N-methyl-2-pyrrolidone (Nmp) By Tianjin Zhongxin Chemtech Co., Ltd.

We are manufacturing and exporting huge range of N-Methyl-2-pyrrolidone (NMP) in Tianjin, China. N-Methyl-2-pyrrolidone (NMP) is an organic compound consisting of a 5-membered lactam. It is a colorless liquid, although impure samples can appear yellow. It is miscible with water and with most common organic solvents. It also belongs to the class of dipolar aprotic solvents such as dimethylformamide and dimethyl sulfoxide. It is used in the petrochemical and plastics industries as a solvent, exploiting its nonvolatility and ability to dissolve diverse materials.
Preparation
NMP is produced industrially by a typical ester-to-amide conversion, by treating butyrolactone with methylamine. Alternative routes include the partial hydrogenation of N-methylsuccinimide and the reaction of acrylonitrile with methylamine followed byhydrolysis. About 20,000 to 30,000 tons are produced annually.
Applications
NMP is used to recover certain hydrocarbons generated in the processing petrochemicals, such as the recovery of 1,3-butadiene andacetylene. It is used to absorb hydrogen sulfide from sour gas and hydrodesulfurization facilities. Due to its good solvency properties NMP is used to dissolve a wide range of polymers. It also used as a solvent for surface treatment of textiles, resins, and metal coated plastics or as a paint stripper. It is utilized as a solvent in the commercial preparation of polyphenylene sulfide.