Sökning: "Critical metals"

Visar resultat 1 - 5 av 45 uppsatser innehållade orden Critical metals.

  1. 1. Sustainability demands on internal and external providers of IT

    Kandidat-uppsats, Stockholms universitet/Institutionen för data- och systemvetenskap

    Författare :Emma Lenman; Ida Appelgren; [2023]
    Nyckelord :sustainable IT; sustainability; IT; green IT; data governance; energy efficient; greenhouse gas emissions;

    Sammanfattning : The use of IT in companies is constantly expanding, and therefore, so is the energy consumption and carbon footprint from IT. If companies do not take steps towards more sustainable IT usage, the footprint will continue to expand, toxic metals will be used in hardware and the usage of world resources will not become more circular. LÄS MER

  3. 2. Unveiling Contradictions: The Green Energy Transition and Sámi Indigenous Rights in the Per Geijer Expansion, Kiruna, Sweden

    Magister-uppsats, Malmö universitet/Institutionen för Urbana Studier (US)

    Författare :Maria Svensson; Maria Schmidt; [2023]
    Nyckelord :green energy transition; Indigenous rights; extractive industries; mining; sustainable development; Sámi; social sustainability;

    Sammanfattning : In recent decades, there has been a growing recognition of Indigenous rights over traditional territories and natural resources, alongside the intensification of extractive activities on Indigenous lands, often in violation of their rights.The paradox is driven by several factors, including escalating global commodity prices, energy security concerns, and the shift towards green energy. LÄS MER

  4. 3. Utvinning av kritiska metaller från makroalger

    Kandidat-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Mette Grönland; Peter Ohlsson; [2023]
    Nyckelord :macroalgae; metals; critical metals; makroalger; metaller; kritiska metaller;

    Sammanfattning : I samband med befolkningsökning, höjd generell levnadsstandard och teknikutveckling så har behovet av kritiska metaller i samhället ständigt ökat och det är enbart en tidsfråga om när minerallagret av dessa metaller tar slut. För att kunna bemöta framtida behov behövs en mer självständig produktion av kritiska metaller och en mer cirkulär ekonomi. LÄS MER

  5. 4. A Petrographic and Paragenetic Characterization of the Ertelien Ni-Cu Deposit (Norway)

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Alena Niarezka; [2023]
    Nyckelord :Ertelien Ni-Cu deposit; ore geology; enrichment processes; nickel; cobalt; copper; optical microscopy; electron probe micro-analysis; critical metals; Ertelien Ni-Cu fyndighet; malmgeologi; anrikningsprocesser; nickel; kobolt; koppar; optisk mikroskopi; elektronsondsmikroanalys; kritiska metaller;

    Sammanfattning : The escalating demand for metals driven by advancements in renewable energy technologies and hightech products has underscored the significance of understanding and characterizing ore deposits. This study focuses on the Ertelien Ni-Cu deposit in Norway, a region rich in nickel, cobalt, and copper resources—essential components for the transition to a sustainable energy future. LÄS MER

  7. 5. Character and Evolution of Ore Mineralisation in the Te-Rich Enåsen Au-Cu Deposit, Central Sweden

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Simon Pieslinger; [2023]
    Nyckelord :ore geology; partial melting; quenching textures; symplectite; tellurides; critical metals;

    Sammanfattning : The Enåsen gold deposit is located in Gävleborg county in central Sweden. Mining operations at Enåsen took place from 1984 to 1991 with Au as the main target for exploitation. The deposit has been interpreted as a metamorphosed Palaeoproterozoic analogue to near-recent epithermal Au mineralisations of a high sulphidation type. LÄS MER