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6440 条记录 (耗时 0.027 秒)

    CO-PRODUCTION METHOD FOR 2,3,3,3-TETRAFLUOROPROPYLENE AND TRANS-1,3,3,3-TETRAFLUOROPROPYLENE
    106.
    发明公开
    CO-PRODUCTION METHOD FOR 2,3,3,3-TETRAFLUOROPROPYLENE AND TRANS-1,3,3,3-TETRAFLUOROPROPYLENE 审中-公开

    公开(公告)号：EP3699164A1

    公开(公告)日：2020-08-26

    申请号：EP18868205.8

    申请日：2018-06-25

    申请人： Zhejiang Quhua Fluor-Chemistry Co Ltd

    发明人： HONG, Jiangyong ,  YANG, Bo ,  OU, Yanghao ,  ZHANG, Yan ,  ZHAO, Yang

    IPC分类号： C07C17/20 ,  C07C21/18 ,  B01J23/26

    摘要： Disclosed is a method for co-producing 2,3,3,3-tetrafluoropropene and trans-1,3,3,3-tetrafluoropropene, preheating a mixture of 1,1,1,2,2-pentachloropropane and 1,1,1,3,3-pentachloropropane together with anhydrous hydrogen fluoride and simultaneously introducing into a first reactor (2) to react in the presence of a catalyst La 2 O 3 -Cr 2 O 3 to obtain a first reactor product; directly introducing the first reactor product into a second reactor (3) without separation, and carrying out a catalytic fluorination reaction in the presence of a catalyst Ga 2 O 3 -Y 2 O 3 -Cr 2 O 3 to obtain a second reactor product; and separating the second reactor product to obtain the products of 2,3,3,3-tetrafluoropropene and trans-1,3,3,3-tetrafluoropropene. The invention has such advantages that the process is simple and less equipment investment is required; used catalysts have good activity, high selectivity and long total life; and the ratio of the two products can be flexibly adjusted according to market demands.

    NEW PROCESS FOR THE MANUFACTURE OF FLUOROARYL COMPOUNDS AND DERIVATIVES
    107.
    发明公开
    NEW PROCESS FOR THE MANUFACTURE OF FLUOROARYL COMPOUNDS AND DERIVATIVES 审中-公开

    公开(公告)号：EP3696156A1

    公开(公告)日：2020-08-19

    申请号：EP19195392.6

    申请日：2019-09-04

    申请人： Fujian Yongjing Technology Co., Ltd.

    发明人： CUI, Weilong ,  Du, Hongjun ,  Wu, Wenting

    IPC分类号： C07C17/20 ,  C07C201/12

    摘要： The invention relates to a new process for the manufacture of fluoroaryl compounds and derivatives thereof, in particular offluorobenzenes and derivatives thereof, and especially wherein said manufacture relates to an environmentally friendly production of the said compounds. Thus, the present invention overcomes the disadvantages of the prior art processes, and in a surprisingly simple and beneficial manner, and as compared to the prior art processes, in particular, the invention provides a more efficient and energy saving processes, and also provides a more environmentally friendly process, for the manufacture of nuclear fluorinated aromatics, and preferably of nuclear fluorinated fluorobenzenes. Accordingly, in one aspect of the invention, an industrially beneficial process for preparing fluorobenzenes from halobenzene precursors using HF to form hydrogen halide is provided by the present invention. In addition, the invention provides for a beneficial and surprisingly simple use of chlorobenzene as an industrially interesting starting material in the manufacture of fluorobenzene, which use of chlorobenzene was not known in the prior art before the present invention.

    METHOD FOR CO-PRODUCING VARIOUS HALOGENATED OLEFINS AND FLUOROALKANES
    108.
    发明公开
    METHOD FOR CO-PRODUCING VARIOUS HALOGENATED OLEFINS AND FLUOROALKANES 审中-公开

    公开(公告)号：EP3680225A1

    公开(公告)日：2020-07-15

    申请号：EP18854525.5

    申请日：2018-06-25

    申请人： Zhejiang Quhua Fluor-Chemistry Co., Ltd.

    发明人： HONG, Jiangyong ,  YANG, Bo ,  ZHANG, Yan ,  YU, Guojun ,  ZHAO, Yang ,  OU, Yanghao ,  GONG, Haitao

    IPC分类号： C07C17/087 ,  C07C17/20 ,  C07C17/358 ,  C07C17/383 ,  C07C19/08 ,  C07C21/18 ,  B01J23/26

    摘要： Disclosed is a method for co-producing various alkenyl halides and hydrofluoroalkanes: cis-1-chloro-3,3,3-trifluoropropene is introduced into a first reactor (1) to carry out an isomerization reaction in the presence of a first catalyst, and the reaction product is rectified to obtain a product trans-1-chloro-3,3,3-trifluoropropene; and 30-70wt% of trans-1-chloro-3,3,3 -trifluoropropene and hydrogen fluoride are mixed and then introduced into a second reactor (3) to carry out a reaction in the presence of a second catalyst to obtain a second reactor reaction product; the second reactor reaction product is introduced into a phase separator (4) for separation, and the obtained organic phase is rectified to obtain the products trans-1,3,3,3-tetrafluoropropene, cis-1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane. The invention has the advantages of simple process, high efficiency, high operaion flexibility, less investment and low energy consumption.