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1)  1-Methyl-5-Pyrrolidinone
N-甲基-a-吡咯烷酮
2)  N-methylpyrrolidone
N-甲基吡咯烷酮
1.
Isobaric vapor-liquid equilibria for water-acetic-acid-N-methylpyrrolidone;
水-醋酸-N-甲基吡咯烷酮体系等压汽液平衡研究
2.
The processes and technical characteristics of producing butadiene using acetonitrile,N,N′-dimethylformamide,N-methylpyrrolidone as solvents by extractive distillation were presented.
介绍了用N-甲基吡咯烷酮、乙腈、二甲基甲酰胺3种不同溶剂,采用萃取精馏方法生产丁二烯的工艺流程和特点,并介绍了选择性加氢除炔烃技术、分壁式技术。
3.
The vapor-liquid equilibrium model of extractive distillation with N-methylpyrrolidone(NMP)as extractant for separating 1,3-butadiene from C4 fraction were set up by using NRTL equation and UNIFAC group model.
采用NRTL方程和UNIFAC模型计算N-甲基吡咯烷酮(NMP)-C4物系的汽液平衡数据,由实验数据回归得到NRTL方程的二元交互作用参数。
3)  N-methyl-2-pyrrolidone
N-甲基吡咯烷酮
1.
Analysis of Influencing Factors of the Production Process of N-methyl-2-pyrrolidone;
N-甲基吡咯烷酮生产工艺影响因素分析
2.
Vapor-liquid equilibrium(VLE) data of isoprene-N-methyl-2-pyrrolidone(NMP) and 1-pentene-NMP binary systems and isoprene-1-pentene-NMP ternary system at atmospheric pressure were measured.
利用气相单循环的小型汽液平衡釜测定了异戊二烯-N-甲基吡咯烷酮(NMP)、1-戊烯-NMP、异戊二烯-1-戊烯-NMP物系的常压(101。
4)  NMP
N-甲基吡咯烷酮
1.
New Advances on the Chemical Synthesis & Application of PVP and NMP;
聚乙烯吡咯烷酮和N-甲基吡咯烷酮合成工艺和应用
2.
N-Methylpyrrolidone (NMP) used as solvent for lube oil refining has strong dissolving ability, perfect selectivity, and good environmental protection function.
N-甲基吡咯烷酮溶剂在润滑油精制过程中溶解能力强、选择性好,具有良好的环保性能。
5)  N-Methyl pyrrolidone
N-甲基吡咯烷酮
1.
The result shows, the N-Methyl pyrrolidone process has a significant comprehensive advantage, and this technology is recommended for the to-be-built butadiene extraction plant.
结果表明,N-甲基吡咯烷酮工艺技术的综合优势更为明显,推荐新建丁二烯抽提装置采用该技术。
2.
A process for the production of aromatic rubber extending oil was studied by N-methyl pyrrolidone or furfural solvent extraction of vacuum gas oil obtained from Xinjiang mixed crude oil.
以N-甲基吡咯烷酮和糠醛为溶剂,对新疆混合原油的减压馏分油进行了精制,并对此抽出油进行注水、降温沉降研究及芳香烃型橡胶填充油的放大制备试验研究。
3.
The down stream product of y-butyrolactone in China is mainly N-methyl pyrrolidone, accounted for 40% of the total consumption of r-butyrolactone.
我国γ-丁内酯的主要下游产品是N-甲基吡咯烷酮,约占γ-丁内酯总消费量的40%。
6)  N-methyl pyrrolidone-free
无N-甲基吡咯烷酮
补充资料:N-甲基-a-吡咯烷酮
分子式:C5H9NO
分子量:99.13
CAS号:872-50-4

性质:无色液体。熔点-23℃。沸点202℃,84.5℃(1.87kPa),81-82℃(1.33kPa)。相对密度1.0260(25/25℃)折光率1.4684。闪点86℃。能与水和混溶,溶于乙醚、丙酮及各种有机溶剂。能随水蒸气挥发,稍有氨气的气味。化学性质稳定,对碳钢、铝不腐蚀,对铜稍有腐蚀性。

制备方法:由γ-丁内酯与甲胺反应而得。反应第一步是γ-丁内酯与甲胺生成4-羟基-N-甲基丁酰胺,第二步是进而脱水生成N-甲基吡咯烷酮。两步反应可按排在管式反应器中连续进行,γ-丁内酯与甲胺的摩尔比为1:1.15,压力约6MPa,温度为250℃。反应完成后,经浓缩、减压蒸馏而得成品。收率90%。如果采用釜式反就器生产,甲胺用量为理论量的1.5-2.5倍,举实验室制备为例。在500ml压热器中,加入2molγ-丁内酯和4摩尔液体甲胺,密闭加热,于280℃保温4h。冷却后放出过量的甲胺,蒸馏,收集201-202℃馏分,约得产品180g,收率约90%。原料消耗(kg/g)γ-丁内酯 980甲胺(40%) 860

用途:N-甲基吡咯烷酮是一种优良的抽提溶剂,广泛用作芳烃抽提、乙炔提浓、丁二烯分离和合成气的脱硫等过程中的萃取剂,同时也是农药、工程塑料、涂料、合成纤维、集成电路等生产中的溶剂,也可作工业用洗涤剂、分散剂、染色剂、润滑油抗冻剂等。该品有毒性低,大鼠口服LD50为7ml/kg。

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