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Book Biohydrometallurgy of Chalcopyrite

Download or read book Biohydrometallurgy of Chalcopyrite written by Hongbo Zhao and published by Elsevier. This book was released on 2021-07-29 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioleaching of chalcopyrite is always a challenge and research hotspot. The low copper extraction and dissolution kinetics restricted the industrial application of chalcopyrite bioleaching. To solve this problem, the dissolution process and passivation mechanism of chalcopyrite in bioleaching should be first studied, then the rate-limiting steps should be analysed explicitly, and finally the intensifying method can be put forward. Many scholars have made efforts to investigate the dissolution mechanism of chalcopyrite in bioleaching. However, there is no congruence of opinion as yet. Biohydrometallurgy of Chalcopyrite summarizes and discusses the reported research findings. In addition, this book publishes the related results found by the authors’ research. Then, the dissolution mechanism of chalcopyrite in bioleaching is interpreted. Finally, the process intensification techniques of chalcopyrite bioleaching are provided and discussed. Hence, this book provides useful reference and guidance in both laboratory research and industrial production. Interprets the dissolution mechanism of chalcopyrite in bioleaching Provides feasible technologies for intensifying chalcopyrite bioleaching Overviews the current situations of chalcopyrite bioleaching Helps the readers to deeply understand the bioleaching mechanisms of chalcopyrite Provides topics for future research and potential industrial applications

Book High gradient magnetic separation mechanism for separation of chalcopyrite from molybdenite

Download or read book High gradient magnetic separation mechanism for separation of chalcopyrite from molybdenite written by Pulin Dai and published by OAE Publishing Inc.. This book was released on 2023-10-23 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Removing molybdenite from chalcopyrite by flotation has long been a challenge due to their similar floatability as sulfide minerals. However, the difference in the magnetic susceptibility of the two minerals may be employed to address this challenge. Recently, pulsating high-gradient magnetic separation (PHGMS) has been reported effective as an environmentally friendly and economical strategy for separating chalcopyrite from molybdenite, but the mechanism of their magnetic difference is unclear. The current investigation employed crystal field theory and density functional theory calculations to theoretically elucidate the magnetic properties of these two minerals, and their difference was further demonstrated by experimental investigations. Under optimized conditions in a SLon-100 cyclic PHGMS separator, a chalcopyrite concentrate assaying 31.47% Cu and 0.44% Mo at 81.93% Cu and 5.56% Mo recoveries was produced from a pure chalcopyrite-molybdenite mixture that initially contained 26.29% Cu and 5.42% Mo. After the separation process, the Cu grade decreased to 15.06%, whereas the Mo grade increased to 16.22% in the nonmagnetic product. These findings have potential implications for the separation of chalcopyrite from molybdenite using PHGMS.

Book Effect of Additives on Chalcopyrite Leaching

Download or read book Effect of Additives on Chalcopyrite Leaching written by Lawrence E. Schultze and published by . This book was released on 1995 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Aqueous Reduction of Chalcopyrite Concentrate with Metals

Download or read book Aqueous Reduction of Chalcopyrite Concentrate with Metals written by and published by . This book was released on 1974 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Chlorination of Chalcopyrite

Download or read book Chlorination of Chalcopyrite written by David H. Yee and published by . This book was released on 1977 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Flotation of Chalcopyrite in Chalcopyrite pyrrhotite Ores of Southern Oregon

Download or read book Flotation of Chalcopyrite in Chalcopyrite pyrrhotite Ores of Southern Oregon written by William Hawes Coghill and published by . This book was released on 1918 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Ternary Chalcopyrite Semiconductors Growth Electronic Properties and Applications

Download or read book Ternary Chalcopyrite Semiconductors Growth Electronic Properties and Applications written by J. L. Shay and published by Elsevier. This book was released on 2013-10-22 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ternary Chalcopyrite Semiconductors: Growth, Electronic Properties, and Applications covers the developments of work in the I-III-VI2 and II-IV-V2 ternary chalcopyrite compounds. This book is composed of eight chapters that focus on the crystal growth, characterization, and applications of these compounds to optical communications systems. After briefly dealing with the status of ternary chalcopyrite compounds, this book goes on describing the crystal growth of II-IV-V2 and I-III-VI2 single crystals. Chapters 3 and 4 examine the energy band structure of these semiconductor compounds, illustrating that these compounds are the simplest ternary analogs of II-VI zincblende compounds. Chapter 5 discusses the spontaneous luminescence, stimulated emission and laser action, and light-emitting diodes employing ternary chalcopyrite compounds. Chapter 6 discusses some of the fundamental principles of nonlinear optical interactions and the properties of the chalcopyrite crystals. This text also highlights the nonlinear optical devices available. Chapter 7 describes the electrical properties of chalcopyrite crystals, whereas the concluding chapter deals with the other physical properties of these compounds, such as lattice vibrational spectra, optical activity, and linear thermal expansion. This book is of great value to researchers and workers in the semiconductor field.

Book High temperature Enthalpies and Entropies of Chalcopyrite and Bornite

Download or read book High temperature Enthalpies and Entropies of Chalcopyrite and Bornite written by L. B. Pankratz and published by . This book was released on 1970 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Copper Recovery from Chalcopyrite by a Roast leach Procedure

Download or read book Copper Recovery from Chalcopyrite by a Roast leach Procedure written by Philip R. Haskett and published by . This book was released on 1973 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: