Method of making 2,3,3,3-tetrafluoro-2-propene

The invention relates to a method of making 2,3,3,3-tetrafluoro-2-propene, and specifically discloses a process for the manufacture of 1234yf from 1,1,2,3-tetrachloro-propene, abbreviated herein as ''TCP'', in three integrated steps: (a) the R-1 hydrofluorination of TCP to form 1233xf in the vapor phase; (b) the R-2 hydrofluorination of 1233xf to form 244bb in either the liquid phase or in the liquid phase followed by the vapor phase; and (c) the R-3 dehydrochlorination of the 244bb in either the liquid or the vapor phase to produce 1234yf, wherein the vapor phase hydrofluorination of TCP in step (a) is carried out at a lower pressure than the liquid phase hydrofluorination of 123xf, and wherein the HCl generated during these steps is scrubbed with water to form an acid solution and the organic components are scrubbed with a caustic solution and then dried before further processing. 本发明涉及制备2,3,3,3-四氟-2-丙烯的方法，具体公开了以整合的三个步骤由1,1,2,3-四氯-丙烯(本文简称为"TCP")制造1234yf的方法：(a)在气相中对TCP进行R-1氢氟化以形成1233xf；(b)在液相中或者在液相中随后在气相中对12