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US6051720A Removal of contaminants from N-methyl-2-pyrrolidone 失效
去除N-甲基-2-吡咯烷酮中的污染物

Removal of contaminants from N-methyl-2-pyrrolidone
摘要:
A process is provided for moving at least one contaminant selected from the group consisting of phenol thiophenol, and phenyl disulfide from contaminated NMP by reacting at least one monohalogenated aromatic compound and a base with the contaminate NMP.
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