Extraction of aromatics with n-cyclohexyl-2- pyrrolidone

Details Extraction of aromatics with n-cyclohexyl-2- pyrrolidone Extraction of aromatics with n-cyclohexyl-2- pyrrolidone

C - Chemistry, Metallurgy

07

C

260/715.9

C07C 7/10 (2006.01) C07C 15/02 (2006.01) C10G 21/20 (2006.01)

Patent

CA 1262365

ABSTRACT This invention relates to a low energy process for the solvent extraction of aromatic hydrocarbons from hydrocarbon streams containing the same, using as the solvent N-cyclohexyl-2-pyrrolidone together with small amounts of water. This solvent may be recovered from the aromatics by cooling the aromatic/solvent mixture, and adding water, whereby separation takes place without distillation. The solvent may then be separated from the water by heating the solvent/water mixture.

494700

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