Removal of contaminants from N-methyl-2-pyrrolidone

Details Removal of contaminants from N-methyl-2-pyrrolidone Removal of contaminants from N-methyl-2-pyrrolidone

1999-06-11

2000-04-18

Powers, Fiona T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D207267

Patent

active

060517204

ABSTRACT:
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.

REFERENCES:
patent: 4501902 (1985-02-01), Cleary
patent: 4510316 (1985-04-01), Cleary et al.
patent: 4895959 (1990-01-01), Kato et al.

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