Sökning: "dissolution"

Visar resultat 11 - 15 av 491 avhandlingar innehållade ordet dissolution.

  1. 11. Effects of radiolysis on the dynamics of UO2-dissolution

    Författare :Ella Ekeroth; KTH; []
    Nyckelord :UO2; spent nuclear fuel; radiolysis; H2O2; H2; oxidation; dissolution; reduction; rate constants; modeling;

    Sammanfattning : .... LÄS MER

  3. 12. Cellulose in Quaternary Ammonium-based Solvents: Dissolution, Modification and Coagulation

    Författare :Shirin Naserifar; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; gelation; etherification; quaternary ammonium hydroxides; cellulose; dissolution;

    Sammanfattning : Processing cellulose through dissolution and regeneration is essential for many applications, yet challenges are posed because it does not readily melt or dissolve in commonly used aqueous and organic solvents. Consequently, extensive efforts have been devoted to developing novel and efficient solvents for cellulose, as well as exploring new functionalization routes. LÄS MER

  4. 13. Study on the dissolution of lime and dolomite in converter slag

    Författare :Tengfei Deng; Sichen Du; Takeshi Yoshikawa; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dissolution; lime; limestone; dolomite; converter slag;

    Sammanfattning : In the present study, the dissolution mechanism and rate of lime, limestone and dolomite in converter slag was studied. Lime dissolution in stagnant slag was studied first and dissolution of lime, limestone and dolomite under forced convection were carried out by new experimental setup. LÄS MER

  5. 14. Physical and Chemical Aspects of Radiation Induced Oxidative Dissolution of UO2

    Författare :Olivia Roth; Mats Jonsson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; UO2; spent nuclear fuel; dissolution; oxidation; radiolysis; irradiation; particle size; modeling; Chemistry; Kemi;

    Sammanfattning : Denna licensiatavhandling behandlar oxidativ upplösning av UO2. Upplösning av UO2 studeras huvudsakligen då UO2-matrisen hos använt kärnbränsle förväntas fungera som en barriär mot frigörande av radionuklider i ett framtida djupförvar. LÄS MER

  7. 15. Effects of HCO3- and ionic strength on the oxidation and dissolution of UO2

    Författare :Mohammad Moshin Hossain; Mats Jonsson; Olle Wahlberg; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; UO2; H2O2; spent nuclear fuel; HCO3-; ionic strength; oxidation; dissolution; surface site density.; Chemistry; Kemi;

    Sammanfattning : The kinetics for radiation induced dissolution of spent nuclear fuel is a key issue in the safety assessment of a future deep repository. Spent nuclear fuel mainly consists of UO2 and therefore the release of radionuclides (fission products and actinides) is assumed to be governed by the oxidation and subsequent dissolution of the UO2 matrix. LÄS MER