Search for dissertations about: "vanadium"

Showing result 1 - 5 of 80 swedish dissertations containing the word vanadium.

  1. 1. High Valent Metal Oxo Complexes as Oxidation Catalysts

    University dissertation from Lund University, Faculty of Science, Department of Chemistry, Division of Chemical Physics

    Author : Kamal Hossain; Lunds universitet.; Lund University.; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; molybdenum; tungsten; Vanadium; oxygen atom transfer; epoxidation; sulfoxidation; molybdenum; tungsten; vanadium; oxygen atom transfer; epoxidation; sulfoxidation;

    Abstract : Grundämnena molybden, wolfram och vanadin spelar viktiga roller i biologiska system. De återfinns bl a i ett antal enzymer, där de genomför s k syreöverföringsreaktioner, d v s de tar en syreatom från en molekyl och överför den till en annan molekyl. READ MORE

  2. 2. Vanadium in soils

    University dissertation from Lund University, Faculty of Science, Department of Chemistry, Division of Chemical Physics

    Author : Maja Larsson; Sveriges lantbruksuniversitet.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Vanadium is a redox-sensitive metal that is released to soils by weathering and anthropogenic emissions. Swedish metallurgical slags are naturally high in vanadium and used as soil amendments and in road materials. However, understanding of vanadium chemistry and bioavailability in soils is limited. READ MORE

  3. 3. Dissolved and suspended transport of tungsten, molybdenum, and vanadium in natural waters

    University dissertation from Luleå University of Technology

    Author : Susanne Bauer; Luleå tekniska universitet.; [2018]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; tungsten; molybdenum; vanadium; Baltic Sea; redox cycling; suspended particles; boreal rivers; Applied Geology; Tillämpad geologi;

    Abstract : Some transition metals and metalloids occur primarily as oxyanions in natural waters including antimony, arsenic, chromium, molybdenum, tungsten and vanadium. These oxyanions can pass through cell walls along the same pathways as phosphate or sulfate. Some of these oxyanions are essential for life, but in high concentrations they become all toxic. READ MORE

  4. 4. Experimental investigation of molecular solids and vanadium at high pressure and temperature

    University dissertation from Stockholm : Department of Physics, Stockholm University

    Author : Zsolt Jenei; Stockholms universitet.; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; molecular solid; high pressure; vanadium; phase transition; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik; materiefysik; Physics Of Matter;

    Abstract : Understanding high pressure effects on simple molecular system is of great interest for condensed matter science and geophysics. Accessing the static pressure and temperature regions found in planetary interiors is made possible by the development of the Diamond Anvil Cell technique. READ MORE

  5. 5. A Study on Vanadium Extraction from Fe-V-P Melts Derived from Primary and Secondary Sources

    University dissertation from KTH Royal Institute of Technology

    Author : Mikael Lindvall; KTH.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vanadium; V; V2O5; V2O3; ferrovanadium; vanadiferous; titaniferous; titanomagnetites; magnetite; spinel; slag; experimental; free; spinel; converter; LD; BOF; solubility; equilibrium; selective; oxidation; hibonite; karelianite; Al2O3; CaO; SiO2; Materials Science and Engineering; Teknisk materialvetenskap;

    Abstract : Vanadium extraction methods were developed for iron-vanadium-phosphorus (Fe-V-P) melts derived from processing of V-bearing titanomagnetites and steel slags. Studies on phase relationships of V slags were carried out to provide important understanding of the extraction processes. READ MORE