Sökning: "Vanadium extraction"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Vanadium extraction.

  1. 1. The content, chemical state and accumulation of vanadium in a drill core of Alum shale from Kinnekulle

    Kandidat-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Niklas Gunnarsson; [2019]
    Nyckelord :Alum Shale Formation; Alum shale; Kinnekulle; Vanadium; Inorganic chemistry; Oorganisk kemi; Chemistry;

    Sammanfattning : Exploitation of alum shale is a controversial subject in Sweden due to the history of pollution of the environment and groundwater, from past mining industries. The extraction of vanadium from alum shale is no different. Nevertheless the metal is a valuable resource used in tools, building, industries and aerospace materials. LÄS MER

  3. 2. Rare-Earth Elements in the Swedish Alum Shale Formation: A Study of Apatites in Fetsjön, Västerbotten

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Fredrik Engström; [2019]
    Nyckelord :apatite; rare-earth elements; uranium; alum shales; caledonides; apatit; sällsynta jordartsmetaller; uran; alunskiffer; kaledoniderna;

    Sammanfattning : The Caledonian alum shales of Sweden host a vast number of economically interesting metals. In Fetsjön, Västerbotten, the shales contain significant amounts of rare-earth elements, vanadium, molybdenum and uranium. LÄS MER

  4. 3. Primary Study of the Phase Relationship in the MgO-"V2O3" System at 1873 K and pO2=10-11 atm

    Kandidat-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Line Larby; Annie Lundberg; [2018]
    Nyckelord :;

    Sammanfattning : Vanadium can be found in some iron ores as an impurity. Since vanadium is a valuable alloy element there lies an interest in development of a stable and economic way for extraction of it. For this, knowledge about the thermodynamics behind the V-O system combined with other elements, like Mg, is indispensable. LÄS MER

  5. 4. Utvärdering av två markbaserade dagvattenreningssystem

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Agnes Forsberg; [2015]
    Nyckelord :Dagvatten; översilningsyta; utjämningsmagasin; markbaserad rening; tungmetaller;

    Sammanfattning : Stormwater is a source of pollution to water bodies but can also cause flooding. To treat stomwater locally is an issue of emerging importance due to a changing climate with an increased frequency of heavy rains, but also as a result of more strict guidelines concerning pollution to water bodies. LÄS MER

  7. 5. The effect of Al2O3, CaO and SiO2 on the phase relations in vanadium containing slags

    Master-uppsats, KTH/Materialvetenskap

    Författare :Martin Berg; [2015]
    Nyckelord :;

    Sammanfattning : Today, the main raw material for vanadium production is vanadium containing steelmaking slags. The yield of the vanadium extraction process is affected by the composition of the slag, which in turn determines the phases present, the fractions of the phases and the distribution of the elements between the phases. LÄS MER