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    CATALYTIC CONVERSION OF HYDROFLUOROALKANOL TO HYDROFLUOROALKENE
    2.
    发明公开
    CATALYTIC CONVERSION OF HYDROFLUOROALKANOL TO HYDROFLUOROALKENE 有权
    氢氟烯烃催化转化为氢氟烯烃

    公开(公告)号：EP1828083A2

    公开(公告)日：2007-09-05

    申请号：EP05853260.7

    申请日：2005-12-09

    申请人： Honeywell International Inc.

    发明人： MUKHOPADHYAY, Sudip ,  NAIR, Haridasan, K. ,  TUNG, HsuehSung

    IPC分类号： C07C17/00 ,  C07C21/18

    CPC分类号： C07C17/00 ,  C07C17/25 ,  C07C21/18

    摘要： Methane is used as the selective dehydrating agent for the production of 2,3,3,3-tetrafluoro-l-propene (R1234yf) from 2,2,3,3,3-pentafluoro-l-propanol. Supported transition metal catalysts are prepared and used for this reaction with high activity. Almost 58% selectivity to R1234yf is obtained at an alcohol conversion level of 60% using unsupported Ni-mesh as the catalyst. Pd and Pt show almost similar level of conversion; however, the selectivity to the desired product is low. The activity of the metal catalyst was found to be a function of the type of support material, activated carbon showing better activity than alumina. Different important process parameters such as temperature, pressure, and contact time are studied to optimize the process. High pressure and temperature are deleterious to the rate of 1234yf formation; yet, the highest yield to 1234yf is obtained while performing a reaction at 494°C with a contact time of 23 sec.

    摘要翻译： 甲烷被用作从2,2,3,3,3-五氟-1-丙醇生产2,3,3,3-四氟-1-丙烯（R1234yf）的选择性脱水剂。 制备负载型过渡金属催化剂并用于具有高活性的该反应。 使用无载体镍网作为催化剂，在醇转化率为60％时，对R1234yf的选择性几乎达到58％。 Pd和Pt显示几乎相似的转化水平; 然而，对所需产品的选择性很低。 发现金属催化剂的活性是载体材料类型的函数，活性炭表现出比氧化铝更好的活性。 研究了不同的重要工艺参数，如温度，压力和接触时间，以优化工艺。 高压和高温对1234yf形成的速率是有害的; 然而，当在494℃和23秒的接触时间下进行反应时获得1234yf的最高产率。

    CATALYTIC CONVERSION OF HYDROFLUOROALKANOL TO HYDROFLUOROALKENE
    3.
    发明授权
    CATALYTIC CONVERSION OF HYDROFLUOROALKANOL TO HYDROFLUOROALKENE 有权
    HYDROFLUORALKANOL作者HYDROFLUORALKEN催化转化

    公开(公告)号：EP1828083B1

    公开(公告)日：2010-09-15

    申请号：EP05853260.7

    申请日：2005-12-09

    申请人： Honeywell International Inc.

    发明人： MUKHOPADHYAY, Sudip ,  NAIR, Haridasan, K. ,  TUNG, HsuehSung

    IPC分类号： C07C17/00 ,  C07C21/18

    CPC分类号： C07C17/00 ,  C07C17/25 ,  C07C21/18

    摘要： Methane is used as the selective dehydrating agent for the production of 2,3,3,3-tetrafluoro-l-propene (R1234yf) from 2,2,3,3,3-pentafluoro-l-propanol. Supported transition metal catalysts are prepared and used for this reaction with high activity. Almost 58% selectivity to R1234yf is obtained at an alcohol conversion level of 60% using unsupported Ni-mesh as the catalyst. Pd and Pt show almost similar level of conversion; however, the selectivity to the desired product is low. The activity of the metal catalyst was found to be a function of the type of support material, activated carbon showing better activity than alumina. Different important process parameters such as temperature, pressure, and contact time are studied to optimize the process. High pressure and temperature are deleterious to the rate of 1234yf formation; yet, the highest yield to 1234yf is obtained while performing a reaction at 494°C with a contact time of 23 sec.

    PROCESSES FOR SYNTHESIS OF 1,3,3,3-TETRAFLUOROPROPENE
    7.
    发明公开
    PROCESSES FOR SYNTHESIS OF 1,3,3,3-TETRAFLUOROPROPENE 有权
    合成1,3,3,3-四氟丙烯的方法

    公开(公告)号：EP1740521A1

    公开(公告)日：2007-01-10

    申请号：EP05744032.3

    申请日：2005-04-29

    申请人： Honeywell International Inc.

    发明人： TUNG, Hsueh, S. ,  NAIR, Haridasan, K. ,  MUKHOPADHYAY, Sundip ,  VAN DER PUY, Michael ,  MA, Jing Ji

    IPC分类号： C07C21/18 ,  C07C17/269 ,  C07C17/272 ,  C07C17/358

    CPC分类号： C07C17/206 ,  C07C17/00 ,  C07C17/26 ,  C07C17/269 ,  C07C17/272 ,  C07C17/278 ,  C07C21/18

    摘要： Disclosed is a process for the synthesis of 1,3,3,3-tetrafluoropropene which comprises, in one embodiment, reacting a compound of CF3X1 with a compound of CX2H=CHX3, wherein X1, X2, and X3 are each independently selected from the group consisting of fluorine, chlorine, bromine and iodine, to produce a reaction product comprising a compound of CF3CH=CHX3, wherein X3 is as described above; and when X3 is not fluorine, fluorinating the compound to produce 1,3,3,3-tetrafluoropropene. The process in another embodiment comprises preparing tetrafluoropropene comprising thermally cracking one or more compounds capable of producing a reaction mixture which preferably comprises diflurocarbene radicals and vinylidene fluoride, and converting said reaction mixture into -tetrafluoropropene (1,3,3,3-tetrafluoropropene).

    摘要翻译： 公开了合成1,3,3,3-四氟丙烯的方法，在一个实施方案中，其包括使CF 3 X 1的化合物与CX 2 H = CHX 3的化合物反应，其中X 1，X 2和X 3各自独立地选自 由氟，氯，溴和碘组成的基团，以产生包含CF 3 CH = CHX 3的化合物的反应产物，其中X 3如上所述; 并且当X 3不是氟时，氟化该化合物以产生1,3,3,3-四氟丙烯。 在另一个实施方案中的方法包括制备四氟丙烯，包括热裂解一种或多种能够产生反应混合物的化合物，所述反应混合物优选包含二氟卡宾基团和偏二氟乙烯，并且将所述反应混合物转化为四氟丙烯（1,3,3,3-四氟丙烯）。