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发明公开
CN102029156A 由1,4-丁二醇制备γ-丁内酯和N-甲基吡咯烷酮的方法 有权 转让

由1,4-丁二醇制备γ-丁内酯和N-甲基吡咯烷酮的方法
摘要：
本发明提供在非铬催化剂的存在下由1，4-丁二醇制备γ-丁内酯(GBL)和由1，4-丁二醇制备N-甲基吡咯烷酮(NMP)的方法。更具体而言，本发明提供下述方法：所述方法在不含铬的非铬催化剂的存在下以环境友好的方式制备γ-丁内酯，所述制备具有很高的成本效益，长时间仅需要较低的成本，具有很高的产率和选择性，然后所述方法以高产率、长期稳定地制备N-甲基吡咯烷酮，该制备在温和的条件下不使用催化剂而通过将得到的γ-丁内酯和一甲胺(MMA)水溶液供应至反应器以使γ-丁内酯和一甲胺相互反应而进行。
摘要（英）：

The invention provides a process for preparing of [gamma]-butyrolactone (GBL) and n-methyl pyrrolidone (NMP) from 1,4-butanediol with the existence of a non-chromium catalyst. More specifically, the invention provides a method for preparing GBL with the existence of a non-chromium catalyst in an environmental friendly manner. The preparing process has high cost efficiency and high yield and selectivity. The process can be used for preparing NMP in a highly productive and stable manner. No catalyst is used in the process under a mild condition, and the obtained GBL and methylamine (MMA) aqueous solution are feed to a reactor so that the GBL and MMA aqueous solution are interreacting with each other.

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