AZEOTROPIC COMPOSITION CONTAINING 1,2-DIFLUOROETHYLENE OR 1,1,2-TRIFLUOROETHYLENE AND HYDROGEN FLUORIDE

    公开(公告)号:EP3919467A1

    公开(公告)日:2021-12-08

    申请号:EP20748120.1

    申请日:2020-01-27

    IPC分类号: C07C21/18 C07C17/383

    摘要: This invention provides a novel azeotrope-like composition and a separation method using the composition. The invention provides an azeotrope-like composition comprising 1,2-difluoroethylene (HFO-1132) and hydrogen fluoride; an azeotrope-like composition comprising 1,1,2-trifluoroethylene (HFO-1123) and hydrogen fluoride; and a separation method of a composition comprising hydrogen fluoride and at least one member selected from the group consisting of trans-1,2-difluoroethylene (HFO-1132(E)), cis-1,2-difluoroethylene (HFO-1132(Z)), and 1,1,2-trifluoroethylene (HFO-1123).

    FLUOROETHANE PRODUCTION METHOD AND FLUOROOLEFIN PRODUCTION METHOD

    公开(公告)号:EP3915968A1

    公开(公告)日:2021-12-01

    申请号:EP20746006.4

    申请日:2020-01-24

    摘要: Provided are a method for producing a fluoroethane, which is the desired product, with high selectivity; and a method for producing a fluoroolefin. The production method according to the present disclosure comprises obtaining a product comprising a fluoroethane represented by CX 1 X 2 FCX 3 X 4 X 5 (wherein X 1 , X 2 , X 3 , X 4 , and X 5 are the same or different and each represents a hydrogen atom, a fluorine atom, or a chlorine atom; and at least one of X 1 , X 2 , X 3 , X 4 , and X 5 represents a hydrogen atom) from a fluoroethylene by a reaction in the presence of at least one catalyst in at least one reactor. The reaction is performed by introducing a starting material gas comprising the fluoroethylene into the reactor, and the water content in the starting material gas is 150 ppm by mass or less based on the total mass of the starting material gas.

    METHOD FOR PURIFYING HEXAFLUOROBUTADIENE
    74.
    发明公开

    公开(公告)号:EP3904320A1

    公开(公告)日:2021-11-03

    申请号:EP19903555.1

    申请日:2019-12-20

    IPC分类号: C07C21/20 C07C17/389

    摘要: The present disclosure aims to purify hexafluorobutadiene to a high purity while inhibiting isomerization of hexafluorobutadiene.
    A method for purifying hexafluorobutadiene, comprising bringing a composition containing hexafluorobutadiene into contact with a zeolite having an SiO 2 /Al 2 O 3 ratio of 4.0 to 8.0.