Sökning: "chlor-alkali"

Visar resultat 1 - 5 av 8 avhandlingar innehållade ordet chlor-alkali.

  1. 1. Mathematical modelling and experimental simulation of chlorate and chlor-alkali cells

    Författare :Philip Byrne; KTH; []
    Nyckelord :chlorate; chlor-alkali; current density distribution; current distribution; potential distribution; hydrodynamic behaviour; electrolysis; bubble-evolution;

    Sammanfattning : The production of chlorate, chlorine and sodium hydroxiderelies heavily on electrical energy, so that savings in thisarea are always a pertinent issue. This can be brought aboutthrough increased mass transfer of reacting species to therespective electrodes, and through increased catalytic activityand uniformity of current density distribution at theseelectrodes. LÄS MER

  3. 2. Klorkartellen

    Författare :Patrik Ekheimer; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; PVC; history of technology; bleaching; cartels; institutions; innovation;

    Sammanfattning : The overall aim of this thesis is to describe the history of the Swedish chlor-alkali industry. The chlor-alkali industry produces chlorine and alkali by electrolytic de-composition of ordinary salt solution (brine). This process generates chlorine and sodium hydroxide (caustic soda) in the fixed ratio 1 to 1.13. LÄS MER

  4. 3. Laser spectroscopic analysis of atmospheric gases in scattering media

    Författare :Mikael Sjöholm; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fjärranalys; Remote sensing; Laser spectroscop; Scattering of light; Diode lasers; acoustics; optics; Electromagnetism; optik; akustik; Elektromagnetism; Optical absorption; Nondestructive testing: optical; Interdisciplinary applications of physics; Laser technology; Atom- och molekylärfysik; Atomic and molecular physics; LIDAR remote sensing; Laserteknik;

    Sammanfattning : Laser spectroscopic techniques for gas analysis under various influences of light scattering are explored in a wide spectral range from the ultraviolet to the infrared. The techniques rely on spectrally narrow-band light sources that are used in differential optical absorption measurements. LÄS MER

  5. 4. Electroremediation of contaminated soil

    Författare :Pascal Suèr; Bert Allard; Lisbeth M. Ottosen; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; electrokinetic remediation; contaminated soil; mercury; heavy metals; organic compounds; Chemistry; Kemi; Enviromental Science; Miljövetenskap;

    Sammanfattning : Electroremediation was applied to contaminated soils in order to study the transport of metals and organic compounds by the external electric field. The electric field caused acidic conditions near the anode, so that copper, zinc, lead, nickel, cadmium, calcium and manganese were released from soil from a chlor-alkali site. LÄS MER

  7. 5. Lidar Techniques for Environmental Monitoring

    Författare :Rasmus Grönlund; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Atomic and molecular physics; remote laser-induced breakdown spectroscopy; laser-induced fluorescence; differential absorption lidar; fluorescence lidar; Atom- och molekylärfysik;

    Sammanfattning : Atoms and molecules absorb and emit light at certain, welldefined wavelengths, and this forms the basis of spectroscopy. The wavelengths are given by the discrete energy levels of the atoms/molecules. LÄS MER