公开(公告)号：EP3325437A1

公开(公告)日：2018-05-30

申请号：EP16750477.8

申请日：2016-07-14

申请人： Mexichem Fluor S.A. de C.V.

发明人： HODGSON, Emma Jayne ,  MURRAY, James Henry ,  LLOYD, Gary

IPC分类号： C07C17/38 ,  C07C21/18

CPC分类号： C07C17/38 ,  C07C21/18

摘要： The present invention provides a method for purifying a fluid comprising a first drying stage which comprises contacting a first fluid stream comprising one or more hydro(chloro)fluoroolefins and water with a source of sulphuric acid to produce a first treated fluid stream comprising the hydro(chloro)fluoroolefin(s) and a first spent sulphuric acid stream, wherein the first treated fluid stream comprises a lower concentration of water than the first fluid stream.

公开(公告)号：EP4214291A1

公开(公告)日：2023-07-26

申请号：EP21778531.0

申请日：2021-09-09

申请人： Mexichem Fluor S.A. de C.V.

发明人： SHARRATT, Andrew ,  LLOYD, Gary ,  LOW, Robert

IPC分类号： C09K5/04 ,  C09K5/10 ,  G06F1/20 ,  H01L23/473 ,  H01M10/656 ,  H01M10/6567 ,  H01M10/6569 ,  H05K7/20

公开(公告)号：EP3705468A1

公开(公告)日：2020-09-09

申请号：EP20172163.6

申请日：2016-07-14

申请人： Mexichem Fluor S.A. de C.V.

发明人： HODGSON, Emma Jayne ,  MCGUINNESS, Claire Elizabeth ,  GIDDIS, Clive Robert ,  MURRAY, James Henry ,  SKAE, Clare Mary ,  LLOYD, Gary

IPC分类号： C07C17/25 ,  C07C17/35 ,  C09K5/04 ,  C07C21/18 ,  C07C19/10

摘要： The present invention provides azeotropic or near-azeotropic compositions comprising HF and 253fb.

公开(公告)号：EP3325436A1

公开(公告)日：2018-05-30

申请号：EP16750475.2

申请日：2016-07-14

申请人： Mexichem Fluor S.A. de C.V.

发明人： HODGSON, Emma Jayne ,  MCGUINNESS, Claire Elizabeth ,  GIDDIS, Clive Robert ,  MURRAY, James Henry ,  SKAE, Clare Mary ,  LLOYD, Gary

IPC分类号： C07C17/25 ,  C07C17/35 ,  C07C19/10 ,  C07C21/18

CPC分类号： C07C17/25 ,  C07C17/35 ,  C07C19/10 ,  C07C21/18

摘要： The present invention provides a process for preparing 3,3,3-trifluoropropene (1243zf), the process comprising: (a) fluorinating CCI3CH2CH2Cl (250fb) to produce a reaction product comprising CF3CH2CH2Cl (253fb) in the liquid phase in a first reactor, using HF as the fluorinating agent; and (b)(i) dehydrohalogenating 253fb to produce 1243y1 in the vapour phase in the present of a catalyst in a second reactor; or (b)(ii) dehydrohalogenating 253fb to produce 1243zf in a second reactor, wherein the reaction product comprising 253fb produced in step (a) has subjected to one or more purification steps before step (b). Step (a) may be conducted in the presence of a polymerisation inhibitor and/or retarder, preferably a cyclic ketone such as cyclobutanone or cyclohexanone. Preferred catalysts for step (b) comprise activated carbon, alumina, chromia, zinc/chromia, Pd/carbon, Pt/carbon, Au/carbon, Pd/alumina, Ni/alumina, Pt/alumina, Cr/alumina or Zn/chromia. The present invention also provides an azeotropic or near-azeotropic composition comprising HF and 253fb.