Sökning: "calcination"

Visar resultat 1 - 5 av 40 avhandlingar innehållade ordet calcination.

  1. 1. Thermochemical processing of nanostructured W-Co and WC-Co powders

    Författare :Zongyin Zhang; KTH; []
    Nyckelord :Nanostructured powder; WC-Co; W-Co; Co-precipitation; Chemical precursor; Calcination; Phase constitute; Processing; Calcination; Reduction; Carburization;

    Sammanfattning : .... LÄS MER

  3. 2. Zeolite macrostructures

    Författare :Lubomira Tosheva; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Technology; Kemisk teknologi;

    Sammanfattning : The preparation of zeolite macrostructures in the form of bilayered hollow tubes and microspheres is presented. The bilayered hollow ZSM-5/silicalite-1 tubes were prepared using carbon fibers as a substrate. The surface of the fibers was modified and colloidal silicalite-1 seed crystals adsorbed. LÄS MER

  4. 3. Molecular sieve films and zoned materials

    Författare :Zheng Wang; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Technology; Kemisk teknologi;

    Sammanfattning : Molecular sieve films and colloidal particles may have great potential for further utilization in novel technological sophisticated applications such as structured catalysts, sensors and membranes. The work presented in this thesis concerns the synthesis molecular sieve films and the crystallization of zoned MFI materials for novel catalyst and sensor applications. LÄS MER

  5. 4. Properties of molecular sieve membranes

    Författare :Charlotte Andersson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Technology; Kemisk teknologi;

    Sammanfattning : Zeolites are crystalline aluminosilicates with molecular sieving properties and are widely used in industry for catalysis, sorption and ion-exchange applications. Zeolite membranes are commercially interesting since this technology may be employed for continuous separation of molecules under severe conditions. LÄS MER

  7. 5. Molecular sieve macrostructures prepared by resin templating

    Författare :Lubomira Tosheva; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Technology; Kemisk teknologi;

    Sammanfattning : A novel template-based method for the preparation of molecular sieve macrostructures was developed. Silicalite-1, ZSM-5 and zeolite beta spheres were prepared by the method. The procedure was also used to produce amorphous silica macrostructures. Anion exchange resin beads were employed as macrotemplates to host the guest silica materials. LÄS MER