Search for dissertations about: "sphalerite"

Showing result 1 - 5 of 23 swedish dissertations containing the word sphalerite.

  1. 1. The Stollberg ore field - petrography, lithogeochemistry, mineral chemistry, and ore formation

    Author : Magnus Ripa; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; metamorphic; exhalative; hydrothermal; volcanogenic; skarn; magnetite; galena; sphalerite; Sweden; Bergslagen; Paleoproterozoic; deposit; mineralogy; geochemistry; Petrology; Petrologi; mineralogi; geokemi;

    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

  2. 2. Flotation chemistry of complex sulphide ores : recycling of process water and flotation selectivity

    Author : Fatai Kolawole Ikumapayi; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mineralteknik; Mineral Processing;

    Abstract : Recycling of flotation effluents through the ore processing plant is one of the ways of reducing both plant-operating costs and industrial impact onto the local ecosystem. Such waters named acid mine drainage (AMD), if discharged from sulphide flotation are gypsum (CaSO4.H2O) saturated and have a high salinity (on the order of 1000 ppm). READ MORE

  3. 3. A spectroscopic study of mechanically activated sulphide minerals

    Author : Benoit Drouet; Luleå tekniska universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Chemistry of Interfaces; Gränsytors kemi;

    Abstract : Sulphide minerals are a major source of non-ferrous metals such as lead, zinc or copper. Ores are processed to be selectively separated which can be achieved by flotation. READ MORE

  4. 4. Recycling process water in complex sulphide ore flotation

    Author : Fatai Kolawole Ikumapayi; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mineralteknik; Mineral Processing;

    Abstract : An approach to environmental sustainability and improved process economy in sulphide minerals production is recycling of process water in flotation of complex sulphide ores. However process water chemistry may be a critical issue to flotation efficiency. Process water discharged from sulphide flotation circuits are usually gypsum (CaSO4. READ MORE

  5. 5. Pulp chemistry of sulphide froth flotation

    Author : Bertil Pålsson; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mineral Processing; Mineralteknik;

    Abstract : The pulp chemistry of chalcopyrite, galena and sphalerite is analyzed theoretically, with computer-aided modelling, and practically with ion chromatography. Ion chromatography is used for analyzing the inorganic and organic anion chemistry of sulphide flotation. READ MORE