Download or read book Recovery of Uranium from Wet Process Phosphoric Acid by Solvent Extraction written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The OPPA process offers three potential advantages over the DEPA-TOPO process. The OPPA extractant is much less expensive and has a higher extraction power for uranium than the DEPA-TOPO solvent. In addition it extracts U(IV), the prevailing oxidation state of uranium in wet-process phosphoric acid and this eliminates the liquor oxidation step required in the DEPA-TOPO process. However, the DEPA-TOPO solvent is known to be extremely stable and this process has been successfully demonstrated on a pilot-plant scale at phosphate plants. It is understood that several companies are planning to commercialize this process in the near future. On the other hand, the potentially more attractive OPPA process has not been proven in a pilot plant operation and some questions about the solubility and stability of the OPPA need to be answered. Because of the wide spread interest in this process, a program was started in cooperation with Mobil and Allied Chemical companies to study this extractant, to identify and isolate the material that solubilizes the mono- and diacids, and to determine the optimum concentration and ratios for uranium extraction. In addition, a long-term cyclic test is planned to better define solubility losses and stability of the extractant. Consideration will also be given to improving the recovery of uranium lost to the gypsum during calcination. 12 figures. (auth).

Download or read book Recovery of Uranium from Superphosphate written by A. W. Andresen and published by . This book was released on 1955 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recovery of By product Uranium by the Solvent Extraction Method written by R. E. Berning and published by . This book was released on 1953 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: A solvent extraction process for the recovery of Uranium from Phosphoric Acid is described. The process steps which include reduction, extraction, unloading and acid clean-up are presented in detail. An estimated process cost is also presented.

Download or read book Recovery of Uranium from Wet Phosphoric Acid by Solvent Extraction Processes written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Between 1951 and 1991, about 17 processes were developed to recover uranium from wet phosphoric acid (WPA), but the viability of these processes was subject to the variation of the uranium price market. Nowadays, uranium from WPA appears to be attractive due to the increase of the global uranium demand resulting from the emergence of developing countries. The increasing demand provides impetus for a new look at the applicable technology with a view to improvements as well as altogether new approaches. This paper gives an overview on extraction processes developed in the past to recover uranium from wet phosphoric acid (WPA) as well as the physicochemistry involved in these processes. Recent advances concerning the development of new extraction systems are also reported and discussed.

Download or read book The Recovery of Uranium from Industrial Phosphoric Acids by Solvent Extraction written by D. A. Ellis and published by . This book was released on 1952 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Solvent Extraction of Uranium from Wet process Phosphoric Acid written by Fred J. Hurst and published by . This book was released on 1969 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nursing theory, the foundation of knowledge for the delivery of nursing care, is used to describe, explain, predict and develop a plan of nursing care. Shows how nursing theory is applied to nursing practice and patient care.

Download or read book Solvent Extraction of Uranium written by and published by . This book was released on 1957 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Uranium Recovery written by Henry M. Heidt and published by . This book was released on 1955 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recovery of Uranium from Phosphoric Acid written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The U is recovered from the wet-process phosphoric acid by either single-cycle or two-cycle solvent extraction. The equipment used are illustrated using flowsheets and slides. 8 figures. (DLC).

Download or read book Recovery of Uranium from Colorado Plateau Ores by Solvent Extraction written by David A. Ellis and published by . This book was released on 1955 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Recovery of Uranium from Industrial Phosphoric Acids by Solvent Extraction written by and published by . This book was released on 1952 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: A process for the recovery of uranium from industrial phosphoric acids by liquid-liquid extraction with alkyl ortho- and pyro-phosphoric acids is described. Studies of the chemistry and mechanics of the extraction process and various methods for recovery of uranium from the organic extract are reported. jg p.5.

Download or read book Solvent Extraction Recovery of Vanadium and Uranium from Acid Liquors with Di 2 ethylhexyl Phosphoric Acid written by D. J. Crouse and published by . This book was released on 1959 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Solvent Recovery and Reclamation Jun 76 May 80 written by and published by . This book was released on 1980 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Solvent Recovery and Reclamation Jun 70 Jun 80 written by and published by . This book was released on 1980 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Solvent Extraction Separation of Uranium from Acid Leach Liquors and Pulps written by J. R. Ross and published by . This book was released on 1956 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recovery of Uranium from Wet process Phosphoric Acid Using the Depa topo Process written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Uranium Ore Processing and Recovery from Non conventional Resources written by International Atomic Energy Agency and published by Agency. This book was released on 1985 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: