摘要 |
<p>The present invention relates, in part, an improved process for the production of certain hydrofluoroolefins, particularly 2,3,3,3-tetrafluoropropene (1234yf). In certain non-limiting embodiments, the invention relates to methods for improving process efficiency during the fluorination of 1,1,2,3-tetrachloropropene, 2,3,3,3-tetrachloropropene, and/or 1,1,1,2,3-pentachloropropane to 2-chloro-3,3,3-trifluoropropene by separating and recycling unreacted HF, unreacted starting materials, and/or certain process intermediates from the 2-chloro-3,3,3-trifluoropropene product stream.</p> |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
WANG, HAIYOU;BEKTESEVIC, SELMA;TUNG, HSUEH S.;KOPKALLI, HALUK;CHIU, YUON |