Retraction notice to “Mass-transfer characteristics by surface aeration of large paddle impeller: Application to a polymerization reactor with liquid level change” [Chem. Eng. Res. Des. 86 (2008) 1345–1349]

Pumping characterisation of the maxblend impeller for Newtonian and strongly non‐Newtonian fluids

“…Despite a rather simple geometry, comprised of a lower large paddle and an upper grid, good performance has been observed from the laminar to the turbulent regimes. When compared with the helical ribbon and anchor at low Reynolds numbers or to turbines in the turbulent regime, the Maxblend provides a good compromise between mixing efficiency and power consumption. It has been successfully applied to many applications such as polymerisation, bacterial culture, gas dispersion and solid suspension …”

“…When compared with the helical ribbon and anchor at low Reynolds numbers [1][2][3] or to turbines in the turbulent regime, [1,[3][4][5][6][7] the Maxblend provides a good compromise between mixing efficiency and power consumption. It has been successfully applied to many applications such as polymerisation, [6] bacterial culture, [1,4] gas dispersion [6] and solid suspension. [5,8] Several experimental and numerical investigations on the Maxblend have been published regarding the impact of design parameters in terms of power consumption, [9][10][11][12] mixing time [9,10,12] and dispersive performance.…”