The mobility of platinum-group elements in humic acid under surficial weathering conditions : an experimenal study

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dc.identifier.uri http://dx.doi.org/10.15488/9247
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/9300
dc.contributor.author Kotzé, Emmylou ger
dc.date.accessioned 2020-01-28T10:39:48Z
dc.date.available 2020-01-28T10:39:48Z
dc.date.issued 2019
dc.identifier.citation Kotzé, Emmylou: The mobility of platinum-group elements in humic acid under surficial weathering conditions : an experimenal study. Hannover : Gottfried Wilhelm Leibniz Universität, Diss., 2019, 129 S. DOI: https://doi.org/10.15488/9247 ger
dc.description.abstract Although the platinum-group elements (PGE) are known to be mobile under certain conditions in the surficial weathering environment, their mobilization in the presence of humic substances is poorly constrained. In these experiments, platinum and palladium were mobilized and analyzed in solution using laboratory preparations of humic acid solutions, synthetic minerals, and naturally occurring chromitite samples. The composition of synthetic humic acid is an average of naturally occurring humic substances. Experiments were carried out using humic acid powder (HAP), humic acid sodium salt (HASS) and water as solutions. Synthetic powders of PdS, PtS2, PdTe and PdTe2 were used as substrate for the solutions, along with chromite concentrate and tailings material from the Thaba Mine, South Africa. These substrates were exposed to water, HAP and HASS in different concentrations and for different periods of time. ger
dc.language.iso eng ger
dc.publisher Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
dc.rights Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. ger
dc.subject geochemistry eng
dc.subject humic acids eng
dc.subject organic chemistry eng
dc.subject PGE minerals eng
dc.subject ore deposits eng
dc.subject PGEs ger
dc.subject Geochemie ger
dc.subject Huminsäure ger
dc.subject organische Chemie ger
dc.subject PGE-Mineralien ger
dc.subject Lagerstätten ger
dc.subject.ddc 550 | Geowissenschaften ger
dc.title The mobility of platinum-group elements in humic acid under surficial weathering conditions : an experimenal study ger
dc.type doctoralThesis ger
dc.type Text ger
dc.description.version publishedVersion ger
tib.accessRights frei zug�nglich ger


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