Sökning: "anti‐solvents"

Hittade 2 avhandlingar innehållade ordet anti‐solvents.

1. 1. Selective Separation Of Wood Components In Internal Process Waters Originating From Mechanical Pulping

   Författare :Dariusz Zasadowski; Magnus Norgren; Bjarne Holmbom; Mittuniversitetet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; flotation; foaming agents; chelating surfactant; TMP process water; pitch control; internal cleaning stage; hemicellulose recovery; anti‐solvents; solvents; precipitation;

   Sammanfattning : Dissolved and Colloidal substances (DSC) and metals are released from woodduring thermomechanical pulp (TMP) production. These components have atendency to accumulate in process waters, as the water circulation systems inintegrated paper mills are closed. LÄS MER

3. 2. Galactoglucomannan recovery from softwood spent sulfite liquor: Challenges, process design and techno-economic evaluations

   Författare :Basel Al-Rudainy; Avdelningen för kemiteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Galactoglucomannan; Lignin; Lignosulfonates; Lignin-carbohydrate-complexes; Membrane filtration; Dead-end filtration; Precipitation; Adsorption;

   Sammanfattning : In the production of pulp and paper, water-soluble components, such as hemicellulose, monosaccharides, and lignin, are released and accumulate in the process water. The process water is usually concentrated and incinerated for heat generation and the recovery of pulping chemicals, such as in the Kraft and sulfite processes. LÄS MER