Emulsification time in the agitation vessel equipped with double impellers

• Autorzy: Broniarz-Press L. , Woziwodzki S.
• Języki publikacji: EN

Abstrakty

EN

The paper deals with the results of experiments on mixing in a vessel equipped with double impellers. The flat-bottomed vessel was equipped with the Rushton turbine (RT) or six flat blade turbines (FBT) or six pitched down blade turbines (PBT). The impellers were mounted symmetrically on the common shaft in various combinations of the two impellers. It has been found that the emulsification time of the oil phase decreases when the distance between the impellers increases. In this case, because of the smaller distance between the upper impeller and the oil phase, the hydrodynamic forces have greater influence. The lowest value of the emulsification time has been achieved for the vessel with the dual Rushton turbine (in comparison with the flat or pitched blade turbine).

Słowa kluczowe

EN

emulsification time; emulsion; mixing; multiple impellers

PL

emulgowanie; emulsja; mieszanie; mieszadło

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2006
• Tom: Vol. 8, nr 4
• Strony: 53--55
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Broniarz-Press L.

autor

Woziwodzki S.

• Poznań University of Technology, Division of Chemical Engineering and Equipment, pl. M.Skłodowskiej-Curie 2, 60-965 Poznań,

Bibliografia

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• (3) Paglianti A., Pintus S.: An impedance probe for the measurement of the liquid hold-up and mixing time in two/three-phase stirred tank reactors, Experiments in Fluids, 2001, 31, 4, 417.
• (4) Ceccio S. L., George D. L.: A review of electrical impedance techniques for the measurement of multiphase flow, Journal of Fluids Engineering, 1996, 118, 391.
• (5) Pinderre P., Piccerelle Ph., Cauture E., Kalantzis G., Reynier J. P., Joachim J.: Formulation and evaluation of o/w emulsions using experimental design, International Journal of Pharmaceutics, 1998, 163, 73.