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Showing 1 to 20 of 274 for “"Ores"”.
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The Enrichment of Nickel Ores
University of Minnesota Masters thesis. 1917. 1 computer file (PDF); 38 pages.
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A new volumetric assay for lead ores
Thesis: B.S., Massachusetts Institute of Technology, Department of Chemistry, 1870
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Collectorless flotation of chalcopyrite and sphalerite ores
… the use of collectors. Of the six chalcopyrite ores tested in the present work, some floated well using only a frother, while others required the addition of sodium sulfide, presumably to remove the hydrophilic surface oxidation products. On the other hand, the flotation of sphalerite ores was …
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Noble gases anomalies in terrestrial ores and meteorites
… composition of xenon and krypton in terrestiral ores containing tellurium, selenium or iodine resulted in the following conclusions: 1. The double beta-decay half-life for ¹³⁰Te is 2.51 x 10²¹ years from analysis of tellurobismuthite from Boliden, Sweden and 2.83 x 10²¹ years from analysis of …
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Differential flotation of low grade gold pyrite ores
Includes bibliographical references.
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Identification of platinum ores via trace element signatures
This project studies the natural variation in the elemental composition of processed platinum ore from different extraction locations in South Africa in order to assess whether this provides sufficient information for the elemental fingerprinting" of the material.
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Integrated mining and preconcentration systems for nickel sulfide ores
As part of a strategic research initiative at UBC to design and evaluate integrated underground mining and mineral processing systems, work has been done to determine how to utilize the coarse rejects of pre-concentration in the underground environment. An amenability study for nine orebodies from …
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Distribution of precious metals and geochemistry of lateritic ores
Three lateritic profiles from different localities and of varying depth and degrees of development were analyzed for precious metals, platinum, palladium, iridium and gold by radiochemical neutron-activation analysis. In addition, the distribution of major, minor and other trace constituents (iron, …
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Spectrographic analysis of carnotite ores for their U3O8 content
Includes bibliographical references.
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Process for the recovery of manganese from ores, A
Includes bibliographical references.
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Recovery of copper from low-grade ores by Aspergillus niger
… of metals that are embodied in low-grade ores and mining residues, these are considered new sources of metals. On the other hand they potentially imperil the environment, as the metals they contain may be released to the environment in a hazardous form. Hence, mining industries are seeking …
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Investigating depressant behaviour in the flotation of selected Merensky ores
… to sulfide and gangue minerals, of two Merensky ores with different mineralogy, in the presence of depressants; and contributes to the increased understanding of depressant behaviour in the flotation of Merensky ores. The ores were obtained from the southern section of the Merensky reef in the …
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A study of the iron ores at Iron Mountain, Missouri
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Geology, 1931.
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Deep Eutectic Solvents for the Leaching of Cobalt from Oxide Ores
… respectively. Conventional processing of these ores is currently extremely energy-intensive and/or utilises toxic mineral acids, whilst the high degree of variability of Co ore mineralogy and geochemistry makes its extraction inefficient and technically challenging. As a result, there is a …
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Design and manufacture study of Ocean Renewable Energy Storage (ORES) prototype
… on land using lakes and dams. Evolution of the ORES project will be presented and design iterations discussed in detail. Each design option is evaluated to better understand advantages and disadvantages. Concrete related tests were conducted to develop manufacturing process and evolve design …
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The mineralogical deportment of radionuclides in South Australian Ca-Au-(U) ores
… (RN) from the 238U decay series within the ores necessitates a detailed understanding of their mineralogical deportment as a pre-requisite for attempts to remove or reduce RN concentrations. Research presented in this thesis contributes towards this knowledge by identifying and …
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On the selective flotation of pentlandite from pyrrhotite in Sheba's Ridge ores
… that are already in use in the flotation of BIC ores to control the naturally floating gangue minerals such as talc. Microflotation tests were conducted on a high grade Nkomati massive sulphide ore sample as a probe ore, to investigate the flotation response of pentlandite and pyrrhotite to four …
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The role of collectors in the flotation of partially oxidised copper ores
… partially oxidised and oxidised copper sulphide ores were investigated in this study. More specifically, the role of the functional groups of the collectors, their dosages and the effect of collector mixtures and their dosages were investigated. Batch flotation tests were used to assess the …
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