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2008 | 10 | 1 | 60-65
Tytuł artykułu

Size-dependent growth kinetics of vitamin C crystals in water solutions of L(+)-ascorbic acid with the addition of methanol and ethanol

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Growth kinetics of vitamin C crystals during the batch mass crystallization process in L(+)-ascorbic acid - methanol - ethanol - water system was determined. The linear growth rate values were estimated on the basis of the product crystal size distributions. The kinetic model of the continuous process in a MSMPR crystallizer was adopted for the batch mode description according to Nyvlt's conception, taking the sizedependent growth (SDG) rate effects into consideration. The kinetic parameter values were determined with a Rojkowski hyperbolic SDG model. A good compatibility between the experimental product crystal population density distributions and the SDG model predictions was observed. The interpretation of the kinetic data was presented and discussed.
Wydawca

Rocznik
Tom
10
Numer
1
Strony
60-65
Opis fizyczny
Daty
wydano
2008-01-01
online
2008-04-03
Twórcy
  • Faculty of Chemistry, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
  • Department of Chemical & Process Engineering, Silesian University of Technology, M. Strzody 7, 44-101 Gliwice, Poland
  • Faculty of Chemistry, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
  • Faculty of Chemistry, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
Bibliografia
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  • Matynia, A. & Wierzbowska, B. (1986). The influence of some factors on the yield of ascorbic acid crystallization from aqueous solutions. Przem. Chem. 65, 672 - 674.
  • Matynia, A. & Wierzbowska, B. (1987). Studies on the quality of ascorbic acid crystals obtained from aqueous solutions. Przem. Chem. 66, 288 - 289.
  • Bodor, B., Halasz, S. & Vassanyi, I. (1993). Crystallization parameters influencing size, habit and purity of vitamin C. In: Proceedings of the 12th Symposium on Industrial Crystallization, Z. H. Rojkowski (Ed.) (pp. 4.065 - 4.070). Warsaw, Poland.
  • Bodor, B. & Dodony, I. (1995). Crystallization of vitamin C under different experimental conditions. Hung. J. Ind. Chem. 23, 289 - 291.
  • Bodor, B. & Lakatos, B. G. (1999). Crystal growth of L-ascorbic acid in programmed batch cooling crystallization. Hung. J. Ind. Chem. 27, 297 - 300.
  • Freitas, A. M.B. & Giulietti, M. (2002). Crystallization of L-ascorbic acid from aqueous solutions. In: Proceedings of the 15th Symposium on Industrial Crystallization, A. Chianese (Ed.) Vol. 1, No. 232. Sorrento, Italy.
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  • Omar, W. (2006). Effect of solvent composition on crystallization process of ascorbic acid. Chem. Eng. Technol. 29, 119 - 123. DOI: 10.1002/ceat.200500283.[Crossref]
  • Suprunov, N. A., Lymar, A. P., Varentsov, V. V., Streltsov, V. V. & Smirnov N. Ju. (1994). Linear growth rate of ascorbic acid crystals during crystallization from water - alcohol solutions. Massov. Kristall. 3, 45 - 50.
  • Matynia, A., Wierzbowska, B., Bechtold, Z. & Kozak, E. (1999). Nucleation of vitamin C. In: Proceedings of the 14th Symposium on Industrial Crystallization, CD-ROM No. 0090. Cambridge, UK: Inst. Chem. Eng.
  • Matynia, A., Wierzbowska, B. & Bechtold, Z. (1998). Kinetics of nucleation and crystal growth for L(+)-ascorbic acid in aqueous solution with methanol, ethanol or isopropanol. Inż. Ap. Chem. 37(6), 3 - 7.
  • Matynia, A., Wierzbowska, B. & Szewczyk, E. (2000). Crystal growth of L(+)-ascorbic acid in a batch crystallizer. Pol. J. Chem. Technol. 2(1), 14 - 18.
  • Matynia, A. & Wierzbowska, B. (1987). Obtaining crystalline vitamin C from water - methanol solutions. Inż. Ap. Chem. 26(4), 15 - 18.
  • Wierzbowska, B., Matynia, A., Piotrowski, K. & Koralewska, J. (2007). Solubility and nucleation in L(+)-ascorbic acid - methanol - ethanol - water system. Chem. Eng. Proc. 46, 351-359. DOI: 10.1016/j.cep.2006.07.005.[Crossref]
  • Piotrowski, K., Wierzbowska, B., Koralewska, J. & Matynia, A. (2006). Neural model of the vitamin C solubility in a four-compound miscible system: L(+)-ascorbic acidmethanol-ethanol-water. In: Proceedings of 17th International Congress of Chemical and Process Engineering CHISA, CD-ROM, No. 288. Prague, Czech Republic: Proc. Eng. Publisher.
  • Piotrowski, K., Wierzbowska, B., Koralewska, J. & Matynia, A. (2006). Influence of methanol and ethanol on vitamin C crystallization temperature - neural network model. Pol. J. Chem. Technol. 8(4), 23 - 26.
  • Matynia, A., Wierzbowska, B., Szewczyk, E. & Bechtold, Z. (2001). Growing of vitamin C crystals in the system: L(+)-ascorbic acid - methanol - ethanol - water. Inż. Ap. Chem. 40(5), 23 - 24.
  • Wierzbowska, B., Matynia, A., ćwiertnia, E. & Bechtold, Z. (2004). Quality of vitamin C crystals in the L(+)-ascorbic acid-methanol-ethanol-water system. Inż. Ap. Chem. 43(4/5), 48 - 49.
  • Wierzbowska, B., Matynia, A., Bechtold, Z. & Małasińska, M. (2004). Crystallization capacity in the L(+)-ascorbic acid - methanol - ethanol - water system. Inż. Chem. Proc. 25, 1771 - 1776.
  • Wierzbowska, B., Koralewska, J., Matynia, A. & Piotrowski, K. (2006). Attempts to estimate the linear growth rate of vitamin C crystals. Inż. Ap. Chem. 45(4), 152 - 153.
  • Wierzbowska, B., Piotrowski, K., Koralewska, J. & Matynia, A. (2008). Growth kinetics of vitamin C in L(+)-ascorbic acid - methanol - ethanol - water system: size-independent growth model approach. Chem. Biochem. Eng. Q. 22 (in press).
  • Nývlt, J., Söhnel, O., Matuchová, M. & Broul, M. (1985). The kinetics of industrial crystallization. Prague, Czech Republic: Academia.
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_v10026-008-0015-5
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