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CPC
C22B19/24
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Parent Industries
C
CHEMISTRY METALLURGY
C22
Metallurgy
C22B
PRODUCTION AND REFINING OF METALS PRETREATMENT OF RAW MATERIALS
C22B19/00
Obtaining zinc or zinc oxide
Current Industry
C22B19/24
with leaching with alkaline solutions
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Patents Grants
last 30 patents
Information
Patent Grant
Method of separating and recovering bromine from printed circuit bo...
Patent number
11,858,822
Issue date
Jan 2, 2024
Beijing University of Technology
Dean Pan
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Processes for recovering non-ferrous metals from solid matrices
Patent number
10,533,238
Issue date
Jan 14, 2020
METALS TECHNOLOGY DEVELOPMENT COMPANY LLC
Massimo Giuseppe Maccagni
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Integrated recovery of metals from complex substrates
Patent number
10,487,374
Issue date
Nov 26, 2019
YAVA TECHNOLOGIES INC.
Madhav Dahal
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for recovering zinc and/or zinc oxide II
Patent number
RE47673
Issue date
Oct 29, 2019
Steel Dynamics Investments LLC
Raymond Walter Shaw
Information
Patent Grant
Processes for recovering non-ferrous metals from solid matrices
Patent number
9,945,006
Issue date
Apr 17, 2018
METALS TECHNOLOGY DEVELOPMENT COMPANY, LLC
Massimo Giuseppe Maccagni
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for producing a high-purity nanometer zinc oxide from steel...
Patent number
9,528,170
Issue date
Dec 27, 2016
SICHUAN XINHONG TECHNOLOGY CO., LTD
Shangquan Chen
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Method for producing a high-purity nanometer zinc oxide from low-gr...
Patent number
9,512,502
Issue date
Dec 6, 2016
SICHUAN XINHONG TECHNOLOGY CO., LTD
Shangquan Chen
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Process for recovering zinc and/or zinc oxide II
Patent number
9,284,624
Issue date
Mar 15, 2016
METALLIC WASTE SOLUTIONS PTY LTD.
Raymond Walter Shaw
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Selective leach recovery of zinc from a composite sulphide ore depo...
Patent number
8,961,911
Issue date
Feb 24, 2015
Yava Technologies Inc.
Madhav Dahal
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for leaching zinc from a zinc ore
Patent number
8,871,001
Issue date
Oct 28, 2014
Metaleach Limited
Matthew Leslie Sutcliffe
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for purifying zinc oxide
Patent number
8,524,177
Issue date
Sep 3, 2013
Canadus Chemical LLC
Michel Laurin
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for ammoniacal leaching
Patent number
8,388,729
Issue date
Mar 5, 2013
Metaleach Limited
Nicholas J. Welham
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for extracting zinc from aqueous ammoniacal solutions
Patent number
8,323,596
Issue date
Dec 4, 2012
Metaleach Limited
Garry Mervyn Johnston
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Alkaline electro-hydrometallurgical process for Zn extraction from...
Patent number
7,815,709
Issue date
Oct 19, 2010
Tecnologias de Reciclaje S.A.
Duberlis Correa Peña y Lillo
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for the purification of zinc oxide controlling particle size
Patent number
6,783,744
Issue date
Aug 31, 2004
Allan S Myerson
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for the purification of zinc oxide controlling particle size
Patent number
6,696,029
Issue date
Feb 24, 2004
Allan S Myerson
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for reclaiming constituents from an industrial waste stream
Patent number
6,517,789
Issue date
Feb 11, 2003
Allan S. Myerson
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for treating steel works dust by wet process
Patent number
6,500,229
Issue date
Dec 31, 2002
Recupac
Gilles Roux
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for reducing the formation of Zn(NH4)4Cl2 from ZnO/NH4Cl sol...
Patent number
6,423,281
Issue date
Jul 23, 2002
Allan S. Myerson
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for recycling industrial waste streams containing zinc compo...
Patent number
6,264,903
Issue date
Jul 24, 2001
Allan S. Myerson
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for recovery of zinc from sphalerite containing ores or con...
Patent number
6,162,346
Issue date
Dec 19, 2000
N.V. Union Miniere S.A.
Sybolt Brouwer
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for upgrading waste material comprising sheet metal with a z...
Patent number
5,980,725
Issue date
Nov 9, 1999
Compagnie Europeenne de Dezingage
Bernard Campenon
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Beneficiation of furnace dust for the recovery of chemical and meta...
Patent number
5,942,198
Issue date
Aug 24, 1999
Metals Recycling Technologies Corp.
Allan S. Myerson
C21 - METALLURGY OF IRON
Information
Patent Grant
Production of more concentrated iron product from industrial waste...
Patent number
5,855,645
Issue date
Jan 5, 1999
Metals Recycling Technologies Corp.
Allan S. Myerson
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing an iron feedstock from industrial furnace wast...
Patent number
5,683,488
Issue date
Nov 4, 1997
Metals Recycling Technologies Corp.
Allan S. Myerson
C21 - METALLURGY OF IRON
Information
Patent Grant
Methods for recycling electric arc furnace dust
Patent number
5,667,553
Issue date
Sep 16, 1997
Complete Recovery Process, LLC
Joseph F. Keegel
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for the production of a feedstock containing usable iron con...
Patent number
5,582,631
Issue date
Dec 10, 1996
Metals Recycling Technologies Corp.
Allan S. Myerson
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing an enriched iron feedstock from industrial fur...
Patent number
5,571,306
Issue date
Nov 5, 1996
Metals Recycling Technologies Corp.
Allan S. Myerson
C21 - METALLURGY OF IRON
Information
Patent Grant
Methods for recycling electric arc furnace dust
Patent number
5,538,532
Issue date
Jul 23, 1996
Complete Recovery Process
Joseph F. Keegel
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for treating waste streams containing zinc
Patent number
5,464,596
Issue date
Nov 7, 1995
Metals Recycling Technologies Corp.
Allan S. Myerson
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
A METHOD OF SEPARATING AND RECOVERING BROMINE FROM PRINTED CIRCUIT...
Publication number
20230192488
Publication date
Jun 22, 2023
BEIJING UNIVERSITY OF TECHNOLOGY
DEAN PAN
C01 - INORGANIC CHEMISTRY
Information
Patent Application
AMMONIUM COMPLEX SYSTEM-BASED METHOD FOR SEPARATING AND PURIFYING L...
Publication number
20230124749
Publication date
Apr 20, 2023
GreenNovo Environmental Technology Co., Ltd
Yan LUO
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
INTEGRATED RECOVERY OF METALS FROM COMPLEX SUBSTRATES
Publication number
20200165697
Publication date
May 28, 2020
YAVA TECHNOLOGIES INC.
Madhav Dahal
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
METHOD FOR RECOVERING ZINC FROM SOLUTION
Publication number
20180237886
Publication date
Aug 23, 2018
METALEACH LIMITED
Nicholas James WELHAM
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
PROCESSES FOR RECOVERING NON-FERROUS METALS FROM SOLID MATRICES
Publication number
20180171432
Publication date
Jun 21, 2018
Metals Technology Development Company LLC
Massimo Giuseppe MACCAGNI
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
SYSTEM AND METHOD FOR THE RECOVERY OF METAL VALUES FROM SLAGS, DROS...
Publication number
20160102383
Publication date
Apr 14, 2016
Timothy Roy Hymer
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
INTEGRATED RECOVERY OF METALS FROM COMPLEX SUBSTRATES
Publication number
20160053342
Publication date
Feb 25, 2016
YAVA TECHNOLOGIES INC.
Madhav Dahal
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
PROCESS FOR RECOVERING ZINC AND/OR ZINC OXIDE II
Publication number
20140205519
Publication date
Jul 24, 2014
METALLIC WASTE SOLUTIONS PTY LTD
Raymond Walter Shaw
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
SELECTIVE LEACH RECOVERY OF ZINC FROM A COMPOSITE SULPHIDE ORE DEPO...
Publication number
20130216456
Publication date
Aug 22, 2013
YAVA TECHNOLOGIES INC.
Madhav Dahal
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
PROCESS FOR PURIFYING ZINC OXIDE
Publication number
20130064743
Publication date
Mar 14, 2013
Canadus Chemical LLC
Michel Laurin
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR LEACHING ZINC FROM A ZINC ORE
Publication number
20130025412
Publication date
Jan 31, 2013
METALEACH LIMITED
Matthew Leslie Sutcliffe
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR EXTRACTING ZINC FROM AQUEOUS AMMONIACAL SOLUTIONS
Publication number
20110293493
Publication date
Dec 1, 2011
METALEACH LIMITED
Garry Mervyn Johnston
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR AMMONIACAL LEACHING
Publication number
20100180728
Publication date
Jul 22, 2010
METALEACH LIMITED
Nicholas J. Welham
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Alkaline electro-hydrometallurgical process for Zn extraction from...
Publication number
20080011123
Publication date
Jan 17, 2008
Tecnologias de Reciclaje S.A., a corporation of Chile
Duberlis Correa Pena y Lillo
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Process for upgrading an ore or concentrate
Publication number
20070178031
Publication date
Aug 2, 2007
ZINIFEX LIMITED
Paul Christopher Freeman
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Process for hydrometallurgical treatment of electric arc furnace dust
Publication number
20070041883
Publication date
Feb 22, 2007
Brendan McDevitt
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for the purification of zinc oxide controlling particle size
Publication number
20040071619
Publication date
Apr 15, 2004
Allan S. Myerson
C21 - METALLURGY OF IRON
Information
Patent Application
Method for upgrading steel plant dust
Publication number
20030010156
Publication date
Jan 16, 2003
Farouk Tedjar
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for reducing the formation of Zn(NH4)4Cl2 from ZnO/NH4Cl sol...
Publication number
20010005496
Publication date
Jun 28, 2001
Allan S. Myerson
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...