The Enviroplas Process for the Recovery of Zinc, Chromium and Nickel from Steel-plant Dust PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages : 11
Book Description
The treatment of electric arc-furnace and converter dusts has received considerable attention over the past ten years, as new and changing environmental legislation has been introduced. The most commonly practised commercial process is the Waelz kiln which is operated in the United States of America by Horsehead. The resulting clinker consists of low grade pre-reduced iron units that can in principle be recycled to the arc furnace. However, the zinc-enriched fume from the Waelz kiln is unsuitable for direct use in a conventional electrolytic zinc plant, but can be treated as such by a termal process (eg electrothermal - ZCA or an ISF plant).
Author: Publisher: ISBN: Category : Languages : en Pages : 11
Book Description
The treatment of electric arc-furnace and converter dusts has received considerable attention over the past ten years, as new and changing environmental legislation has been introduced. The most commonly practised commercial process is the Waelz kiln which is operated in the United States of America by Horsehead. The resulting clinker consists of low grade pre-reduced iron units that can in principle be recycled to the arc furnace. However, the zinc-enriched fume from the Waelz kiln is unsuitable for direct use in a conventional electrolytic zinc plant, but can be treated as such by a termal process (eg electrothermal - ZCA or an ISF plant).
Author: S.R. Ramachandra Rao Publisher: Elsevier ISBN: 0080463207 Category : Science Languages : en Pages : 581
Book Description
Resource recovery and recycling from millions of tons of wastes produced from industrial activities is a continuing challenge for environmental engineers and researchers. Demand for conservation of resources, reduction in the quantity of waste and sustainable development with environmental control has been growing in every part of the world. Resource Recovery and Recycling from Metallurgical Wastes brings together the currently used techniques of waste processing and recycling, their applications with practical examples and economic potentials of the processes. Emphasis is on resource recovery by appropriate treatment and techniques. Material on the subject is scatterend in waste management and environmental related journals, conference volumes and government departmental technical reports. This work serves as a source book of information and as an educational technical reference for practicing scientists and engineers, as well as for students. - Describes the currently used and potential techniques for the recovery of valuable resources from mineral and metallurgical wastes - Discusses the applications to specific kinds of wastes with examples from current practices, as well as eht economics of the processes - Presents recent and emerging technologies of potentials in metal recycling and by-product utilization
Author: Sehliselo Ndlovu Publisher: CRC Press ISBN: 1498767303 Category : Science Languages : en Pages : 531
Book Description
Increasingly stringent environmental regulations and industry adoption of waste minimization guidelines have thus, stimulated the need for the development of recycling and reuse options for metal related waste. This book, therefore, gives an overview of the waste generation, recycle and reuse along the mining, beneficiation, extraction, manufacturing and post-consumer value chain. This book reviews current status and future trends in the recycling and reuse of mineral and metal waste and also details the policy and legislation regarding the waste management, health and environmental impacts in the mining, beneficiation, metal extraction and manufacturing processes. This book is a useful reference for engineers and researchers in industry, policymakers and legislators in governance, and academics on the current status and future trends in the recycling and reuse of mineral and metal waste. Some of the key features of the book are as follows: Holistic approach to waste generation, recycling and reuse along the minerals and metals extraction. Detailed overview of metallurgical waste generation. Practical examples with complete flow sheets, techniques and interventions on waste management. Integrates the technical issues related to efficient resources utilization with the policy and regulatory framework. Novel approach to addressing future commodity shortages.
Author: C. Suryanarayana Publisher: Elsevier ISBN: 0080537626 Category : Technology & Engineering Languages : en Pages : 459
Book Description
The rapid technological developments during the later half of the 20th century have demanded materials that are stronger, capable of use at much higher temperatures, more corrosion-resistant, and much less expensive than those currently used. These demands become even more significant on the threshold of the new century and the millennium. Significant improvements in properties can only be achieved by processing the materials under far-from-equilibrium (or non-equilibrium) conditions. Several new processing technologies have been developed during the past few decades including, rapid solidification, spray forming, mechanical alloying, ion mixing, vapor deposition, laser processing and plasma processing. Remarkable advances have been made in recent years in the science and technology of these processes used to synthesize, characterize, and apply these materials processed under non-equilibrium conditions. Some of these techniques have evolved from laboratory curiosity to commercial-scale manufacturing in just a few years. In other cases, industrial necessity prompted development of the technology, and the science followed later. The chapters in this book have been written by people who are world-recognized experts in their respective fields. Each chapter describes the principles, processing techniques, special features of the materials produced, and their applications. An extensive list of references is provided at the end of each chapter that will facilitate location of additional information on specific aspects of any technique.
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Author: S.R. Ramachandra Rao
Author: John E. Dutrizac
Author: Sehliselo Ndlovu
Author: C. Suryanarayana
Author: Ibrahim Gaballah
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Author: South African Institute of Mining and Metallurgy
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