44 research outputs found

    What If States Realized Their Societal Goals Through Alliances Built on Critical Raw Materials?

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    This scenario explores what could happen if groups of states joined forces with like-minded allies to realize societal goals that can only be attained through an ample supply of raw materials: decarbonization, militarization, digitalization, and securing enough energy to bolster emerging middle classes. By 2030, four alliances emerge. Each one aims to accomplish its own discrete goals, and all are alienated from the others. The EU, which belongs to an alliance of circular economies, asks itself what steps it can take to promote the global stewardship of public goods and civil liberties

    Rückgewinnung von Indium aus Bildschirmen: Ist das sinnvoll?

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    Bildschirme enthalten seltene Metalle, die heute bei der Entsorgung verloren gehen. Eine Studie zur Rückgewinnung von Indium zeigt: Das Recycling ist ökologisch sinnvoll und wirtschaftlich tragbar

    Innovations for the sustainability transformation: Conceptual cornerstones of the saguf working group INSIST

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    How can we understand, analyze and design innovations for the sustainability transformation? The newly formed saguf working group INSIST explores the links between sustainability, innovation and transformation in theoretical, empirical and practical respects. The focus is to move away from a technicist framework of ecological modernization to a more reflexive and inclusive concept of transformative innovation

    Characterizing the Urban Mine—Challenges of Simplified Chemical Analysis of Anthropogenic Mineral Residues

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    Anthropogenic mineral residues are characterized by their material complexity and heterogeneity, which pose challenges to the chemical analysis of multiple elements. However, creating an urban mine knowledge database requires data using affordable and simple chemical analysis methods, providing accurate and valid results. In this study, we assess the applicability of simplified multi-element chemical analysis methods for two anthropogenic mineral waste matrices: (1) lithium-ion battery ash that was obtained from thermal pre-treatment and (2) rare earth elements (REE)-bearing iron-apatite ore from a Swedish tailing dam. For both samples, simplified methods comprising ‘inhouse’ wet-chemical analysis and energy-dispersive Xray fluorescence (ED-XRF) spectrometry were compared to the results of the developed matrix-specific validated methods. Simplified wet-chemical analyses showed significant differences when compared to the validated method, despite proven internal quality assurance, such as verification of sample homogeneity, precision, and accuracy. Matrix-specific problems, such as incomplete digestion and overlapping spectra due to similar spectral lines (ICP-OES) or element masses (ICP-MS), can result in quadruple overestimations or underestimation by half when compared to the reference value. ED-XRF analysis proved to be applicable as semi-quantitative analysis for elements with mass fractions higher than 1000 ppm and an atomic number between Z 12 and Z 50. For elements with low mass fractions, ED-XRF analysis performed poorly and showed deviations of up to 90 times the validated value. Concerning all the results, we conclude that the characterization of anthropogenic mineral residues is prone to matrix-specific interferences, which have to be addressed with additional quality assurance measures.DFG, 414044773, Open Access Publizieren 2019 - 2020 / Technische Universität BerlinEC/H2020/641999/EU/ Prospecting Secondary raw materials in the Urban mine and Mining waste/ProSU

    A geological reconnaissance of electrical and electronic waste as a source for rare earth metals

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    The mining of material resources requires knowledge about geogenic and anthropogenic deposits, in particular on the location of the deposits with the comparatively highest concentration of raw materials. In this study, we develop a framework that allows the establishment of analogies between geological and anthropogenic processes. These analogies were applied to three selected products containing rare earth elements (REE) in order to identify the most concentrated deposits in the anthropogenic cycle. The three identified anthropogenic deposits were characterised according to criteria such as “host rock”, “REE mineralisation” and “age of mineralisation”, i.e. regarding their “geological” setting. The results of this characterisation demonstrated that anthropogenic deposits have both a higher concentration of REE and a longer mine life than the evaluated geogenic deposit (Mount Weld, Australia). The results were further evaluated by comparison with the geological knowledge category of the United Nations Framework Classification for Fossil Energy and Mineral Reserves and Resources 2009 (UNFC-2009) to determine the confidence level in the deposit quantities. The application of our approach to the three selected cases shows a potential for recovery of REE in anthropogenic deposits; however, further exploration of both potential and limitations is require

    Kritische Metalle: Wie die Schweizer Industrie vorsorgen kann

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    Im April 2016 organisierten der Entwicklungsfonds Seltene Metalle ESM, MatSearch Consulting Hofmann, die Empa sowie Life Cycle Consulting Althaus mit Unterstützung der SATW einen Workshop zum Thema «Daten-Netzwerk für kritische Rohstoffe». Der Terminus «kritische Rohstoffe» bezieht sich auf die von der Europäischen Union definierten Rohstoffe, hauptsächlich Metalle, die in Zukunft für den Wirtschaftsstandort dringend gebraucht werden, die aber aufgrund ihres Versorgungsrisikos ein Risiko für Europas Wirtschaft darstellen – zum Beispiel die Seltenen Erdelemente, aber auch Elemente wie Indium, Kobalt, Wolfram und viele andere. Workshop «Daten-Netzwerk kritische Rohstoffe» Teilnehmende aus Forschung, Industrie, mittelständischen Unternehmen, Verbänden und Politik diskutierten Möglichkeiten, wie die Schweiz auf drohende Versorgungsengpässe mit kritischen Rohstoffen reagieren kann. Moderierte Diskussionsgruppen befassten sich mit dem Einfluss kritischer Rohstoffe auf den Schweizer und den europäischen Markt. Sie identifizierten Hindernisse für eine adäquate Priorisierung des Themas in Unternehmen sowie relevante Akteure und besprachen Möglichkeiten, mehr Transparenz im Bereich kritischer Rohstoffe zu schaffen. Als grösste Herausforderung wurde nicht ein Mangel an Daten identifiziert, sondern ein unübersichtlicher Informationsfluss und fehlende Möglichkeiten für Firmen, sich individuell zu informieren sowie mangelndes Wissen über Strategien, wie mit Rohstoffknappheit umgegangen werden kann. Die grösste Herausforderung für die Schweiz und Europa besteht darin, das Bewusstsein für die Problematik der sicheren Verfügbarkeit kritischer Rohstoffe zu erhöhen. Die Kurzbroschüre bietet einen Überblick über das Thema mit speziellem Fokus auf die Schweiz
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