Pollution Control and Resource Reuse for Alkaline Hydrometallurgy of Amphoteric Metal Hazardous Wastes

Description

This book provides a comprehensive description of alkaline hydrometallurgy of amphoteric metal hazardous wastes. Topics focus on leaching of zinc and lead hazardous wastes, purification of leach solution of zinc and lead, electrowinning of zinc and lead from purified alkaline solutions, chemical reactions taking place in the production flowsheets, thermodynamic and spent electrolyte regeneration, alkaline hydrometallurgy of low-grade smithsonite ores, recovery of molybdenum and tungsten using ion flotation and solvent extraction processes and their application in chemical synthesis of Nb and Ta inorganic compounds, and industrial scale production of 1500-2000 t/a zinc powder using alkaline leaching–electrowinning processes. Processes described are cost-effective, generate lesser secondary pollutants, and have been applied widely in China. Readers that will find the book appealing include solid waste engineers, environmental managers, technicians, recycling coordinators, government officials, undergraduates and graduate students, and researchers. . Read more... Abstract: This book provides a comprehensive description of alkaline hydrometallurgy of amphoteric metal hazardous wastes. Topics focus on leaching of zinc and lead hazardous wastes, purification of leach solution of zinc and lead, electrowinning of zinc and lead from purified alkaline solutions, chemical reactions taking place in the production flowsheets, thermodynamic and spent electrolyte regeneration, alkaline hydrometallurgy of low-grade smithsonite ores, recovery of molybdenum and tungsten using ion flotation and solvent extraction processes and their application in chemical synthesis of Nb and Ta inorganic compounds, and industrial scale production of 1500-2000 t/a zinc powder using alkaline leaching–electrowinning processes. Processes described are cost-effective, generate lesser secondary pollutants, and have been applied widely in China. Readers that will find the book appealing include solid waste engineers, environmental managers, technicians, recycling coordinators, government officials, undergraduates and graduate students, and researchers Front Matter ....Pages i-li Amphoteric Metal Hazardous Wastes and Hydrometallurgical Processes of Zinc and Lead (Zhao Youcai, Zhang Chenglong)....Pages 1-11 Thermodynamics of Alkaline Leaching of Zinc and Lead Hazardous Wastes (Zhao Youcai, Zhang Chenglong)....Pages 13-38 Kinetics of Alkaline Leaching of Solid Wastes Bearing Zinc and Lead (Zhao Youcai, Zhang Chenglong)....Pages 39-59 Leaching of Zinc and Lead Hazardous Wastes in Alkaline Solutions (Zhao Youcai, Zhang Chenglong)....Pages 61-132 Purification of Leach Solution of Zinc and Lead in Alkaline Solutions (Zhao Youcai, Zhang Chenglong)....Pages 133-170 Electrowinning of Zinc and Lead from Alkaline Solutions (Zhao Youcai, Zhang Chenglong)....Pages 171-261 Alkaline Hydrometallurgy of Low-Grade Smithsonite Ores (Zhao Youcai, Zhang Chenglong)....Pages 263-282 Spent Electrolyte Regeneration and Recovery of Associated Valuable Metals from Lean Leaching Solution (Zhao Youcai, Zhang Chenglong)....Pages 283-363 Industrial-Scale Production of Zinc Powder Using Alkaline Leaching-Electrowinning Processes (Zhao Youcai, Zhang Chenglong)....Pages 365-391 Back Matter ....Pages 393-405