Patent ID: 7803975
Filing Date: 2010-09-28
Classification: C07C

Abstract:
1. A process for separating fluoroolefin from a composition comprising HF and fluoroolefin, said process comprising extracting said composition with an extractant, wherein said extractant comprises at least one compound selected from the group consisting of hydrocarbons, chlorocarbons, chlorofluorocarbons, hydrochlorofluorocarbons, hydrofluorocarbons, perfluorocarbons, and perfluorinated ethers, and wherein said fluoroolefin is separated from said mixture by said extractant, and wherein said fluoroolefin comprises compounds with 3 to 10 carbon atoms and is selected from the group consisting of: (i) fluoroolefins of the formula E- or Z—R1CH═CHR2, wherein R1 and R2 are, independently, C1 to C6 perfluoroalkyl groups; (ii) cyclic fluoroolefins of the formula cyclo-[CX═CY(CZW)n-], wherein X, Y, Z, and W, independently, are H or F, and n is an integer from 2 to 5; and (iii) fluoroolefins selected from the group consisting of: