Sökning: "scarce metals"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden scarce metals.

  1. 1. Towards recycling of scarce metals from complex products

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Magnus Andersson; [2018]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; material flow analysis; Recycling; waste electrical and electronic equipment; scarce metal; end-of-life vehicle; WEEE; ELV; technological innovation system;

    Sammanfattning : Cars and electronic equipment have come to depend on materially complex designs and are drawing attention to issues around sustainable materials management. The dependence of these products and other applications on metals that can be considered scarce, has been brought into political and scientific focus. LÄS MER

  2. 2. The Specter of Scarcity Experiencing and Coping with Metal Shortages, 1870-2015

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Hanna Vikström; KTH.; [2017]
    Nyckelord :HUMANIORA; HUMANITIES; scarcity; critical metals; Sweden; small countries; strategic metals; metal shortages; history of technology; experiences of scarcity; coping with shortages; technological trends; World War I; resource crisis; construction of resources.; History of Science; Technology and Environment; Historiska studier av teknik; vetenskap och miljö;

    Sammanfattning : In spite of an ever-growing supply of metals, actors have long feared metal shortages. This thesis – departing from an understanding that metals scarcity is not an objective geological fact, but an experience, a fear of a shortage – explores why business and state actors have experienced metals as scarce and how they coped with scarcity from 1870 to 2015. LÄS MER

  3. 3. Resource and Environmental Impacts of Resource-Efficiency Measures Applied to Electronic Products

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Hampus André; [2018]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; scarce metals; life cycle assessment; resource-efficiency; electronic products; resource depletion; circular economy; metal resource use;

    Sammanfattning : Natural resources such as ecosystems, land, water and metals underpin the functioning of economies and human well-being, and are becoming increasingly scarce due to growth in population and affluence. Metals are increasingly demanded for their specific properties as modern technology develops. LÄS MER

  4. 4. Leaching and solvent extraction of rare earth metals from fluorescent lamp waste

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Cristian Tunsu; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; rare earth metals; leaching; waste treatment; solvent extraction; Cyanex 923; florescent lamp waste; recycling;

    Sammanfattning : With the rapid advancement of technology, the demand for elements such as rare earth metals (REMs) has increased considerably during the last decade. Many countries are facing problems securing sustainable supplies, a fact acknowledged in many publications. LÄS MER

  5. 5. Innovating Recycling of End-of-Life Cars

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Magnus Andersson; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; End-of-Life; Scarce Metal; Material Flow Analysis; Vehicle; Technological Innovation System; Car; Critical Material; Recycling;

    Sammanfattning : There are currently a billion cars in use worldwide, and car design trends point at increasing variety in material utilisation. Cars today contain several types of steel and aluminium, an assortment of textiles and padding materials, and an increasing amount of polymers and scarce metals. LÄS MER