Application 9004

Treatment of Viscous Solutions in a Mettler-Toledo EasyMax™ 102

Heterogeneous reactions involving viscous solutions put high demands on equipment and materials. Columns face high pressure drops and require powerful pumps and durable solid phase particles. Stirred tank reactors do not face the same problem, but the high liquid viscosity and low particle density will have a negative impact on reaction kinetics and require tedious filtration to separate the solids afterwards.

With the SpinChem® rotating bed reactor (RBR), the solid phase is contained within a rotating cylinder, through which the liquid phase flows. This achieves efficient mass transfer, and eliminates filtration as well as particle degradation, which allows for efficient and reproducible reactions. With a rotating bed reactor in your Mettler-Toledo EasyMax™ 102 Advanced Synthesis Workstation, you can utilize solid-phase catalysts or adsorbents with ease. Reach out to us for a quote, and we will upgrade your lab!


In this application note, blue dye was removed from a highly viscous liquid using a SpinChem® RBR S2 in an EasyMax™ 102 Advanced Synthesis Workstation. The solid phase used to adsorb the dye was Amberlite IRA-900 Cl- ion exchange resin, and the concentration of dye in the liquid over time was monitored in real-time using an in-line UV-Vis probe.

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