Sökning: "Patrik Fredriksson"

Hittade 3 avhandlingar innehållade orden Patrik Fredriksson.

  1. 1. Thermodynamic studies of some iron oxide-containing slag systems

    Författare :Patrik Fredriksson; KTH; []
    Nyckelord :;

    Sammanfattning : In the present investigation experimental measurements ofthe thermodynamic activities of iron oxide in the systems:Al2O3-“FeO”, CaO-“FeO”,“FeO”-SiO2 and, CaO-“FeO”-SiO2 wereperformed by using gas equilibration technique. Theexperimental measurements were performed in the temperaturerange 1823-1923 K for the binary systems and, at 1873 K for theternary system respectively. LÄS MER

  3. 2. Thermodynamic Studies of the Fe-Pt System and “FeO”-Containing Slags for Application Towards Ladle Refining

    Författare :Patrik Fredriksson; KTH; []
    Nyckelord :Thermodynamics; Activity; Galvanic cell; Calorimetry; Gas equilibration technique; Iron-platinum alloys; FeO; Slags; Modelling; Ladle;

    Sammanfattning : In the present work, the thermodynamic activites of ironoxide, denoted as "FeO" in the slag systems Al2O3-"FeO", CaO-"FeO", "FeO"-SiO2, Al2O3-"FeO"-SiO2, CaO-"FeO"-SiO2and "FeO"-MgO-SiO2were investigated by employing the gasequilibration technique at steelmaking temperatures. Thestrategy was to expose the molten slag mixtures kept inplatinum crucibles for an oxygen potential, determined by aCO/CO2-ratio. LÄS MER

  4. 3. Efficient algorithms for highly automated evaluation of liquid chromatography - mass spectrometry data

    Författare :Mattias Fredriksson; Dan Bylund; Patrik Petersson; Bengt-Olof Axelsson; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Digital filtering; Liquid chromatography; Mass spectrometry; Method; Chemistry; Kemi;

    Sammanfattning : Liquid chromatography coupled to mass spectrometry (LC‐MS) has due to its superiorresolving capabilities become one of the most common analytical instruments fordetermining the constituents in an unknown sample. Each type of sample requires a specificset‐up of the instrument parameters, a procedure referred to as method development. LÄS MER