Sökning: "Ion exchange"

Visar resultat 21 - 25 av 223 avhandlingar innehållade orden Ion exchange.

  1. 21. Narrow-pore zeolites and zeolite-like adsorbents for CO2 separation

    Författare :Ocean Cheung; Niklas Hedin; Paul A. Wright; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; CO2 separation; zeolites; phosphates; titanium silicates; ion exchange; flue gas CO2 capture; biogas upgrading; Materials Chemistry; materialkemi;

    Sammanfattning : A range of porous solid adsorbents were synthesised and their ability to separate and capture carbon dioxide (CO2) from gas mixtures was examined. CO2 separation from flue gas – a type of exhaust gas from fossil fuel combustion that consists of CO2 mixed with mainly nitrogen and biogas (consists of CO2 mixed with mainly methane) were explicitly considered. LÄS MER

  3. 22. Synthesis and applications of low silica zeolites from Bolivian clay and diatomaceous earth

    Författare :Javier Gustavo Garcia Mendoza; Johanne Mouzon; Niklas Hedin; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Zeolites; Synthesis; clay; diatomite; adsorption; ion exchange; Chemical Technology; Kemisk teknologi;

    Sammanfattning : The aim of the present work was to develop synthesis routes to produce synthetic zeolites with industrial attractiveness from non-expensive Bolivian raw materials, such as clays and diatomite. In particular, the work was focused on the synthesis of low-silica zeolites with the LTA and FAU structures. LÄS MER

  4. 23. On the sorption and diffusion of radionuclides in bentonite clay

    Författare :Mireia Molera Marimon; KTH; []
    Nyckelord :Bentonite; cations; anions; sodium; cesium; strontium; cobalt; chloride; iodide; sorption; diffusion; cation exchange; surface complexation; ion exclusion; montmorillonite; swelling; interlayer water; interparticle water.;

    Sammanfattning : .... LÄS MER

  5. 24. Interaction between Crosslinked Polyelectrolyte Gels and Oppositely Charged Surfactants

    Författare :Peter Nilsson; Per Hansson; Ksenija Kogej; Uppsala universitet; []
    Nyckelord :Pharmaceutical chemistry; gel; polyelectrolyte; surfactant; deswelling; kinetics; phase separation; volume transition; ion-exchange; diffusion; liquid crystal; SAXS; cubic Pm3n; Farmaceutisk kemi;

    Sammanfattning : The interactions between anionic, crosslinked gels and cationic surfactants have been investigated. When exposed to oppositely charged surfactant, the gel collapses into a dense complex of polyion and micelles. LÄS MER

  7. 25. Tools for digital twins in continuous downstream processing

    Författare :Simon Tallvod; Avdelningen för kemiteknik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Digital twins; Biopharmaceuticals; Downstream processing; Chromatography; Mathematical modeling; Ion exchange; Automation; Sampling; Model calibration; Python;

    Sammanfattning : Biopharmaceuticals are of ever-growing importance for human health. The development and production of biopharmaceuticals has the potential for efficiency improvements by switching from batch-wise to continuous production. LÄS MER