Search for dissertations about: "osmotic coefficient"

Showing result 1 - 5 of 10 swedish dissertations containing the words osmotic coefficient.

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

    Author : Marta Anna Bialik; [2008]
    Keywords : 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;

    Abstract : 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. READ MORE

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

    University dissertation from Chemical Engineering, Lund University

    Author : Anders Jaretun; Lunds universitet.; Lund University.; [2000]
    Keywords : 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;

    Abstract : 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. READ MORE

  3. 3. Extraction of Metal Values Thermodynamics of Electrolyte Solutions and Molten Salts Extraction Process

    University dissertation from Stockholm : KTH

    Author : Xinlei Ge; KTH.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrolyte solutions; activity coefficient; osmotic coefficient; freezing point depression; boiling point elevation; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap;

    Abstract : Over the past centuries, a number of process routes for extraction of metal values from an ore or other resources have been developed. These can generally be classifiedinto pyrometallurgical, hydrometallurgical or electrometallurgical routes. READ MORE

  4. 4. Transvascular exchange and organ perfusion with reference to colloid and hypertonic solutions, and to endotoxaemia

    University dissertation from Centrumstigen 4F, 245 62 Hjärup, Sweden

    Author : Staffan Holbeck; Lunds universitet.; Lund University.; [2001]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; sepsis; mannitol; microdialysis; intestine; hypertonic saline; gut; hydroxyethyl starch; gelatin; endotoxin; fluid therapy; dextran; albumin; capillary filtration coefficient; intensivvård; Anestesiologi; urea; Anaesthesiology; intensive care; SIRS; reflection coefficient;

    Abstract : Popular Abstract in Swedish Effekter av olika blodvolymersättningsmedel och blodförgiftning på genomblödning och utbyte över blodkärlen Vid en rad svåra sjukdomar, som blodförgiftning (sepsis) och omfattande skador på kroppen, kan olika inflammatoriska system aktiveras. Inflammation kan vara till nytta, till exempel när infektioner bekämpas och sår läker, men också till skada. READ MORE

  5. 5. Characterization of the Mechanisms of Drug Release from Polymer-Coated Formulations using Experiments and Modelling

    University dissertation from Chemical Engineering, Lund University

    Author : Mariagrazia Marucci; Lunds universitet.; Lund University.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ethyl cellulose; Release mechanism; coating; polymer blend; modelling; ESPI; diffusion; osmotic pumping; SEM; single pellet; CLSM; hydroxypropyl cellulose; multiple-unit release;

    Abstract : The main objectives of the work presented in this thesis were to develop new experimental methods to improve the understanding of the release mechanism from a coated formulation and to develop new mechanistic models to describe the release process for pellets coated with a semi-permeable film. Another aim was to characterize the release mechanism from a formulation coated with films made of a blend of a water-insoluble polymer, ethyl cellulose (EC), and a water-soluble polymer, hydroxypropyl cellulose (HPC). READ MORE