Roasting processes

Industry

CPC
C22B1/02

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Parent Industries

CCHEMISTRY METALLURGY C22Metallurgy C22BPRODUCTION AND REFINING OF METALS PRETREATMENT OF RAW MATERIALS C22B1/00Preliminary treatment of ores or scrap

Current Industry

C22B1/02Roasting processes

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Mixed rare earth concentrate mineral and suspended mineral phase tr...
- Patent number 12,195,826
- Issue date Jan 14, 2025
- Northeastern University
- Peng Gao
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for producing aqueous solution containing nickel, cobalt and...
- Patent number 12,163,204
- Issue date Dec 10, 2024
- KOREA ZINC CO., LTD.
- Heon Sik Choi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for recovering non-ferrous metals from industrial mineral r...
- Patent number 12,157,928
- Issue date Dec 3, 2024
- Vito N.V.
- Frantisek Kukurugya
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for selectively extracting lithium from retired battery and...
- Patent number 12,136,714
- Issue date Nov 5, 2024
- GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD.
- Bo Li
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Battery recycling
- Patent number 12,136,713
- Issue date Nov 5, 2024
- FORM ENERGY, INC.
- Nicholas Reed Perkins
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for dissolving lithium compound, method for manufacturing li...
- Patent number 12,123,074
- Issue date Oct 22, 2024
- JX METALS CIRCULAR SOLUTIONS CO., LTD.
- Hirotaka Ariyoshi
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method for recovering valuable metals from spent lithium ion batteries
- Patent number 12,113,187
- Issue date Oct 8, 2024
- GEM CO., LTD.
- Kaihua Xu
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for recycling lithium iron phosphate waste battery
- Patent number 12,107,245
- Issue date Oct 1, 2024
- GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD.
- Haijun Yu
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Sealing system for a machine for thermal treatment of bulk material
- Patent number 12,071,676
- Issue date Aug 27, 2024
- Metso USA Inc.
- Jeffrey M. Pancher
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for safely oxidizing and roasting neodymium-iron-boron powde...
- Patent number 12,043,882
- Issue date Jul 23, 2024
- GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD.
- Jianfeng Xu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for extracting valuable metal from low-matte nickel converte...
- Patent number 12,018,346
- Issue date Jun 25, 2024
- GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD.
- Haijun Yu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Lithium ion battery scrap treatment method
- Patent number 11,961,980
- Issue date Apr 16, 2024
- JX Metals Corporation
- Junichi Arakawa
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method for clean metallurgy of molybdenum
- Patent number 11,959,152
- Issue date Apr 16, 2024
- Central South University
- Zhongwei Zhao
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for obtaining vanadium oxide from a gasifier slag field
- Patent number 11,945,728
- Issue date Apr 2, 2024
- Reliance Industries Limited
- Sateesh Daggupati
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for extracting lithium from carbonate clay type lithium ore...
- Patent number 11,939,645
- Issue date Mar 26, 2024
- INSTITUTE OF GEOCHEMISTRY, CHINESE ACADEMY OF SCIENCES
- Hanjie Wen
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for recycling battery by incomplete extraction
- Patent number 11,920,213
- Issue date Mar 5, 2024
- GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD.
- Haijun Yu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Additive for reducing the roasting temperature of fluxed magnetite...
- Patent number 11,891,677
- Issue date Feb 6, 2024
- NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Jie Li
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for recovering vanadium in the form of iron vanadate from a...
- Patent number 11,879,165
- Issue date Jan 23, 2024
- Reliance Industries Limited
- Sateesh Daggupati
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Treatment system and method for deep utilization of dolomite resources
- Patent number 11,866,803
- Issue date Jan 9, 2024
- Central South University
- Liyuan Chai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for recovering valuable metal
- Patent number 11,851,729
- Issue date Dec 26, 2023
- Sumitomo Metal Mining Co., Ltd.
- Yu Yamashita
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for recovering valuable elements from precombustion coal-bas...
- Patent number 11,821,054
- Issue date Nov 21, 2023
- University of Kentucky Research Foundation
- Rick Honaker
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Ethylene degradation catalyst and preparation method and use thereof
- Patent number 11,813,591
- Issue date Nov 14, 2023
- China Energy Investment Corporation Limited
- Ge Li
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method for recovering valuable metal
- Patent number 11,807,914
- Issue date Nov 7, 2023
- Sumitomo Metal Mining Co., Ltd.
- Yu Yamashita
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of processing and treatment of alunite ores
- Patent number 11,753,697
- Issue date Sep 12, 2023
- Elsad Tagijev
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for dissolving lithium compound, method for manufacturing li...
- Patent number 11,718,895
- Issue date Aug 8, 2023
- JX Nippon Mining & Metals Corporation
- Hirotaka Ariyoshi
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method for recovering lithium from lithium ion battery scrap
- Patent number 11,702,719
- Issue date Jul 18, 2023
- JX Nippon Mining & Metals Corporation
- Junichi Arakawa
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method for removing phosphorus from phosphorus-containing substance
- Patent number 11,649,514
- Issue date May 16, 2023
- JFE Steel Corporation
- Kenji Nakase
- C21 - METALLURGY OF IRON
Information Patent Grant
Integrated pressure oxidative leach of copper sulphidic feed with c...
- Patent number 11,584,975
- Issue date Feb 21, 2023
- Sherritt International Corporation
- Preston Carl Holloway
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method and system for separation of rare earth elements from second...
- Patent number 11,525,170
- Issue date Dec 13, 2022
- TATA Consultancy Services Limited
- Santosh Vasant Daware
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Methods for treating lithium-containing materials
- Patent number 11,519,081
- Issue date Dec 6, 2022
- NEMASKA LITHIUM INC.
- Jean-François Magnan
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PREPARING BATTERIES TO BE RECYCLED AND PROCESSING PLANT
- Publication number 20250112287
- Publication date Apr 3, 2025
- SCHOLZ RECYCLING GMBH
- Uwe HERMSDORF
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HEAT TREATMENT METHOD FOR LITHIUM ION BATTERY WASTE
- Publication number 20250105386
- Publication date Mar 27, 2025
- JX METALS CIRCULAR SOLUTIONS CO., LTD
- Hiroshi MIYANAGA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHODS FOR PREPARING TWO-DIMENSIONAL SHEET-LIKE Li4SiO4 ADSORBENTS...
- Publication number 20250074777
- Publication date Mar 6, 2025
- CHANGZHOU UNIVERSITY
- Xiazhang LI
- C01 - INORGANIC CHEMISTRY
Information Patent Application
IMPURITY CONTROL IN LITHIUM-ION BATTERY RECYCLING
- Publication number 20250070290
- Publication date Feb 27, 2025
- Kee-Chan Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LITHIUM-ION BATTERY RECYCLING METHOD
- Publication number 20250070296
- Publication date Feb 27, 2025
- NOVOCYCLE TEKNOLOJI SANAYI TICARET ANONIM SIRKETI
- Fatih Bosna
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR PREPARING NICKEL SULFATE AQUEOUS SOLUTION FROM NICKEL-CO...
- Publication number 20250066871
- Publication date Feb 27, 2025
- KOREA ZINC CO., LTD.
- Heon Sik CHOI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
ALL-IN-ONE NICKEL RECOVERING METHOD FOR NICKEL METAL RECOVERY FROM...
- Publication number 20250066878
- Publication date Feb 27, 2025
- KOREA ZINC CO., LTD.
- Heon Sik CHOI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
ALL-IN-ONE NICKEL RECOVERING METHOD FOR NICKEL RECOVERY FROM RAW MA...
- Publication number 20250066875
- Publication date Feb 27, 2025
- KOREA ZINC CO., LTD.
- Heon Sik CHOI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
ALL-IN-ONE NICKEL RECOVERING METHOD FOR RECOVERY OF NICKEL OXIDE FR...
- Publication number 20250066876
- Publication date Feb 27, 2025
- KOREA ZINC CO., LTD.
- Heon Sik CHOI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
ALL-IN-ONE NICKEL RECOVERING METHOD FOR NICKEL HYDROXIDE RECOVERY F...
- Publication number 20250066877
- Publication date Feb 27, 2025
- KOREA ZINC CO., LTD.
- Heon Sik CHOI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Geothermally Powered Hydrometallurgical Zinc Production
- Publication number 20250059623
- Publication date Feb 20, 2025
- EnhancedGEO Holdings, LLC
- Greg Lindberg
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
RECOVERY METHOD OF LITHIUM ION
- Publication number 20250059624
- Publication date Feb 20, 2025
- POSCO Co., Ltd
- Gi-Chun HAN
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
RECYCLING METHOD FOR WASTE LITHIUM ION SECONDARY BATTERIES AND ELEC...
- Publication number 20250062432
- Publication date Feb 20, 2025
- AK TREE CO., LTD.
- Hyo Soo AHN
- B22 - CASTING POWDER METALLURGY
Information Patent Application
Arrangement for Heating a Process Gas of an Iron Ore Pelletizing Plant
- Publication number 20250052497
- Publication date Feb 13, 2025
- HYBRIT Development AB
- Christian Fredriksson
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR RECOVERING METALS FROM LITHIUM ION BATTERY WASTE
- Publication number 20250043386
- Publication date Feb 6, 2025
- JX Metals Corporation
- Hirotaka ARIYOSHI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METAL LEACHING METHOD
- Publication number 20250043382
- Publication date Feb 6, 2025
- JX ADVANCED METALS CORPORATION
- Naoki HIGUCHI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR REMOVING IMPURITY AND RECOVERING HIGH-CONCENTRATION LITH...
- Publication number 20250038287
- Publication date Jan 30, 2025
- ECOPRO MATERIALS CO., LTD.
- Dong Hee KIM
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
OXIDATIVE AND REDUCTIVE LEACHING METHODS
- Publication number 20250034676
- Publication date Jan 30, 2025
- BASF SE
- Vincent Smith
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
RECYCLED POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD OF PRODUCING TH...
- Publication number 20250033993
- Publication date Jan 30, 2025
- LG ENERGY SOLUTION, LTD.
- Yongsik SEO
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
MANUFACTURING METHOD FOR BATTERY MATERIAL
- Publication number 20250038289
- Publication date Jan 30, 2025
- Prime Planet Energy & Solutions, Inc.
- Koji OKUDA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR PREPARING SELF DOPED TITANIUM-NIOBIUM OXIDE NEGATIVE ELE...
- Publication number 20250027184
- Publication date Jan 23, 2025
- CHINA UNIVERSITY OF PETROLEUM-BEIJING
- Guoyong Huang
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR RECOVERING VALUABLE MATERIALS FROM BATTERIES
- Publication number 20250030074
- Publication date Jan 23, 2025
- University of Kentucky Research Foundation
- Joshua Werner
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR RECYCLING IRON ORE TAILING AND USE THEREOF
- Publication number 20250011900
- Publication date Jan 9, 2025
- BAOTOU RESEARCH INSTITUTE OF RARE EARTHS
- Chunlei GUO
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR PROCESSING ALLOY
- Publication number 20250003027
- Publication date Jan 2, 2025
- Sumitomo Metal Mining Co., Ltd.
- Hirofumi Shouji
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
RECOVERY METHOD OF VALUABLE METAL IN POSITIVE ELECTRODE SHEET OF LI...
- Publication number 20250007025
- Publication date Jan 2, 2025
- GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD
- Shibao Ouyang
- C01 - INORGANIC CHEMISTRY
Information Patent Application
SYSTEM FOR RECOVERING LITHIUM OF WASTE CATHODE MATERIAL
- Publication number 20240392410
- Publication date Nov 28, 2024
- DOOSAN ENERBILITY CO., LTD.
- Jang Yong YOU
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR PRODUCING VALUABLE METAL
- Publication number 20240387894
- Publication date Nov 21, 2024
- Sumitomo Metal Mining Co., Ltd.
- Yu Yamashita
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
PROCESS FOR DRY BENEFICIATION OF BAUXITE MINERALS BY ELECTROSTATIC...
- Publication number 20240376563
- Publication date Nov 14, 2024
- SEPARATION TECHNOLOGIES LLC
- Kyle P. Flynn
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
METHOD FOR REMOVING CHLORINE IN ZINC HYDROMETALLURGY
- Publication number 20240376565
- Publication date Nov 14, 2024
- KOREA ZINC CO., LTD.
- Min Cheol KIM
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD AND APPARATUS FOR EXTRACTION OF CEMENTED CARBIDE BODIES FROM...
- Publication number 20240368728
- Publication date Nov 7, 2024
- SANDVIK MINING AND CONSTRUCTION TOOLS AB
- Petter NILSEN
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Roasting processes

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Mixed rare earth concentrate mineral and suspended mineral phase tr...

Method for producing aqueous solution containing nickel, cobalt and...

Process for recovering non-ferrous metals from industrial mineral r...

Method for selectively extracting lithium from retired battery and...

Battery recycling

Method for dissolving lithium compound, method for manufacturing li...

Method for recovering valuable metals from spent lithium ion batteries

Method for recycling lithium iron phosphate waste battery

Sealing system for a machine for thermal treatment of bulk material

Method for safely oxidizing and roasting neodymium-iron-boron powde...

Method for extracting valuable metal from low-matte nickel converte...

Lithium ion battery scrap treatment method

Method for clean metallurgy of molybdenum

Process for obtaining vanadium oxide from a gasifier slag field

Method for extracting lithium from carbonate clay type lithium ore...

Method for recycling battery by incomplete extraction

Additive for reducing the roasting temperature of fluxed magnetite...

Process for recovering vanadium in the form of iron vanadate from a...

Treatment system and method for deep utilization of dolomite resources

Method for recovering valuable metal

Method for recovering valuable elements from precombustion coal-bas...

Ethylene degradation catalyst and preparation method and use thereof

Method for recovering valuable metal

Method of processing and treatment of alunite ores

Method for dissolving lithium compound, method for manufacturing li...

Method for recovering lithium from lithium ion battery scrap

Method for removing phosphorus from phosphorus-containing substance

Integrated pressure oxidative leach of copper sulphidic feed with c...

Method and system for separation of rare earth elements from second...

Methods for treating lithium-containing materials

Patents Applicationslast 30 patents

METHOD FOR PREPARING BATTERIES TO BE RECYCLED AND PROCESSING PLANT

HEAT TREATMENT METHOD FOR LITHIUM ION BATTERY WASTE

METHODS FOR PREPARING TWO-DIMENSIONAL SHEET-LIKE Li4SiO4 ADSORBENTS...

IMPURITY CONTROL IN LITHIUM-ION BATTERY RECYCLING

LITHIUM-ION BATTERY RECYCLING METHOD

METHOD FOR PREPARING NICKEL SULFATE AQUEOUS SOLUTION FROM NICKEL-CO...

ALL-IN-ONE NICKEL RECOVERING METHOD FOR NICKEL METAL RECOVERY FROM...

ALL-IN-ONE NICKEL RECOVERING METHOD FOR NICKEL RECOVERY FROM RAW MA...

ALL-IN-ONE NICKEL RECOVERING METHOD FOR RECOVERY OF NICKEL OXIDE FR...

ALL-IN-ONE NICKEL RECOVERING METHOD FOR NICKEL HYDROXIDE RECOVERY F...

Geothermally Powered Hydrometallurgical Zinc Production

RECOVERY METHOD OF LITHIUM ION

RECYCLING METHOD FOR WASTE LITHIUM ION SECONDARY BATTERIES AND ELEC...

Arrangement for Heating a Process Gas of an Iron Ore Pelletizing Plant

METHOD FOR RECOVERING METALS FROM LITHIUM ION BATTERY WASTE

METAL LEACHING METHOD

METHOD FOR REMOVING IMPURITY AND RECOVERING HIGH-CONCENTRATION LITH...

OXIDATIVE AND REDUCTIVE LEACHING METHODS

RECYCLED POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD OF PRODUCING TH...

MANUFACTURING METHOD FOR BATTERY MATERIAL

METHOD FOR PREPARING SELF DOPED TITANIUM-NIOBIUM OXIDE NEGATIVE ELE...

METHOD FOR RECOVERING VALUABLE MATERIALS FROM BATTERIES

METHOD FOR RECYCLING IRON ORE TAILING AND USE THEREOF

METHOD FOR PROCESSING ALLOY

RECOVERY METHOD OF VALUABLE METAL IN POSITIVE ELECTRODE SHEET OF LI...

SYSTEM FOR RECOVERING LITHIUM OF WASTE CATHODE MATERIAL

METHOD FOR PRODUCING VALUABLE METAL

PROCESS FOR DRY BENEFICIATION OF BAUXITE MINERALS BY ELECTROSTATIC...

METHOD FOR REMOVING CHLORINE IN ZINC HYDROMETALLURGY

METHOD AND APPARATUS FOR EXTRACTION OF CEMENTED CARBIDE BODIES FROM...