ClassID:

119336

C22B13/045 - CPC Classification

Classification description:

Obtaining lead by wet processes Recovery from waste materials

Recent Application in this class:
#1
20250327150
2025-10-23

ENERGY EFFICIENT SALT-FREE RECOVERY OF METAL FROM DROSS

#2
20250226473
2025-07-10

METHODS FOR PURIFYING AND RECYCLING LEAD FROM SPENT LEAD-ACID BATTERIES

#3
20250137090
2025-05-01

Compositions and processes for the extraction of metals using non-aqueous solvents

#4
20240274911
2024-08-15

LEADED SLAG CLEANING AND RECOVERY OF USEFUL METALS AND REUSE OF SLAG

#5
20240194962
2024-06-13

SYSTEMS AND METHODS FOR CLOSED-LOOP RECYCLING OF A LIQUID COMPONENT OF A LEACHING MIXTURE WHEN RECYCLING LEAD FROM SPENT LEAD-ACID BATTERIES

#6
20240190713
2024-06-13

SYSTEMS AND PROCESSES FOR PRODUCING AMMONIUM SULFATE FROM WASTE STREAMS

#7
20240150868
2024-05-09

METHOD FOR THE TREATMENT OF RESIDUES FROM THE ZINC AND LEAD PRODUCTION INDUSTRY, WITH OBTAINMENT OF EXPLOITABLE PRODUCTS AND SECONDARY RAW MATERIALS, ACCORDING TO THE STRATEGIES OF THE CIRCULAR ECONOMY

#8
20240076759
2024-03-07

METHOD FOR RECOVERING LEAD FROM COPPER SMELTING DUST

#9
20240043961
2024-02-08

APPARATUS FOR RECOVERY OF BASE METALS FROM GRID METALLICS

#10
20240021905
2024-01-18

Methods for purifying and recycling lead from spent lead-acid batteries

#11
20230357888
2023-11-09

ENERGY EFFICIENT SALT-FREE RECOVERY OF METAL FROM DROSS

#12
20230313400
2023-10-05

Systems And Methods For Aqueous Recovery Of Lead From Lead Acid Batteries With Reduced Electrolyte Demand

#13
20230307733
2023-09-28

PROCESS WITH LOW ENVIRONMENTAL IMPACT AND REDUCED ENERGY CONSUMPTION FOR THE RECOVERY OF LEAD FROM THE ELECTRODE PASTES OF END-OF-LIFE BATTERIES

#14
20230304125
2023-09-28

METHOD FOR RECOVERING VALUABLE MATERIAL FROM PEROVSKITE SOLAR CELL

#15
20230279520
2023-09-07

Hydrometallurgical Processes For Battery Recycling

#16
20230235427
2023-07-27

DESULFURISATION OF LEAD-CONTAINING WASTE

#17
20230192488
2023-06-22

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

#18
20230137480
2023-05-04

HYDROMETALLURGICAL METHOD FOR SIMULTANEOUSLY EXTRACTING METALS AND GYPSUM FROM THE DUST OF A STEELWORKS ELECTRIC ARC FURNACE

#19
20230037016
2023-02-02

MOLTEN LEAD SCRAP SUBMERGENCE APPARATUS

#20
20220341051
2022-10-27

Systems and methods for aqueous recovery of lead from lead acid batteries with reduced electrolyte demand

#21
20220325376
2022-10-13

DESULFURISATION OF LEAD-CONTAINING WASTE

#22
20210371953
2021-12-02

Method for the treatment of iron-containing sludge

#23
20210317001
2021-10-14

Recycling of lead- and tin-based materials

#24
20210280923
2021-09-09

Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries

#25
20210246528
2021-08-12

Process for the desulphurization of materials and/or residues containing lead sulphate employing an amino compound

#26
20210107824
2021-04-15

SYSTEM AND METHOD FOR RECLAMATION OF LEADED GLASS

#27
20210025026
2021-01-28

Process for recovering lead from a lead pastel and use thereof in a process for recovering lead-acid accumulator components

#28
20210010102
2021-01-14

Metal cementing apparatus and continuous cementation method by means of same

#29
20200411921
2020-12-31

Methods for purifying and recycling lead from spent lead-acid batteries

#30
20200392000
2020-12-17

Method of recovering bromide from bromine-containing smelting ash

#31
20200377971
2020-12-03

Method for preparing lead directly from lead-containing material by solid phase reaction

#32
20200332392
2020-10-22

ENERGY EFFICIENT SALT-FREE RECOVERY OF METAL FROM DROSS

#33
20200280111
2020-09-03

Hydrometallurgical method for recycling lead from spent lead-acid battery paste

#34
20200262712
2020-08-20

Method of pretreatment and bromine recovery of PCB incineration ash

#35
20200235443
2020-07-23

Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries

#36
20200165697
2020-05-28

INTEGRATED RECOVERY OF METALS FROM COMPLEX SUBSTRATES

#37
20200109090
2020-04-09

Systems and methods for producing potassium sulfate

#38
20190301031
2019-10-03

Systems and methods for continuous alkaline lead acid battery recycling

#39
20190032170
2019-01-31

Method for comprehensive recovery of silver-containing lead slag

#40
20180291477
2018-10-11

Recovery of valuable or toxic metals from silicon solar cells

#41
20180179650
2018-06-28

Electrochemical recycling of lead-based materials

#42
20180127852
2018-05-10

Systems and methods for recovery of lead from lead acid batteries

#43
20180037973
2018-02-08

Method for the treatment of metallic particles and objects contaminated with metallic particles

#44
20180036568
2018-02-08

Method for the treatment of an object contaminated with metallic particles

#45
20180036567
2018-02-08

Method for the treatment of an object contaminated with metallic particles

#46
20170338531
2017-11-23

Systems and methods for purifying and recycling lead from spent lead-acid batteries

#47
20170338530
2017-11-23

Methods for purifying and recycling lead from spent lead-acid batteries

#48
20170275772
2017-09-28

Process for the treatment of end-of-life cathode-ray tubes

#49
20170275734
2017-09-28

Hydrothermal process for the treatment of lead glass with recovery of lead metal, soluble and insoluble silicates and silica

#50
20170271725
2017-09-21

Method for recovering lead oxide from waste lead paste

#51
20170170531
2017-06-15

Hydrometallurgical electrowinning of lead from spent lead-acid batteries

#52
20170159191
2017-06-08

Systems and methods for continuous alkaline lead acid battery recycling

#53
20170117597
2017-04-27

Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries

#54
20170058378
2017-03-02

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

#55
20160308261
2016-10-20

ZERO LEAD POLLUTION PROCESS FOR RECYCLING USED LEAD ACID BATTERIES

#56
20160244862
2016-08-25

Process for the selective recovery of lead and silver

#57
20160222487
2016-08-04

RECOVERY OF METALS

#58
20160160316
2016-06-09

Method for directly recovering lead oxide used for a lead-acid battery cathode from waste lead paste

#59
20160160315
2016-06-09

Method for recycling lead oxide-containing waste material

#60
20160079636
2016-03-17

Systems and methods for selectively separating and separately processing portions of lead-acid batteries

#61
20160053343
2016-02-25

Method for concentrating metals from scrap containing metal

#62
20160053342
2016-02-25

Integrated recovery of metals from complex substrates

#63
20150368750
2015-12-24

Systems and methods for the hydrometallurgical recovery of lead from spent lead-acid batteries and the preparation of lead oxide for use in new lead-acid batteries

#64
20150368749
2015-12-24

Systems and methods for isolating a particulate product when recycling lead from spent lead-acid batteries

#65
20150368748
2015-12-24

Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries

#66
20150368747
2015-12-24

Methods for purifying and recycling lead from spent lead-acid batteries

#67
20150367311
2015-12-24

Systems and methods for purifying and recycling lead from spent lead-acid batteries

#68
20150050199
2015-02-19

REMOVAL OF LEAD FROM SOLID MATERIALS

#69
20140154157
2014-06-05

Process of Treating End-of-Life Cathode Ray Tubes for Lead and Soluble Silicates Recovery

#70
20140131219
2014-05-15

Recovering lead from a mixed oxidized material

#71
20130186236
2013-07-25

Energy Efficient Salt-Free Recovery Of Metal From Dross

#72
20130129585
2013-05-23

Method for recycling lead from waste glass containing lead

#73
20130026049
2013-01-31

METHOD FOR RECOVERING VALUABLE METALS

#74
20120325899
2012-12-27

Dross removal

#75
20120247509
2012-10-04

Method of washing anode slime from lead-bismuth alloy electrolysis

#76
20120186397
2012-07-26

RECLAIMING OF LEAD IN FORM OF HIGH PURITY LEAD COMPOUND FROM RECOVERED ELECTRODE PASTE SLIME OF DISMISSED LEAD BATTERIES AND/OR OF LEAD MINERALS

#77
20110083970
2011-04-14

Process for producing metallic lead starting from desulfurized pastel

#78
20100215556
2010-08-26

NANOPORE REACTIVE ADSORBENTS FOR THE HIGH-EFFICIENCY REMOVAL OF WASTE SPECIES

#79
20100193467
2010-08-05

METHOD FOR THE TREATMENT AND REUSE OF A STRIPPER SOLUTION

#80
20100147930
2010-06-17

Dross Removal

#81
20100043600
2010-02-25

Reclaiming of lead in form of high purity lead compound from recovered electrode paste slime of dismissed lead batteries and/or of lead minerals

#82
20100040938
2010-02-18

Lead recycling

#83
20100034715
2010-02-11

Recovery of lead in form of high purity lead carbonates from spent lead batteries incl. electrode paste

#84
20090261147
2009-10-22

Dross Removal

#85
20090136829
2009-05-28

Method and apparatus for reducing lead sulfate compound used in lead-acid battery

#86
20070028720
2007-02-08

Process for the high yield recovery of lead from spent lead-acid batteries with reduced associated production of slag and gaseous emissions

#87
20060018819
2006-01-26

Desulfurization process of pastel and grids of lead accumulators

#88
20050220686
2005-10-06

Remediation of heavy metals in ammunition traps and shooting ranges

#89
13902187
2015-03-17

Process for obtaining highly pure litharge from lead acid battery paste