Optimisation of the Purification Process of a Zinc Sulfate Leach Solution for Zinc Electrowinning PDF Download
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Author: Bernard Josef Krause
Publisher:
ISBN:
Category : Electrometallurgy
Languages : en
Pages : 0
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Book Description
Author: Bernard Josef Krause
Publisher:
ISBN:
Category : Electrometallurgy
Languages : en
Pages : 0
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Book Description
Author: D. J. MacKinnon
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Book Description
Over the past 15 years, CANMET has developed expertise on impurity effects in zinc electrowinning from conventional zinc sulphate electrolyte. Technicas Reunidas developed a two-stage SX process, the Zincex process, that produces an acid-sulphate zinc electrolyte from a zinc chloride leach solution. The second SX stage, however, does not eliminate totally the impurities detrimental to zinc electrowinning. This report describes a CANMET process which adds zinc dust prior to the second solvent extraction step to remove the majority of metallic impurities.
Author: Chunhua Yang
Publisher: Academic Press
ISBN: 0128207299
Category : Science
Languages : en
Pages : 246
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Book Description
Modeling, Optimization and Control of Zinc Hydrometallurgical Purification Process provides a clear picture on how to develop a mathematical model for complex industrial processes, how to design the optimization strategy, and how to apply control methods in order to achieve desired production target. This book shares the authors’ recent ideas/methodologies/algorithms on the intelligent manufacturing of complex industry processes, e.g., how to develop a descriptive framework which could enable the digitalization and visualization of a process and how to develop the controller when the process model is not available. Presents an extended state-space descriptive framework for complex industrial processes Presents scientific problems extracted from real industrial process Proposes novel modeling and control tools for intelligent manufacturing of continuous industries
Author: Courtney A. Young
Publisher: Society for Mining, Metallurgy & Exploration
ISBN: 0873353854
Category : Technology & Engineering
Languages : en
Pages : 2258
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Book Description
This landmark publication distills the body of knowledge that characterizes mineral processing and extractive metallurgy as disciplinary fields. It will inspire and inform current and future generations of minerals and metallurgy professionals. Mineral processing and extractive metallurgy are atypical disciplines, requiring a combination of knowledge, experience, and art. Investing in this trove of valuable information is a must for all those involved in the industry—students, engineers, mill managers, and operators. More than 192 internationally recognized experts have contributed to the handbook’s 128 thought-provoking chapters that examine nearly every aspect of mineral processing and extractive metallurgy. This inclusive reference addresses the magnitude of traditional industry topics and also addresses the new technologies and important cultural and social issues that are important today. Contents Mineral Characterization and AnalysisManagement and ReportingComminutionClassification and WashingTransport and StoragePhysical SeparationsFlotationSolid and Liquid SeparationDisposalHydrometallurgyPyrometallurgyProcessing of Selected Metals, Minerals, and Materials
Author: M. E. Cassar
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
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Book Description
Author: Martin H. Stanczyk
Publisher:
ISBN:
Category : Leaching
Languages : en
Pages : 20
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Book Description
Author: Oliver Caldwell Ralston
Publisher:
ISBN:
Category : Zinc
Languages : en
Pages : 224
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Book Description
Author: Muammer Kaya
Publisher: Springer Nature
ISBN: 3031146859
Category : Technology & Engineering
Languages : en
Pages : 475
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Book Description
This book is a reflection of all aspects of secondary Zn and Pb processing, including the global business trends of the metals, plant operations, fundamental developments, emerging technologies, and environmental considerations. It stands as a ready reference for the processing, engineering, and research communities concerned with the latest developments in the hydrometallurgical and pyrometallurgical processing of secondary Zn-Pb resources.
Author: Manuel Prospero Neira Avalos
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
"The objectives of this research were to experimentally investigate the effects of organic solvents, entrained during solution purification by solvent extraction, on the zinc electrowinning efficiency and the characterization and evaluation of zinc electrolytes produced from waste oxides generated by the Ausmelt Pyroprocessing. The removal of cadmium ions from di-(2-ethylhexyl) phosphoric acid (D2EHPA) solvent extractant using different zinc solid reductants, and the dissolution of metallic Zn, Cd, and Pb in D2EHPA were also part of the present study. The results have shown that the entrainment of D2EHPA, in the loaded spent electrolyte significantly affect the current efficiency of zinc electrowinning, but the detrimental effects can be eliminated by purifying the contaminated electrolyte with activated carbon. The results obtained using the Ausmelt electrolytes showed that these solutions can be successfully electrolyzed but rather extensive purification is required and control of the solution overpotential is essential. The removal of Cd from D2EHPA was successfully accomplished using the galvanic stripping technique. It was found that zinc solid reductant alloyed with lead was superior to pure zinc for cadmium recovery and changes in the deposit morphology by the reaction/settling procedure enhance cadmium removal. The overall cadmium cementation is complex and is very dependent on oxygen content, temperature, agitation and type of zinc used. The results of the dissolution of Zn, Pb, and Cd powders in D2EHPA showed that a certain amount of water was necessary for a reaction to occur and the other variables, such as oxygen content, temperature, and agitation became significant only if the moisture condition was satisfied"--Abstract, leaf iv
Author: J.B. Rawlings
Publisher: Elsevier
ISBN: 1483296881
Category : Technology & Engineering
Languages : en
Pages : 513
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Book Description
Three important areas of process dynamics and control: chemical reactors, distillation columns and batch processes are the main topics of discussion and evaluation at the IFAC Symposium on Dynamics and Control of Chemical Reactors, Distillation Columns and Batch Processes (DYCORD '95). This valuable publication was produced from the latest in the series, providing a detailed assessment of developments of key technologies within the field of process dynamics and control.
