Time-dependent slurry viscosity of fine-grained silicon dioxide particles

• Autorzy: Kawalec-Pietrenko B. , Konopacka-Łyskawa D.
• Konferencja: Second International Conference on Engineering Rheology ICER 2003
• Języki publikacji: EN

Abstrakty

EN

The silicon dioxide particles are obtained as a result of chemical reaction of the sodium silicate in the aqueous glycol solytion with the gaseous carbon dioxide supplying the reaction mixture in the riser of the draft-tube airlift reactor. It is observed the viscosity changes during the reaction time. It is noticed that the gas flow rate influence distinctly the start moment of the reaction as well as the suspension viscosity course during the reaction i.e. gas supplying duration.

Słowa kluczowe

EN

air-lift reactor; silicon dioxide; carbon dioxide; reaction; suspension apparent viscosity

PL

dwutlenek węgla; dwutlenek krzemu; reakcja chemiczna; zawiesina

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2003
• Tom: Vol. 8, no spec.
• Strony: 259--264
• Opis fizyczny: Bibliogr. 10 poz., tab., wykr.

Twórcy

autor

Kawalec-Pietrenko B.

• Technical University of Gdańsk, Department of Chemical and Process Engineering Narutowicza 11/12, 80-952 Gdańsk, POLAND

autor

Konopacka-Łyskawa D.

• Technical University of Gdańsk, Department of Chemical and Process Engineering Narutowicza 11/12, 80-952 Gdańsk, POLAND

Bibliografia

• [1] Bello R.A., Robinson C.W. and Moo-Young M. (1984): Liquid circulation and mixing characteristics of airlift contactors. - Can. J. Chem. Eng., vol.62, p.573.
• [2] Chisti M.Y. and Moo-Young M. (1988): Prediction of liquid circulation velocity in airlift reactors with biological media. - J. Chem. Tech. Biotech., vol.42, pp.211-219.
• [3] Godbole S.P., Schumpe A. and Shah Y.T. (1990): Mass transfer in the gas - liquid - solid bubble column. - Chem, Eng. Sci., vol.45, pp.3593-3596.
• [4] Kawalec-Pietrenko B. (1992): Time-dependent gas hold-up and bubble size distribution in a highly viscous liquids. - Chem. Eng. J., vol.50, pp.B29-B35.
• [5] Kawalec-Pietrenko B. (1992a): Liquid circulation in the internal loop airlift reactor. - Eng. Chem. Proces., vol.l3, pp.229-242 (in Polish).
• [6] Kawalec-Pietrenko B. (2000): Liquid circulation velocity in the inverse fluidized bed airlift reactor. - Bioproc. Eng,, vol.23, pp.397-402.
• [7] Kawalec-Pietrenko B. and Pietrenko W. (1999): Generation of smali bubbles and small bubble-liquid mass transfer In airlift reactors containing highly viscous liquids. - Bioproc. Eng., vol.22, pp.89-95.
• [8] Maher P.K. (1969): Amorphous Silica, In: Encyclopedia of Chemical Technology (H.F. Mark, J.J. McKettlt, D.F. Othmer, Eds.). - New York: Wiley, vol.l8, pp.61-72.
• [9] Philip J., Proctor J.M., Niranjan K. and Davidson J.F. (1990): Gas hold-up and liquid circulation in internal loop reactors containing highly viscous newtonian and non-Newtonian liquids. - Chem. Eng. Sci., yo1.45, pp.651-664.
• [10] Schramm G. (1998): Reology. Basis and Applications. - Research Publ. Centre of Polish Academy of Sciences, Poznań, pp.38-59.