The Experts below are selected from a list of 25971 Experts worldwide ranked by ideXlab platform
Toyohisa Fujita - One of the best experts on this subject based on the ideXlab platform.
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Development of seafloor Mineral Processing for Seafloor Massive Sulfides
2016 Techno-Ocean (Techno-Ocean), 2016Co-Authors: Yasuharu Nakajima, Takumi Sato, Blair Thornton, Gjergj Dodbiba, Toyohisa FujitaAbstract:Seafloor Massive Sulfides (SMSs), which are formed from hydrothermal fluids vented from seafloor, have been expected as one of future Mineral resources. The authors have proposed the concept of seafloor Mineral Processing, where valuable Minerals contained in SMS ores are separated on seafloor. Experimental studies were carried out to apply conventional Mineral Processing technologies such as ball mill grinding and column flotation to seafloor Mineral Processing. Experimental studies suggest that these technologies would be applicable to seafloor Mineral Processing. In addition, application of Laser-Induced Breakdown Spectroscopy (LIBS) to in-situ measurement of metal grade of ore particles in the Mineral Processing system was investigated. By adapting seafloor Mineral Processing to the mining scheme of SMSs, the mining costs are expected to be reduced significantly.
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OMAE2012-8 STUDY ON SEAFLOOR Mineral Processing FOR MINING OF SEAFLOOR
OMAE, 2012Co-Authors: Yasuharu Nakajima, Ryosuke Abe, Sotaro Masanobu, Jun Sadaki, Shigeo Kanada, Joji Yamamoto, Ichihiko Takahashi, Seiji Matsuo, Katsunori Okaya, Toyohisa FujitaAbstract:Seafloor Massive Sulfides (SMSs), which were formed by deposition of precipitates from hydrothermal fluids vented from seafloor, has been expected as one of unconventional Mineral resources on deep seafloors in the oceans. The authors have proposed the concept of seafloor Mineral Processing for SMS mining, where valuable Minerals contained in SMS ores are separated on seafloor while gangue Minerals are disposed on seafloor in appropriate ways. To confirm the applicability of column flotation, which is one of conventional Mineral Processing methods, to seafloor Mineral Processing, the authors carried out experiments simulating column flotation under the pressure conditions corresponding to the water depths down to 1000m in maximum using ore samples containing copper, iron, zinc and lead. In the experiments, formation of fine bubbles suitable to flotation and overflow of froth layer were observed at high pressures. The contents of copper and zinc in the concentrates recovered in the experiments at 1MPa were higher than those in the feed ores while the contents of silicon and calcium in the concentrates were lower than those in the feed ores. These results suggest that column flotation would be applicable to seafloor Mineral Processing. Copyright © 2012 by ASME.
Sirkka-liisa Jämsä-jounela - One of the best experts on this subject based on the ideXlab platform.
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Handbook of Automation - Automation and Robotics in Mining and Mineral Processing
Springer Handbook of Automation, 2020Co-Authors: Sirkka-liisa Jämsä-jounela, Greg BaidenAbstract:Mines and Mineral Processing plants need integrated process control systems capable of improving plant-wide efficiency and productivity. Mining automation systems today typically control fixed plant equipment such as pumps, fans, and phone systems. Much work is underway around the world in attempting to create the moveable equivalent of the manufacturing assembly line for mining. This technology has the goals of speeding production, improving safety, and reducing costs. Process automation systems in Mineral Processing plants provide important plant operational information such as metallurgical accounting, mass balances, production management, process control, and optimization. This chapter discusses robotics and automation for mining and process control in Mineral Processing. Teleoperation of mining equipment and control strategies for grinding and flotation serve as examples of current development of field.
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Automation and Robotics in Mining and Mineral Processing
Springer Handbook of Automation, 2009Co-Authors: Sirkka-liisa Jämsä-jounela, Greg BaidenAbstract:Mines and Mineral Processing plants need integrated process control systems capable of improving plant-wide efficiency and\nproductivity. Mining automation systems today typically control fixed plant equipment such as pumps, fans, and phone systems.\nMuch work is underway around the world in attempting to create the moveable equivalent of the manufacturing assembly line\nfor mining. This technology has the goals of speeding production, improving safety, and reducing costs. Process automation\nsystems in Mineral Processing plants provide important plant operational information such as metallurgical accounting, mass\nbalances, production management, process control, and optimization. This chapter discusses robotics and automation for mining\nand process control in Mineral Processing. Teleoperation of mining equipment and control strategies for grinding and flotation\nserve as examples of current development of field.
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Recent Developments in the Simulation of Mineral Processing Operations
IFAC Proceedings Volumes, 1996Co-Authors: Timo Lättilä, Maija Teijonsalo, Juha Virtanen, Prasad Kummarapurugu, Sirkka-liisa Jämsä-jounelaAbstract:Abstract There has been a significant progress in the use of mathematical modeling and simulation in the Minerals industry in the last decade. Process models have moved from academic world to important industrial tools. This paper reviews the status of Mineral Processing simulators and recent progress in simulator development and applications is discussed. The simulation for process design and optimisation is now an established technique, as evidenced by its increasing use of practising engineers through commercially available simulator software. The paper presents a systematic approach to the process study procedure for the control system development, clarified by practical case examples calculated by SimCon - a novel steady-state simulator for Mineral processes. Examples of the application of SimCon in drawing flowsheets, calculating mass balances and making simulations for grinding and flotation processes are presented. At the end of the paper, the state-of-the-art and the future of computer-aided process study at Mineral Processing plants is discussed.
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Recent Advances in the Simulation of Mineral Processing Circuits
IFAC Proceedings Volumes, 1995Co-Authors: Timo Lättilä, Maija Teijonsalo, Sirkka-liisa Jämsä-jounelaAbstract:Abstract This paper reviews the status of Mineral Processing simulators and recent progress in simulator development and application is discussed. The simulation for process design and optimisation is now an established technique, as evidenced by its increasing use of practising engineers through commercially available simulator software. The paper presents a systematic approach to the process study procedure for the control system development, clarified by practical case examples calculated by SimCon - a novel steady-state simulator for Mineral processes. Examples of the application of SimCon in drawing flowsheets, calculating mass balances and making simulations for grinding and flotation processes are presented. At the end of the paper, the state-of-the-art and the future of computer-aided process study at Mineral Processing plants is discussed.
Zhu Cong-jie - One of the best experts on this subject based on the ideXlab platform.
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2001 Annual Review of Mineral Processing in Yunnan
Yunnan Metallurgy, 2020Co-Authors: Zhu Cong-jieAbstract:Annual review of Yunnan Mineral Processing progress in 2001 is made on the basis of Yunnan mining periodicals and other papers relating to Mineral Processing in Yunnan.
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2002 Annual Review of Mineral Processing in Yunnan
Yunnan Metallurgy, 2020Co-Authors: Zhu Cong-jieAbstract:Based on papers published in periodicals,the technical progress of Mineral Processing in Yunnan in 2002 is reviewed
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2003 Annual Review of Mineral Processing in Yunnan
Yunnan Metallurgy, 2020Co-Authors: Zhu Cong-jieAbstract:Based on periodicals of mining industry and other corresponding papers,the technological progress of Mineral Processing in Yunnan is comprehensively reviewed.
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2000 Annual Review of Mineral Processing in Yunnan
Yunnan Metallurgy, 2020Co-Authors: Zhu Cong-jieAbstract:On the basis of mining periodicals published in Yunnan and other papers concerned,the technological progress of Mineral Processing in Yunnan is reviewed.
Janis Jansz - One of the best experts on this subject based on the ideXlab platform.
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pollution minimisation practices in the australian mining and Mineral Processing industries
Journal of Cleaner Production, 2006Co-Authors: Catherine Driussi, Janis JanszAbstract:Abstract Research was conducted to identify some of the current pollution minimisation practices adopted in Australia's mining and Mineral Processing industries. Initially, 84 mining and Mineral Processing companies were approached for inclusion in the study, with request only made for information that was available to the company stakeholders and the wider general community. Among the responses received, BHP Billiton, BlueScope Steel, Newmont Australia Limited and AngloGold Australia provided the information requested and/or a substantial quantity of information through reports on their company website. Analysis of the data collected for these companies indicated that improvements were made, and that policies had been implemented over the previous few years. The pollution minimisation and policy practices adopted at the operations of these companies include environmental management systems, advanced pollution control technologies, environmental awareness training for employees, and requirement – from company stakeholders – for increased accountability of environmental impacts.
Yasuharu Nakajima - One of the best experts on this subject based on the ideXlab platform.
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Development of seafloor Mineral Processing for Seafloor Massive Sulfides
2016 Techno-Ocean (Techno-Ocean), 2016Co-Authors: Yasuharu Nakajima, Takumi Sato, Blair Thornton, Gjergj Dodbiba, Toyohisa FujitaAbstract:Seafloor Massive Sulfides (SMSs), which are formed from hydrothermal fluids vented from seafloor, have been expected as one of future Mineral resources. The authors have proposed the concept of seafloor Mineral Processing, where valuable Minerals contained in SMS ores are separated on seafloor. Experimental studies were carried out to apply conventional Mineral Processing technologies such as ball mill grinding and column flotation to seafloor Mineral Processing. Experimental studies suggest that these technologies would be applicable to seafloor Mineral Processing. In addition, application of Laser-Induced Breakdown Spectroscopy (LIBS) to in-situ measurement of metal grade of ore particles in the Mineral Processing system was investigated. By adapting seafloor Mineral Processing to the mining scheme of SMSs, the mining costs are expected to be reduced significantly.
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OMAE2012-8 STUDY ON SEAFLOOR Mineral Processing FOR MINING OF SEAFLOOR
OMAE, 2012Co-Authors: Yasuharu Nakajima, Ryosuke Abe, Sotaro Masanobu, Jun Sadaki, Shigeo Kanada, Joji Yamamoto, Ichihiko Takahashi, Seiji Matsuo, Katsunori Okaya, Toyohisa FujitaAbstract:Seafloor Massive Sulfides (SMSs), which were formed by deposition of precipitates from hydrothermal fluids vented from seafloor, has been expected as one of unconventional Mineral resources on deep seafloors in the oceans. The authors have proposed the concept of seafloor Mineral Processing for SMS mining, where valuable Minerals contained in SMS ores are separated on seafloor while gangue Minerals are disposed on seafloor in appropriate ways. To confirm the applicability of column flotation, which is one of conventional Mineral Processing methods, to seafloor Mineral Processing, the authors carried out experiments simulating column flotation under the pressure conditions corresponding to the water depths down to 1000m in maximum using ore samples containing copper, iron, zinc and lead. In the experiments, formation of fine bubbles suitable to flotation and overflow of froth layer were observed at high pressures. The contents of copper and zinc in the concentrates recovered in the experiments at 1MPa were higher than those in the feed ores while the contents of silicon and calcium in the concentrates were lower than those in the feed ores. These results suggest that column flotation would be applicable to seafloor Mineral Processing. Copyright © 2012 by ASME.
