Sökning: "Fe3O4"

Visar resultat 1 - 5 av 13 uppsatser innehållade ordet Fe3O4.

  1. 1. Electrolytic Reduction of Iron Oxides in Molten Salt with a Mineralogical Investigation of Magnetite Ore of Tapuli

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Elina Fernö; [2023]
    Nyckelord :Iron reduction; trace element analysis on magnetite ore; molten salt electrolysis; sodium hydroxide electrolyte; NaOH; greenhouse gas; carbon dioxide; CO2; green ironmaking; Järnreduktion; spårelementanalys på magnetitmalm; smältelektrolys; elektrolys i natriumhydroxid; NaOH; elektrolyt; växthusgas; koldioxid; CO2; grön järnframställning;

    Sammanfattning : This master's thesis covers an investigation of the reduction behavior of different iron oxides when electrolytically reduced with molten salt electrolysis (MSE). The tested iron oxides were wüstite (FeO), hematite (Fe2O3), magnetite (Fe3O4) and magnetite ore concentrate from the Tapuli deposit in Pajala, Norrbotten, Sweden. LÄS MER

  3. 2. Improving Availability of the Pelletization Process

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

    Författare :Emil Andreasson; Pontus Åhman; [2022]
    Nyckelord :Availability; Predictive Maintenance; Pelletization; Statistical Process Control; Refractory Material; DMAIC;

    Sammanfattning : The Grate-Kiln-Cooler process is a commonly used method of sintering during iron ore pelletization, where the pellets are formed, dried, and hardened. The pellets are oxidized in the rotating Kiln, turning magnetite (Fe3O4) to hematite (Fe2O3), making the pellets attain suitable metallurgical attributes for further processing. LÄS MER

  4. 3. Characterization of Iron Oxide Nanoparticle-Based Contrast Agent in Photoacoustic Imaging and Magnetic Resonance Imaging

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Jimmy Zheng; [2021]
    Nyckelord :Photoacoustic imaging; magnetic resonance imaging; iron oxide nanoparticle; multimodal contrast agent;

    Sammanfattning : Pancreatic ductal adenocarcinoma (PDAC) is one of the most difficult type of cancer to treat, due to late diagnosis which is a result of vague symptoms and lack of biomarkers, as well as refractory behavior toward current treatment protocols. Imaging of the disease progression therefore plays a crucial role in identifying potentially curable PDAC patients at an early stage. LÄS MER

  5. 4. MAGNETIC CHARACTERIZATION OF SELF-ASSEMBLED ONE-DIMENSIONAL NETWORKS OF MAGNETIC NANOPARTICLES

    Kandidat-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Mario Salvador López Muñoz; [2019]
    Nyckelord :Nanomagnetism; Stoner-Wohlfarth; Magnetite Fe3O4; nanoparticles; Magnetic Characterization; Spark Discharge Technique; Physics and Astronomy;

    Sammanfattning : In this thesis, a magnetic study of two dierent arrangements of Fe3O4 nanoparticles is presented. The nanoparticles are generated using an aerosol technique and guided onto a substrate. LÄS MER

  7. 5. Characterization of core-shell oxide nanoparticles

    Kandidat-uppsats, SLU/Department of Molecular Sciences

    Författare :Eline Goossens; [2018]
    Nyckelord :magnetic core-shell nanoparticles; characterization; iron oxide; silica;

    Sammanfattning : The growing amount of applications of nanoparticles (NP) have led to concern for their possible harmful effect on human health and the leakage in the environment. Characterization and quantification of the content of NPs are of prime importance, especially methods to relate size, composition and morphology of the particles with the possibility of their detection and quantification. LÄS MER