TY - JOUR
T1 - Online characterisation of nanoparticle suspensions using dynamic light scattering, ultrasound spectroscopy and process tomography
AU - Wang, Xue Z.
AU - Liu, Lande
AU - Li, Rui F.
AU - Tweedie, Richard J.
AU - Primrose, Ken
AU - Corbett, Jason
AU - McNeil-Watson, Fraser K.
PY - 2009/6/1
Y1 - 2009/6/1
N2 - Nanoparticle processing in industry faces major challenges in process scale-up and in maintaining consistency and reproducibility in product quality. Online characterisation of product quality and process conditions can help industry effectively address the challenges, because based on real-time measurements, process control and quality assurance strategies can be developed. This paper investigates the use of dynamic light scattering (DLS), ultrasound spectroscopy (USS) and electrical resistance tomography (ERT) for online characterisation of processes of nanoparticle suspensions. The integrated system provides real-time information of particle size distribution (PSD), zeta potential, conductivity and solid concentration and visualises the mixing behaviour between solid and liquid phases. In addition, ERT provides solid concentration data that is needed by DLS and USS for PSD characterisation. The study focuses on examining the impacts of solid concentration, zeta potential and mixing on the stability of suspension systems and the result of size characterisation. The knowledge learnt provides useful information for applying these sensors to nanoparticle manufacturing processes for online process and product quality control.
AB - Nanoparticle processing in industry faces major challenges in process scale-up and in maintaining consistency and reproducibility in product quality. Online characterisation of product quality and process conditions can help industry effectively address the challenges, because based on real-time measurements, process control and quality assurance strategies can be developed. This paper investigates the use of dynamic light scattering (DLS), ultrasound spectroscopy (USS) and electrical resistance tomography (ERT) for online characterisation of processes of nanoparticle suspensions. The integrated system provides real-time information of particle size distribution (PSD), zeta potential, conductivity and solid concentration and visualises the mixing behaviour between solid and liquid phases. In addition, ERT provides solid concentration data that is needed by DLS and USS for PSD characterisation. The study focuses on examining the impacts of solid concentration, zeta potential and mixing on the stability of suspension systems and the result of size characterisation. The knowledge learnt provides useful information for applying these sensors to nanoparticle manufacturing processes for online process and product quality control.
KW - Dynamic light scattering
KW - Nanoparticles
KW - Online measurement
KW - Process analytical technology
KW - Ultrasound spectroscopy and process tomography
UR - http://www.scopus.com/inward/record.url?scp=65749089706&partnerID=8YFLogxK
U2 - 10.1016/j.cherd.2008.12.014
DO - 10.1016/j.cherd.2008.12.014
M3 - Article
AN - SCOPUS:65749089706
VL - 87
SP - 874
EP - 884
JO - Chemical Engineering Research and Design
JF - Chemical Engineering Research and Design
SN - 0263-8762
IS - 6
ER -