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A High‐Gradient Magnetic Separator for Highly Viscous Process Liquors in Industrial Biotechnology
Author(s) -
Roth HansChristian,
Prams Andreas,
Lutz Michael,
Ritscher Jonathan,
Raab Moritz,
Berensmeier Sonja
Publication year - 2016
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201500398
Subject(s) - magnetic separation , separator (oil production) , magnetic nanoparticles , backwashing , coating , magnet , materials science , chemical engineering , nanoparticle , chemistry , chromatography , process engineering , nanotechnology , mechanical engineering , engineering , metallurgy , physics , thermodynamics , inlet
Following the demand for highly efficient processes in biotechnology, an innovative and cost‐effective permanent magnet‐based high‐gradient magnetic separator with static magnetic filters (SMF) is presented. The laboratory‐scale prototype has a high particle capacity and is characterized by an outstanding separation performance. Low‐cost magnetic nanoparticles (MNPs, hydrodynamic diameter 100 – 200 nm) were separated from highly viscous sucrose solutions. Losses of MNPs with filtrate remained very low. The in situ implementation of ultrasound technology during MNP‐backwashing yielded excellent MNP recovery efficiencies. By applying a non‐stick coating onto the SMF surface, the MNP recovery efficiency could be enhanced significantly compared to conventional SMFs.