur-containing material

#35
20180237312
2018-08-23

METHOD OF PRODUCING VANADIUM ELECTROLYTIC SOLUTION FOR REDOX FLOW CELL

#36
20180214890
2018-08-02

System and method for recovering desired materials and producing clean aggregate from incinerator ash

#37
20180135149
2018-05-17

Method for producing vanadium compound, method for producing vanadium solution, and method for producing redox flow battery electrolyte

#38
20180037834
2018-02-08

Charge carbon briquette for electric arc steelmaking furnace

#39
20180016659
2018-01-18

METHOD AND DEVICE FOR PROCESSING FLUE DUST

#40
20170356067
2017-12-14

Acid digestion processes for recovery of rare earth elements from coal and coal byproducts

#41
20170335416
2017-11-23

METHOD OF PRODUCTION AND APPARATUS FOR PRODUCTION OF REDUCED IRON

#42
20170314861
2017-11-02

Method for reducing molten raw materials, and device for carrying out said method

#43
20170209870
2017-07-27

SYSTEM AND METHOD FOR RECOVERING METALS FROM A WASTE STREAM

#44
20170058378
2017-03-02

PROCESS FOR REDUCING THE AMOUNTS OF ZINC (ZN) AND LEAD (PB) IN MATERIALS CONTAINING IRON (FE)

#45
20170051369
2017-02-23

Method for recycling-processing of dust generated in converter furnace, and method for manufacturing steel

#46
20160312333
2016-10-27

Method for recovering ash from waste incineration

#47
20160273069
2016-09-22

Methods for purifying aluminium ions

#48
20160265082
2016-09-15

PROCESSES FOR TREATING MAGNESIUM-CONTAINING MATERIALS

#49
20160237523
2016-08-18

Method and plant for removing arsenic and/or antimony from flue dusts

#50
20160222532
2016-08-04

Purification of coal and fly ash by ionic liquids

#51
20160215407
2016-07-28

ZINC PRODUCTION METHOD USING ELECTRIC FURNACE DUST AS RAW MATERIAL

#52
20160186278
2016-06-30

Method for Recycling-Processing of Dust Generated in Converter Furnace

#53
20160177416
2016-06-23

METHOD FOR RECOVERING ZINC FROM ELECTRIC FURNACE STEELMAKING DUST AND DEVICE FOR RECOVERING ZINC FROM ELECTRIC FURNACE STEELMAKING DUST

#54
20160138130
2016-05-19

Zinc production method

#55
20160075610
2016-03-17

Process for producing a zinc sulfate solution, obtained from steelworks powder and respective fertilizer inputs

#56
20160060727
2016-03-03

Precious metal recovery

#57
20160024611
2016-01-28

Method for recycling iron-containing by-products discharged from coal-based molten ironmaking process, system therefor, and reduced iron agglomeration system

#58
20150322542
2015-11-12

Method for producing reduced iron

#59
20150292055
2015-10-15

METHOD FOR MANUFACTURING REDUCED IRON

#60
20150259767
2015-09-17

METHOD FOR PRODUCING BASIC PRODUCTS FOR USE AS E.G. ALKALIZING AGENT (SODA LYE SUBSTITUTE), FOR GROUND STABILIZATION OR AS FILLER/PIGMENT

#61
20150252446
2015-09-10

Method for producing a high-purity nanometer zinc oxide from steel plant smoke and dust by ammonia decarburization

#62
20150225808
2015-08-13

Processes for preparing alumina and magnesium chloride by HCl leaching of various materials

#63
20150218670
2015-08-06

Extraction solvent for extracting metallic elements, method for producing same, and method for recovering metallic elements

#64
20150211094
2015-07-30

Method for processing ash, particularly fly ash

#65
20150139871
2015-05-21

Recovery of rare earth elements and compounds from coal ash

#66
20150125366
2015-05-07

Method for producing high-purity trimanganese tetraoxide and high-purity trimanganese tetraoxide produced by the method

#67
20150075328
2015-03-19

Processes for treating fly ashes

#68
20140374970
2014-12-25

Electric arc furnace dust recycling apparatus and method

#69
20140205519
2014-07-24

Process for recovering zinc and/or zinc oxide II

#70
20140174299
2014-06-26

Apparatus and method for treating exhaust gas

#71
20140090518
2014-04-03

Method for obtaining metals and rare earth metals from scrap

#72
20140041485
2014-02-13

Process for magnesium production

#73
20140023559
2014-01-23

Cleaning tool for cleaning particles contained in a slurry

#74
20130315804
2013-11-28

Fly Ash and Fly Ash Leachate Treatment

#75
20130283978
2013-10-31

Composition for collecting metal component

#76
20130220824
2013-08-29

Method for producing metal zinc

#77
20130192421
2013-08-01

Mill scale briquetting

#78
20130181075
2013-07-18

Method for recycling ash

#79
20130102806
2013-04-25

Method for synthesizing rare earth metal extractant

#80
20130047788
2013-02-28

METHOD AND DEVICE FOR PROCESSING FLUE DUST

#81
20130042722
2013-02-21

Electric arc furnace dust recycling apparatus and method

#82
20130034480
2013-02-07

Off gas treatment using a metal reactant alloy composition

#83
20130032005
2013-02-07

BENTONITE-BOUND COMPACTS OF UNDERSIZED OXIDIC IRON CARRIERS

#84
20120240725
2012-09-27

CARBON COMPOSITE AGGLOMERATE FOR PRODUCING REDUCED IRON AND METHOD FOR PRODUCING REDUCED IRON USING THE SAME

#85
20120234211
2012-09-20

Method for upgrading combustion ash

#86
20120200013
2012-08-09

Apparatus for manufacturing molten metal

#87
20120190908
2012-07-26

Process for treating particulate material containing heavy metal and an additive for use in such process

#88
20120186395
2012-07-26

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

#89
20120180598
2012-07-19

Process using fly ash to create chunks of raw material for iron or steel mill activities.

#90
20120167714
2012-07-05

Systems and methods for recycling steelmaking converter sludge

#91
20120144955
2012-06-14

METHOD AND APPARATUS FOR CARRYING OUT A METALLURGICAL PROCESS

#92
20120117864
2012-05-17

METHOD FOR REPROCESSING SOLID COMBUSTION PRODUCTS OF COAL

#93
20120103136
2012-05-03

APPARATUS AND METHOD FOR PRODUCING REDUCED IRON FROM ALKALI-CONTAINING IRONMAKING DUST SERVING AS MATERIAL

#94
20120076710
2012-03-29

Method and device for catchment of platinum group metals in a gas stream

#95
20120000832
2012-01-05

Platinum group metal recovery from powdery waste

#96
20110268632
2011-11-03

HYDROMETALLURGICAL METHOD FOR THE REUSE OF SECONDARY ZINC OXIDES RICH IN FLUORIDE AND CHLORIDE

#97
20110214535
2011-09-08

System and method of carbon capture and sequestration, environmental remediation, and metals recovery

#98
20110209615
2011-09-01

Apparatus and method for treating exhaust gas

#99
20110192255
2011-08-11

COMPOSITION FOR COLLECTING METAL COMPONENT

#100
20110179907
2011-07-28

Method for processing solid or molten materials

#101
20110113926
2011-05-19

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

#102
20110107874
2011-05-12

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

#103
20110100161
2011-05-05

Method for processing and recycling zinc-rich iron metallurgy side products

#104
20110052461
2011-03-03

Filter type trapping agent for volatile cesium compound and trapping method for volatile cesium compound thereof

#105
20110041652
2011-02-24

Method for producing pig iron

#106
20110036204
2011-02-17

METHOD FOR PRODUCING REDUCED IRON

#107
20110030842
2011-02-10

Method and apparatus for carrying out a metallurgical process

#108
20110005350
2011-01-13

Recovery method and recovery apparatus of thallium in cement production facilities

#109
20100300246
2010-12-02

Method of producing non-pyrophoric metallic iron

#110
20100284874
2010-11-11

Method for treating fly ash

#111
20100263484
2010-10-21

SMELTING FURNACE

#112
20100244337
2010-09-30

NOx Suppression Techniques for an Indurating Furnace

#113
20100242683
2010-09-30

PROCESS FOR TREATING EXHAUST GAS GENERATED DURING WATER-GRANULATION OF SLAG AND SYSTEM FOR SAID TREATMENT

#114
20100218646
2010-09-02

Producing method of direct reduced iron

#115
20100218420
2010-09-02

Method of producing carbonaceous material-containing briquettes using steel mill dust containing oil

#116
20100210449
2010-08-19

Composition of amorphous iron oxide hydroxide, desulfurizer comprising the same, and methods for preparing and regenerating the desulfurizer

#117
20100196230
2010-08-05

Method of processing non-ferrous smelting intermediate containing arsenic

#118
20100192726
2010-08-05

Method for reduction treatment of electric furnace dust

#119
20100186644
2010-07-29

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

#120
20100175510
2010-07-15

Production method for carbonaceous material-containing metal oxide briquettes

#121
20100175509
2010-07-15

Method of processing copper arsenic compound

#122
20100147109
2010-06-17

Method and device for producing binderless briquettes and briquettes comprising metal chips and metal dusts

#123
20100139456
2010-06-10

Reduction treatment apparatus and method of reduction treatment

#124
20100122607
2010-05-20

Method and apparatus for carrying out a metallurgical process

#125
20100101760
2010-04-29

Flue gas cooling and cleaning system

#126
20100077888
2010-04-01

PRODUCTION OF AN IRON POWDER COMMODITY

#127
20100024598
2010-02-04

Process for the treatment of contaminated metal residues and apparatus for implementing it

#128
20090312448
2009-12-17

Method of agglomeration

#129
20090304565
2009-12-10

Method for removing lead from cement burning furnace

#130
20090274597
2009-11-05

Method and device for catchment of platinum group metals in a gas stream

#131
20090272229
2009-11-05

Chemical process for recovery of metals contained in industrial steelworks waste

#132
20090246093
2009-10-01

Ultrasonic counter-current screw extractor for uranium recovery

#133
20090229410
2009-09-17

Processing parameters for operation of a channel induction furnace

#134
20090229409
2009-09-17

Feed material composition and handling in a channel induction furnace

#135
20090229408
2009-09-17

Use of a channel induction furnace to process at least one of a molten metal product, a vapor phase metal product and a slag product from a variety of feed materials

#136
20090229407
2009-09-17

Reductant addition in a channel induction furnace

#137
20090229406
2009-09-17

Slag control in a channel induction furnace

#138
20090193934
2009-08-06

PROCESS FOR DE-OILING STEELMAKING SLUDGES AND WASTEWATER STREAMS

#139
20090193933
2009-08-06

Pre-Processing Materials Using Encapsulation Technologies

#140
20090183543
2009-07-23

Thermal Process For Separating Heavy Metals From Ash In Agglomerated Form

#141
20090169413
2009-07-02

Process for recycling of steel industry iron bearing by-products, pellet obtained in that process and use thereof

#142
20090165599
2009-07-02

Method for recycling steelmaking dust

#143
20090145343
2009-06-11

Sorbents for removal of mercury from flue gas cross reference to related applications

#144
20090084401
2009-04-02

Apparatus for removing matte-sticking and method for using the apparatus

#145
20090078088
2009-03-26

Method of granulating raw material for sintering, and method of manufacturing sintered iron ore

#146
20090022639
2009-01-22

Method for the recovery of valuable metals and arsenic from a solution

#147
20080271599
2008-11-06

Device and method for oxidizing, reducing, calcining, sintering, or melting dusts

#148
20080271566
2008-11-06

Process for treating particulate material containing heavy metal and an additive for use in such process

#149
20080250980
2008-10-16

Agglomerated stone for using in shaft, corex or blast furnaces, method for producing agglomerated stones and use of fine and superfine iron ore dust

#150
20080236457
2008-10-02

Method for treating bottom ash

#151
20080210537
2008-09-04

Process for separating iron from other metals in iron containing feed stocks

#152
20080206127
2008-08-28

Iron oxide precipitation from acidic iron salt solutions

#153
20080196619
2008-08-21

Anti-corrosion pigments coming from dust of an electric arc furnace and containing sacrificial calcium

#154
20080148903
2008-06-26

Solidification product of dust generated during steel making and method for production thereof

#155
20080145289
2008-06-19

Process for the treatment of electric and other furnace dusts and residues containing zinc oxides and zinc ferrites

#156
20080118880
2008-05-22

Process and apparatus for calcining solids or sludges

#157
20080066579
2008-03-20

Treatment of steel plant sludges in a multiple-stage furnace

#158
20080047395
2008-02-28

Composition for a desulfurizer with a high sulfur capacity and the process of making the same

#159
20080011123
2008-01-17

Alkaline electro-hydrometallurgical process for Zn extraction from electric arc furnace dust

#160
20070297963
2007-12-27

Emission control systems and methods thereof

#161
20070274886
2007-11-29

REMOVAL AND RECOVERY OF DEPOSITS FROM COAL GASIFICATION SYSTEMS

#162
20070266824
2007-11-22

Using a slag conditioner to beneficiate bag house dust from a steel making furnace

#163
20070264178
2007-11-15

Waste solids handling

#164
20070256516
2007-11-08

Steel making material recycling system

#165
20070215019
2007-09-20

Method and Use of an Apparatus for Recovery of Metals or Metal Compounds

#166
20070214912
2007-09-20

Hydrometallurgical Separation Process Of Steel Mill Electric Arc Furnace (Eaf) Dust And The Pigments Obtained By The Process

#167
20070166225
2007-07-19

Method for producing products from source materials by leaching with functional electrolytic water

#168
20070163388
2007-07-19

Steel manufacturing dust solidified, process for producing the same and production apparatus therefor

#169
20070144308
2007-06-28

Briquette for use as metal stock and method for manufacturing the same

#170
20070107551
2007-05-17

Kish-derived graphitic heat spreaders and foils

#171
20070079667
2007-04-12

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

#172
20070062330
2007-03-22

Operation of iron oxide recovery furnace for energy savings, volatile metal removal and slag control

#173
20070041883
2007-02-22

Process for hydrometallurgical treatment of electric arc furnace dust

#174
20060278042
2006-12-14

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

#175
20060273497
2006-12-07

Method and installation for utilizing hydrocarbon-containing and iron-oxide-containing waste materials, in particular rolling scale sludges, and fine coals

#176
20060130611
2006-06-22

Process for de-oiling steelmaking sludges and wastewater streams

#177
20060101996
2006-05-18

Gas cleaning process and equipment therefor

#178
20060096419
2006-05-11

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

#179
20060088457
2006-04-27

Ultrasonic counter-current screw extractor for uranium recovery and process therefore

#180
20060060029
2006-03-23

Steel agglomeration containers (SACS)

#181
20060000309
2006-01-05

Supply recycling system and valuable-metal recovering system

#182
20050276737
2005-12-15

Mineralization of alkali metals, sulfur, and halogens

#183
20050274224
2005-12-15

Method and apparatus for carrying out a metallurgical process

#184
20050241439
2005-11-03

Metallurgical dust reclamation process

#185
20050238549
2005-10-27

Electronic controls for pollutant removal

#186
20050188787
2005-09-01

Pyrometallurgic process for the treatment of steelwork residues

#187
20050172758
2005-08-11

Steel refining material for reductive steel refining and granulation method thereof

#188
20050138964
2005-06-30

Facility for melting dusts

#189
20050116398
2005-06-02

Free flowing dry back-up insulating material

#190
20050112041
2005-05-26

Method for producing higher purity zinc oxide

#191
20050083988
2005-04-21

System and method of processing electric arc furnace dust

#192
20050077658
2005-04-14

Fume treatment system and method

#193
20050075236
2005-04-07

Mercury removal from activated carbon and/or fly ash

#194
17193028
2023-05-02

Methods and systems for extracting materials from fly ash