Mineralogical mass balancing by dissolution methodology (original) (raw)
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Crimson Publishers LLC, 2020
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Mineral Preparation in Geological Research
Springer Proceedings in Earth and Environmental Sciences, 2019
Paper deals with discussion of minerals’ preparation requiring high purity monoproducts, this has special importance for minerals –geochronometers. Widely used methods including gravitation, magnetic separation, floatation provide fractions with 90% of targeted mineral. Further monominerality increase requires special separation methods; one of them – “Strat” is perspective. It is based on separation in organic liquids under gradual density change. Combination of bromoform with d – 2.89 g/sm3 and dimethyle formamide with d – 0.8 g/sm3 is used; density gradations till 0.001 g/sm3 are possible therefore isomorphic inclusions could be separated. Another direction is presented by trybotreatments under higher energies in planetary mills with a centrifugal factor to 40–50 g. Exotic surface substances presented mainly by kaolinite, muscovite, calcite, gothite are removed as trybotreatment result. Special planetary mills - classifiers are used for processing of big samples. This method toge...
Geometallurgy, 2018
Increasing competition in the minerais industry and fluctuating coramodity prices require new ways of saving energy, lime, and general operational costs. A good understanding of physical processing or pre-processing streams that can potentially cut these costs requires detailed analyses of chemical and physical behaviours and processing responses during rainera]. processing. It is very useful to perform a detailed mineralogical and micro-textural characterization of materials (ore, tailings, and waste) that addresses, among other parameters, particle and grain sizes, as well as particle densifies. The choice and/or corabination of the 'best' processing approaches is crucial for processing efficiencies, and can be established and verified by using automated mineralogy with the associated software. A sample of low-grade iron ore from El Volcan, Mexico, serves as an example to demonstrate in a step-by-step approach how QEMSCAN® analyses provide processing information. Elements under consideration include iron, phosphorus, and sulphur.