Download or read book The Recovery of Zinc Manganese and H2SO4 by Solvent Extraction from Spent Electrolyte written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Two processes are proposed for the recovery of zinc and, eventually, manganese from strongly acidic sulphuric liquors, both based on two separate extractive phases: (1) preliminary H2SO4 extraction by isobutyl alcohol; (2) zinc extraction by DEHPA, or Zn and Mn extraction by naphthenic acid. H2SO4 is extracted to reduce the acidity of the original liquor and to recover the acid itself. The recovered zinc solution can be recycled to a zinc-electrowinning plant.

Download or read book Simultaneous Recovery of Zinc and Manganese Dioxide written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Commonly solutions from which zinc is to be electrowon contain manganous ions resulting from manganese being present in the zinc concentrate or as a result of the addition of MnO2 to the process circuit as an oxidant. The process is aimed at maintaining a certain selected level of dissolved manganese in the zinc electrolyte, lower than would adversely affect the zinc electrowinning. Spent electrolyte is normally recycled to the leach plant to produce fresh electrolyte part or all of which is then fed to a primary electrolytic cell operating above 70 degrees C and preferably at 85 to 90 degrees C and with a low H2SO4 content - below 25 g/l. The surface area of the anode is approximately 3 times that of the cathode. Carbon is a suitable anode material and aluminium for the cathodes. The electrolyte leaving the primary cell will preferably contain 35 g/l H2SO4 but not more than 75 g/l. Zinc will have plated out on the cathode and MnO2 on the cathode. The electrolyte then passes to a secondary cell which is a conventional zinc electrowinning cell. Preferred current densities are about 300 A/m2 for the cathode and 100 A/m2 for the anode. The surface area of the anode is approximately 3 times that of the cathode. The cell must be agitated. A polyelectrolyte flocculent was used as a smoothing agent to suppress the formation of zinc dendrites. Typically the primary electrolyte will contain about 160 g/l of zinc and 20 g/l MnO2.

Download or read book A One step Operation for Recovery of Manganese as Chloride from Ores and Slags written by Andrew A. Cochran and published by . This book was released on 1966 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recovery of Principal Metal Values from Electrolytic Zinc Waste written by Terry L. Hebble and published by . This book was released on 1981 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metals Abstracts written by and published by . This book was released on 1996 with total page 1628 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the International Symposium on Solvent Extraction ISSE written by and published by Allied Publishers. This book was released on 2002 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Separation of Zinc 11 and Manganese 11 by Solvent Extraction written by E. Yao and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Circular Economy and Sustainable Energy Materials written by Ngoc Thanh Thuy Tran and published by CRC Press. This book was released on 2024-08-29 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: Achieving carbon neutrality is crucial for creating a sustainable and resilient future worldwide. The circular economy framework focuses on reducing waste, optimizing resource use, and promoting regenerative practices, thus curbing carbon footprints. Concurrently, sustainable energy techniques, such as harnessing renewable sources, enhancing energy storage, and boosting energy efficiency, contribute to the reduction of greenhouse gas emissions. With a unique emphasis on net-zero emission approaches, this book delves into circular economy principles and sustainable energy materials, offering a comprehensive perspective on climate change challenges. Covers fundamental circular economy principles, from carbon capture to advancements in biomass and hydrogen energy Explores recycling techniques for essential energy materials, including batteries, solar cells, and fuel cells Provides detailed coverage of technologies, processes, and challenges related to achieving sustainability in the energy sector Bridges theory and practical applications Offering a roadmap toward a carbon neutral and net-zero emission future, this book serves as a valuable resource for advanced students, researchers, engineers, and policymakers worldwide seeking solutions to climate change and sustainable development.

Download or read book Official Gazette of the United States Patent and Trademark Office written by United States. Patent and Trademark Office and published by . This book was released on 1978 with total page 1394 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recovery of the metals written by Donald Macy Liddell and published by . This book was released on 1945 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Solvent Extraction 1990 written by T. Sekine and published by Elsevier. This book was released on 2012-12-02 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solvent extraction is employed very widely in both fundamental research and technology because of the remarkable features of this simple but very effective technique for the separation of different materials. The International Solvent Extraction Conference 1990 was a forum for the presentation of papers on up-to-date research in this field. The collection of the papers in these volumes will be invaluable because information on solvent extraction is often scattered in various journals and proceedings which make the following of developments difficult.

Download or read book Mining Development Scenario for Cobalt rich Manganese Crusts in the Exclusive Economic Zones of the Hawaiian Archipelago and Johnston Island written by Hawaii. Marine Mining Program and published by . This book was released on 1987 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Advanced Approaches Towards Pollution Prevention and Control written by Rehab O Abdel Rahman and published by Elsevier. This book was released on 2021-02-02 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Advanced Approaches towards Pollution Prevention and Control, Volume Two: Legislative Measures and Sustainability for Pollution Prevention and Control condenses all relevant information on pollution prevention and control in a single source. This handbook (Volume Two of Two) covers the principals of pollution prevention and control technologies, recent advances in pollution prevention, control technologies and their sustainability, modernization in pollution prevention and control technologies for future and next generation of pollution prevention and control technologies. The book is an indispensable resource for researchers and academic staff in chemical and process engineering, safety engineering, environmental engineering, biotechnology, and materials engineering. Provides in-depth information on the principles and advances in pollution prevention and control practices Discusses emerging technologies and processes for advanced pollution prevention and control Presents developments on the use of the assessment models as tools to support the research and applications of different technologies and processes Provides history, fundamentals, state-of-the-art, and future trends Edited by expert team of world-class editors

Download or read book Lithium Process Chemistry written by Alexandre Chagnes and published by Elsevier. This book was released on 2015-06-14 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lithium Process Chemistry: Resources, Extraction, Batteries and Recycling presents, for the first time, the most recent developments and state-of-the-art of lithium production, lithium-ion batteries, and their recycling. The book provides fundamental and theoretical knowledge on hydrometallurgy and electrochemistry in lithium-ion batteries, including terminology related to these two fields. It is of particular interest to electrochemists who usually have no knowledge in hydrometallurgy and hydrometallurgists not familiar with electrochemistry applied to Li-ion batteries. It is also useful for both teachers and students, presenting an overview on Li production, Li-ion battery technologies, and lithium battery recycling processes that is accompanied by numerous graphical presentations of different battery systems and their electrochemical performances. The book represents the first time that hydrometallurgy and electrochemistry on lithium-ion batteries are assembled in one unique source. Provides fundamental and theoretical knowledge on hydrometallurgy and electrochemistry in lithium-ion batteries Represents the first time that hydrometallurgy and electrochemistry on lithium-ion batteries are assembled in one unique source. Ideal for both electrochemists who usually have no knowledge in hydrometallurgy and hydrometallurgists not familiar with electrochemistry applied to Li-ion batteries Presents recent developments, as well as challenges in lithium production and lithium-ion battery technologies and their recycling Covers examples of Li processes production with schematics, also including numerous graphical presentations of different battery systems and their electrochemical performances

Download or read book Journal of the South African Institute of Mining and Metallurgy written by South African Institute of Mining and Metallurgy and published by . This book was released on 2002-07 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recent Developments in Non ferrous Metals Technology Copper written by Pratip Kumar Gupta and published by . This book was released on 1969 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: