Download or read book Radium Removal from Uranium Ores and Mill Tailings written by S. Ralph Borrowman and published by . This book was released on 1975 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radium Removal from Uranium Ores and Mill Tailings written by S. Ralp Borrowman and published by . This book was released on 1975 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Removal of Hazardous Radionuclides from Uranium Ore And or Mill Tailings Progress Report October 1 1978 September 30 1979 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The leaching of uranium ore and mill tailings to remove radium was studied. A few scouting tests were performed to obtain data on the recovery of radium, thorium, and uranium from leach liquors and on the recycle of leaching agents. Nitric acid, hydrochloric acid, ethylenediaminetetraacetic acid (EDTA), and diethylenetriaminepentaacetic acid (DTPA) were evaluated as leachants using one sample of a western US ore and two samples of tailings obtained from different uranium mills that employ the sulfuric acid leach process. Leached solids with radium contents approaching 10 pCi/g (98% radium removal) were obtained after six stages of batch, crosscurrent leaching with 3 M HNO3 at 33% concentration of solids and a temperature of 60°C. On the basis of two-stage tests on mill tailings, 0.5 M EDTA solutions at pH values of 8.2 to 11.6 were found to be more effective, while hydrochloric acid in two- or three-stage tests was less effective than nitric acid. Solutions of 0.3 M EDTA and 0.05 M DTPA were ineffective. No important differences were observed in the leaching behavior of ore and of mill tailings derived from the same ore. The residue remaining after six stages of nitric acid leaching was relatively intractable to radium leaching with water or additional nitric acid leaching. Tests indicated that the recycle of nitric acid is chemically feasible by evaporating the leach liquors to recover unused acid and then thermally decomposing the metal salts to recover consumed acid. Radium recoveries of 99+% by carrying on barium sulfate were shown to be chemically feasible in a series of experiments with leach liquors, but processing applications would probably require methods for barium recycle and barium-radium separation. Recovery of 23°Th and uranium from nitrate leach liquors by tri-n-butyl phosphate extraction appears promising in initial tests.
Download or read book Uranium Mill Tailings written by Bernice Steinhardt and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Absorption of radium and thorium from Wyoming and Utah uranium mill tailings solutions written by H. R. Beard and published by . This book was released on 1979 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radioactive Waste Processing and Disposal written by U.S. Nuclear Regulatory Commission and published by . This book was released on 1980 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book La Gestion Des Residus Du Traitement de L uranium written by OECD Nuclear Energy Agency and published by OECD ; [Washington, D.C. : OECD Publications and Information Center. This book was released on 1982 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Disposal of Uranium Mill Tailings a Study of Leaching of Radium 226 and Its Fate in the Environment written by Jatin Shantilal Nathwani and published by c1978.. This book was released on 1978 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State of the Art Uranium Mining Milling and Refining Industry written by Don A. Clark and published by . This book was released on 1974 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book UMTRA Uranium Mill Tailings Remedial Action Project written by and published by . This book was released on 1987 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Second Interim Report on Investigations Into the Problem of Radioactive Pollution of Uranium Mill Effluents written by M. A. DeSesa and published by . This book was released on 1959 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Controlling the Radiation Hazard from Uranium Mill Tailings Energy Research and Development Administration Nuclear Regulatory Commission written by United States. General Accounting Office and published by . This book was released on 1975 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Removal of Hazardous Radionuclides from Uranium Ore And or Mill Tailings written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gestion Des R sidus Du Traitement de L uranium written by and published by . This book was released on 1982 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Uranium Mill Tailings Control Act of 1978 written by United States. Congress. House. Committee on Interstate and Foreign Commerce. Subcommittee on Energy and Power and published by . This book was released on 1979 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technological Approaches to the Cleanup of Radiologically Contaminated Superfund Sites written by and published by . This book was released on 1988 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Long Term Stabilization of Uranium Mill Tailings written by and published by . This book was released on 2004 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes the current state of the art of uranium mill tailings disposal and the results from an IAEA Coordinated Research Project (CRP) on technologies and strategies for their long term stabilization. The aim of the CRP was to develop conceptual and technical solutions that render tailings more inert over prolonged time spans.
