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公开(公告)号:US06414203B1
公开(公告)日:2002-07-02
申请号:US09830061
申请日:2001-05-09
申请人: Hidekazu Okamoto , Keiichi Ohnishi
发明人: Hidekazu Okamoto , Keiichi Ohnishi
IPC分类号: C07C1738
CPC分类号: C07C17/206 , B01J21/18 , C07C17/395 , C07C19/08
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。
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公开(公告)号:US5663543A
公开(公告)日:1997-09-02
申请号:US424391
申请日:1995-05-01
申请人: Shinsuke Morikawa , Hidekazu Okamoto , Keiichi Ohnishi , Toru Shimoyama , Naoko Wada , Yoshio Sato , Hideyuki Kurata
发明人: Shinsuke Morikawa , Hidekazu Okamoto , Keiichi Ohnishi , Toru Shimoyama , Naoko Wada , Yoshio Sato , Hideyuki Kurata
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。
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公开(公告)号:US5608126A
公开(公告)日:1997-03-04
申请号:US494063
申请日:1995-06-23
IPC分类号: C07C17/20 , C07C17/278 , C07C19/08 , C07C17/08 , C07C21/18
CPC分类号: C07C19/08 , C07C17/206 , C07C17/278
摘要: A process for preparing 1,1,1,3,3-pentafluoropropane, which comprises reacting 1,1-difluoroethylene with dichlorofluoromethane in the presence of a Lewis acid catalyst to form 1,2,2-trihydrodichlorotrifluoropropane and fluorinating the 1,2,2-trihydrodichlorotrifluoropropane with hydrogen fluoride.
摘要翻译: 一种制备1,1,1,3,3-五氟丙烷的方法,其包括在路易斯酸催化剂存在下使1,1-二氟乙烯与二氯一氟甲烷反应,形成1,2,2-三氢二氯三氟氟丙烷并氟化1,2, 2-氟二氟三氟甲烷与氟化氢反应。
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公开(公告)号:US5264639A
公开(公告)日:1993-11-23
申请号:US885250
申请日:1992-05-20
申请人: Shinsuke Morikawa , Shunichi Samejima , Hidekazu Okamoto , Keiichi Ohnishi , Shin Tatematsu , Toshihiro Tanuma , Takashi Ohmori
发明人: Shinsuke Morikawa , Shunichi Samejima , Hidekazu Okamoto , Keiichi Ohnishi , Shin Tatematsu , Toshihiro Tanuma , Takashi Ohmori
CPC分类号: C07C17/206 , C07C17/208
摘要: A process for producing a 2,2-difluoropropane of the following formula (2), which comprises fluorinating a chlorine-containing 2,2-halogenopropane of the following formula (1) by hydrogen fluoride or a fluorinating agent:C.sub.3 H.sub.a Cl.sub.b F.sub.c (1)C.sub.3 H.sub.a Cl.sub.b-x F.sub.c+x (2)wherein a, b, c and x are integers satisfying the following conditions:a.gtoreq.0, b.gtoreq.1, c.gtoreq.0, x.gtoreq.1, a+b+c=8.
摘要翻译: 一种制备下式(2)的2,2-二氟丙烷的方法,其包括用氟化氢或氟化剂氟化下列式(1)的含氯2,2-二氯代丙烷:C3HaClbFc(1)C3HaClb -xFc + x(2)其中a,b,c和x是满足以下条件的整数:a> / = 0,b> / = 1,c> / = 0,x> / = 1,a + b + c = 8。
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公开(公告)号:US5220084A
公开(公告)日:1993-06-15
申请号:US914590
申请日:1992-07-20
申请人: Keiichi Ohnishi , Hidekazu Okamoto , Toshihiro Tanuma , Koichi Yanase , Toru Kawasaki , Ryutaro Takei
发明人: Keiichi Ohnishi , Hidekazu Okamoto , Toshihiro Tanuma , Koichi Yanase , Toru Kawasaki , Ryutaro Takei
IPC分类号: C07C17/278
CPC分类号: C07C17/278
摘要: A method for producing a dichloropentafluoropropane, which comprises reacting dichlorofluoromethane (R21) with tetrafluoroethylene (4F) in the presence of a Lewis acid catalyst for addition reaction to obtain dichloropentafluoropropane, wherein a halide containing at least one element selected from the group consisting of Sb, Nb, Ta, B, Ga, In, Zr, Hf and Ti, or AlBr.sub.3, or AlI.sub.3, is used as the Lewis acid.
摘要翻译: 一种二氯五氟丙烷的制造方法,其特征在于,在路易斯酸催化剂存在下,使二氯氟甲烷(R21)与四氟乙烯(4F)反应进行加成反应,得到二氯五氟丙烷,其中,含有选自Sb, 使用Nb,Ta,B,Ga,In,Zr,Hf和Ti,或AlBr 3或AlI 3作为路易斯酸。
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公开(公告)号:US6124511A
公开(公告)日:2000-09-26
申请号:US902969
申请日:1997-07-30
申请人: Keiichi Ohnishi , Hidekazu Okamoto
发明人: Keiichi Ohnishi , Hidekazu Okamoto
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。
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公开(公告)号:US5663464A
公开(公告)日:1997-09-02
申请号:US632383
申请日:1996-04-10
申请人: Hidekazu Okamoto , Keiichi Ohnishi
发明人: Hidekazu Okamoto , Keiichi Ohnishi
IPC分类号: B01J23/42 , B01J21/18 , B01J23/38 , B01J23/44 , B01J23/46 , B01J23/50 , B01J23/52 , B01J23/66 , B01J23/68 , B01J23/89 , C07B61/00 , C07C17/00 , C07C17/23 , C07C19/08
摘要: A method for producing 1,1,1,3,3-pentafluoropropane, which comprises reducing at least one chlorofluorohydrocarbon selected from the group consisting of CF.sub.3 CClXCClF.sub.2 wherein X is a H atom or a Cl atom, and CF.sub.3 CCl.dbd.CF.sub.2, with hydrogen in the presence of a reduction catalyst comprising, as a first component, at least one metal selected from the group consisting of Ru, Rh, Pd and Pt, and, as a second component, at least one metal selected from the group consisting of Ni, Co, La, Re, W, Ta, Nb, Ti, Zr, Mo, Cu, Ag and Au.
摘要翻译: 一种生产1,1,1,3,3-五氟丙烷的方法,其包括将至少一种选自CF 3 CClXCClF 2,其中X是H原子或Cl原子的CF 3 CCl = CF 2,和CF 3 CCl = CF 2的氯氟烃与 存在还原催化剂,其包含作为第一组分的至少一种选自Ru,Rh,Pd和Pt的金属,以及作为第二组分的至少一种选自Ni,Co ,La,Re,W,Ta,Nb,Ti,Zr,Mo,Cu,Ag和Au。
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公开(公告)号:US5227547A
公开(公告)日:1993-07-13
申请号:US914591
申请日:1992-07-20
申请人: Keiichi Ohnishi , Hidekazu Okamoto , Toshihiro Tanuma , Koichi Yanase , Toru Kawasaki , Ryutaro Takei
发明人: Keiichi Ohnishi , Hidekazu Okamoto , Toshihiro Tanuma , Koichi Yanase , Toru Kawasaki , Ryutaro Takei
IPC分类号: C07C17/278
CPC分类号: C07C17/278
摘要: A method for producing a dichloropentafluoropropane, which comprises reacting dichlorofluoromethane (R21) with tetrafluoroethylene (4F) in the presence of a Lewis acid catalyst for addition reaction to obtain dichloropentafluoropropane, wherein a halide containing at least one element selected from the group consisting of Sb, Nb, Ta, B, Ga, In, Zr, Hf and Ti, or AlBr.sub.3, or AlI.sub.3, is used as the Lewis acid.
摘要翻译: 一种二氯五氟丙烷的制造方法,其特征在于,在路易斯酸催化剂存在下,使二氯氟甲烷(R21)与四氟乙烯(4F)反应进行加成反应,得到二氯五氟丙烷,其中,含有选自Sb, 使用Nb,Ta,B,Ga,In,Zr,Hf和Ti,或AlBr 3或AlI 3作为路易斯酸。
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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
CPC分类号: B01J27/135 , B01J27/08 , B01J27/125 , C07C17/278 , C07C19/10
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.
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公开(公告)号:US5545777A
公开(公告)日:1996-08-13
申请号:US272622
申请日:1994-07-11
申请人: Shinsuke Morikawa , Shunichi Samejima , Masaru Yoshitake , Hidekazu Okamoto , Keiichi Ohnishi , Toshihiro Tanuma
发明人: Shinsuke Morikawa , Shunichi Samejima , Masaru Yoshitake , Hidekazu Okamoto , Keiichi Ohnishi , Toshihiro Tanuma
CPC分类号: C07C17/23
摘要: A process for producing a hydrogen-containing 2,2-difluoropropane of the following formula (2), which comprises subjecting a 2,2-difluoropropane of the following formula (1) to hydrogen reduction:C.sub.3 H.sub.a Cl.sub.b F.sub.c (1)C.sub.3 H.sub.a+x Cl.sub.b-y F.sub.c-z (2)wherein a, b, c, x, y and z are integers satisfying the following conditions:a.gtoreq.0, b.gtoreq.1, c.gtoreq.2, x.gtoreq.1, y.gtoreq.0, z.gtoreq.0, a+b+c=8, x=y+z b-y.gtoreq.0, and c-z.gtoreq.2.
摘要翻译: 一种制备下式(2)的含氢2,2-二氟丙烷的方法,包括使下式(1)的2,2-二氟丙烷进行氢还原:C3HaClbFc(1)C3Ha + xClb-yFc -z(2)其中a,b,c,x,y和z是满足以下条件的整数:a> / = 0,b> / = 1,c> / = 2,x> / = 1,y> / = 0,z> / = 0,a + b + c = 8,x = y + z by> / = 0,cz> / = 2。
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