Studies of a mixing process by using the various types of magnetic particles as active micro-stirrers

Maciej Konopacki,

Artur Frąckowiak,

Piotr Tabero,

Karol Fijałkowski,

Marek Rakoczy


The main purpose of this report is to present the effect of various types of magnetic particles on the mixing time. The magnetic particle may be treated as a miniaturized mixer and it may offer a unique, alternative approach to mixing. The obtained results suggest, that the mixing time under the rotating magnetic field (RMF) may be worked by using the relation between the mixing time number and the modified Reynolds number.

Słowa kluczowe: mixing process, mixing time, magnetic particles, magnetic field

Rakoczy R., Masiuk S., Influnece of transverse rotating magnetic field on enhancement of solid dissolution process, AIChE J., vol. 56, 1416-1433.

Rakoczy R., Enhancement of solid dissolution process under the influence of rotating magnetic field, Chem. Eng. Process: Process Intensif., vol. 49, 42-50.

Abbasov T., Yildiz Z., Sarimeseli, A., An experimental study on impacts of some process parameters on the electromagnetic filtration performance, International Review of Chemical Engineering, vol. 2, 2010, 289-292.

Fraňa K., Stiller J., Grundmann R., Transitional and turbulent flows driven by a rotating magnetic field, Magnetohydrodynamics, vol. 42, 2006, 187-197.

Hristov J., Simple bed expansion correlation for magnetically assisted gas-fluidized tapered beds, International Review of Chemical Engineering, vol. 1, 2009, 316-323.

Saxena C., Ganzha V.L., Rahman S.H., Dolidovich A.F., Heat Transfer and Relevant Characteristics of Magnetofluidized Beds, Advances in Heat Transfer, vol. 25., Academic Press, New York 1994.

Hristov J.Y., Fluidization of ferromagnetic particles in a magnetic field. Part2: field effects on preliminary gas fluidized beds, Powder Technology, vol. 97, 1998, 35-44.

Hao Z., Zhu Q., Lei Z., Li H., CH4–CO2 reforming over Ni/Al2O3 aerogel catalysts in a fluidized bed reactor, Powder Technology, vol. 182, 2008, 474-479.

Lu L., Ryu K., Liu C., A magnetic microstirrer and array for microfluidicmixing, Journal of Microelectromechanical Systems, vol. 11, 2002, 462-469.