Search for dissertations about: "dissolution"

Showing result 11 - 15 of 464 swedish dissertations containing the word dissolution.

  2. 11. Cellulose in Quaternary Ammonium-based Solvents: Dissolution, Modification and Coagulation

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

    Abstract : 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. READ MORE

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

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

    Abstract : 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. READ MORE

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

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

    Abstract : 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. READ MORE

  6. 14. Effects of HCO3- and ionic strength on the oxidation and dissolution of UO2

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

    Abstract : 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. READ MORE

  7. 15. Dissolution of Polydisperse Polymers in Water

    Author : Anna Körner; Fysikalisk kemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fysikalisk kemi; Physical chemistry; PEO; swelling; polymer dissolution; polydispersity;

    Abstract : The different steps in the dissolution process of polydisperse polymers in water have been studied. To that end, poly(ethylene oxide), dextran and hydroxypropyl methylcellulose tablets varying widely in polydispersity have been produced by mixing low molecular weight and high molecular weight samples in different proportions. READ MORE