Download or read book Recovery and Separation of Molybdenum and Rhenium from a Process Solution written by D. D. Fischer and published by . This book was released on 1975 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recovery and separation of molybdenum and rhenium from a process solution was accomplished by a technique developed by the Federal Bureau of Mines involving a combined solvent extraction and activated carbon adsorption procedure. The processing sequence required treatment of the solution with SO2 to reduce the chlorate ion and adjust the pH prior to solvent extraction of molybdenum and rhenium with a tertiary amine. Molybdenum and rhenium were stripped from the organic phase with an NH4OH solution, and the strip solution was then passed through activated carbon to preferentially adsorb the rhenium. After washing entrained molybdenum from the column with a brine solution, rhenium was eluted with an MeOH-H2O mixture. The activated carbon was regenerated with water. Molybdenum was recovered as (NH4)6Mo--O24 by evaporating the column effluent. Rhenium in the column eluate was reextracted with a tertiary amine, stripped from the organic phase with dilute NH4OH, and recovered as NH4ReO4 by evaporating the strip solution. The final (NH4)ReO4 product contained

Download or read book Extraction and Recovery of Molybdenum and Rhenium from Molybdenite Concentrates by Electrooxidation written by Bernard J. Scheiner and published by . This book was released on 1976 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Federal Bureau of Mines has successfully demonstrated an electrooxidation-solvent extraction-carbon adsorption process for recovering molybdenum and rhenium from offgrade concentrates. The flow sequence consists of dissolution of metal values by electrooxidation, liquid-solid separation by thickening, acidification and chlorate ion removal by sulfur dioxide treatment, solvent extraction to concentrate the molybdenum and rhenium, separation of molybdenum and rhenium by carbon adsorption, and metal recovery by crystallization. Molybdenum and rhenium were recovered as ammonium paramolybdate and ammonium perrhenate.

Download or read book Recovery of Mercury from Cinnabar Ores by Electrooxidation written by Aarne Visnapuu and published by . This book was released on 1975 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of Investigations written by and published by . This book was released on with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preventing Formation of Copper Alloys of Tin Antimony and Arsenic on Steel Surfaces During Reheating to Reduce Hot Shortness written by Mark I. Copeland and published by . This book was released on 1975 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Laboratory Procedures for Hydrometallurgical processing and Waste management Experiments written by Don C. Seidel and published by . This book was released on 1995 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes generic procedures and equipment arrangements for conducting laboratory-scale hydrometallurgical and related waste-management experiments. It provides a starting point for personnel who have received or are receiving professional training, but do not have specific experience in laboratory procedures. With guidance, it also has application as a resource for technician training. The publication contains chapters on laboratory safety, feed-sample preparation, leaching, solids-liquid separation, and recovery from solution.

Download or read book Bureau of Mines Research written by and published by . This book was released on with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrometallurgy in Extraction Processes written by C. K. Gupta and published by CRC Press. This book was released on 1990-08-15 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume set provides a full account of hydrometallurgy. Filled with illustrations and tables, this work covers the flow of source material from the mined or concentrate state to the finished product. It also highlights ion exchange, carbon adsorption and solvent extraction processes for solution purification and concentration. The extensive reference list-over 850-makes this set a valuable resource for extraction and process metallurgists, researchers, and practitioners.

Download or read book Commodity Data Summaries written by United States. Bureau of Mines and published by . This book was released on 1977 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Minerals Yearbook written by United States. Bureau of Mines and published by . This book was released on 1980 with total page 1078 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrometallurgy in Extraction Processes Volume II written by C. K. Gupta and published by Routledge. This book was released on 2017-11-01 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume set provides a full account of hydrometallurgy. Filled with illustrations and tables, this work covers the flow of source material from the mined or concentrate state to the finished product. It also highlights ion exchange, carbon adsorption and solvent extraction processes for solution purification and concentration. The extensive reference list-over 850-makes this set a valuable resource for extraction and process metallurgists, researchers, and practitioners.

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Commodity Data Summaries written by and published by . This book was released on 1977 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book R D Abstracts written by Technology Reports Centre (Great Britain) and published by . This book was released on 1976 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tools for Green Chemistry written by Evan S. Beach and published by John Wiley & Sons. This book was released on 2017-06-12 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 10 in the Handbook of Green Chemistry series provides useful and practical tools, databases, and laboratory approaches to support chemists working in both academia and industry in achieving their green chemistry goals. Among many other helpful techniques covered, the authors offer prediction software, life cycle assessment methodology, and screening tools.

Download or read book Information Circular written by and published by . This book was released on 1995 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Extractive Metallurgy of Molybdenum written by C.K. Gupta and published by Routledge. This book was released on 2017-11-13 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extractive Metallurgy of Molybdenum provides an up-to-date, comprehensive account of the extraction and process metallurgy fields of molybdenum. The book covers the history of metallurgy of molybdenum from its beginnings to the present day. Topics discussed include molybdenum properties and applications, pyrometallurgy of molybdenum, hydrometallurgy of molybdenum, electrometallurgy of molybdenum, and a survey of molybdenum resources and processing. The book will be a useful reference for metallurgists, materials scientists, researchers, and students. It will also be an indispensable guide for world producers, processors, and traders of molybdenum.