METHOD FOR THE REMOVAL OF ACETYLENES FROM OLEFINS USING IONIC LIQUID-BASED EXTRACTANTS

摘要

PURPOSE: A method for removing acetylenes from olefins is provided to effectively remove an acetylene-based compound from olefins using an ionic liquid-based solution, and to reduce solvent loss rate and device costs. CONSTITUTION: A method for removing acetylenes from olefins uses an ionic liquid-based solution. The ionic liquid-based solution comprises at least one or two kinds of ionic liquid selected from an imidazolium compound represented by chemical formula 1, and copper halide. In chemical formula 1, R^1 and R^2 show C1-6 alkyl group, or C1-6 alkoxy group; Y is halogen ion, phosphate ion[R^3OPH(O)O]^-, or phosphate ion[(R^3O)2P(O)O]^-; and R^3 C1-6 alkyl group.