• Energy Distribution in HC FeMn and SiMn - Energy vs Exergy Analyses 

      Larssen, Trine Asklund; Kero, Ida; Tangstad, Merete (Peer reviewed; Journal article, 2019)
      The metal producing industry is a high consumer of energy and large amounts of excess heat are produced. Increasing the energy efficiency would be beneficial, both in terms of the environment and also from an economical ...
    • Gaseous reduction of Mn ores in CO-CO2 atmosphere 

      Larssen, Trine Asklund; Tangstad, Merete; Kero, Ida (Chapter, 2018)
      The efficiency in production of manganese ferroalloys is dependent on the gaseous reduction of the higher manganese oxides in the ores used as raw materials. The materials, descending in the furnace, will meet the furnace ...
    • Prereduction of Comilog- and Nchwaning ore 

      Larssen, Trine Asklund (Doctoral theses at NTNU;2020:415, Doctoral thesis, 2020)
      Manganese ferroalloys are mainly used as an alloying element in steel production and are normally produced in submerged arc furnaces. Raw materials such as manganese ore, metallurgical coke and fluxes (and quartz for SiMn) ...
    • Reduction of MnO and SiO2 from Assmang and Comilog based Slags 

      Larssen, Trine Asklund (Master thesis, 2017)
      Silicomanganese(SiMn) and ferromanganese (FeMn) represent essential ingredients for the steel producing industries due to enhancing effects on steel quality. While extensive efforts have been made in investigating the ...
    • Reduction rates of MnO and SiO2 in SiMn slags between 1500 and 1650°C 

      Kim, Pyunghwa; Larssen, Trine Asklund; Tangstad, Merete (Journal article; Peer reviewed, 2019)
      The kinetics of MnO and SiO2 reduction in SiMn slags based on Assmang/Comilog ore and HCFeMn (high-carbon ferromanganese) slag were investigated between 1500 and 1650°C under a CO atmosphere. The results showed that charges ...