Method for producing a polyfluoropropionyl halide
    1.
    发明授权
    Method for producing a polyfluoropropionyl halide 失效
    多氟丙酰卤的制造方法

    公开(公告)号:US5663543A

    公开(公告)日:1997-09-02

    申请号:US424391

    申请日:1995-05-01

    IPC分类号: C07C51/58 C07B39/00

    CPC分类号: C07C51/58

    摘要: A method for producing a polyfluoropropionyl halide, which is characterized by oxidizing at least one dichloropentafluoropropane selected from 3,3-dichloro-1,1,1,2,2-pentafluoropropane and 1,3-dichloro-1,1,2,2,3-pentafluoropropane by oxygen under irradiation with light and in the presence of chlorine.The polyfluoropropionyl halide can be obtained from the dichloropentafluoropropane industrially advantageously in good yield. Further, in a gas phase reaction, the polyfluoropropionyl halide can be obtained in a very high reaction yield without decomposition of the desired product and without corrosion of the material for the reactor or the glass for the light source portion even in a reaction for a long period of time.

    摘要翻译: PCT No.PCT / JP94 / 01434 Sec。 371日期:1995年5月1日 102(e)日期1995年5月1日PCT 1994年8月31日PCT PCT。 公开号WO95 / 06629 日期:1995年3月9日制备多氟丙酰卤的方法,其特征在于氧化至少一种选自3,3-二氯-1,1,1,2,2-五氟丙烷和1,3-二氯-1,2-二氯-1-五氟丙烷的二氯五氟丙烷, 在光照和氯存在下,用氧气将1,2,2,3-五氟丙烷除去。 多氟丙酰卤可以在工业上有利地以良好的收率由二氯五氟丙烷获得。 此外,在气相反应中,即使在长时间的反应中,也可以以非常高的反应收率获得多氟丙酰卤,而不会分解所需产物,并且即使在长时间的反应中也不会使用于反应器的材料或光源部分的玻璃 一段的时间。

    Method for producing dichloropentafluoropropanes
    4.
    发明授权
    Method for producing dichloropentafluoropropanes 失效
    二氯五氟丙烷的制备方法

    公开(公告)号:US06191327B1

    公开(公告)日:2001-02-20

    申请号:US08157429

    申请日:1993-11-26

    IPC分类号: C07C2118

    摘要: The present invention relates to a simple method for producing 3,3-dichloro-1,1,1,2,2-pentafluoropropane (R225ca) and 1,3-dichloro-1,1,2,2,3-pentafluoropropane (R225cb) in good yield and at high selectivity by reacting tetrafluoroethylene (C2F4) and dichlorofluoromethane (R21) in the presence of a certain specific catalyst. The specific catalyst in the present invention is (1) a catalyst comprising halogenated oxide containing at least one element of Group 4, Group 5 and Group 13 such as Ti, Zr, Hf, V, B and Ga, or (2) a catalyst comprising halogenated oxide containing at least one element selected from Group 4, Group 5 and Group 13 such as Ti, Zr, Hf, V, B, Al and Ga and at least one element selected from Group 2, Group 6, Group 12 and Group 14 such as Ba, W, Zn, Si, Bi and P.

    摘要翻译: 本发明涉及制备3,3-二氯-1,1,1,2,2-五氟丙烷(R225ca)和1,3-二氯-1,1,2,2,3-五氟丙烷(R225cb)的简单方法 ),在一定的特定催化剂存在下,通过四氟乙烯(C 2 F 4)和二氯氟甲烷(R 21)的反应以高选择性。本发明中的具体催化剂是(1)包含含有至少一种元素 第4族,第5族和第13族如Ti,Zr,Hf,V,B和Ga,或(2)包含选自第4族,第5族和第13族中的至少一种元素的卤代氧化物的催化剂, Zr,Hf,V,B,Al和Ga以及选自组2,组6,组12和组14中的至少一种元素如Ba,W,Zn,Si,Bi和P.

    Method of treating 1,1,1,3,3-pentafluoropropane
    6.
    发明授权
    Method of treating 1,1,1,3,3-pentafluoropropane 失效
    处理1,1,1,3,3-五氟丙烷的方法

    公开(公告)号:US06414203B1

    公开(公告)日:2002-07-02

    申请号:US09830061

    申请日:2001-05-09

    IPC分类号: C07C1738

    摘要: A method for reducing the content of unsaturated impurities contained in 1,1,1,3,3-pentafluoropropane (R245fa), while maintaining the loss of R245fa at a minimum level. R245fa containing unsaturated impurities is contacted in a gas phase with chlorine gas in the presence of an activated carbon catalyst, thereby converting the unsaturated impurities to the chlorine addition compounds to reduce the content of the unsaturated impurities.

    摘要翻译: 一种降低1,1,1,3,3-五氟丙烷(R245fa)中所含的不饱和杂质含量的方法,同时将R245fa的损失保持在最低水平。 含有不饱和杂质的R245fa在活性炭催化剂的存在下与气相在气相中接触,从而将不饱和杂质转化为氯加成化合物以降低不饱和杂质的含量。

    Method for producing a hydrogen-containing fluorinated alkane
    8.
    发明授权
    Method for producing a hydrogen-containing fluorinated alkane 失效
    含氢氟化烷烃的制造方法

    公开(公告)号:US6124511A

    公开(公告)日:2000-09-26

    申请号:US902969

    申请日:1997-07-30

    IPC分类号: C07C17/20 C07C17/21 C07C17/08

    CPC分类号: C07C17/21 C07C17/206

    摘要: A method for producing a hydrogen-containing fluorinated alkane, which comprises fluorinating at least one halogenated hydrocarbon selected from a chlorinated ethylene and a hydrogen-containing chlorinated alkane by hydrogen fluoride in the presence of a fluorination catalyst, in a reaction system where a corrosion-resistant metal material containing at least 10 wt % of aluminum, is present.

    摘要翻译: 一种含氟氟化烷烃的制造方法,其特征在于,在氟化催化剂存在下,通过氟化氢将选自氯化乙烯和含氢氯化烷烃中的至少一种卤代烃氟化, 存在含有至少10重量%的铝的耐金属材料。