Removal of impurities from n-methyl-pyrrolidone used for...

Details Removal of impurities from n-methyl-pyrrolidone used for... Removal of impurities from n-methyl-pyrrolidone used for...

C - Chemistry, Metallurgy

07

D

260/324

C07D 207/263 (2006.01) C10G 21/28 (2006.01)

Patent

CA 1300163

ABSTRACT OF THE DISCLOSURE N-methyl pyrrolidone solvent (hereinafter NMP) used to extract aromatic components from lubricat- ing oil distillates is purified by contacting the solvent with activated alumina.

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