A Process Of Preparing High Purity Fluoroethylene Carbonate (Fec)

Abstract: The present invention discloses a process for preparing colorless and high purity Fluoroethylene Carbonate (FEC). The process comprises the steps of: a) mixing anhydrous potassium fluoride and anhydrous dimethyl carbonate and heating to remove water; b) cooling the reaction mixture followed by addition of a catalyst and a polymerization inhibitor to the reaction mixture; c) adding Chloroethylene Carbonate (CEC) to the reaction mixture at 45-60 °C; d) maintaining the reaction temperature at 70-75 °C for 1-4 hrs; e) cooling the reaction mixture to room temperature followed by vacuum filtration and washing; f) carrying out vacuum distillation to obtain the crude product; g) adding stabilizer to the crude product; and h) subjecting the crude product to purification to obtain pure FEC.

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