Sökning: "solvent extraction"

Visar resultat 21 - 25 av 129 avhandlingar innehållade orden solvent extraction.

  1. 21. Optimisation Challenges in Pressurised Hot Water Extraction of Polyphenols: Extraction and Degradation Kinetics

    Författare :Jiayin Liu; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Extraction kinetics; degradation kinetics; pressurised hot water extraction; optimisation; and anthocyanins; flavonoids; and polyphenols;

    Sammanfattning : Pressurised hot water is an environmentally friendly alternative to hazardous organic solvents such as methanol and heptane. One of the many applications of using pressurised hot water extraction (PHWE) is to extract polyphenols from plants. The challenges in PHWE lies with the optimisation of extraction yield. LÄS MER

  3. 22. On a Solvent Extraction System for Recycling Used Nuclear Fuel with CyMe4-BTBP and TBP as Extracting Agents

    Författare :Jenny Halleröd; Chalmers tekniska högskola; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solvent Extraction; CyMe4-BTBP; FS-13; GANEX; TBP;

    Sammanfattning : In Sweden, as well as in many other countries worldwide, the demand for electricity and electrical energy is high. One solution to satisfy this demand in the long term could be to upgrade the nuclear power plants, including recycling of used nuclear fuel, to Generation IV. LÄS MER

  4. 23. Phenyl Trifluoromethyl Sulfone as Diluent in a Grouped ActiNide EXtraction Process

    Författare :Jenny Halleröd; Chalmers tekniska högskola; []
    Nyckelord :Solvent Extraction; FS-13; CyMe4-BTBP and TBP; GANEX;

    Sammanfattning : The demand for electricity and electrical energy is very high both in Sweden and in the other industrialised countries in the world. An upgrade of the nuclear power plants, including recycling of the used nuclear fuel, would make nuclear power a sustainable energy option. Over the years different types of nuclear reactors have been developed. LÄS MER

  5. 24. Studies of extraction and separation of Am(III) and Eu(III) using synergistic extraction with nitrogen coordinating ligands and 2-bromodecanoic acid

    Författare :Åsa Enarsson; Chalmers tekniska högskola; []
    Nyckelord :transmutation; oligopyridines; Am; lathanide; solvent extraction; basicity; actinide; separation; synergism; triazines; Eu;

    Sammanfattning : .... LÄS MER

  7. 25. Extraction and chromatography of bioactive compounds in complex samples using supercritical CO2 technology

    Författare :Said Alhamimi; Centrum för analys och syntes; []
    Nyckelord :Supercritical CO2; Chromatography; Extraction; Mass transfer; Solubility;

    Sammanfattning : Bioactive compounds found in plants have been of interest to man since ancient times. These compounds have the ability to modulate the metabolic processes in our bodies, which suggests that they may promote better health. Bioactive compounds vary in their chemical structure, polarity, stability and biological activity. LÄS MER