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Effect of crystal orientation on freeze concentration of solutions.

Author(s) : OKAWA S., ITO T., SAITO A.

Type of article: Article, IJR article, Review

Summary

Freeze concentration is one of the methods to concentrate solution by making pure ice in the solution. In general, the ratio of condensation is focused on, and so the research on the concentration captured in ice is very limited. However, quality improvement of eliminating impurities from wastewater is a very important task. In this study, the difference of initial morphology of ice was focused on and the influence on the freeze concentration was studied. It was found that the concentration of solute captured in ice was in the following order, from bigger value, multi-crystal ice, a single crystal ice with growth direction in a-axis and a single crystal ice with growth direction in c-axis. It was clarified that the ratio of concentration between the solute captured in ice and the solute in the mother solution varied from 1/10 to 1/250, depending on the crystal orientation of the ice.

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Format PDF

Pages: 246-252

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Details

  • Original title: Effect of crystal orientation on freeze concentration of solutions.
  • Record ID : 2009-0870
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 2
  • Publication date: 2009/03

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