This invention provides a method capable of efficiently producing 2,3,3,3-tetrafluoropropene (HFO-1234yf) with a recycling step using substantially a single reaction step. A method for producing 2,3,3,3-tetrafluoropropene (HFO-1234yf), comprising a reaction step of reacting at least one chlorine-containing starting compound selected from the group consisting of chlorine-containing alkanes represented by formula (1): CX
2
YCHClCH
2
Z (wherein X, Y and Z independently represent H, F or Cl) and chlorine-containing alkenes represented by formula (2): CX
2
YCCl═CZ
2
(wherein X, Y and Z independently represent H, F or Cl) with a fluorinating agent, wherein the molar ratio of the chlorine-containing starting compound represented by formula (1) or (2) newly supplied to the reactor inlet is less than 1.2 relative to 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) in components obtained from the reactor outlet.
这项发明提供了一种能够高效生产
2,3,3,3-四氟丙烯(HFO-1234yf)的方法,其中使用基本上只有一个反应步骤的循环步骤。一种生产
2,3,3,3-四氟丙烯(HFO-1234yf)的方法,包括以下步骤:将至少一种
氯含量起始化合物与
氟化剂反应,所述
氯含量起始化合物选自以下群体:由式(1)表示的
氯含量
烷烃:CX2YCHClCH2Z(其中X、Y和Z独立地表示H、F或Cl)和由式(2)表示的
氯含量烯烃:CX2YCCl═
CZ2(其中X、Y和Z独立地表示H、F或Cl),其中相对于从反应器出口获得的组分中的2-
氯-
3,3,3-三氟丙烯(HCFO-1233xf),由式(1)或(2)表示的
氯含量起始化合物新供给到反应器入口的摩尔比小于1.2。