Search for dissertations about: "reduction iron ore"

Showing result 1 - 5 of 36 swedish dissertations containing the words reduction iron ore.

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

    University dissertation from Stockholm : E-Print

    Author : Abraham Judah Bumalirivu Muwanguzi; KTH.; [2010]
    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; KTH.; [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. Investigating the parameters that influence the behaviour of natural iron ores during the iron production process

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Abraham Judah Bumalirivu Muwanguzi; KTH.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; natural iron ore; iron production; characterization; physical and metallurgical properties; sinter; pellet; direct reduction; low temperature degradation; sample weight; sample positioning; microstructure; reduction degree; solid conversion; Volumetric Model; Grain Model; Random Pore Model; Muko; Uganda;

    Abstract : In the iron production processes, sinters and pellets are mostly used as raw materials due to their consistency with respect to physical and chemical properties. However, natural iron ores, as mined, are rarely used directly as a feed material for iron processing. READ MORE

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

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Elin Ryösä; Uppsala universitet.; [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

  5. 5. 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; KTH.; [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