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Gravity-centrifuge technology of concentrating minerals
Russian Journal of Non-Ferrous Metals, 2007Based on an analysis of gravity-centrifuge methods of mineral concentration and ways of the enhancement of their performance, a high-efficiency environmentally appropriate and resource-saving technology of separation of loose mixtures of minerals has been developed. The method suggested can be used in the building, metallurgical, and mining industries.
L. L. Korsak, V. N. Lygach
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Multi-gravity separator: an alternate gravity concentrator to process coal fines
Mining, Metallurgy & Exploration, 2007The multi-gravity separator (MGS) is a novel piece of equipment for the separation of fine and ultra-fine minerals. However, the published literature does not demonstrate its use in the separation of coal fines. Therefore, an attempt was made to study the effects of different process variables on the performance of an MGS for the beneficiation of coal ...
A. K. Majumder +2 more
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SPECIFIC GRAVITY AND OSMOLALITY AS MEASURES OF URINE CONCENTRATION IN THE CALF
Australian Veterinary Journal, 1976Specific gravity and osmolality were determined for daily urine output from 8 male calves that developed diarrhoea. Both factors increased significantly during diarrhoea. From the correlation (r = 0.724) between them and the range of predicted osmolality values for any particular SG the use of osmolality was confirmed as a precise measure of urine ...
Thornton J.R., English P.B.
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Normalization of Urinary Drug Concentrations with Specific Gravity and Creatinine
Journal of Analytical Toxicology, 2009Excessive fluid intake can substantially dilute urinary drug concentrations and result in false-negative reports for drug users. Methods for correction ("normalization") of drug/metabolite concentrations in urine have been utilized by anti-doping laboratories, pain monitoring programs, and in environmental monitoring programs to compensate for ...
Edward J, Cone +5 more
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The myth of gravity concentration to eliminate mercury use in artisanal gold mining
The Extractive Industries and Society, 2021Gerardo Martinez
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Russian Journal of Non-Ferrous Metals, 2009
Jigging technology in a closed cycle is tested and optimized at one department of industrial gold mining for the final concentration of gravity concentrates with the use of PGShOK-50-2 sprinkling installation. The equation of regression—which adequately describes the dependence of the Goden selectivity index on the travel and vibration frequency of the
S. I. Evdokimov, A. M. Pan’shin
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Jigging technology in a closed cycle is tested and optimized at one department of industrial gold mining for the final concentration of gravity concentrates with the use of PGShOK-50-2 sprinkling installation. The equation of regression—which adequately describes the dependence of the Goden selectivity index on the travel and vibration frequency of the
S. I. Evdokimov, A. M. Pan’shin
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Upgrading of gold gravity concentrates : a study of the Knelson concentrator
1996In recent years, the Knelson Concentrator has become the predominant unit used for primary gold recovery by gravity. However, its application potential as a cleaner in the final gravity concentration stage and its separation mechanisms have not been well studied.
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Beneficiation of printed wiring boards with gravity concentration
Conference Record 2002 IEEE International Symposium on Electronics and the Environment (Cat. No.02CH37273), 2003With the ever-increasing problem of addressing end-of-life electronics, more emphasis is being placed on recycling and reuse. Between the years 1997 and 2007, experts estimate that we will have more than 500 million obsolete computers in the United States.
P. Galbraith, J.L. Devereux
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Gravity Concentration In Modern Mineral Processing
1986A review is presented of the range and type of gravity separation processes available and employed in modern ore treatment plants. Recent trends in gravity plant design, equipment and practices are identified to maximize productivity, improve metallurgical performance, minimize capital and operating costs and/or permit the profitable treatment of lower
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