The Selection Of A Matrix For The Recovery Of Uranium By Wet High Intensity Magnetic Separation
DOWNLOAD
Download The Selection Of A Matrix For The Recovery Of Uranium By Wet High Intensity Magnetic Separation PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get The Selection Of A Matrix For The Recovery Of Uranium By Wet High Intensity Magnetic Separation book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
The Selection Of A Matrix For The Recovery Of Uranium By Wet High Intensity Magnetic Separation
DOWNLOAD
Author : Jan Svoboda
language : en
Publisher:
Release Date : 1985
The Selection Of A Matrix For The Recovery Of Uranium By Wet High Intensity Magnetic Separation written by Jan Svoboda and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Magnetic separation of ores categories.
Wet High Intensity Magnetic Separation Laboratory Tests Conducted In 1978 And 1979
DOWNLOAD
Author : J. Levin
language : en
Publisher:
Release Date : 1980
Wet High Intensity Magnetic Separation Laboratory Tests Conducted In 1978 And 1979 written by J. Levin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with categories.
Miscellaneous laboratory tests (most of them on cyanide residues) were undertaken to supplement on-site pilot-plant work on wet high-intensity magnetic separation (WHIMS). Initially, the main concern was with blockage of the matrix, and consideration was given to the use of a reverse-flushing system. The laboratory tests on this system were encouraging, but they were not of sufficiently long duration to be conclusive. When the continuous ball-discharge and washing system was developed at the National Institute for Metallurgy, the blockage problem lost its urgency, and the laboratory work was applied to an investigation of the performance of WHIMS machines. The laboratory tests were the 'standard' test (developed to provide a simple and highly reproducible test), a batch test with free-fall feed, a batch test with controlled feed (up-flow), and a continuous test using a Carpco laboratory separator. Each of these methods is suitable for a particular purpose. The Carpco separator gives low recoveries because of its shallow matrix, but the recovery to be expected in practice can be matched if the feed is passed twice through the separator. The velocity of the pulp through the matrix is important, because it determines the capacity of the separator and the recovery obtainable. Of almost equal importance is the magnetic load, which affects the velocity of the pulp and the recovery. Typically, a recovery of 51 per cent of the uranium was reduced to one of 40 per cent as the magnetic load was increased from 25 to 100 g/l, while the pulp velocity (calculated from the volumetric flow through the matrix and the cross-section of the matrix) decreased from 62 to 36 mm/s. There was some indication that, for the same pulp velocity, lower recoveries are obtained when free-fall feeding is used. Recoveries are reduced when the magnet field current is reduced; each particle size is affected equally, so that the size-recovery distribution curves for high and low field strengths have a similar shape. A reduction in recovery of 4 to 5 per cent was observed in a test simulating the effect of the air gaps in the magnetic circuit of a continuous separator. Some benefit was observed in the application of WHIMS to coarsely ground ore; from a Blyvooruitzicht rod-mill product, 25 per cent of the total uranium was recovered when only 29 per cent of the rod-mill product (the finest portion) was treated. A similar recovery was made from 43 per cent of the rod-mill product from Stilfontein; a second stage of treatment after regrinding raised the overall recovery of uranium to 76,4 per cent. Recoveries of 55 and 42 per cent of the uranium were obtained in tests on two flotation tailings from Free State Geduld. The application of WHIMS to the concentration of chromite in a sample from the UG-2 Reef did not yield an acceptable grade of magnetic product because of the similarity of the magnetic properties of the chromite and the pyroxenes. In a determination of the mass susceptibilities of the constituents in a typical concentrate obtained by WHIMS, it was found that some 20 per cent of the magnetic product had a susceptibility of less than 5,4 x 0,000001 emu but contained 38 per cent of the uranium recovered by WHIMS. A few tests were conducted on different types of matrix. Magnetic stainless-steel balls gave recoveries markedly lower than those obtainable with soft-iron balls; steel balls (said to contain 0,9 per cent carbon) gave recoveries of uranium slightly lower (about 8 per cent) than those obtainable with soft-iron balls. Other tests on various types of matrix were of a tentative nature and inconclusive. A matrix of spaced horizontal rods is recommended for possible future consideration.
Energy Research Abstracts
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1993
Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Power resources categories.
A Development In The Application Of Wet High Intensity Magnetic Separation
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1980
A Development In The Application Of Wet High Intensity Magnetic Separation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with categories.
Wet high-intensity magnetic separation (WHIMS) has been successfully applied to the recovery of gold and uranium from the residues of Witwatersrand ores. Good overall recoveries have been achieved for particles as small as 12 um, and finer particles of uranium minerals are recovered when present as inclusions. The best results were obtained with a matrix of soft-iron balls 6 mm in diameter. However, pilot-plant tests drew attention to a major defect of the machine: the matrix could be blocked by wood chips and ferromagnetic particles. This problem was overcome by the incorporation of a modification that allows the balls to be discharged from the rotating annulus. Two full-scale units that incorporate the modification have been installed.
Uranium Resource Processing
DOWNLOAD
Author : Chiranjib Gupta
language : en
Publisher: Springer Science & Business Media
Release Date : 2003-01-08
Uranium Resource Processing written by Chiranjib Gupta and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-01-08 with Science categories.
The book emphasizes various aspects of processing secondary sources for recovery of uranium. The field of secondary resource processing is gaining ground over the last few years as it is eco-friendly, economical and in tune with the philosophy of sustainable development. The book is the first one of its type in the area and includes a succint and comprehensive description of related areas of ore mineralogy, resource classification, processing principles involved in uranium solubilisation followed by separation and safety aspects. The clear organisation and the carefully selected figures and tables makes the treatment invaluable for practising engineers, research workers and academic institutions.
Journal Of The South African Institute Of Mining And Metallurgy
DOWNLOAD
Author : South African Institute of Mining and Metallurgy
language : en
Publisher:
Release Date : 1985
Journal Of The South African Institute Of Mining And Metallurgy written by South African Institute of Mining and Metallurgy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Mineral industries categories.
Copper 87 Mineral Processing And Process Control
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1988
Copper 87 Mineral Processing And Process Control written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Copper categories.
The Effect Of Particle Size And Colloid Stability On The Wet High Intensity Magnetic Separation Of Uranium From Cyanidation Residues
DOWNLOAD
Author : Jan Svoboda
language : af
Publisher:
Release Date : 1986
The Effect Of Particle Size And Colloid Stability On The Wet High Intensity Magnetic Separation Of Uranium From Cyanidation Residues written by Jan Svoboda and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Magnetic separation of ores categories.
Transactions Of Society Of Mining Engineers Inc
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1989
Transactions Of Society Of Mining Engineers Inc written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Mining engineering categories.
Bureau Of Mines Research
DOWNLOAD
Author : United States. Bureau of Mines
language : en
Publisher:
Release Date : 1980
Bureau Of Mines Research written by United States. Bureau of Mines and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Fuel categories.