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Träfflista för sökning "WFRF:(BERGLUND P) srt2:(1980-1984)"

Sökning: WFRF:(BERGLUND P) > (1980-1984)

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  • Hartel, R.W., et al. (författare)
  • Crystallization kinetics for the sucrose-water system
  • 1980
  • Ingår i: Design, control and analysis of crystallization processes. - : American Institute of Chemical Engineers. ; , s. 65-72
  • Konferensbidrag (refereegranskat)abstract
    • Crystallization kinetics for the sucrose-water system were studied in a continuous MSMPR cooling crystallizer. Growth and nucleation rates were derived from the measured size distributions using the population balance equation. In the region of higher supersaturation, where secondary nucleation occurs, it appeared that growth was a linear function of supersaturation; whereas, nucleation was approximately 1. 5 order in supersaturation. Growth rates were lower for crystals smaller than about 60 mu m, although these too increased with supersaturation. The latter trends were observed in both the higher (nucleating) and lower (non-nucleating) supersaturation regions. Preliminary batch studies indicated that the rate of secondary nucleation was also a function of both the method of contact and the impact energy.
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4.
  • McMahon, P.M., et al. (författare)
  • Raman spectroscopic studies of the structure of supersaturated KNO//3 solutions
  • 1984
  • Ingår i: Industrial Crystallization 84. - Amsterdam : Elsevier. - 0444424067 ; , s. 229-232
  • Konferensbidrag (refereegranskat)abstract
    • Laser Raman spectroscopy was used to study the nu //1 (A//1) band of aqueous potassium nitrate solution. The purpose was to establish the relationship between solution structure, nucleation and growth. Two bands were determined that exist at 1049 cm** minus **1 (the free nitrate ion) and 1050. 5 cm** minus **1 (a more ordered species). The band at 1050. 5 cm** minus **1 increased in magnitude as concentration was increased into the supersaturation region. Solutions containing 200 ppm Cr**3** plus were also studied and this impurity was found to suppress the formation of the species at 1050. 5 cm** minus **1.
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