Purification of n-methylpyrrolidone

Details Purification of n-methylpyrrolidone Purification of n-methylpyrrolidone

C - Chemistry, Metallurgy

07

C

260/324, 402/345

C07C 39/04 (2006.01) C07D 207/36 (2006.01)

Patent

CA 1190934

Abstract of the Disclosure Phenol is extracted with a chlorinated aromatic extractant, such as p-dichlorobenzene, from an aqueous mixture containing phenol and N-methylpyrrolidone. In an embodiment of this invention the purified N-methylpyrrolidone is recycled for use in a poly(phenylene sulfide) polymerization process.

428085

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