The Leaching of Zinc Containing Sulphide Minerals PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
A process - an improvement on that described in our patent No. 800224 - for treating zinc sulphide materials ( and recovering at least some of sulphide as elemental sulphur) wherein the sub-divided material is firstly leached, under pressure at less than 119 degrees C, with a sulphate leach solution low in sulphuric acid and having a high iron content together with zinc and impurities in a manner causing iron to precipitate and subsequently leaching the residue and redissolving the iron precipitate with spend electrolyte containing regenerated sulphuric acid resulting from the treatment of the leach liquor obtained from the first leach step and wherein the leach solution from the subsequent leach step constitutes the starting leach solution for the first leach step. The second leach step is carried out in two stages; a first leach stage conducted at elevated pressure and elevated temperature (less than 119 degrees C - ie below the melting point of sulphur) in the presence of oxygen and a second stage at atmospheric pressure and without the supply of free oxygen to the leach solution.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
A process - an improvement on that described in our patent No. 800224 - for treating zinc sulphide materials ( and recovering at least some of sulphide as elemental sulphur) wherein the sub-divided material is firstly leached, under pressure at less than 119 degrees C, with a sulphate leach solution low in sulphuric acid and having a high iron content together with zinc and impurities in a manner causing iron to precipitate and subsequently leaching the residue and redissolving the iron precipitate with spend electrolyte containing regenerated sulphuric acid resulting from the treatment of the leach liquor obtained from the first leach step and wherein the leach solution from the subsequent leach step constitutes the starting leach solution for the first leach step. The second leach step is carried out in two stages; a first leach stage conducted at elevated pressure and elevated temperature (less than 119 degrees C - ie below the melting point of sulphur) in the presence of oxygen and a second stage at atmospheric pressure and without the supply of free oxygen to the leach solution.
Author: Sujay Kumar Dutta Publisher: Springer ISBN: 9811051720 Category : Technology & Engineering Languages : en Pages : 247
Book Description
This book presents a comprehensive overview of non-ferrous metallurgy, especially its core principles and fundamental aspects, in a concise form. The book covers all basic concepts and definitions related to metal extraction, and provide succinct summaries of relevant metallurgical processes. It also covers the scientific and engineering aspects of nuclear processes and features special chapter on ultra-high-purity metals. The book employs a step-by-step approach, is written in an easy-to-understand style, and discusses significance of core concepts. As such, it not only offers a valuable guide for professionals and researchers working in the areas of metallurgy, mining, and chemical engineering, but can also be used as a core text in both graduate and professional coursework.
Author: Edgardo R. Donati Publisher: Springer Science & Business Media ISBN: 1402055897 Category : Technology & Engineering Languages : en Pages : 312
Book Description
The application of microbiological methods to the extraction of metals from minerals is supported by several bioleaching and biooxidation processes operating in different sites over the world. This book details the basic aspects of the process with special emphasis on recent contributions regarding the chemical and microbial aspects of the bioleaching process and the use of microorganisms in the treatment of complex ores and concentrates.
Author: Zoraida Aguilar Publisher: Newnes ISBN: 0123850894 Category : Medical Languages : en Pages : 481
Book Description
Structurally the work is demarcated into the six most popular areas of research: (1) biocompatibility of nanomaterials with living organisms in their various manifestations (2) nanobiosensors for clinical diagnostics, detecting biomolecules which are useful in the clinical diagnosis of genetic, metabolically acquired, induced or infectious disease (3) targeted drug delivery for nanomaterials in their various modifications (4) nanomedical devices and structures which are used in the development of implantable medical devices and structures such as nanorobots (5) nanopharmacology, as novel nanoparticles are increasingly engineered to diagnose conditions and recognize pathogens, identify ideal pharmaceutical agents to treat the condition or pathogens, fuel high-yield production of matched pharmaceuticals (potentially in vivo), locate, attach or enter target tissue,
Author: S. K. Agarwal Publisher: APH Publishing ISBN: 9788176489379 Category : Science Languages : en Pages : 446
Book Description
Biotechnology is the umbrella term that covers various techniques to restore ecological balance. It stands on the understanding of molecular basis of cell functions and our ability to after cell functions to produce products required by the society.
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Author: William Parks Yant
Author: Sujay Kumar Dutta
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Author: Edgardo R. Donati
Author: Zoraida Aguilar
Author: S. K. Agarwal
Author: Charles Holmes Herty
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