METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS
    3.
    发明申请
    METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS 审中-公开
    生产氟化有机化合物的方法

    公开(公告)号:WO2007079431A8

    公开(公告)日:2008-08-21

    申请号:PCT/US2007000056

    申请日:2007-01-03

    Abstract: Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF 3 CF=CH 2 (1234yf). Three steps may be used in preferred embodiments in which a feedstock such as CCI 2 =CCICH 2 CI (which may be purchased or synthesized from 1,2,3- trichloropropane) is fluorinated (preferably with HF in gas-phase in the presence of a catalyst) to synthesize a compound such as CFaCCl=CH2, preferably in a 80-96% selectivity. The CF 3 CCl=CH 2 is preferably converted to CF 3 CFClCH 3 (244-isomer) using a SbCl 5 as the catalyst which is then transformed selectively to 1234yf, preferably in a gas-phase catalytic reaction using activated carbon as the catalyst. For the first step, a mixture Of Cr2O3 and FeCl 3 /C is preferably used as the catalyst to achieve high selectivity to CF 3 CCl=CH 2 (96%). In the second step, SbCl 5 /C is preferably used as the selective catalyst for transforming 1233xf to 244-isomer, CF 3 CFClCH 3 . The intermediates are preferably isolated and purified by distillation and used in the next step without further purification, preferably to a purity level of greater than about 95%.

    Abstract translation: 公开了用于生产氟化烯烃的方法,优选适于CF 3 CH 2 CH 2(1234yf)的商业化。 优选实施方案中可以使用三个步骤,其中诸如CCI 2 = CCICH 2 Cl(其可以从1,2,3-三氯丙烷购买或合成) 被氟化(优选在催化剂存在下在气相中用HF)合成化合物如CFaClCl = CH 2,优选为80-96%的选择性。 CF 3 3 CCl = CH 2 2优选使用以下化合物转化为CF 3 CFClCH 3(244-异构体) SbCl 5作为催化剂,然后将其选择性地转化为1234yf,优选在使用活性炭作为催化剂的气相催化反应中进行。 对于第一步,优选使用Cr 2 O 3和FeCl 3/3的混合物作为催化剂,以实现对CF 3 CCl = CH 2 / (96%)。 在第二步中,优选使用SbCl 5 / C作为将1233xf转化为244-异构体CF 3 CFClCH 3的选择性催化剂。 中间体优选通过蒸馏分离和纯化,并且用于下一步骤而不进一步纯化,优选纯度高于约95%。

    PROCESSES FOR SYNTHESIS OF 1,3,3,3-TETRAFLUOROPROPENE
    6.
    发明申请
    PROCESSES FOR SYNTHESIS OF 1,3,3,3-TETRAFLUOROPROPENE 审中-公开
    合成1,3,3,3-四氯丙烯的方法

    公开(公告)号:WO2005108333A1

    公开(公告)日:2005-11-17

    申请号:PCT/US2005/014950

    申请日:2005-04-29

    Abstract: 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).

    Abstract translation: 公开了合成1,3,3,3-四氟丙烯的方法,其在一个实施方案中包括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,溴和碘组成的组,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; 当X3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,其包括热裂化一种或多种能够产生反应混合物的化合物,所述化合物优选包含二氟丙烯基和偏二氟乙烯,并将所述反应混合物转化为四氟丙烯(1,3,3,3-四氟丙烯)。

    PROCESS FOR THE PREPARATION OF PERFLUORINATED CIS-ALKENE
    10.
    发明申请
    PROCESS FOR THE PREPARATION OF PERFLUORINATED CIS-ALKENE 审中-公开
    制备全氟化苯乙烯的方法

    公开(公告)号:WO2010014548A2

    公开(公告)日:2010-02-04

    申请号:PCT/US2009051847

    申请日:2009-07-27

    CPC classification number: C07C21/18 B01J23/58 B01J23/628 C07C17/354

    Abstract: A process for the preparation of perfluorinated cis-alkene comprising: reducing a perfluorinated alkyne with hydrogen over a palladium catalyst in the presence of a non-aromatic amine catalyst modifier to form a product which comprises a perfluorinated cis-alkene, wherein the perfluorinated alkyne has the general structure: RfC=CRf wherein Rf is a perfluorinated alkyl group having a carbon number in the range between about 1 to 6.

    Abstract translation: 一种制备全氟化顺式烯烃的方法,包括:在非芳族胺催化剂改性剂存在下,用钯催化剂,用氢还原全氟化炔烃以形成包含全氟化顺式 - 烯烃的产物,其中全氟化炔烃具有 一般结构:RfC = CRf其中Rf是碳数在约1至6之间的全氟化烷基。

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