ClassID:

119405

C22B19/30 - CPC Classification

Classification description:

Obtaining zinc or zinc oxide from metallic residues or scraps

Recent Application in this class:
#1
20260055480
2026-02-26

METHOD FOR PROCESSING MATERIALS CONTAINING IRON AND ZINC

#2
20260043110
2026-02-12

PROCESS FOR HEAVY METAL REMOVAL FROM IRON- AND STEELMAKING FLUE DUST

#3
20250382681
2025-12-18

DEZINCING METHOD AND DEZINCING APPARATUS

#4
20250290173
2025-09-18

METHOD FOR PROCESSING MATERIALS CONTAINING IRON AND ZINC

#5
20250115976
2025-04-10

METHOD OF RECYCLING MIXED ALLOY SCRAP PARTS

#6
20250084503
2025-03-13

TREATMENT OF ZINC LEACH RESIDUE

#7
20250011897
2025-01-09

Method for the Separation of Zinc and Iron from Electric Arc Furnace Baghouse Dust

#8
20240327936
2024-10-03

METHOD FOR RECOVERING IRON AND VALUABLE METALS FROM ELECTRIC ARC FURNACE DUST

#9
20240263269
2024-08-08

IMPROVED METHOD FOR RECYCLING ZINC (ZN)

#10
20240240283
2024-07-18

PROCESS AND PLANT FOR RECYCLING ZINC OXIDE RESIDUES

#11
20230295765
2023-09-21

SUSTAINABLE METHOD FOR RECYCLING SMELTING WORKS DUSTS AND SLUDGES TO PRODUCE IRON-CONTAINING, HEAVY-METAL-DEPLETED RECLAIMED MATERIALS WITH RECOVERY OF LEAD AND ZINC

#12
20230037130
2023-02-02

Method for disposal of waste printed circuit board thermal cracking slag and smelting soot

#13
20220325375
2022-10-13

METAL RECOVERY PROCESS

#14
20210292869
2021-09-23

Process for recovering non-ferrous metals from industrial mineral residues

#15
20200392000
2020-12-17

Method of recovering bromide from bromine-containing smelting ash

#16
20200347481
2020-11-05

Chemical process for the recovery of alkaline and zinc-carbon battery components

#17
20200262712
2020-08-20

Method of pretreatment and bromine recovery of PCB incineration ash

#18
20200222954
2020-07-16

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

#19
20190136341
2019-05-09

Process and system for plasma-induced selective extraction and recovery of species from a matrix

#20
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

#21
20170283907
2017-10-05

Fuming furnace with lead collecting and discharging function

#22
20170226610
2017-08-10

Device and method for recovering a non-ferrous metal from hot dross

#23
20170170532
2017-06-15

METHOD FOR RECYCLING VALUABLE METALS FROM SPENT BATTERIES

#24
20160215407
2016-07-28

ZINC PRODUCTION METHOD USING ELECTRIC FURNACE DUST AS RAW MATERIAL

#25
20160177416
2016-06-23

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

#26
20160160319
2016-06-09

Treatment method of chlorine-containing zinc oxide secondary material

#27
20160138130
2016-05-19

Zinc production method

#28
20150252446
2015-09-10

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

#29
20150225811
2015-08-13

Recovery of zinc from lead slag

#30
20130220824
2013-08-29

Method for producing metal zinc

#31
20120198964
2012-08-09

Waste treatment furnace and method

#32
20120186395
2012-07-26

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

#33
20120114539
2012-05-10

Metal recovery process

#34
20120097557
2012-04-26

Container having a sensor adapter

#35
20120031234
2012-02-09

Method and plant for the production of zinc dust

#36
20110271796
2011-11-10

Method for the selective acidic dezincification of steel scrap

#37
20110268632
2011-11-03

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

#38
20110113926
2011-05-19

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

#39
20110107874
2011-05-12

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

#40
20110100161
2011-05-05

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

#41
20110042868
2011-02-24

Process and apparatus for recovery of non-ferrous metals from zinc residues

#42
20110042371
2011-02-24

Dezincing Apparatus and Dezincing Method

#43
20110041652
2011-02-24

Method for producing pig iron

#44
20110036204
2011-02-17

METHOD FOR PRODUCING REDUCED IRON

#45
20100300246
2010-12-02

Method of producing non-pyrophoric metallic iron

#46
20100288646
2010-11-18

Method of recovering valuable metals from IZO scrap

#47
20100288645
2010-11-18

Method of recovering valuable metals from IZO scrap

#48
20100288076
2010-11-18

Device and method for obtaining non-ferrous metals

#49
20100282615
2010-11-11

Method of recovering valuable metals from IZO scrap

#50
20100242675
2010-09-30

Modified induction furnace and process for removing zinc-containing metallurgical waste, with recovery of the metals therefrom

#51
20100189637
2010-07-29

Method for the valorisation of zinc-and sulphate-rich residue

#52
20100139456
2010-06-10

Reduction treatment apparatus and method of reduction treatment

#53
20090272229
2009-11-05

Chemical process for recovery of metals contained in industrial steelworks waste

#54
20090229410
2009-09-17

Processing parameters for operation of a channel induction furnace

#55
20090229409
2009-09-17

Feed material composition and handling in a channel induction furnace

#56
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

#57
20090229407
2009-09-17

Reductant addition in a channel induction furnace

#58
20090229406
2009-09-17

Slag control in a channel induction furnace

#59
20090217787
2009-09-03

WASTE TREATMENT FURNACE AND METHOD

#60
20090169413
2009-07-02

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

#61
20090165599
2009-07-02

Method for recycling steelmaking dust

#62
20080196551
2008-08-21

Separation of Metal Values in Zinc Leaching Residues

#63
20080066579
2008-03-20

Treatment of steel plant sludges in a multiple-stage furnace

#64
20080011123
2008-01-17

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

#65
20070125197
2007-06-07

Recovery of non-ferrous metals from zinc residues

#66
20070095169
2007-05-03

Process and apparatus for recovery of non-ferrous metals from zinc residues

#67
20070079667
2007-04-12

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

#68
20070062330
2007-03-22

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

#69
20070041883
2007-02-22

Process for hydrometallurgical treatment of electric arc furnace dust

#70
20070022842
2007-02-01

Device and method for enhancing zinc yield from bottom dross

#71
20060278042
2006-12-14

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

#72
20060096419
2006-05-11

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

#73
20050284261
2005-12-29

Batchwise working-up recycling materials in a rotatable reactor

#74
20050188787
2005-09-01

Pyrometallurgic process for the treatment of steelwork residues

#75
20050112041
2005-05-26

Method for producing higher purity zinc oxide

#76
20050083988
2005-04-21

System and method of processing electric arc furnace dust