Download or read book Extraction Studies of Some Platinum Group Metal Bromides written by Jack Robert Sanders and published by . This book was released on 1967 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Extraction Studies in the Platinum Metal Group written by William Lambert Senn and published by . This book was released on 1958 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Refining of the Platinum group Metals written by R. I. Edwards and published by . This book was released on 1975 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ion Exchange and Solvent Extraction written by Jacob A. Marinsky and published by CRC Press. This book was released on 1981-11-01 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume will capture transformational changes in both the chemistry and engineering side of solvent extraction, creating new directions and deepening our understanding of the structure and dynamics of liquid-liquid systems from the molecular- to nano- to meso- to bulk-scale. Reviews will cover advances in microfluidics, new tools for understanding the structure and dynamics of the liquid-liquid interface, ionic liquids in liquid-liquid extraction, molecular dynamics to visualize interactions in the solvent phase, liquid-liquid electrochemistry to interrogate the energetics of interfacial transport and complexation, design of new extractants, and the streamlining of process applications. --

Download or read book Hydrometallurgy 94 written by Institution of Mining & Metallurgy and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrometallurgy '94 contains the 78 papers that were presented at the international symposium organized by the Institution of Mining and Metallurgy and the Society of Chemical Industry and held in Cambridge, England, in July 1994. In the papers specific attention is paid to the concept of sustainable development and the associated ideas of cleaner technology, recycling and waste minimization that have particular relevance to the extractiona nd processing of metals and other mineral products. The papers, by authors from 30 contries, are grouped under the headings: Hydrometallurgy and Sustainable Development; Materials Production and the Environment; Fundamentals; Leaching; Bioprocessing; Gold Solution Purification; Effluent Treatment; Processes; and Recycling.

Download or read book Extraction and Refining of the Platinum Group Metals written by and published by . This book was released on with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Masters Theses and Doctoral Dissertations in the Pure and Applied Sciences Accepted by Colleges and Universities of the United States written by and published by . This book was released on 1968 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mendeleev Chemistry Journal written by and published by . This book was released on 1972 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sustainable Metal Extraction from Waste Streams written by Garima Chauhan and published by John Wiley & Sons. This book was released on 2020-03-06 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive overview on developing sustainable practices for waste minimization via green metal extraction from waste streams This book introduces readers to sustainable management and defines the challenges as well as the opportunities in waste stream management. It starts by covering conventional technologies for metal extraction then focuses on emerging tools and techniques such as green adsorption, bioleaching, and chelation. It also discusses the scale-up and process intensification of metal extraction from waste streams from process design to pilot plan. Sustainable Metal Extraction from Waste Streams begins by covering sustainability-related constructs and illustrates the pre-requisites for sustainable management of waste streams. It then introduces the basics of solid waste handling, ranging from an analysis of the relevance, categories of wastes, consequences of untreated waste disposal into the environment, government initiatives, management strategies, and unit operations for pre-treatment of wastes. The book also looks at widely accepted, conventional metal extraction technologies like hydro and pyro metallurgical methods; discusses the possibility of sustainable green processes for metal extraction; and introduces the recently deployed coiled flow inverter process. -Provides a comprehensive collection of the conventional, emerging, and future technologies for metal extraction from industrial waste and electrical & electronic equipment in a sustainable way -Demonstrates trans-disciplinary research as an executable direction to achieve the sustainable governance of natural resources and solid waste management -Presents a dedicated section on scale-up and process intensification of metallurgical processes -Summarizes various aspects of novel processes ranging from basic concepts, benchmark performance of technologies on lab scale, and recent research trends in metal extraction Covering a variety of interdisciplinary topics on resource optimization and waste minimization, Sustainable Metal Extraction from Waste Streams is an excellent resource for engineers, science students, entrepreneurs, and organizations who are working in the field of waste management and wish to gain information on upcoming sustainable processes.

Download or read book Master s Theses and Doctoral Dissertations in the Pure and Applied Sciences written by and published by . This book was released on 1967 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Solvent Extraction of Platinum group Metals from Hydrochloric Acid Solutions by Dialkyl Sulphoxides written by and published by . This book was released on 2002 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The solvent extraction of palladium(II), platinum(II), platinum(IV), rhodium(III), iridium(III) and iridium(IV) from hydrochloric acid solutions by some dialkyl sulphoxides of the types R2SO, RR'SO and R'2SO, where R=alkyl and R'=cycloalkyl, was investigated. The order of extraction of these metals by 0.50 M di-n-hexyl sulphoxide in xylene from solutions containing 1 to 6M hydrochloric acid was found to be Pd(II)> Pt(II)> Ir(IV)> Pt(IV)> Rh(III)> Ir(III). Metal-distribution studies suggest that iridium(IV) and platinum(IV) are extracted in the form of ion-pairs such as [formula] and [formula], where L=dialkyl sulphoxide. In the case of palladium(II) and probably platinum(II) also, the sulphoxide apparently displaces one or two of the chloride ligands from the chlorometallate anion [formula], and the distribution data are consistent with the extraction of PdCl2L2 at low hydrochloric acid concentration (1-2 M) and [formula] at higher concentrations (4-6 M). The slow rates of extraction of rhodium(III) and iridium(III) from solutions containing the [formula] species suggests a ligand substitution reaction for these metals also, with the probably formation of species such as [formula] and [formula] in the organic phase. Comparison of the uv-visible spectra of the metal- loaded organic phases with those obtained using tri=n=octylammonium chloride as extractant confirms that simple chlorometallate anions are present in the dialkyl sulphoxide extracts only for platinum(IV) and iridium(IV).

Download or read book Metal organic Frameworks for Platinum Group Metal Extraction written by William James Francis Trenholme and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recovery of Platinum Palladium and Gold from Stillwater Complex Flotation Concentrate by a Roasting leaching Procedure written by and published by . This book was released on 1985 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bureau of Mines devised a procedure for selectively extracting platinum-group metals (PGM) and gold from Stillwater Complex flotation concentrate. The Stillwater Complex is the only major U.S. PGM resource. Development of a suitable extraction technique will contribute to its exploitation. The concentrate was roasted at 1,050° C to convert host base-metal sulfides to oxides and the PGM from sulfide minerals to their elemental states. The roasted concentrate was preleached with dilute sulfuric acid to remove easily soluble gangue minerals. After pre-leaching, the concentrate was slurried with 6M HCI and leached at ambient temperature and pressure with a strong-oxidizing agent. Hydrogen peroxide, chlorine, sodium hypochlorite, nitric acid, and a persulfate salt were the oxidants investigated. The two-stage leaching scheme ex-tracted up to 97 pct of the platinum, 92 pct of the palladium, and 99 pct of the gold from the roasted concentrate. The base metals were not solubilized and reported to the residue. No attempt was made to devise a procedure to recover the copper and nickel because they comprise less than 5 pct of the value of the concentrate. Viable techniques for recovering the precious metals from the pregnant solution were sulfide precipitation, cementation with nickel, or adsorption on activated carbon.

Download or read book A Manual for the Chemical Analysis of Metals written by and published by ASTM International. This book was released on with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Countercurrent Extraction of Some Platinum Metals written by Socrates Karayorgi and published by . This book was released on 1982 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 2024 25 IAS All States PSC General Studies General Science Science Technology Solved Papers written by YCT Expert Team and published by YOUTH COMPETITION TIMES. This book was released on with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2024-25 IAS All States PSC General Studies General Science & Science Technology Solved Papers 416 795 E. This book contains 380 solved papers and 4816 objective questions.