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Physical Property and Optimal Operating Condition in the Salting-out Dye Crystallization System  

Pyun, Yu Ri (Department of Chemical engineering, Soonchunhyang University)
Han, Hyun Kak (Department of Chemical engineering, Soonchunhyang University)
Jung, Hyong Ki (Department of Chemical engineering, Soonchunhyang University)
Publication Information
Korean Chemical Engineering Research / v.47, no.2, 2009 , pp. 157-162 More about this Journal
Abstract
In this paper, the density, viscosity and solubility are measured to know the physical properties of dye. By changing the concentration of dye solution, the density change of the dye solution was very small and the viscosity of the dye solution was increased. Also, by changing the temperature of dye solution, the density change of the dye solution was increased but the viscosity of the dye solution was decreased. Solubility of dye conducts under the changing the salt and concentration of dye. In 20 wt% of dye and 15 wt% KCl, the amount of dye crystal is maximal. Also, batch salting-out experiments were performed with various conditions to know the optimal operating conditions of dye crystal. Under the various experiments, optimal operating condition was found based on amount of dye; added 15 wt% KCl, $25^{\circ}C$ temperature, 100 RPM, added at once.
Keywords
Dye Crystallization; Salting Out; Crystallization; Solubility; KCl;
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