Search for dissertations about: "reduction iron ore"

Showing result 1 - 5 of 33 swedish dissertations containing the words reduction iron ore.

  1. 1. Characterisation of Muko iron ores (Uganda( for defferent routes of iron production

    Author : Abraham Judah Bumalirivu Muwanguzi; Andrey V Karasev; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; iron ore; iron; characterization; physical and metallurgical properties; sinter; pellet; blast furnace; direct reduction; Muko; Uganda; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap; SRA - Production; SRA - Produktion;

    Abstract : Iron and its products, especially the various forms of steel, have been and still are a vital material in many sectors of life. It is utilized in many industrial activities ranging from production of heavy duty mechanical equipment to light electrical appliances and home appliances. With the world‟s iron ore consumption estimated to stand at 1. READ MORE

  2. 2. Fundamental Studies Related to Gaseous Reduction of Iron Oxide

    University dissertation from Stockholm : Kungliga Tekniska högskolan

    Author : Mania Kazemi; Du Sichen; Ioannis Arvanitidis; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Direct reduction; iron ore; cementite; reduction model;

    Abstract : The demands for increasing the efficiency and lowering the environmental effects in iron and steelmaking industries have given rise to interests in application of direct reduction (DR) processes for production of iron by different gases. These advancements require comprehensive models for better control of the process conditions and the product properties. READ MORE

  3. 3. Mineral Reactions and Slag Formation During Reduction of Olivine Blast Furnace Pellets

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Elin Ryösä; Hans Annersten; Kyösti Heinänen; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; olivine; iron ore pellets; blast furnace; reduction; alkali; coating; slag formation; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap;

    Abstract : The present work focuses on mineral reactions and slag formation of LKAB olivine iron ore pellets (MPBO) subjected to reducing conditions in the LKAB experimental blast furnace (EBF). The emphasis is on olivine reactions with surrounding iron oxides. Many factors influence the olivine behaviour. READ MORE

  4. 4. A study of micro-particles in the dust and melt at different stages of iron and steelmaking

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Muhammad Nabeel; Andrey Karasev; Lauri Holappa; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Particle size distribution; ironmaking; iron ore pellets; dust generation; mechanical wear; friction; reduction; REM clusters; Electrolytic extraction; cluster size distribution; growth mechanism; collisions; statistical analysis.; Materials Science and Engineering; Teknisk materialvetenskap; Metallurgical process science; Metallurgisk processvetenskap;

    Abstract : The dust particles generated due to mechanical wear of iron ore pellets and clusters formed in molten stainless steel alloyed with rare earth metals (REM) are considered in this study. Firstly, the influence of the characteristics of iron ore pellets, applied load on a pellet bed and partial reduction of the pellets on the size distribution of the generated dust was investigated. READ MORE

  5. 5. Competitive strength in iron ore production

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Stefan Hellmer; [1997]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Nationalekonomi;

    Abstract : This thesis is about competitive strength in the global markets for iron ore. Its focus is on the Swedish iron ore producer, LKAB, and its role in this global market. The finding of new vast deposits of iron ore in Brazil and Australia, together with falling transportation costs, meant that LKAB started to meet fierce competition in the 1970s. READ MORE