公开(公告)号：WO2018085512A2

公开(公告)日：2018-05-11

申请号：PCT/US2017/059679

申请日：2017-11-02

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： WANG, Haiyou ,  TUNG, Hsueh Sung ,  PEREZ, Willie Josue ,  ZHAI, Yian ,  BOROWSKI, Ralph John ,  TU, Fang Huang ,  LABUDA, Lucas Peter ,  WELCH, John L.

IPC: C07C17/42 ,  C07C21/185 ,  C07C21/22

Abstract: The invention relates to a process for reducing the concentration of a fluorinated alkyne impurity, such as 3,3,3-trifluoropropyne (TFPY), in 2,3,3,3-tetrafluoropropene (HFO-1234yf) which comprises contacting such a mixture with a caustic material, such as sodium hydroxide (NaOH), under conditions effective to reduce the concentration of the fluorinated alkyne impurity, including in some practices reducing the concentration by at least about 50%.

Abstract translation: 本发明涉及一种降低2,3,3,3-四氟丙烯（HFO-1）中氟化炔杂质如3,3,3-三氟丙炔（TFPY）浓度的方法， 该方法包括在有效降低氟化炔烃杂质浓度的条件下，使这种混合物与苛性物质如氢氧化钠（NaOH）接触，包括在某些实践中将浓度降低至少约50％ p>

公开(公告)号：WO2018085512A3

公开(公告)日：2018-05-11

申请号：PCT/US2017/059679

申请日：2017-11-02

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： WANG, Haiyou ,  TUNG, Hsueh Sung ,  PEREZ, Willie Josue ,  ZHAI, Yian ,  BOROWSKI, Ralph John ,  TU, Fang Huang ,  LABUDA, Lucas Peter ,  WELCH, John L.

IPC: C07C17/42 ,  C07C21/185 ,  C07C21/22

Abstract: The invention relates to a process for reducing the concentration of a fluorinated alkyne impurity, such as 3,3,3-trifluoropropyne (TFPY), in 2,3,3,3-tetrafluoropropene (HFO-1234yf) which comprises contacting such a mixture with a caustic material, such as sodium hydroxide (NaOH), under conditions effective to reduce the concentration of the fluorinated alkyne impurity, including in some practices reducing the concentration by at least about 50%.