Provided are a process and a device for preparing environmentally-friendly insulating gas perfluoroalkylnitrile. The device comprises a first tank reactor, a second tank reactor, and a fixed bed reactor. A condensing and collecting device is provided at the top of the first tank reactor, a collecting and guiding channel at the bottom of the condensing and collecting device is connected to an inlet of a storage tank, and an outlet of the storage tank is connected to an inlet of the second tank reactor. The second tank reactor is connected to a perfluoroolefin tank. An outlet of the second tank reactor is connected to a storage gasification tank. The storage gasification tank is connected to a carrier gas tank, and an outlet of the storage gasification tank is connected to an inlet of the fixed bed reactor. The present invention starts from cyanuric chloride and perfluoropropylene, and uses two tank reactors and a fixed bed reactor to realize production with high atom economy. The preparation method has simple reaction conditions, high atom economy, low cost, and is continuous and enables scale production.
本发明提供了一种制备环保绝缘气体
全氟烷基腈的工艺和装置。该装置包括第一罐反应器、第二罐反应器和固定床反应器。在第一罐反应器顶部设置有冷凝和收集装置,该冷凝和收集装置底部的收集和导向通道连接到储罐的进口,储罐的出口连接到第二罐反应器的进口。第二罐反应器连接到
全氟烯烃罐。第二罐反应器的出口连接到储存气化罐。储存气化罐连接到载气罐,储存气化罐的出口连接到固定床反应器的进口。本发明从三聚
氰氯和
全氟丙烯开始,利用两个罐反应器和一个固定床反应器实现高原子经济的生产。该制备方法具有简单的反应条件、高原子经济、低成本,是连续的并能进行规模化生产。