Sökning: "Pulp washing"
Visar resultat 6 - 10 av 23 avhandlingar innehållade orden Pulp washing.
6. Inverkan av hög temperatur vid tvättning av kemisk massa
Sammanfattning : .... LÄS MER
7. Precipitation of Kraft Lignin under Alkaline Conditions
Sammanfattning : .... LÄS MER
8. Storage of Hydrogen Peroxide Bleached Mechanical Pulp : Reduction in Reflectance over the Visible Spectrum
Sammanfattning : The objective of this thesis is to determine possible causes of the darkening of hydrogen peroxide bleached mechanical pulp over the visible spectrum and their relative contributions. It focuses on both process conditions and the composition of the pulp and the dilution water, including additions or losses of material along the process line from the bleach tower to the paper machine. LÄS MER
9. Some aspects of adsorption in displacement washing of pulp
Sammanfattning : AbstractThere are many aspects on how to improve the paper pulping process. In the washing sequence improvements to decrease the discharge to the environment can be achieved by closure of the liquid system and recycling liquid from other parts pulp process. LÄS MER
10. Precipitation and separation of lignin from kraft black liquor
Sammanfattning : The separation of lignin from black liquor is an attractive option to consider for pulp mills. In modern pulp mills, lignin extraction offers the opportunity of withdrawing an energy surplus in the form of a solid biofuel. LÄS MER