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    • 1. 发明专利
    • DE69829678D1
    • 2005-05-12
    • DE69829678
    • 1998-09-17
    • CENTRAL GLASS CO LTDZEON CORP
    • KOMATA TAKEONISHIMIYA TAKAYUKISAKYU FUYUHIKOIMURA HIDEAKIUJIIE MIKIOKANAI MASATOMI
    • C07B61/00C07C17/20C07C17/21B01J27/132C07C23/08
    • The invention relates to a method for producing a first perhalogenated cyclopentene represented by the general formula: C5ClBF8-B where B is an integer of from 0 to 7. The method includes a step of (a) fluorinating a second perhalogenated cyclopentene by hydrogen fluoride in a gas phase in the presence of a fluorination catalyst. The second perhalogenated cyclopentene is represented by general formula: C5ClAF8-A where A is an integer of from 1 to 8, and A is not smaller than B. With this method, the first perhalogenated cyclopentene (e.g., 1,2-dichloro-3,3,4,4,5,5-hexafluorocyclopentene, another chlorofluorinated cyclopentene, or octafluorocyclopentene) can continuously easily be produced, for example, from octachlorocyclopentene obtained by chlorination of hexachlorocyclopentadiene that is easily available. Therefore, the above method is very useful as an industrial scale production method. In case that the first perhalogenated cyclopentene is octafluorocyclopentene, the method may further include a step of (b) fluorinating a reaction product of the step (a) in a way that is different from that of the step (a), thereby to convert said reaction product of the step (a) into octafluoropentene. The step (a) may be conducted by a multistep reaction wherein there are provided "m" of reaction zones in number where m is an integer of from 2 to 10. In this case, the reaction zones are arranged in series and such that a reaction temperature of each reaction zone is independently controllable.
    • 2. 发明专利
    • DE69829678T2
    • 2006-03-09
    • DE69829678
    • 1998-09-17
    • CENTRAL GLASS CO LTDZEON CORP
    • KOMATA TAKEONISHIMIYA TAKAYUKISAKYU FUYUHIKOIMURA HIDEAKIUJIIE MIKIOKANAI MASATOMI
    • B01J27/132C07B61/00C07C17/20C07C17/21C07C23/08
    • The invention relates to a method for producing a first perhalogenated cyclopentene represented by the general formula: C5ClBF8-B where B is an integer of from 0 to 7. The method includes a step of (a) fluorinating a second perhalogenated cyclopentene by hydrogen fluoride in a gas phase in the presence of a fluorination catalyst. The second perhalogenated cyclopentene is represented by general formula: C5ClAF8-A where A is an integer of from 1 to 8, and A is not smaller than B. With this method, the first perhalogenated cyclopentene (e.g., 1,2-dichloro-3,3,4,4,5,5-hexafluorocyclopentene, another chlorofluorinated cyclopentene, or octafluorocyclopentene) can continuously easily be produced, for example, from octachlorocyclopentene obtained by chlorination of hexachlorocyclopentadiene that is easily available. Therefore, the above method is very useful as an industrial scale production method. In case that the first perhalogenated cyclopentene is octafluorocyclopentene, the method may further include a step of (b) fluorinating a reaction product of the step (a) in a way that is different from that of the step (a), thereby to convert said reaction product of the step (a) into octafluoropentene. The step (a) may be conducted by a multistep reaction wherein there are provided "m" of reaction zones in number where m is an integer of from 2 to 10. In this case, the reaction zones are arranged in series and such that a reaction temperature of each reaction zone is independently controllable.
    • 3. 发明专利
    • Method for producing octafluorocyclopentene
    • 生产OCTAFLOOCOCOCOPENTENE的方法
    • JP2006151998A
    • 2006-06-15
    • JP2006049387
    • 2006-02-24
    • Central Glass Co LtdNippon Zeon Co Ltdセントラル硝子株式会社日本ゼオン株式会社
    • KOMATA TAKEONISHINOMIYA TAKAYUKISAKU FUYUHIKOIMURA HIDEAKIUJIIE MIKIOKANAI MASATOMI
    • C07C17/20B01J27/08B01J27/122B01J27/125B01J27/128B01J27/132B01J27/138C07B61/00C07C23/08
    • Y02P20/52
    • PROBLEM TO BE SOLVED: To provide a method for producing an octafluorocyclopentene, which is suitable for manufacture on a industrial scale. SOLUTION: The octafluorocyclopentene is manufactured by the following first process and second process. In the first process, a mixture of perhalogenated cyclopentene represented by General formula (2): C 5 Cl B F 8-B (wherein B is an integer of from 0 to 7, and A is larger than B) is obtained by fluorinating a perhalogenated cyclopentene represented by General formula (1): C 5 Cl A F 8-A (wherein A is an integer of from 1 to 8) with hydrogen fluoride, in the presence of a fluorinated catalyst selected from the group consisting of chromium, antimony, iron, zinc, cobalt, nickel, copper, manganese and aluminum, in a gas phase. In the second process, the octafluorocyclopentene is obtained by fluorinating the mixture of perhalogenated cyclopentene represented by General formula (2) obtained in the first process, with a metal fluoride. COPYRIGHT: (C)2006,JPO&NCIPI
    • 待解决的问题:提供适用于工业规模制造的八氟环戊烯的制造方法。 解决方案:八氟环戊烯通过以下第一工艺和第二工艺制造。 在第一方法中,由通式(2)表示的全卤代环戊烯的混合物:其中B(B) 为0〜7的整数,A为大于B的整数)通过氟化由通式(1)表示的全卤代环戊烯获得:C 5 在选自铬,锑,铁,锌,钴,镍的氟化催化剂存在下,使用氟化氢的SBA 8-A (其中A为1至8的整数) ,铜,锰和铝,在气相中。 在第二种方法中,通过氟化氟化第一种方法得到的由通式(2)表示的全卤代环戊烯的混合物,得到八氟环戊烯。 版权所有(C)2006,JPO&NCIPI