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A review on production of NMP ( N - methyl - pyrrolidone ) and phenol refining was given.

总结了N—甲基吡咯 烷 酮和苯酚精制的生产情况.

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Methods Etiracetam was synthesized from 2 - pyrrolidone by N - alkylation and aminolysis.

方法 2- 吡咯烷酮经N - 烷基化、氨解反应合成乙拉西坦.

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Ths paper reviews the property, some methods about synthesis and use of polyvinyl pyrrolidone.

综述了聚乙烯吡咯烷酮的性质, 合成方法及其应用.

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The N - methyl - 2 - pyrrolidone is chosen as polycondensation media and toluene as carrier of water.

选择N - 甲基 -2- 吡咯烷酮为反应介质,甲苯为带水剂.

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The phase separation conditions for aqueons two - phase system based on polyethylene glycol ( PEG ) 1500 - polyvinyl pyrrolidone ( PVP ) 30,000 - Salt - H 2 O were examined.

通过实验选择聚乙二醇(PEG1500 ) 与聚乙烯吡咯烷酮 ( PVP30 000)组合表面活性剂 ( NH4 ) 2 SO4 H2O形成双水相体系及其成相条件.

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Polyvinylpyrrolidone ( PVP ) is a kind of fine polymer obtained by free radical polymerization vinyl pyrrolidone ( NVP ).

聚乙烯基 吡咯烷酮 ( PVP ),是一种水溶性精细高分子聚合物.

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The production status of the solvent refining with N - methyl - pyrrolidone ( NMP ) assolvent is summarized.

总结了中国石化兰州炼油化工总厂N - 基吡咯烷酮 ( MP ) 制装置10多年来生产运行的状况及达到的技术水平.

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