Search for dissertations about: "ZnS"

Showing result 1 - 5 of 30 swedish dissertations containing the word ZnS.

  2. 1. Spectroscopic studies of colloidal ZnS

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

    Abstract : This thesis is a summary and discussion of four papers, mainly dealing with reactions at the ZnS/water interface. The main analysis method has been spectroscopy. In mineral concentration plants valuable minerals are rendered hydrophobic by the action of certain surface active molecules, so called collectors. READ MORE

  4. 2. Orientation of collectors adsorbed at the ZnS/solution interface

    Author : Margareta Lidström-Larsson; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry of Interfaces; Gränsytors kemi;

    Abstract : The separation and concentration of minerals by flotation is a well-known industrial process. In this process collectors are used to increase the hydrophobicity of the surfaces of the minerals. READ MORE

  5. 3. Ab initio modeling of xanthate adsorption on ZnS surfaces

    Author : Pär Hellström; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Scientific Computing; Teknisk-vetenskapliga beräkningar;

    Abstract : Modeling surface adsorption requires systems of hundreds of atoms. To model such systems at an ab initio level successfully, we need to avoid traditional quantum chemical methods. READ MORE

  6. 4. FT-IR and FT-Raman studies of colloidal ZnS

    Author : Rune Gärd; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physical Chemistry; Fysikalisk kemi;

    Abstract : .... READ MORE

  7. 5. Sulphide mineral collectors adsorbed on a ZnS internal reflection element : an infrared linear dichroism study

    Author : Margareta Lidström-Larsson; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physical Chemistry; Fysikalisk kemi;

    Abstract : Separation and concentration of minerals by flotation is a well-known industrial process. In this process collector chemicals are used to modify the mineral surface to increase the hydrophobicity of the mineral particles. READ MORE