LIST Technologies: Reduce polymer solvent content to ppm level

The high viscosity of certain polymers sometimes prevents polymerization in the concentrated phase. In these cases, the monomers must be polymerized with a large excess of suitable solvents. Following the solution polymerization process step the low viscosity polymer-solvent solution is typically pre-concentrated by flash evaporation. The solid content, to which the solution can be concentrated to, is limited by the flow-ability of the viscous solution in the flash vessel. To be able to reach higher solid concentrations, the LIST KneaderReactor is the ideal and most economical technology. It allows concentrating the solution up to a solid content of 90 – 95 %. This process is easily scalable

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