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公开(公告)号:US06660130B2
公开(公告)日:2003-12-09
申请号:US09832745
申请日:2001-04-11
申请人: John David Scott , Charles Brian Blake , Paul Nicholas Ewing , Jeremy Charles Bauser Hunns , Steven Toplis , Andrew Neil Irwin , Mark Spruce
发明人: John David Scott , Charles Brian Blake , Paul Nicholas Ewing , Jeremy Charles Bauser Hunns , Steven Toplis , Andrew Neil Irwin , Mark Spruce
IPC分类号: B01D300
CPC分类号: B01D1/16 , B01D1/14 , B01F3/022 , B01F5/0413 , B01F5/0428 , B01J4/001 , B01J19/002 , B01J19/0053 , B01J19/26 , B01J2219/00103 , B01J2219/00108 , B01J2219/0011 , B01J2219/00119 , B01J2219/00121 , B01J2219/00159 , C07C17/00 , C07C17/206 , C07C17/21 , C07C17/358 , Y10S159/20 , Y10S159/25 , Y10S159/901
摘要: Prior to carrying out a gaseous phase chemical reaction, a liquid phase organic compound which is prone to degrade is vaporized at elevated pressures with the aid of a second compound which together with the organic compound produces a mixture having a boiling point less than that of the organic compound. In one embodiment of the invention, vaporization is effected by co-vaporizing a mixture of the two compounds in a vaporiser. In another embodiment, the first compound is injected into a hot gaseous stream and undergoes atomization into droplets which then vaporize within the gaseous stream. The second compound is used to assist the atomization process and/or to sweep atomized droplets of the first compound away from hot surfaces where the first compound would otherwise tend to undergo degradation if the droplets are allowed to reside in contact with such surfaces.
摘要翻译: 在进行气相化学反应之前,易于降解的液相有机化合物在升高的压力下借助第二化合物蒸发,第二化合物与有机化合物一起产生沸点小于 有机化合物。 在本发明的一个实施方案中,蒸发是通过在蒸发器中共蒸发两种化合物的混合物来进行的。 在另一个实施方案中,将第一化合物注入热气流中并将其雾化成液滴,然后在气流中蒸发。 第二化合物用于辅助雾化过程和/或将第一化合物的雾化液体远离热表面,其中如果允许液滴与这些表面接触,则第一化合物将趋于劣化。
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公开(公告)号:US06288292B1
公开(公告)日:2001-09-11
申请号:US09449598
申请日:1999-11-29
IPC分类号: C07C1708
CPC分类号: B01D1/16 , B01D1/14 , B01F3/022 , B01F5/0413 , B01F5/0428 , B01J4/001 , B01J19/002 , B01J19/0053 , B01J19/26 , B01J2219/00103 , B01J2219/00108 , B01J2219/0011 , B01J2219/00119 , B01J2219/00121 , B01J2219/00159 , C07C17/00 , C07C17/206 , C07C17/21 , C07C17/358 , Y10S159/20 , Y10S159/25 , Y10S159/901
摘要: Prior to carrying out a gaseous phase chemical reaction, a liquid phase organic compound which is prone to degrade is vaporised at elevated pressures with the aid of a second compound. In one embodiment of the invention vaporisation is effected by co-vaporising a mixture of the two compounds in a vaporiser. In another embodiment, the first compound is injected into a hot gaseous stream and undergoes atomisation into droplets which then vaporise within the gaseous stream. The second compound is used to assist the atomisation process and/or to sweep atomised droplets of the first compound away from hot surfaces where the first compound would otherwise tend to undergo degradation if the droplets are allowed to reside in contact with such surfaces.
摘要翻译: 在进行气相化学反应之前,易于降解的液相有机化合物借助于第二化合物在升高的压力下蒸发。 在本发明的一个实施方案中,蒸发是通过在蒸发器中共蒸发两种化合物的混合物来实现的。 在另一个实施方案中,将第一化合物注入热气流中,并将其雾化成液滴,然后在气流中蒸发。 第二化合物用于辅助雾化过程和/或将第一化合物的雾化液滴从热表面扫除,其中如果允许液滴与这些表面接触,第一化合物将趋于劣化。
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公开(公告)号:US6034288A
公开(公告)日:2000-03-07
申请号:US533590
申请日:1995-09-25
IPC分类号: B01D1/16 , B01D1/14 , B01F3/02 , B01F5/04 , B01J4/00 , B01J10/00 , B01J19/00 , B01J19/26 , C07C17/00 , C07C17/20 , C07C17/21 , C07C17/358 , C07C17/383 , C07C17/42
CPC分类号: B01D1/16 , B01D1/14 , B01F3/022 , B01F5/0413 , B01F5/0428 , B01J19/002 , B01J19/0053 , B01J19/26 , B01J4/001 , C07C17/00 , C07C17/206 , C07C17/21 , C07C17/358 , B01J2219/00103 , B01J2219/00108 , B01J2219/0011 , B01J2219/00119 , B01J2219/00121 , B01J2219/00159 , Y10S159/20 , Y10S159/25 , Y10S159/901
摘要: Prior to carrying out a gaseous phase chemical reaction, a liquid phase organic compound which is prone to degrade is vaporised at elevated pressures with the aid of a second compound. In one embodiment of the invention, vaporisation is effected by co-vaporising a mixture of the two compounds in a vaporiser. In another embodiment, the first compound is injected into a hot gaseous stream and undergoes atomisation into droplets which then vaporise within the gaseous stream. The second compound is used to assist the atomisation process and/or to sweep atomised droplets of the first compound away from hot surfaces where the first compound would otherwise tend to undergo degradation if the droplets are allowed to reside in contact with such surfaces.
摘要翻译: 在进行气相化学反应之前,易于降解的液相有机化合物借助于第二化合物在升高的压力下蒸发。 在本发明的一个实施方案中,通过在蒸发器中共蒸发两种化合物的混合物来实现蒸发。 在另一个实施方案中,将第一化合物注入热气流中,并将其雾化成液滴,然后在气流中蒸发。 第二化合物用于辅助雾化过程和/或将第一化合物的雾化液滴从热表面扫除,其中如果允许液滴与这些表面接触,第一化合物将趋于劣化。
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公开(公告)号:US5898088A
公开(公告)日:1999-04-27
申请号:US663068
申请日:1996-06-14
IPC分类号: C07C17/10 , C07C17/20 , C07C17/21 , C07C17/383 , C07C19/08 , B01J27/06 , C07C17/093
CPC分类号: C07C17/21 , C07C17/10 , C07C17/206 , C07C17/383
摘要: A process for the production of pentafluoroethane which comprises the steps (i) producing a composition comprising a compound of formula C.sub.2 HCl.sub.x F.sub.y in which x=1, 2 or 3 and y=2, 3 or 4 provided that x+y is 5, contaminated with a compound of formula C.sub.2 Cl.sub.x+1 F.sub.y, (ii) separating the compound of formula C.sub.2 HCl.sub.x F.sub.y from the compound of formula C.sub.2 Cl.sub.x+1 F.sub.y and (iii) contacting the compound of formula C.sub.2 HCl.sub.x F.sub.y with hydrogen fluoride in the presence of a fluorination catalyst whereby to produce pentafluoroethane.
摘要翻译: PCT No.PCT / GB94 / 02677 Sec。 371日期1996年6月14日第 102(e)1996年6月14日PCT 1994年12月7日PCT PCT。 公开号WO95 / 16654 日期:1995年6月22日制备五氟乙烷的方法,其包括步骤(i)制备包含其中x = 1,2或3和y = 2,3或4的式C2HClxFy化合物的组合物,条件是x + y 为5,受到式C2Clx + 1Fy的化合物的污染,(ii)将式C2HClxFy的化合物与式C2Clx + 1Fy的化合物分离,和(iii)在氟化催化剂存在下使式C2HClxFy的化合物与氟化氢接触 从而制备五氟乙烷。
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公开(公告)号:US6127586A
公开(公告)日:2000-10-03
申请号:US244716
申请日:1999-02-04
IPC分类号: C07C17/10 , C07C17/20 , C07C17/21 , C07C17/383 , C07C19/08 , B01J27/06 , C07C17/093
CPC分类号: C07C17/21 , C07C17/10 , C07C17/206 , C07C17/383
摘要: A process for the production of pentafluoroethane which comprises the steps (i) producing a composition comprising a compound of formula C.sub.2 HCl.sub.x F.sub.y in which x=1,2 or 3 and y=2,3 or 4 provided that x+y is 5, contaminated with a compound of formula C.sub.2 Cl.sub.x+1 F.sub.y, (ii) separating the compound of formula C.sub.2 HCl.sub.x F.sub.y from the compound of formula C.sub.2 Cl.sub.x+1 F.sub.y, and (iii) contacting the compound of formula C.sub.2 HCl.sub.x F.sub.y with hydrogen fluoride in the presence of a fluorination catalyst to produce pentafluoroethane is disclosed.
摘要翻译: 一种生产五氟乙烷的方法,其包括步骤(i)制备包含式C2HClxFy化合物的组合物,其中x = 1,2或3和y = 2,3或4,条件是x + y为5,被 式C2Clx + 1Fy的化合物,(ii)将式C2HClxFy的化合物与式C2Clx + 1Fy的化合物分离,和(iii)在氟化催化剂的存在下使式C2HClxFy的化合物与氟化氢接触以产生五氟乙烷是 披露
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公开(公告)号:US5763707A
公开(公告)日:1998-06-09
申请号:US716369
申请日:1996-09-19
IPC分类号: B01J27/132 , C07B61/00 , C07C17/20 , C07C17/21 , C07C17/35 , C07C19/08 , C07C49/08 , C07C17/08
CPC分类号: C07C49/08 , C07C17/206 , C07C17/21 , C07C19/08
摘要: There is provided a process for the production of pentafluoroethane which comprises contacting a hydrofluorochloroethane having the formula: C.sub.2 H.sub.1 Cl.sub.1+x F.sub.1+y wherein x and y are each independently 0,1,2 or 3 provided x+y is 3 with hydrogen fluoride in the vapor phase and in the presence of a fluorination catalyst which comprises zinc or a compound of zinc and chromia, chromium fluoride or chromium oxyfluoride.
摘要翻译: PCT No.PCT / GB95 / 00766 Sec。 371日期1996年9月19日 102(e)1996年9月19日PCT PCT 1995年4月4日PCT公布。 WO95 / 27688 PCT公开号 日期:1995年10月19日提供了一种生产五氟乙烷的方法,其包括使具有下列式的氢氟氯乙烷:C 2 H 11 Cl 1 + x F 1 + y其中x和y各自独立地为0,1,2或3,条件是x + y为3, 在氟化氢存在下,在氟化催化剂存在下,该催化剂包含锌或锌和氧化铬,氟化铬或氟氧化铬的化合物。
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公开(公告)号:US6111151A
公开(公告)日:2000-08-29
申请号:US242053
申请日:1999-02-08
IPC分类号: C07C17/383 , C07C17/20 , C07C17/21 , C07C17/361 , C07C17/38 , C07C19/08 , C07C17/08
CPC分类号: C07C17/38 , C07C17/206 , C07C17/21 , C07C17/361
摘要: Process for removing water from compositions containing water, organics and hydrogen fluoride (e.g. product stream from vapour phase hydrofluorination processes, e.g. manufacture of HFA 134a, HFA 125 or HFA 32) by phase separation and purge of the aqueous layer.
摘要翻译: PCT No.PCT / GB97 / 02104 Sec。 371日期1999年2月8日 102(e)1999年2月8日PCT PCT 1997年8月5日PCT公布。 出版物WO98 / 06685 日期1998年2月19日通过相分离和清洗水层从含有水,有机物和氟化氢的组合物(例如来自气相氢氟化方法的产物流,例如HFA 134a,HFA 125或HFA 32的制备)中除去水的方法。
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公开(公告)号:US5744660A
公开(公告)日:1998-04-28
申请号:US576049
申请日:1995-12-21
申请人: Lisa Bradley , Leslie Burgess , Richard Llewellwyn Powell , Geoffrey James Moore , Paul Nicholas Ewing , Kenneth Taylor
发明人: Lisa Bradley , Leslie Burgess , Richard Llewellwyn Powell , Geoffrey James Moore , Paul Nicholas Ewing , Kenneth Taylor
IPC分类号: C07C17/20 , C07C17/358 , C07C19/08 , C07C17/08
CPC分类号: C07C19/08 , C07C17/206 , C07C17/358
摘要: This invention relates to a process for the production of 1,1,2,2- and/or 1,1,1,2-tetrafluoroethanes, and in particular to a process for the production of 1,1,1,2-tetrafluoroethane.
摘要翻译: 本发明涉及一种生产1,1,2,2-和/或1,1,1,2-四氟乙烷的方法,特别涉及生产1,1,1,2-四氟乙烷的方法 。
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公开(公告)号:US06270742B1
公开(公告)日:2001-08-07
申请号:US09051508
申请日:1998-04-08
IPC分类号: C01B719
CPC分类号: C01B7/195
摘要: A process for separating and recovering hydrogen fluoride from a mixture with an organic compound especially a fluorine-containing compound by extraction with a solution of an alkali metal fluoride in hydrogen fluoride, phase separation and recovery. A process for producing a fluorine-containing organic compound by fluorinating a starting material with hydrogen fluoride and similarly recovering hydrogen fluoride from the product stream. The solution may be anhydrous or aqueous.
摘要翻译: 通过用氟化氢中的碱金属氟化物溶液萃取,相分离和回收,从有机化合物,特别是含氟化合物的混合物中分离和回收氟化氢的方法。 通过用氟化氢氟化起始原料并类似地从产物流中回收氟化氢来制备含氟有机化合物的方法。 溶液可以是无水或含水的。
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公开(公告)号:US5962753A
公开(公告)日:1999-10-05
申请号:US793169
申请日:1997-02-18
CPC分类号: C07C17/21
摘要: Process for the manufacture of pentafluoroethane �HFC 125! by reaction of perchloroethylene with hydrogen fluoride in the vapor phase over a fluorination catalyst in a fluorination reactor with recycle of dichlorotrifluoroethane �HCFC 123! and chlorotetrafluoroethane �HCFC 124! to the fluorination reactor, wherein tetrafluoroethane �HFC 134a! is also recycled to the fluorination reactor. The tetrafluoroethane and the chlorotetrafluoroethane can both be separated from the product stream in a single distillation column and recycled, together to the fluorination reactor.
摘要翻译: PCT No.PCT / GB95 / 01872 Sec。 371日期1997年2月18日 102(e)日期1997年2月18日PCT提交1995年8月8日PCT公布。 出版物WO96 / 06062 日本1996年2月29日在氟化反应器中,通过氟化反应器中的二氯三氟乙烷[HCFC 123]和氯四氟乙烷[HCFC 124]的再循环,使全氯乙烯与氟化氢在气相中通过氟化催化剂反应制备五氟乙烷[HFC 125] 氟化反应器,其中四氟乙烷[HFC 134a]也被循环到氟化反应器中。 四氟乙烷和氯四氟乙烷都可以在单个蒸馏塔中与产物流分离,并一起再循环到氟化反应器中。
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