Sökning: "solubility coefficient"

Visar resultat 1 - 5 av 17 avhandlingar innehållade orden solubility coefficient.

  1. 1. Solid-liquid Phase Equilibria and Crystallization of Disubstituted Benzene Derivatives

    Detta är en avhandling från Stockholm : KTH

    Författare :Fredrik Nordström; KTH.; [2008]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Salicylic acid; m-hydroxybenzoic acid; p-hydroxybenzoic acid; salicylamide; m-aminobenzoic acid; p-aminobenzoic acid; solubility; solid-liquid equilibria; thermodynamics; activity of the solid phase; ideal solubility; activity coefficient; van t Hoff enthalpy of solution; solid state; solution properties; metastable zone width; primary nucleation; nucleation kinetics; TECHNOLOGY Chemical engineering; TEKNIKVETENSKAP Kemiteknik;

    Sammanfattning : The Ph.D. project compiled in this thesis has focused on the role of the solvent in solid-liquid phase equilibria and in nucleation kinetics. Six organic substances have been selected as model compounds, viz. LÄS MER

  2. 2. Thermodynamic modelling of black liquor-related solutions. Pitzer method for estimating activities, solubilities and boiling point rise

    Detta är en avhandling från Stockholm : KTH

    Författare :Marta Anna Bialik; [2008]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; activity coefficient; black liquor; boiling point rise elevation ; osmotic coefficient; solubility; Pitzer method; sodium sulphate dicarbonate; burkeite;

    Sammanfattning : Black liquor is considered as being one of the most important process streams as far as the design and optimization of kraft pulp mills are concerned. Many methods have been developed in order to describe and, possibly, predict its physico-chemical properties. Most of them are, however, empirical methods that are difficult to generalize. LÄS MER

  3. 3. Thermodynamic Modelling of Electrolyte Solutions with Application to the Pulp and Paper Industry

    Detta är en avhandling från Chemical Engineering, Lund University

    Författare :Anders Jaretun; Lunds universitet.; Lund University.; [2000]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Potassium; Chloride; Chemical recovery; Leaching; Crystallization; Kraft pulping; Non-process elements; Solubility; Local composition; Excess properties; Osmotic coefficient; Electrolytes; Activity coefficient; Wood; pulp and paper technology; Pappers- och massateknik;

    Sammanfattning : Popular Abstract in Swedish Elektrolyter är ämnen som sönderdelas i ett lösningsmedel och därvid ger upphov till positivt och negativt laddade joner. De starka elektrostatiska krafter i lösningen som detta i sin tur orsakar är typiska för elektrolytlösningar. LÄS MER

  4. 4. Computational Analysis of Aqueous Drug Solubility – Influence of the Solid State

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Carola Wassvik; Uppsala universitet.; [2006]
    Nyckelord :Pharmaceutics; intrinsic solubility; solubility prediction; drug solubility; solid state; melting point; enthalpy of melting; entropy of melting; solvation; free energy of hydration; QSPR; multivariate analysis; PCA; PLS; Galenisk farmaci;

    Sammanfattning : Aqueous solubility is a key parameter influencing the bioavailability of drugs and drug candidates. In this thesis computational models for the prediction of aqueous drug solubility were explored. LÄS MER

  5. 5. Model for activity coefficients and solubilities of Na2CO3 and Na2SO4 in high-temperature solutions

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Marta Anna Bialik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; scaling; Pitzer model; activity coefficient; solubility; sodium carbonate; sodium sulfate; boiling point raise; double salt; solid solution; burkeite;

    Sammanfattning : Scaling of sodium sulfate and sodium carbonate double salts has long been recognized as a problem in the black liquor evaporation process. These salts are abundant in black liquor and often tend to precipitate on heat transfer areas, thereby significantly decreasing the heat transfer efficiency. LÄS MER