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公开(公告)号：US20130006022A1
公开(公告)日：2013-01-03
申请号：US13634047
申请日：2011-02-18
IPC分类号： C07C17/354 , C07C17/23
CPC分类号： C07C17/23 , C07C17/354 , C07C19/08
摘要： The present invention provides a method for producing a fluorine-containing alkane, which comprises reacting at least one fluorine-containing compound selected from the group consisting of chlorine-containing fluoroalkanes and fluorine-containing alkenes with hydrogen gas in the presence of catalysts, wherein two or more catalysts having different catalytic activities are used, and the fluorine-containing compound and hydrogen gas, which are starting materials, are sequentially brought into contact with the catalysts in the order of the catalyst having a lower catalytic activity followed by the catalyst having a higher catalytic activity. According to the present invention, in the method for producing a fluorine-containing alkane by using chlorine-containing fluoroalkane or fluorine-containing alkene as a starting material, and subjection it to a reduction reaction or a hydrogen addition reaction, the objective fluorine-containing alkane can be produced with high productivity.
摘要翻译： 本发明提供一种含氟烷烃的制造方法，其特征在于，在催化剂存在下，使选自含氟的氟代烷烃和含氟烯烃的至少一种含氟化合物与氢气反应， 使用具有不同催化活性的催化剂或更多的催化剂，并且作为起始原料的含氟化合物和氢气按催化剂的顺序依次与催化剂接触，催化剂的催化活性低于催化剂，其后催化剂具有 更高的催化活性。 根据本发明，在使用含氯氟烷烃或含氟烯烃作为起始原料的含氟烷烃的制造方法中，将其置于还原反应或氢加成反应中，目标含氟 可以高生产率生产烷烃。
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公开(公告)号：US08975456B2
公开(公告)日：2015-03-10
申请号：US13505520
申请日：2010-11-09
IPC分类号： C07C17/25 , C07C17/383
CPC分类号： C07C17/383 , C07C21/18
摘要： The present invention provides a method for purifying HFO-1234yf, comprising the steps of (1) cooling a liquid mixture containing HFO-1234yf and HF to separate the mixture into a upper liquid phase having a high concentration of HF and a lower liquid phase having a high concentration of 2,3,3,3-tetrafluoropropene; and (2) subjecting the lower liquid phase obtained in step (1) to a distillation operation to withdraw a mixture containing HFO-1234yf and HF from a top of a distillation column, thereby obtaining substantially HF-free HFO-1234yf from a bottom of the distillation column. According to the present invention, HF and HFO-1234yf contained in a mixture containing HF and HFO-1234yf can be separated under simple and economically advantageous conditions.
摘要翻译： 本发明提供了一种净化HFO-1234yf的方法，包括以下步骤：（1）冷却含有HFO-1234yf和HF的液体混合物，以将混合物分离成具有高浓度HF和较低液相的上液相， 高浓度的2,3,3,3-四氟丙烯; 和（2）将在步骤（1）中获得的下部液相进行蒸馏操作从蒸馏塔的顶部排出含有HFO-1234yf和HF的混合物，从而从底部获得基本上无HF的HFO-1234yf 蒸馏塔。 根据本发明，包含在含有HF和HFO-1234yf的混合物中的HF和HFO-1234yf可以在简单和经济上有利的条件下分离。
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公开(公告)号：US20130105296A1
公开(公告)日：2013-05-02
申请号：US13808358
申请日：2011-07-21
申请人： Takehiro Chaki , Kazuhiro Takahashi
发明人： Takehiro Chaki , Kazuhiro Takahashi
IPC分类号： C07C17/386
CPC分类号： C07C17/386 , C01B7/196 , C07C17/38 , C07C17/383 , Y02P20/582 , C07C21/18
摘要： This invention provides a method for purifying HFO-1234yf by removing HF from a mixture of HFO-1234yf and HF under simple and economically advantageous conditions. According to the present invention, this is a purification method for 2,3,3,3-tetrafluoropropene, (1) the purification method comprising the step of subjecting a mixture comprising 2,3,3,3-tetrafluoropropene and hydrogen fluoride to extractive distillation in a distillation column A using an extractant, thereby obtaining a fraction I that contains 2,3,3,3-tetrafluoropropene and has a lower ratio of hydrogen fluoride to 2,3,3,3-tetrafluoropropene than that of the mixture, while obtaining a fraction II that contains hydrogen fluoride and has a lower ratio of 2,3,3,3-tetrafluoropropene to hydrogen fluoride than that of the mixture; (2) the extractant comprising at least one member selected from the group consisting of: (i) alcohols represented by ROH, wherein R is a C1-5 alkyl group, (ii) ethers represented by ROR′, wherein R and R′ are the same or different, and each is a C1-4 alkyl group, (iii) fluorinated alcohols represented by RfOH, wherein Rf is a C1-3 fluoroalkyl group, (iv) ketones represented by RCOR′, wherein R and R′ are the same or different, and each is a C1-4 alkyl group, (v) esters represented by RCOOR′, wherein R and R′ are the same or different, and each is a C1-4 alkyl group, (vi) polyols represented by R(OH)n, wherein R is a C1-4 alkyl group, and n is an integer of 2 to 3, and (vii) ethylene glycols represented by R1O(CH2CH2O)nR2, wherein R1 and R2 are the same or different, and each is hydrogen or a C1-4 alkyl group, and n is an integer of 1 to 3.
摘要翻译： 本发明提供了一种通过在简单且经济有利的条件下从HFO-1234yf和HF的混合物中除去HF来净化HFO-1234yf的方法。 根据本发明，这是2,3,3,3-四氟丙烯的纯化方法，（1）纯化方法，其包括将包含2,3,3,3-四氟丙烯和氟化氢的混合物进行萃取 在使用萃取剂的蒸馏塔A中进行蒸馏，从而获得含有2,3,3,3-四氟丙烯的馏分I，并且氟化氢与2,3,3,3-四氟丙烯的比例低于混合物， 同时获得含有氟化氢并且比2,3混合物具有较低的2,3,3,3-四氟丙烯与氟化氢的比例II; （2）萃取剂，其包含选自以下的至少一种：（i）由ROH表示的醇，其中R为C 1-5烷基，（ii）由ROR'表示的醚，其中R和R'为 相同或不同，各自为C1-4烷基，（iii）由RfOH表示的氟化醇，其中Rf为C1-3氟代烷基，（iv）由RCOR'表示的酮，其中R和R'为 相同或不同，并且各自为C 1-4烷基，（v）由RCOOR'表示的酯，其中R和R'相同或不同，并且各自为C 1-4烷基，（vi）由 R（OH）n，其中R是C 1-4烷基，n是2至3的整数，和（vii）由R 10（CH 2 CH 2 O）n R 2表示的乙二醇，其中R 1和R 2相同或不同， 各自为氢或C 1-4烷基，n为1〜3的整数。
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公开(公告)号：US20110178344A1
公开(公告)日：2011-07-21
申请号：US13056448
申请日：2009-07-24
IPC分类号： C07C17/20
CPC分类号： C07C17/206 , C07C17/25 , Y02P20/582 , C07C21/18
摘要： The present invention provides a process for producing 2,3,3,3-tetrafluoropropene represented by the formula CF3CF═CH2, comprising contacting a fluorine-containing propane represented by the formula CF2XCFYCH2Z, wherein X is Cl, Br, or I; one of Y and Z is H, and the other is F, Cl, Br, or I, with at least one catalyst selected from the group consisting of chromium oxides, fluorinated chromium oxides, and iron fluorides in a gas phase. According to the process of the invention, 2,3,3,3-tetrafluoropropene can be easily produced under economically advantageous conditions.
摘要翻译： 本发明提供一种制备由式CF 3CF≡CH2表示的2,3,3,3-四氟丙烯的方法，包括使由式CF 2 XCFYCH 2 Z表示的含氟丙烷，其中X为Cl，Br或I; Y和Z中的一个是H，另一个是F，Cl，Br或I，在气相中使用至少一种选自铬氧化物，氟化铬氧化物和氟化铁的催化剂。 根据本发明的方法，可以在经济上有利的条件下容易地制备2,3,3,3-四氟丙烯。
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公开(公告)号：US20110152585A1
公开(公告)日：2011-06-23
申请号：US13059740
申请日：2009-08-20
IPC分类号： C07C17/358
CPC分类号： C07C17/25 , C07C17/358 , C07C17/383 , C07C21/18 , C07C19/08
摘要： The present invention provides a process for producing 2,3,3,3-tetrafluoropropene including the step of dehydrofluorinating 1,1,1,2,3-pentafluoropropane, wherein 1,3,3,3-tetrafluoropropene and 1,1,3,3,3-pentafluoropropane are supplied together with 1,1,1,2,3-pentafluoropropane to a reactor containing a catalyst to simultaneously perform dehydrofluorination reaction and isomerization reaction. According to the process of the present invention, 2,3,3,3-tetrafluoropropene (HFO-1234yf) can be efficiently produced by effectively using the by-products of the dehydrofluorination reaction.
摘要翻译： 本发明提供一种生产2,3,3,3-四氟丙烯的方法，包括使1,1,1,2,3-五氟丙烷脱氟化氢的步骤，其中1,3,3,3-四氟丙烯和1,1,3 ，3,5-五氟丙烷与1,1,1,2,3-五氟丙烷一起供应到含有催化剂的反应器中，以同时进行脱氟化氢反应和异构化反应。 根据本发明的方法，可以通过有效地使用脱氟化氢反应的副产物来有效地制备2,3,3,3-四氟丙烯（HFO-1234yf）。
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公开(公告)号：US08080696B2
公开(公告)日：2011-12-20
申请号：US12312245
申请日：2007-10-26
申请人： Akinari Sugiyama , Takehiro Chaki
发明人： Akinari Sugiyama , Takehiro Chaki
IPC分类号： C07C17/25
摘要： The present invention provides a method for producing an olefin represented by General Formula (II): RfCF═CH2 (II) (wherein Rf is defined as below), wherein the method includes the step of contacting a fluorohalide represented by General Formula (I): RfCF2CH2X (I) (wherein Rf is H(CF2)n (n=1 to 8) or F(CF2)n (n=1 to 8), and X is Br or I) with a metal in a reaction medium of a polar organic solvent, or a mixed solvent of water and a polar organic solvent to conduct a dehalogenation reaction.The production method of the present invention provides olefins in a highly selective manner at a low cost and high yield under relatively mild reaction conditions.
摘要翻译： 本发明提供由通式（II）表示的烯烃的制造方法：RfCF = CH 2（II）（其中Rf定义如下），其中该方法包括使由通式（I）表示的氟卤化物 ：RfCF 2 CH 2 X（I）（其中R f为H（CF 2）n（n = 1-8）或F（CF 2）n（n = 1-8），X为Br或I） 极性有机溶剂或水与极性有机溶剂的混合溶剂进行脱卤反应。 本发明的制备方法在相对温和的反应条件下以低成本和高产率以高选择性方式提供烯烃。
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公开(公告)号：US09428429B2
公开(公告)日：2016-08-30
申请号：US13634047
申请日：2011-02-18
IPC分类号： C07C17/354 , C07C17/23
CPC分类号： C07C17/23 , C07C17/354 , C07C19/08
摘要： The present invention provides a method for producing a fluorine-containing alkane, which comprises reacting at least one fluorine-containing compound selected from the group consisting of chlorine-containing fluoroalkanes and fluorine-containing alkenes with hydrogen gas in the presence of catalysts, wherein two or more catalysts having different catalytic activities are used, and the fluorine-containing compound and hydrogen gas, which are starting materials, are sequentially brought into contact with the catalysts in the order of the catalyst having a lower catalytic activity followed by the catalyst having a higher catalytic activity. According to the present invention, in the method for producing a fluorine-containing alkane by using chlorine-containing fluoroalkane or fluorine-containing alkene as a starting material, and subjection it to a reduction reaction or a hydrogen addition reaction, the objective fluorine-containing alkane can be produced with high productivity.
摘要翻译： 本发明提供一种含氟烷烃的制造方法，其特征在于，在催化剂存在下，使选自含氟的氟代烷烃和含氟烯烃的至少一种含氟化合物与氢气反应， 使用具有不同催化活性的催化剂或更多的催化剂，并且作为起始原料的含氟化合物和氢气按催化剂的顺序依次与催化剂接触，催化剂的催化活性低于催化剂，其后催化剂具有 更高的催化活性。 根据本发明，在使用含氯氟烷烃或含氟烯烃作为起始原料的含氟烷烃的制造方法中，将其置于还原反应或氢加成反应中，目标含氟 可以高生产率生产烷烃。
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公开(公告)号：US20140194656A1
公开(公告)日：2014-07-10
申请号：US14239648
申请日：2012-09-13
IPC分类号： C07C17/383
CPC分类号： C07C17/383 , C07C17/206 , C07C17/25 , C07C17/38 , Y02P20/582 , C07C19/10 , C07C21/18 , C07C19/01
摘要： The present invention provides a method for purifying chlorinated hydrocarbon(s), comprising cooling a mixture containing hydrogen fluoride and at least one chlorinated hydrocarbon selected from the group consisting of 2-chloro-3,3,3-trifluoropropene, 2,3-dichloro-3,3-difluoropropene, 1,2,3-trichloro-1,1-difluoropropane, and 1,1,1,2,3-pentachloropropane to cause liquid-liquid separation of the mixture into an upper liquid phase having a high hydrogen fluoride concentration and a lower liquid phase having a high chlorinated hydrocarbon concentration, and a method for purifying a chlorinated hydrocarbon, comprising subjecting the lower liquid phase obtained by the liquid-liquid separation to a distillation operation. According to the present invention, a chlorinated hydrocarbon can be purified by separating and removing hydrogen fluoride from a chlorinated hydrocarbon-hydrogen fluoride mixture under simple and economically advantageous conditions.
摘要翻译： 本发明提供一种纯化氯代烃的方法，包括冷却含有氟化氢和至少一种选自2-氯-3,3,3-三氟丙烯，2,3-二氯 -3,3-二氟丙烯，1,2,3-三氯-1,1-二氟丙烷和1,1,1,2,3-五氯丙烷，使混合物液液分离成具有高的上液相 氟化氢浓度和氯化烃浓度较高的较低液相，以及氯化烃的精制方法，其特征在于，将通过液液分离得到的下部液相进行蒸馏。 根据本发明，通过在简单且经济上有利的条件下，从氯化烃 - 氟化氢混合物中分离和除去氟化氢可以纯化氯化烃。
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公开(公告)号：US08420873B2
公开(公告)日：2013-04-16
申请号：US13059740
申请日：2009-08-20
IPC分类号： C07C17/00
CPC分类号： C07C17/25 , C07C17/358 , C07C17/383 , C07C21/18 , C07C19/08
摘要： The present invention provides a process for producing 2,3,3,3-tetrafluoropropene including the step of dehydrofluorinating 1,1,1,2,3-pentafluoropropane, wherein 1,3,3,3-tetrafluoropropene and 1,1,3,3,3-pentafluoropropane are supplied together with 1,1,1,2,3-pentafluoropropane to a reactor containing a catalyst to simultaneously perform dehydrofluorination reaction and isomerization reaction.According to the process of the present invention, 2,3,3,3-tetrafluoropropene (HFO-1234yf) can be efficiently produced by effectively using the by-products of the dehydrofluorination reaction.
摘要翻译： 本发明提供一种生产2,3,3,3-四氟丙烯的方法，包括使1,1,1,2,3-五氟丙烷脱氟化氢的步骤，其中1,3,3,3-四氟丙烯和1,1,3 ，3,5-五氟丙烷与1,1,1,2,3-五氟丙烷一起供应到含有催化剂的反应器中，以同时进行脱氟化氢反应和异构化反应。 根据本发明的方法，可以通过有效地使用脱氟化氢反应的副产物来有效地制备2,3,3,3-四氟丙烯（HFO-1234yf）。
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公开(公告)号：US07973202B2
公开(公告)日：2011-07-05
申请号：US12743939
申请日：2008-11-11
IPC分类号： C07C17/00
摘要： The present invention aims to reduce an amount of by-products generated in a reaction step for obtaining fluorine-containing olefin, and thereby to obtain fluorine-containing olefin as a target substance with a higher selectivity than that in the conventional method.In a reaction step for generating fluorine-containing olefin by a dehydrohalogenation reaction from fluorine-containing halogenated propane expressed by a general formula CF3CH(2-n)XnCH(3-m)Xm (wherein n=0, 1 or 2; m=1, 2 or 3; and n+m≦3; and X is selected from F, Cl and Br, independently), fluorochromium oxide having a fluorine content not less than 30% by weight is used as a catalyst.
摘要翻译： 本发明旨在减少在用于获得含氟烯烃的反应步骤中产生的副产物的量，从而以比常规方法更高的选择性获得作为目标物质的含氟烯烃。 在由通式CF 3 CH（2-n）XnCH（3-m）Xm（其中n = 0,1或2; m = 0）表示的含氟卤代丙烷通过脱卤化氢反应产生含氟烯烃的反应步骤中， 1，2或3; n + m＆nlE; 3; X独立地选自F，Cl和Br），氟含量不小于30重量％的氟氧化铬用作催化剂。
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