The direct fluorination of propylene carbonate has been investigated.[1, 2] Propylene carbonate and other cyclic carbonates are common in industrial applications, such as solvent additives for lithium ion battery technologies. Furthermore the high decomposition stability qualifies them as solvent during the fluorination of other substances.[1] Using all these abilities the direct fluorination of the inorganic salt closo-K2[B12H12] in cyclic carbonates was examined.The direct fluorination technique in a minireactor with the ability of contacting gas and liquid media in the reactor channel was mainly used. The potential of this technique offers several advantages. Direct fluorination reactions with organic materials are very fast and exothermic. The minireactor has a very thin reaction channel with an active cooling system which allows a very good temperature control during the reaction and offers a very high surface to volume ratio.[3]Fig. 1. Photograph of the minireactor components before being assembled. Layers: 1 inlets and outlets; 2 reaction channel and channels for temperature sensors; 3 cooling channel; 4 inlets for cooling.References[1] Hill M., Baron P., Cobry K., Goll S., Lang P., Knapp C., Scherer H., Woias P., Zhang P., Krossing I., ChemPlusChem, 2013  , 78, 292.[2] Hill M., Dissertation, Universit�t Freiburg, 2013  .[3] Lang P., Hill M., Krossing I., Woias P., Chemical Engineering Journal, 2012  , 179, 330.

Direct fluorination in a minireactor: Propylene carbonate

248th National Meeting (2014)

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