Osamu Nakai

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Chromium-containing water treatment method
- Patent number 10,442,715
- Issue date Oct 15, 2019
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Sulfuric acid adding facility and operation method therefor
- Patent number 10,351,929
- Issue date Jul 16, 2019
- Sumitomo Metal Mining Co., Ltd.
- Takashi Sakamoto
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Ore slurry pre-treatment method and ore slurry manufacturing method
- Patent number 10,273,558
- Issue date Apr 30, 2019
- Sumitomo Metal Mining Co., Ltd.
- Hirotaka Higuchi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for producing nickel sulfide and hydrometallurgical method f...
- Patent number 10,017,835
- Issue date Jul 10, 2018
- Sumitomo Metal Mining Co., Ltd.
- Shinichiro Nakamura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for adding starting material slurry and sulfuric acid to aut...
- Patent number 9,970,077
- Issue date May 15, 2018
- Sumitomo Metal Mining Co., Ltd.
- Satoshi Matsubara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Dezincification plant, method for operating dezincification plant,...
- Patent number 9,945,007
- Issue date Apr 17, 2018
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for operating flash vessel
- Patent number 9,896,740
- Issue date Feb 20, 2018
- Sumitomo Metal Mining Co., Ltd.
- Satoshi Matsubara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Neutralization method and neutralization plant
- Patent number 9,752,211
- Issue date Sep 5, 2017
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for a treatment for wastewater containing aluminum, magnesiu...
- Patent number 9,751,783
- Issue date Sep 5, 2017
- Sumitomo Mental Mining Co., Ltd.
- Hiroshi Kobayashi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Operation method for dezincification plant
- Patent number 9,751,035
- Issue date Sep 5, 2017
- SUMITOMO WIRING SYSTEMS, LIMITED
- Hiroyuki Mitsui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Autoclave apparatus used during high-pressure acid leaching process
- Patent number 9,732,400
- Issue date Aug 15, 2017
- Sumitomo Metal Mining Co., Ltd.
- Satoshi Matsubara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Processing device and processing method for hydrogen-sulphide-conta...
- Patent number 9,731,980
- Issue date Aug 15, 2017
- Sumitomo Metal Mining Co., Ltd.
- Takayuki Nakai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for shortening operation shutdown time of high pressure acid...
- Patent number 9,719,153
- Issue date Aug 1, 2017
- Sumitomo Metal Mining Co., Ltd.
- Keisuke Shibayama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Slurry-transporting facility and slurry transportation control method
- Patent number 9,651,200
- Issue date May 16, 2017
- Sumitomo Metal Mining Co., Ltd.
- Osamu Nakai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for effluent treatment in smelting of nickel oxide ore
- Patent number 9,561,972
- Issue date Feb 7, 2017
- Sumitomo Metal Mining Co., Ltd.
- Yasuo Yoshii
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Plant for manufacturing hydrogen sulfide gas and method for exhaust...
- Patent number 9,550,674
- Issue date Jan 24, 2017
- Sumitomo Metal Mining Co., Ltd.
- Osamu Nakai
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Hydrogen sulfide gas production plant and method for recovering and...
- Patent number 9,480,956
- Issue date Nov 1, 2016
- Sumitomo Metal Mining Co., Ltd.
- Osamu Nakai
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Flash vessel and method for operating same
- Patent number 9,464,341
- Issue date Oct 11, 2016
- Sumitomo Metal Mining Co., Ltd.
- Satoshi Matsubara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Ore slurry production method and metal refining method
- Patent number 9,410,226
- Issue date Aug 9, 2016
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Hydrogen sulfide gas production plant system and method for recover...
- Patent number 9,321,646
- Issue date Apr 26, 2016
- Sumitomo Metal Mining Co., Ltd.
- Osamu Nakai
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Liquid storage apparatus and method of controlling the pressure in...
- Patent number 9,139,890
- Issue date Sep 22, 2015
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for recovering chromite, and method for wet smelting of nick...
- Patent number 9,068,244
- Issue date Jun 30, 2015
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Method of producing ore slurry
- Patent number 9,068,241
- Issue date Jun 30, 2015
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Nickel recovery loss reduction method, hydrometallurgical method fo...
- Patent number 8,916,115
- Issue date Dec 23, 2014
- Sumitomo Metal Mining Co., Ltd.
- Satoshi Matsubara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Hydrometallurgical plant of nickel laterite ore and operation metho...
- Patent number 8,911,531
- Issue date Dec 16, 2014
- Sumitomo Metal Mining Co., Ltd.
- Osamu Nakai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for producing raw material for ferronickel smelting from low...
- Patent number 8,747,787
- Issue date Jun 10, 2014
- Sumitomo Metal Mining Co., Ltd.
- Hiroshi Kobayashi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Hydrometallurgical process for a nickel oxide ore
- Patent number 8,343,447
- Issue date Jan 1, 2013
- Sumitomo Metal Mining Co., Ltd.
- Keisuke Shibayama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Separation method for zinc sulfide
- Patent number 7,964,165
- Issue date Jun 21, 2011
- Sumitomo Metal Mining Co., Ltd.
- Osamu Nakai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR RECOVERING SCANDIUM
- Publication number 20210284547
- Publication date Sep 16, 2021
- Sumitomo Metal Mining Co., Ltd.
- Tatsuya Higaki
- C01 - INORGANIC CHEMISTRY
Information Patent Application
CHROMIUM-CONTAINING WATER TREATMENT METHOD
- Publication number 20180273411
- Publication date Sep 27, 2018
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR PRODUCING NICKEL SULFIDE AND HYDROMETALLURGICAL METHOD F...
- Publication number 20180044760
- Publication date Feb 15, 2018
- Sumitomo Metal Mining Co., Ltd.
- Shinichiro Nakamura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
ORE SLURRY PRE-TREATMENT METHOD AND ORE SLURRY MANUFACTURING METHOD
- Publication number 20180037971
- Publication date Feb 8, 2018
- Sumitomo Metal Mining Co., Ltd.
- Hirotaka Higuchi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
SULFURIC ACID ADDING FACILITY AND OPERATION METHOD THEREFOR
- Publication number 20180030569
- Publication date Feb 1, 2018
- Sumitomo Metal Mining Co., Ltd.
- Takashi Sakamoto
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
HYDROMETALLURGICAL PLANT FOR NICKEL OXIDE ORE AND METHOD FOR OPERAT...
- Publication number 20160024614
- Publication date Jan 28, 2016
- Sumitomo Metal Mining Co., Ltd.
- Satoshi MATSUBARA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
PLANT FOR MANUFACTURING HYDROGEN SULFIDE GAS AND METHOD FOR EXHAUST...
- Publication number 20160002038
- Publication date Jan 7, 2016
- Sumitomo Metal Mining Co., Ltd.
- Osamu NAKAI
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
OPERATION METHOD FOR DEZINCIFICATION PLANT
- Publication number 20150352475
- Publication date Dec 10, 2015
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki MITSUI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
SOLID-LIQUID-SEPARATION PROCESSING METHOD, AND HYDROMETALLURGICAL M...
- Publication number 20150337411
- Publication date Nov 26, 2015
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki MITSUI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
SLURRY-TRANSPORTING FACILITY AND SLURRY TRANSPORTATION CONTROL METHOD
- Publication number 20150338027
- Publication date Nov 26, 2015
- Sumitomo Metal Mining Co., Ltd.
- Osamu NAKAI
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information Patent Application
PROCESSING DEVICE AND PROCESSING METHOD FOR HYDROGEN-SULPHIDE-CONTA...
- Publication number 20150329379
- Publication date Nov 19, 2015
- Sumitomo Metal Mining Co., Ltd.
- Takayuki NAKAI
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
HEAVY-METAL REMOVAL METHOD AND HEAVY-METAL REMOVAL DEVICE
- Publication number 20150315046
- Publication date Nov 5, 2015
- Sumitomo Metal Mining Co., Ltd.
- Takayuki NAKAI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
NEUTRALIZATION TREATMENT METHOD AND NEUTRALIZING AGENT
- Publication number 20150299007
- Publication date Oct 22, 2015
- Sumitomo Metal Mining Co., Ltd.
- Takayuki NAKAI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR EFFLUENT TREATMENT IN SMELTING OF NICKEL OXIDE ORE
- Publication number 20150225269
- Publication date Aug 13, 2015
- SUMITOMO METAL MINING CO., LTD.
- Yasuo Yoshii
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
HYDROGEN SULFIDE GAS PRODUCTION PLANT SYSTEM AND METHOD FOR RECOVER...
- Publication number 20150175420
- Publication date Jun 25, 2015
- Sumitomo Metal Mining Co., Ltd.
- Osamu Nakai
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
AUTOCLAVE APPARATUS USED DURING HIGH-PRESSURE ACID LEACHING PROCESS
- Publication number 20150152521
- Publication date Jun 4, 2015
- Sumitomo Metal Mining Co., Ltd.
- Satoshi Matsubara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
FLASH VESSEL AND METHOD FOR OPERATING SAME
- Publication number 20150145183
- Publication date May 28, 2015
- Sumitomo Metal Mining Co., Ltd.
- Satoshi Matsubara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR ADDING STARTING MATERIAL SLURRY AND SULFURIC ACID TO AUT...
- Publication number 20150086450
- Publication date Mar 26, 2015
- Satoshi Matsubara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
HYDROGEN SULFIDE GAS PRODUCTION PLANT AND METHOD FOR RECOVERING AND...
- Publication number 20150044126
- Publication date Feb 12, 2015
- Sumitomo Metal Mining Co., Ltd.
- Osamu Nakai
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR OPERATING FLASH VESSEL
- Publication number 20150044112
- Publication date Feb 12, 2015
- Sumitomo Metal Mining Co., Ltd.
- Satoshi Matsubara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
DEZINCIFICATION PLANT, METHOD FOR OPERATING DEZINCIFICATION PLANT,...
- Publication number 20150023849
- Publication date Jan 22, 2015
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
NEUTRALIZATION METHOD AND NEUTRALIZATION PLANT
- Publication number 20150023850
- Publication date Jan 22, 2015
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR RECOVERING CHROMITE, AND METHOD FOR WET SMELTING OF NICK...
- Publication number 20150014225
- Publication date Jan 15, 2015
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Application
NICKEL RECOVERY LOSS REDUCTION METHOD, HYDROMETALLURGICAL METHOD FO...
- Publication number 20140170040
- Publication date Jun 19, 2014
- Sumitomo Metal Mining Co., Ltd.
- Satoshi Matsubara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
ORE SLURRY PRODUCTION METHOD AND METAL REFINING METHOD
- Publication number 20140151472
- Publication date Jun 5, 2014
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Application
METHOD FOR SHORTENING OPERATION SHUTDOWN TIME OF HIGH PRESSURE ACID...
- Publication number 20140048987
- Publication date Feb 20, 2014
- Sumitomo Metal Mining Co., Ltd.
- Keisuke Shibayama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD OF PRODUCING ORE SLURRY
- Publication number 20130269485
- Publication date Oct 17, 2013
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
WET SMELTING PLANT FOR NICKEL OXIDE ORE AND METHOD OF OPERATING THE...
- Publication number 20130207325
- Publication date Aug 15, 2013
- SUMITOMO METAL MINING CO., LTD.
- Hiroyuki Mitsui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
LIQUID STORAGE APPARATUS AND METHOD OF CONTROLLING THE PRESSURE IN...
- Publication number 20130199620
- Publication date Aug 8, 2013
- Sumitomo Metal Mining Co., Ltd.
- Hiroyuki Mitsui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR PRODUCING RAW MATERIAL FOR FERRONICKEL SMELTING FROM LOW...
- Publication number 20130074653
- Publication date Mar 28, 2013
- SIMITOMO METAL MINING CO., LTD.
- Hiroshi Kobayashi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Osamu Nakai

Person

Patents Grantslast 30 patents

Chromium-containing water treatment method

Sulfuric acid adding facility and operation method therefor

Ore slurry pre-treatment method and ore slurry manufacturing method

Method for producing nickel sulfide and hydrometallurgical method f...

Method for adding starting material slurry and sulfuric acid to aut...

Dezincification plant, method for operating dezincification plant,...

Method for operating flash vessel

Neutralization method and neutralization plant

Method for a treatment for wastewater containing aluminum, magnesiu...

Operation method for dezincification plant

Autoclave apparatus used during high-pressure acid leaching process

Processing device and processing method for hydrogen-sulphide-conta...

Method for shortening operation shutdown time of high pressure acid...

Slurry-transporting facility and slurry transportation control method

Method for effluent treatment in smelting of nickel oxide ore

Plant for manufacturing hydrogen sulfide gas and method for exhaust...

Hydrogen sulfide gas production plant and method for recovering and...

Flash vessel and method for operating same

Ore slurry production method and metal refining method

Hydrogen sulfide gas production plant system and method for recover...

Liquid storage apparatus and method of controlling the pressure in...

Method for recovering chromite, and method for wet smelting of nick...

Method of producing ore slurry

Nickel recovery loss reduction method, hydrometallurgical method fo...

Hydrometallurgical plant of nickel laterite ore and operation metho...

Method for producing raw material for ferronickel smelting from low...

Hydrometallurgical process for a nickel oxide ore

Separation method for zinc sulfide

Patents Applicationslast 30 patents

METHOD FOR RECOVERING SCANDIUM

CHROMIUM-CONTAINING WATER TREATMENT METHOD

METHOD FOR PRODUCING NICKEL SULFIDE AND HYDROMETALLURGICAL METHOD F...

ORE SLURRY PRE-TREATMENT METHOD AND ORE SLURRY MANUFACTURING METHOD

SULFURIC ACID ADDING FACILITY AND OPERATION METHOD THEREFOR

HYDROMETALLURGICAL PLANT FOR NICKEL OXIDE ORE AND METHOD FOR OPERAT...

PLANT FOR MANUFACTURING HYDROGEN SULFIDE GAS AND METHOD FOR EXHAUST...

OPERATION METHOD FOR DEZINCIFICATION PLANT

SOLID-LIQUID-SEPARATION PROCESSING METHOD, AND HYDROMETALLURGICAL M...

SLURRY-TRANSPORTING FACILITY AND SLURRY TRANSPORTATION CONTROL METHOD

PROCESSING DEVICE AND PROCESSING METHOD FOR HYDROGEN-SULPHIDE-CONTA...

HEAVY-METAL REMOVAL METHOD AND HEAVY-METAL REMOVAL DEVICE

NEUTRALIZATION TREATMENT METHOD AND NEUTRALIZING AGENT

METHOD FOR EFFLUENT TREATMENT IN SMELTING OF NICKEL OXIDE ORE

HYDROGEN SULFIDE GAS PRODUCTION PLANT SYSTEM AND METHOD FOR RECOVER...

AUTOCLAVE APPARATUS USED DURING HIGH-PRESSURE ACID LEACHING PROCESS

FLASH VESSEL AND METHOD FOR OPERATING SAME

METHOD FOR ADDING STARTING MATERIAL SLURRY AND SULFURIC ACID TO AUT...

HYDROGEN SULFIDE GAS PRODUCTION PLANT AND METHOD FOR RECOVERING AND...

METHOD FOR OPERATING FLASH VESSEL

DEZINCIFICATION PLANT, METHOD FOR OPERATING DEZINCIFICATION PLANT,...

NEUTRALIZATION METHOD AND NEUTRALIZATION PLANT

METHOD FOR RECOVERING CHROMITE, AND METHOD FOR WET SMELTING OF NICK...

NICKEL RECOVERY LOSS REDUCTION METHOD, HYDROMETALLURGICAL METHOD FO...

ORE SLURRY PRODUCTION METHOD AND METAL REFINING METHOD

METHOD FOR SHORTENING OPERATION SHUTDOWN TIME OF HIGH PRESSURE ACID...

METHOD OF PRODUCING ORE SLURRY

WET SMELTING PLANT FOR NICKEL OXIDE ORE AND METHOD OF OPERATING THE...

LIQUID STORAGE APPARATUS AND METHOD OF CONTROLLING THE PRESSURE IN...

METHOD FOR PRODUCING RAW MATERIAL FOR FERRONICKEL SMELTING FROM LOW...