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Elmet Technologies

Lanxess LEWATIT® K 2620 Polymer-based Resin
Categories: Polymer; Thermoset

Material Notes: Lewatit® K 2626 is a strongly acidic, macroporous, polymer-based catalyst in spherical bead form, with sulfonic acid groups. It is ideal suited as a heterogeneous catalyst for organic reactions and for the processing of aqueous and organic liquids. A special process has been used to hyper-activate the sulfonic acid groups of the reactive centers, increasing the acidity and reactivity of this catalyst relative to conventional polymer catalyst. The large pore structure facilitates the transport of reactants to the reactive center. A high degree of crosslinking, coupled with a compact bead structure result in high chemical and mechanical stability, enabling the Lewatit K 2620 to be used in polar and non-polar media. Therefore, it is especially suitable for use in the following applications:
  • Production of the gasoline additives MTBE, ETBE and TAME
  • Phenol alkylations, hydration of olefins, esterification, etherification, condensation and alkylation of larger polar and non-polar molecules.

Information provided by Lanxess.

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Physical PropertiesMetricEnglishComments
Bulk Density 0.760 g/cc0.0275 lb/in³
Density 1.20 g/cc0.0434 lb/in³
Bead Size 0.400 - 1.25 mm0.0157 - 0.0492 in>90%
Storage Temperature -20.0 - 40.0 °C-4.00 - 104 °F

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