| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for separating halocarbons. SOLUTION: The method separates, in particular, 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) from 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) based on the difference in the melting points of the two compounds. More particularly, the method separates HCFC-244bb from HCFO-1233xf which is useful as an intermediate in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf). COPYRIGHT: (C)2010,JPO&INPIT |
