Academic literature on the topic 'Leveäniemi'

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Journal articles on the topic "Leveäniemi"

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Lishchuk, Viktor, Cecilia Lund, Pierre-Henri Koch, Mattias Gustafsson, and Bertil I. Pålsson. "Geometallurgical characterisation of Leveäniemi iron ore – Unlocking the patterns." Minerals Engineering 131 (January 2019): 325–35. http://dx.doi.org/10.1016/j.mineng.2018.11.034.

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Ambrosiani, Karin Garcia. "Interstadial minerogenic sediments at the Leveäniemi mine, Svappavaara, Swedish Lapland." Geologiska Föreningen i Stockholm Förhandlingar 113, no. 4 (December 10, 1991): 273–87. http://dx.doi.org/10.1080/11035899109453201.

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ROBERTSSON, ANN-MARIE. "Reinvestigation of the interglacial pollen flora at Leveäniemi, Swedish Lapland." Boreas 26, no. 2 (January 16, 2008): 81–89. http://dx.doi.org/10.1111/j.1502-3885.1997.tb00654.x.

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Dissertations / Theses on the topic "Leveäniemi"

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Cárdenas, Efraín. "Particle tracking in geometallurgical testing for Leveäniemi Iron ore, Sweden." Thesis, Luleå tekniska universitet, Mineralteknik och metallurgi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-65988.

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In a particle based geometallurgical model, the behavior of the particles can be used for forecast the products and quantify the performance of the different ore types within a deposit. The particle tracking is an algorithm developed by Lamberg and Vianna 2007 whose aim is to balance the liberation data in a mineral processing circuit composed by several processing units. Currently, this tool is being developed for the HSC Chemistry software by Outotec.The objective of this study is to understand and evaluate the particle tracking algorithm in a geometallurgical test for iron ore. To achieve this objective, the liberation data is balanced in a Davis tube test circuit. A total of 13 samples from Leveäniemi iron ore were process in a Davis tube circuit.The magnetite is the main mineral in the Leveäniemi iron ore samples. Its high recovery in the Davis tube circuit along with the V, Ti and Mn suggest that these elements are present in the magnetite lattice. These penalty elements in the iron concentrates cannot be avoided at the stage of mineral concentrations.The washing effect of the Davis tubes controlled by the rotational and longitudinal agitation of the tube perturb the particles agglomeration between the pole tips of the electromagnet. A higher agitation frequency and amplitude will wash away most of the gangue minerals and also fine grained magnetite.In this work, the particle tracking is depicted and implemented in a magnetic separation circuit for high liberated material. The liberation data was balanced in a way that the particle classes can be followed through circuit and their recoveries can be calculated. Nevertheless, the algorithm requires further validation and analysis of its limitations in terms of resolution and reproducibility.
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Singh, Kartikay. "A Geometallurgical Forecast Modelfor Predicting Concentrate Quality in WLIMS Process for Leveäniemi Ore." Thesis, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-65970.

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Previous studies have suggested that Davis tube (DT) experiment can used to study wet low intensitymagnetic separation (WLIMS) for magnetic iron ores. But DT process has never been used to mapWLIMS process, specifically in a geometallurgical framework. This thesis work is a step towardsfulfilling this gap by studying the Davis tube experiment performed on 13 different samples fromLeveäniemi iron ore deposit. The methodology adapted to map WLIMS concentrate quality includesstudy and analysis of feed, DT and WLIMS. Analyses were made using experimental data, processingdata using some analytical tools, some data-processing tools and post processing tools. For coveringthe geometallurgical aspect the analysis was done for both elements and minerals. The results fromthis study has reviled that DT can be used to predict WLIMS concentrate quality to an acceptablelevel of confidence. Furthermore, results show that a combination of DT and WLIMS informationproduce very accurate and highly reliable models for predicting and mapping WLIMS concentratequality. This work serves as the first step towards studying an unexplored field pertaining to magneticiron ore concentrate and has opened door to possible future work that could take this work a stepfurther. Supplementing this study with more data from different sample is required not only tovalidate the model but also to make it better. A better modal mineralogy of the samples is needed tounlock the full potentials of mineralogical modelling approach used in this work.

I am a graduate from the of Erasmus Mundus masters in Georesource Engineering, 2017.


Primary Resource Efficiency by Enhanced Prediction (PREP)
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