-
公开(公告)号：US6018083A
公开(公告)日：2000-01-25
申请号：US283450
申请日：1999-04-01
IPC分类号： C07C17/00 , C07C17/04 , C07C17/21 , C07C17/23 , C07C19/08 , C07C21/18 , C07C17/25 , C07C17/08
摘要： A process is disclosed for the separation of a mixture of HF and CF.sub.3 CClFCF.sub.3. The process involves placing the mixture in a separation zone at a temperature of from about -30.degree. C. to about 100.degree. C. and at a pressure sufficient to maintain the mixture in the liquid phase, whereby an organic-enriched phase comprising less than 50 mole percent HF is formed as the bottom layer and an HF-enriched phase comprising more than 90 mole percent HF is formed as the top layer. The organic-enriched phase can be withdrawn from the bottom of the separation zone and subjected to distillation in a distillation column to recover essentially pure CF.sub.3 CClFCF.sub.3. The distillate comprising HF and CF.sub.3 CClFCF.sub.3 can be removed from the top of the distillation column while essentially pure CF.sub.3 CClFCF.sub.3 can be recovered from the bottom of the distillation column. The HF-enriched phase can be withdrawn from the top of the separation zone and subjected to distillation in a distillation column. The distillate comprising HF and CF.sub.3 CClFCF.sub.3 can be removed from the top of the distillation column while essentially pure HF can be recovered from the bottom of the distillation column. If desired, the two distillates can be recycled to the separation zone.Also disclosed are compositions of hydrogen fluoride in combination with an effective amount of CF.sub.3 CClFCF.sub.3 to form an azeotrope or azeotrope-like composition with hydrogen fluoride. Included are compositions containing from about 38.4 to 47.9 mole percent CF.sub.3 CClFCF.sub.3.Also disclosed are processes for producing 1,1,1,2,3,3,3-heptafluoropropane. One process uses a mixture comprising HF and CF.sub.3 CClFCF.sub.3 and is characterized by preparing essentially pure CF.sub.3 CClFCF.sub.3 as indicated above, and reacting the CF.sub.3 CClFCF.sub.3 with hydrogen. Another process uses an azeotropic composition as described above, and reacts the CF.sub.3 CClFCF.sub.3 with hydrogen in the presence of HF.Also disclosed is a process for producing hexafluoropropene. This process is characterized by preparing essentially pure CF.sub.3 CClFCF.sub.3 as indicated above, and dehalogenating the CF.sub.3 CClFCF.sub.3.
-
公开(公告)号：US06262321B1
公开(公告)日：2001-07-17
申请号：US09308402
申请日：1999-05-18
IPC分类号： C07C1725
CPC分类号： B01J27/138 , B01J27/125 , C07C17/25 , Y02P20/582 , C07C21/18
摘要： This invention relates to a process for the production of vinyl fluoride by dehydrofluorination of 1,1-difluoroethane in the presence of a catalyst containing magnesium and/or zinc.
摘要翻译： 本发明涉及在含有镁和/或锌的催化剂存在下，通过1,1-二氟乙烷的脱氟化氢生产氟乙烯的方法。
-
公开(公告)号：US6093859A
公开(公告)日：2000-07-25
申请号：US323736
申请日：1999-06-01
IPC分类号： B01J27/06 , B01J21/10 , B01J23/06 , B01J23/26 , B01J27/10 , B01J27/12 , B01J27/125 , B01J27/132 , B01J27/138 , C07B61/00 , C07C17/25 , C07C17/354 , C07C17/383 , C07C19/08
CPC分类号： C07C19/08 , B01J27/10 , B01J27/12 , C07C17/25 , C07C17/354 , C07C17/383 , B01J21/10 , B01J23/06 , B01J23/26 , B01J27/125 , B01J27/132 , B01J27/138
摘要： A process is disclosed for producing the hydrofluorocarbon CF.sub.3 CH.dbd.CF.sub.2. The process involves dehydrofluorinating CF.sub.3 CH.sub.2 CF.sub.3 at an elevated temperature in the vapor phase over a catalyst of (1) aluminum fluoride, (2) fluorided alumina, (3) metal supported on a trivalent aluminum compound containing fluoride anion, (4) lanthanum fluoride, (5) fluorided lanthanum oxide, (6) metal supported on a trivalent lanthanum compound containing fluoride anion, (7) trivalent chromium compounds and/or (8) catalysts of (a) at least one compound selected from the oxides, fluorides and oxyfluorides of magnesium, zinc and mixtures of magnesium and zinc, and optionally (b) at least one compound selected from the oxides, fluorides and oxyfluorides of aluminum, provided that the atomic ratio of aluminum to the total of magnesium and zinc in said catalyst is about 1:4, or less, to produce a product containing CF.sub.3 CH.dbd.CF.sub.2 and HF. The CF.sub.3 CH.dbd.CF.sub.2 may then be reacted in the vapor phase with hydrogen over a hydrogenation catalyst in the presence of HF to produce CF.sub.3 CH.sub.2 CHF.sub.2.
摘要翻译： 公开了一种生产氢氟烃CF 3 CH = CF 2的方法。 该方法包括在（1）氟化铝，（2）氟化氧化铝，（3）负载在含氟化物阴离子的三价铝化合物上的金属，（4）氟化镧（（ⅰ））的催化剂上，在气相中升高的温度下，将CF 3 CH 2 CF 3脱氟化氢 5）氟化镧氧化物，（6）负载在含氟化物阴离子的三价镧化合物上的金属，（7）三价铬化合物和/或（a）至少一种选自氧化物，氟化物和氟氧化物的化合物的催化剂 镁，锌和镁和锌的混合物，以及任选地（b）至少一种选自铝的氧化物，氟化物和氟氧化物的化合物，条件是铝与所述催化剂中镁和锌的原子比为约1 ：4或更少，以产生含有CF 3 CH = CF 2和HF的产物。 然后在HF存在下，CF 3 CH = CF 2可以在气相中与氢气在氢化催化剂上反应生成CF 3 CH 2 CHF 2。
-
公开(公告)号：US5945573A
公开(公告)日：1999-08-31
申请号：US5400
申请日：1998-01-09
IPC分类号： B01J27/06 , B01J21/10 , B01J23/06 , B01J23/26 , B01J27/10 , B01J27/12 , B01J27/125 , B01J27/132 , B01J27/138 , C07B61/00 , C07C17/25 , C07C17/354 , C07C17/383 , C07C19/08 , C07C17/34
CPC分类号： C07C19/08 , B01J27/10 , B01J27/12 , C07C17/25 , C07C17/354 , C07C17/383 , B01J21/10 , B01J23/06 , B01J23/26 , B01J27/125 , B01J27/132 , B01J27/138
摘要： A process is disclosed for producing the hydrofluorocarbon CF.sub.3 CH.sub.2 CHF.sub.2. The process involves dehydrofluorinating CF.sub.3 CH.sub.2 CF.sub.3 at an elevated temperature in the vapor phase over a catalyst of (1) aluminum fluoride, (2) fluorided alumina, (3) metal supported on a trivalent aluminum compound containing fluoride anion, (4) lanthanum fluoride, (5) fluorided lanthanum oxide, (6) metal supported on a trivalent lanthanum compound containing fluoride anion, (7) trivalent chromium compounds and/or (8) catalysts of (a) at least one compound selected from the oxides, fluorides and oxyfluorides of magnesium, zinc and mixtures of magnesium and zinc, and optionally (b) at least one compound selected from the oxides, fluorides and oxyfluorides of aluminum, provided that the atomic ratio of aluminum to the total of magnesium and zinc in said catalyst is about 1:4, or less, to produce a product containing CF.sub.3 CH.dbd.CF.sub.2 and HF; and reacting the CF.sub.3 CH.dbd.CF.sub.2 in the vapor phase with hydrogen over a hydrogenation catalyst in the presence of HF to produce CF.sub.3 CH.sub.2 CHF.sub.2.
摘要翻译： 公开了用于生产氢氟烃CF 3 CH 2 CHF 2的方法。 该方法包括在（1）氟化铝，（2）氟化氧化铝，（3）负载在含氟化物阴离子的三价铝化合物上的金属，（4）氟化镧（（ⅰ））的催化剂上，在气相中升高的温度下将CF 3 CH 2 CF 3脱氟化氢 5）氟化镧氧化物，（6）负载在含氟化物阴离子的三价镧化合物上的金属，（7）三价铬化合物和/或（a）至少一种选自氧化物，氟化物和氟氧化物的化合物的催化剂 镁，锌和镁和锌的混合物，以及任选地（b）至少一种选自铝的氧化物，氟化物和氟氧化物的化合物，条件是铝与所述催化剂中镁和锌的原子比为约1 ：4或更少，以产生含有CF 3 CH = CF 2和HF的产物; 并在氢气存在下使氢气中的CF 3 CH = CF 2与氢气反应，生成CF 3 CH 2 CHF 2。
-
公开(公告)号：US06281395B1
公开(公告)日：2001-08-28
申请号：US09283451
申请日：1999-04-01
IPC分类号： C07C1708
CPC分类号： C07C17/087 , B01J23/26 , C07C17/21 , C07C19/08 , C07C21/18
摘要： A process is disclosed for the manufacture of CF3CHFCF3 containing less than 0.01 ppm (CF3)2C═CF2. The process involves (a) contacting hexafluoropropene in the vapor phase at a temperature of less than about 260° C. with hydrogen fluoride in the presence of a selected fluorination catalyst or produce a product containing less than 10 parts (CF3)2C═CF2 per million parts of CF3CHFCF3; and (b) treating the product of (a) as necessary to remove excess (CF3)2C═CF2. Suitable catalysts include: (i) an activated carbon treated to contain from about 0.1 to about 10 weight % added alkali or alkaline earth metals, (ii) three dimensional matrix porous carbonaceous materials, (iii) supported metal catalysts comprising trivalent chromium, and (iv) unsupported chrome oxide prepared by the pyrolysis of (NH4)2Cr2O7.
摘要翻译： 公开了用于制造含有小于0.01ppm（CF 3）2 C = CF 2的CF 3 CHFCF 3的方法。 该方法包括（a）在选择的氟化催化剂存在下，在小于约260℃的温度下，使氟化氢在气相中接触六氟丙烯，或者产生含有小于10份（CF 3）2 C = CF 2的产物 百万份CF3CHFCF3; 和（b）根据需要处理（a）的产物以除去过量（CF 3）2 C = CF 2。 合适的催化剂包括：（i）经处理以包含约0.1至约10重量％的加入的碱金属或碱土金属的活性炭，（ii）三维基体多孔碳质材料，（iii）包含三价铬的载体金属催化剂和（ iv）通过（NH 4）2 Cl 2 O 7的热解制备的无载体的氧化铬。
-
公开(公告)号：US09890311B2
公开(公告)日：2018-02-13
申请号：US14878381
申请日：2015-10-08
CPC分类号： C09K5/045 , C07C21/18 , C09K5/04 , C09K2205/126 , C09K2205/22 , C09K2205/40 , F25B1/00 , F25B30/02 , F25B31/002 , F25B39/00 , F25B39/02 , F25B45/00 , F25B2400/12 , F25B2400/121
摘要： The present invention relates to fluoroolefin compositions. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. Additionally, the fluoroolefin compositions of the present invention may be used to replace currently used refrigerant or heat transfer fluid compositions that have higher global warming potential.
-
7.发明授权Ascorbic acid, terephthalate and nitromethane stabilizers for fluoroolefins 有权氟代烯烃的抗坏血酸，对苯二甲酸酯和硝基甲烷稳定剂公开(公告)号：US08668791B2
公开(公告)日：2014-03-11
申请号：US13313458
申请日：2011-12-07
申请人： Thomas J. Leck , Barbara Haviland Minor , Mario Joseph Nappa , Nandini C. Mouli , Jon Lee Howell
发明人： Thomas J. Leck , Barbara Haviland Minor , Mario Joseph Nappa , Nandini C. Mouli , Jon Lee Howell
IPC分类号： C09K5/04
CPC分类号： C09K5/045 , C09K2205/126
摘要： The present disclosure relates to compositions comprising at least one fluoroolefin and an effective amount of a stabilizer comprising at least one ascorbic acid, terephthalate, or nitromethane, or mixtures thereof. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.
摘要翻译： 本公开涉及包含至少一种氟代烯烃和有效量的包含至少一种抗坏血酸，对苯二甲酸酯或硝基甲烷或其混合物的稳定剂的组合物。 稳定的组合物可用于冷却装置，例如制冷，空调，冷却器和热泵，以及作为泡沫发泡剂，溶剂，气溶胶推进剂，灭火剂和灭菌剂的应用。
-
公开(公告)号：US08529786B2
公开(公告)日：2013-09-10
申请号：US12377474
申请日：2007-08-31
申请人： Thomas J. Leck , Nandini C. Mouli , Barbara Haviland Minor , Mario Joseph Nappa , Jon Lee Howell
发明人： Thomas J. Leck , Nandini C. Mouli , Barbara Haviland Minor , Mario Joseph Nappa , Jon Lee Howell
IPC分类号： C09K5/04
CPC分类号： C09K5/045 , C09K2205/126
摘要： The present disclosure relates to compositions comprising at least one fluoroolefin and an effective amount of a stabilizer comprising at least one phosphorus-containing compound selected from the group consisting of thiophosphates, butylated triphenylphosphorothionates, and organophosphates. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.
摘要翻译： 本公开涉及包含至少一种氟代烯烃和有效量的稳定剂的组合物，其包含至少一种选自硫代磷酸酯，丁基化三苯基硫代硫酸酯和有机磷酸酯的含磷化合物。 稳定的组合物可用于冷却装置，例如制冷，空调，冷却器和热泵，以及作为泡沫发泡剂，溶剂，气溶胶推进剂，灭火剂和灭菌剂的应用。
-
9.发明授权Compositions comprising 2,3,3,3-tetrafluoropropene, 2-chloro-2,3,3,3-tetrafluoropropanol, 2-chloro-2,3,3,3-tetrafluoro-propyl acetate or zinc (2-chloro-2,3,3,3-tetrafluoropropdxy) chloride 失效包含2,3,3,3-四氟丙烯，2-氯-2,3,3,3-四氟丙醇，2-氯-2,3,3,3-四氟丙基乙酸酯或锌（2-氯-2 ，3,3,3-四氟丙氧基）氯化物公开(公告)号：US08518294B2
公开(公告)日：2013-08-27
申请号：US13405657
申请日：2012-02-27
申请人： Mario Joseph Nappa , Xuehui Sun
发明人： Mario Joseph Nappa , Xuehui Sun
IPC分类号： C09K5/04
CPC分类号： C09K5/045 , C09K2205/126
摘要： Compositions comprising CF3CClFCH2OH, CF3CClFCH2OZnCl, and CF3CClFCH2OC(═O)CH3 are useful in processes to make HFO-1234yf. Compositions comprising HFO-1234yf may comprise at least one additional compound selected from the group consisting of CFC-114a, HCFC-124, HFC-143a, CFO-1113, HFO-1123, HFO-1132a, tetrafluoroethene, HCFO-1122, 3,4,4,4-tetrafluoro-2-butanone, acetyl fluoride, 2-chloro-2,3,3,3-tetrafluoropropanol, 2-chloro-2,3,3,3-tetrafluoropropyl acetate, Zinc (2-chloro-2,3,3,3-tetrafluoropropoxy) chloride, 2-chloro-2,3,3,3-tetrafluoropropoxy methyl acetate, 1,3-bistrifluoromethyl-1,3-difluorocyclobutane, 2,3,3,3-tetrafluoropropyl acetate, dimethylformamide, pyridine, ethyl acetate, acetic acid, diethyl ether, acetic anhydride, methyl acetate, dimethylacetamide, methanol, ethanol, methyl formate, pyrazine, pyrimidine, N-methylpyrrolidine, N-methylpiperidine, hexamethylphosphoramide, tetrahydrofuran, 1,4-dioxane, N-methylpyrrolidinone, dimethyl sulfoxide, acetonitrile, benzonitrile, and mixtures thereof. Compositions comprising HFO-1234yf are useful, among other uses, as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.
摘要翻译： 包含CF 3 CClFCH 2 OH，CF 3 CClFCH 2 OZnCl和CF 3 CClFCH 2 OC（= O）CH 3的组合物可用于制备HFO-1234yf的方法中。 包含HFO-1234yf的组合物可以包含至少一种选自CFC-114a，HCFC-124，HFC-143a，CFO-1113，HFO-1123，HFO-1132a，四氟乙烯，HCFO-1122,3， 4,4,4-四氟-2-丁酮，乙酰氟，2-氯-2,3,3,3-四氟丙醇，2-氯-2,3,3,3-四氟丙基乙酸酯，锌（2-氯 - 2,3,3,3-四氟丙氧基）氯化物，2-氯-2,3,3,3-四氟丙氧基甲酸乙酯，1,3-双三氟甲基-1,3-二氟环丁烷，乙酸2,3,3,3-四氟丙酯 吡啶，乙酸乙酯，乙酸甲酯，二甲基乙酰胺，甲醇，乙醇，甲酸甲酯，吡嗪，嘧啶，N-甲基吡咯烷，N-甲基哌啶，六甲基磷酰胺，四氢呋喃，1,4-二恶烷 ，N-甲基吡咯烷酮，二甲基亚砜，乙腈，苄腈及其混合物。 包括HFO-1234yf的组合物在其它用途中可用作用于制冷，空调和热泵系统的热传递组合物。
-
10.发明授权Conversion of 2-chloro-1,1,1,2-tetrafluoropropane to 2,3,3,3-tetrafluoropropene 有权将2-氯-1,1,1,2-四氟丙烷转化为2,3,3,3-四氟丙烯公开(公告)号：US08445735B2
公开(公告)日：2013-05-21
申请号：US13478253
申请日：2012-05-23
申请人： Mario Joseph Nappa
发明人： Mario Joseph Nappa
IPC分类号： C07C17/25
摘要： Described is a method for producing fluoropropenes of formula CF3CX═CX2 wherein each X is F or H, at least one X is H, and at least one X is F, comprising pyrolyzing a hydrofluorochloropropane of formula CF3CXYCX2Y, wherein each X is F or H, at least one X is H, and at least one X is F, and one Y is Cl and the other Y is H, in the gas-phase in a reaction vessel, maintained at a temperature high enough to effect the pyrolysis of said hydrofluorochloropropane to said fluoropropene, wherein the selectivity for the production of the fluoropropene is at least 80%, in he absence of a catalyst.
摘要翻译： 描述了制备式CF 3 C X = CX 2的氟丙烯的方法，其中每个X是F或H，至少一个X是H，并且至少一个X是F，包括热解式CF 3 C XYCX 2 Y的氢氟氯丙烷，其中每个X是F或H ，至少一个X是H，至少一个X是F，一个Y是Cl，另一个Y是H，在反应容器中的气相中，保持在足够高的温度下，使所说的 氢氟丙烷与所述氟丙烯反应，其中在不存在催化剂的情况下，氟代丙烯的制备选择性为至少80％。
-
-
-
-
-
-
-
-
-
搜索结果
164 条记录 (耗时 0.033 秒)