公开(公告)号：US20230391696A1

公开(公告)日：2023-12-07

申请号：US18209652

申请日：2023-06-14

申请人： DAIKIN INDUSTRIES, LTD.

发明人： Tatsuya TAKAKUWA ,  Tomo OTSUKA ,  Atsushi NOGUCHI ,  Yuuta HASUMOTO

IPC分类号： C07C17/281

CPC分类号： C07C17/281

摘要： The present disclosure provides a method for producing a reaction gas containing 1,1,2-trifluoroethane (R-143) and/or (E,Z)-1,2-difluoroethylene (R-1132(E,Z)) using a starting material that is easier to obtain than those used in conventional methods. Specifically, the present disclosure provides a method for producing a reaction gas containing 1,1,2-trifluoroethane (R-143) and/or (E,Z)-1,2-difluoroethylene (R-1132(E,Z)), the method comprising subjecting a starting material gas containing difluoromethane (R-32) to a reaction that involves thermal decomposition at a pressure of 0.6 MPaG or more and 2.0 MPaG or less and a temperature of 600° C. or more and 1000° C. or less, thereby obtaining the reaction gas.

公开(公告)号：US20220089513A1

公开(公告)日：2022-03-24

申请号：US17544109

申请日：2021-12-07

申请人： DAIKIN INDUSTRIES, LTD.

发明人： Tomo OTSUKA ,  Tsubasa NAKAUE ,  Kazuhiro TAKAHASHI

IPC分类号： C07C17/358 ,  C07C17/383

摘要： A method for efficiently obtaining trans-1-halo-2-fluoroethylene (E-isomer) and/or cis-1-halo-2-fluoroethylene (Z-isomer) is provided. The method for producing trans-1-halo-2-fluoroethylene (E-isomer) and/or cis-1-halo-2-fluoroethylene (Z-isomer) includes supplying a composition containing trans-1-halo-2-fluoroethylene (E-isomer) and/or cis-1-halo-2-fluoroethylene (Z-isomer) to a reactor to perform isomerization between the trans-1-halo-2-fluoroethylene (E-isomer) and the cis-1-halo-2-fluoroethylene (Z-isomer) in a liquid phase by performing light irradiation in the presence of a photosensitizer.