Search for dissertations about: "magnetite"
Showing result 1 - 5 of 92 swedish dissertations containing the word magnetite.
-
1. Interaction of magnetite with soluble silicates and bentonite : implications for wet agglomeration of magnetite concentrate
Abstract : Iron ore green pellets are produced by agglomeration of moist magnetite concentrates. The quality of green pellets is essential for the transportability and metallurgical benefits of the final product. READ MORE
-
2. Dephosphorization of magnetite fines : surface reactions, flotation kinetics and fuzzy logic application
Abstract : The primary objective of the research work presented in this thesis is to investigate the influence of chemical and operational variables on the apatite flotation kinetics and to establish a suitable model using traditional method and fuzzy logic. The thesis consists of three parts, i.e. READ MORE
-
3. The Stollberg ore field - petrography, lithogeochemistry, mineral chemistry, and ore formation
Abstract : The Paleoproterozoic Fe-Pb-Zn-Mn(-Ag) Stollberg deposit is situated in the Bergslagen region of south-central Sweden. 6.65 Mt of sphalerite, galena and manganiferous skarn magnetite ore occur as disseminations and semi-massive to massive ore bodies hosted by volcanogenic sediments and carbonate rocks. READ MORE
-
4. Surface Chemistry of Components on Aqueous Metal Working Fluids
Abstract : The aim of the work presented in this thesis is to contribute to an increased knowledge regarding the basic surface chemistry of water based metal working fluids, in particular the relation between aggregational behaviour in solution and the formation of technical important adsorption layers of e.g. READ MORE
-
5. Nanomagnetic and Micromagnetic Properties of Rocks Minerals and Sulphide Oxidation Products
Abstract : Magnetic and related properties of rocks and products from oxidation of sulphide minerals have been investigated with magnetisation measurements (rocks and oxidation products), magnetic force microscopy (rocks), scanning electron microscopy (rocks and oxidation products), transmission electron microscopy (oxidation products), Mössbauer spectroscopy (oxidation products) and powder X-ray diffraction (oxidation products). The investigations have shown the following: During thermal oxidation of pyrite (cubic FeS2) and marcasite (orthorombic FeS2) in air, nano-crystals of a-Fe2O3 and g-Fe2O3 were formed. READ MORE
