专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US07217678B2 Cobalt-substituted chromium oxide compositions, their preparation, and their use as catalysts and catalyst precursors 有权
标题翻译：钴取代的氧化铬组合物，它们的制备及其作为催化剂和催化剂前体的用途
公开(公告)号：US07217678B2
公开(公告)日：2007-05-15
申请号：US10523228
申请日：2003-08-21
申请人： Velliyur Nott Mallikarjuna Rao , H. David Rosenfeld , Allen C. Sievert , Shekhar Subramoney , Munirpallam Appadorai Subramanian
发明人： Velliyur Nott Mallikarjuna Rao , H. David Rosenfeld , Allen C. Sievert , Shekhar Subramoney , Munirpallam Appadorai Subramanian
IPC分类号： B01J27/06 , B01J23/00
CPC分类号： C07C17/21 , B01J23/864 , B01J35/002 , B01J35/1014 , B01J37/0236 , B01J37/03 , C07C17/00 , C07C17/08 , C07C17/10 , C07C17/20 , C07C17/206 , C07C17/23 , C07C17/25 , C07C17/358 , C07C17/37 , C07C21/18 , C07C21/04 , C07C19/08 , C07C21/06 , C07C19/12 , C07C19/10
摘要： A crystalline alpha-chromium oxide where from about 0.05 atom % to about 6 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by trivalent cobalt (Co+3) atoms is disclosed. Also disclosed is a chromium-containing catalyst composition comprising as a chromium-containing component the crystalline cobalt-substituted alpha-chromium oxide; and a method for preparing a composition comprising the crystalline cobalt-substituted alpha-chromium oxide. The method involves (a) co-precipitating a solid by adding ammonium hydroxide to an aqueous solution of a soluble cobalt salt and a soluble trivalent chromium salt that contains at least three moles of nitrate per mole of chromium in the solution and has a cobalt concentration of from about 0.05 mole % to about 6 mole % of the total concentration of cobalt and chromium in the solution; and after at least three moles E of ammonium per mole of chromium in the solution has been added to the solution, (b) collecting the co-precipitated solid formed in (a); (c) drying the collected solid; and (d) calcining the dried solid. Also disclosed is a chromium-containing catalyst composition comprising a chromium-containing component prepared by treating the crystalline cobalt-substituted alpha-chromium oxide with a fluorinating agent; and a process for changing the fluorine distribution (i.e., content and/or arrangement) in a hydrocarbon or halogenated hydrocarbon in the presence of a catalyst. The process involves using as the catalyst a composition comprising the crystalline cobalt-substituted alpha-chromium oxide and/or the treated cobalt-substituted alpha-chromium oxide.
摘要翻译：公开了一种结晶α-Cr氧化物，其中α-Cr氧化物晶格中约0.05原子％至约6原子％的铬原子被三价钴（Co + O 3+）原子所取代。还公开了含铬催化剂组合物，其包含结晶钴取代的α-氧化铬作为含铬组分; 以及制备包含结晶钴取代的α-氧化铬的组合物的方法。该方法包括（a）通过向可溶性钴盐和可溶性三价铬盐的水溶液中加入氢氧化铵共沉淀固体，该溶液在溶液中每摩尔铬含有至少三摩尔硝酸盐，并且具有钴浓度为溶液中钴和铬的总浓度的约0.05摩尔％至约6摩尔％并且在溶液中每摩尔铬至少三摩尔E之后的铵加入到溶液中，（b）收集（a）中形成的共沉淀固体; （c）干燥收集的固体; 和（d）煅烧干燥的固体。还公开了一种含铬催化剂组合物，其包含通过用氟化剂处理结晶钴取代的α-氧化铬制备的含铬组分; 以及在催化剂存在下改变烃或卤代烃中的氟分布（即含量和/或排列）的方法。该方法包括使用包含结晶钴取代的α-氧化铬和/或经处理的钴取代的α-氧化铬的组合物作为催化剂。

32. 发明授权

US5565081A Processes for the preparation of 2,2,3,3-tetrafluoropropionate salts and derivatives thereof 失效
标题翻译：制备2,2,3,3-四氟丙酸盐及其衍生物的方法
公开(公告)号：US5565081A
公开(公告)日：1996-10-15
申请号：US235075
申请日：1994-04-29
申请人： Carl G. Krespan , Allen C. Sievert
发明人： Carl G. Krespan , Allen C. Sievert
IPC分类号： C07C51/41 , C07C69/63 , C25B3/10
CPC分类号： C07C69/63 , C07C51/41
摘要： This invention relates to chemical processes for preparing tetrafluoropropionate salts and selected derivatives thereof.
摘要翻译：本发明涉及制备四氟丙酸盐及其选择的衍生物的化学方法。

33. 发明授权

US5430206A Method for purifying dichloropentafluoropropanes 失效
标题翻译：纯化二氯五氟丙烷的方法
公开(公告)号：US5430206A
公开(公告)日：1995-07-04
申请号：US784672
申请日：1991-10-25
申请人： Abid N. Merchant , Allen C. Sievert
发明人： Abid N. Merchant , Allen C. Sievert
IPC分类号： C07C17/38 , C07C17/395 , C07C19/10
CPC分类号： C07C17/395
摘要： A method of recovering pure dichloropentafluoropropane from a mixture of dichloropentaflouropropane and chloroform (including breaking the azeotropic mixture thereof) involving selectively fluorinating the chloroform to the lower boiling dichloromonofluoromethane and then distilling to separate and recover pure dichloropentafluoropropane.
摘要翻译：从二氯泛酰丙烷和氯仿的混合物（包括破坏其共沸混合物）中回收纯二氯五氟丙烷的方法，包括选择性地将氯仿氟化成低沸点二氯一氟甲烷，然后蒸馏分离并回收纯二氯五氟丙烷。

34. 发明授权

US5410095A Process for the production of pentaflourodimethyl ether 失效
标题翻译：生产五氟二甲醚的方法
公开(公告)号：US5410095A
公开(公告)日：1995-04-25
申请号：US283309
申请日：1994-07-29
申请人： Paul R. Resnick , Allen C. Sievert
发明人： Paul R. Resnick , Allen C. Sievert
IPC分类号： C07C41/18
CPC分类号： C07C41/18
摘要： A process for the manufacture of pentafluorodimethyl ether is disclosed which involves contacting at least one starting compound selected from the group consisting of compounds having a formula (CF.sub.3 OCF.sub.2 CO.sub.2)A and compounds having he formula (CF.sub.3 OCF.sub.2 CO.sub.2).sub.2 A' wherein A is selected from the group consisting of hydrogen, ammonium, alkali metals (e.g., sodium or potassium) and R (wherein R is a C.sub.1 to C.sub.4 alkyl group) and A' is an selected from the group consisting of alkaline-earth metals (e.g., magnesium or calcium), with at least one hydroxylic compound selected from the group consisting of water, mono-alcohols of the formula R'OH (wherein R' is a C.sub.1 to C.sub.12 straight or branched chain alkyl group) and alkanediols of the formula R" (OH).sub.2 (wherein R" is a C.sub.2 to C.sub.8 alkylene group) at temperature of about 120.degree. C. to 170.degree. C.
摘要翻译：公开了制备五氟二甲醚的方法，该方法涉及使至少一种选自具有式（CF 3 OCF 2 CO 2）A的化合物和具有式（CF 3 OCF 2 CO 2）2A'的化合物）的起始化合物与其中A选自的氢，铵，碱金属（例如钠或钾）和R（其中R是C1至C4烷基）和A'选自碱土金属（例如镁或钙），与至少一种选自水，式R'OH的单醇（其中R'为C1至C12直链或支链烷基）和式R“（OH）的烷二醇的羟基化合物， 2（其中R“是C 2至C 8亚烷基），温度为约120℃至170℃

35. 发明授权

US07285691B2 Process for the preparation of 1,1,1,3,3,3-hexafluoropropane and at least one of 1,1,1,2,3,3-hexafluoropropane and 1,1,1,2,3,3,3-heptafluoropropane 有权
公开(公告)号：US07285691B2
公开(公告)日：2007-10-23
申请号：US10572625
申请日：2004-10-13
申请人： Velliyur Nott Mallikarjuna Rao , Allen C. Sievert
发明人： Velliyur Nott Mallikarjuna Rao , Allen C. Sievert
IPC分类号： C07C17/10 , C07C17/00
CPC分类号： C07C17/23 , B01J23/002 , B01J23/26 , B01J27/12 , B01J37/26 , B01J2523/00 , C07C17/21 , C07C19/08 , C07C19/10 , B01J2523/27 , B01J2523/67
摘要： A process is disclosed for the manufacture of 1,1,1,3,3,3-hexafluoropropane (HFC-236fa) and at least one 1,1,1,2,3,3-hexafluoropropane (HFC-236ea) and 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea). The process involves (a) reacting HF, Cl2, and at least one halopropene of the formula CX3CCl=CX2 (where each X is independently F or Cl) to produce a product including both CF3CCl2CF3 and CF3CClFCClF2; (b) reacting CF3CCl2CF3 and CF3CClFCClF2 produced in (a) with hydrogen to produce a product comprising CF3CH2CF3 and at least one compound selected from the group consisting of CHF2CHFCF3, and CF3CHFCF3; and (c) recovering from the product produced in (b), CF3CH2CF3 and at least one compound selected from the group consisting of CHF2CHFCF3 and CF3CHFCF3. In (a), the CF3CCl2CF3 and CF3CClFCClF2 are produced in the presence of a chlorofluorination catalyst including a ZnCr2O4/crystalline α-chromium oxide composition, a ZnCr2O4/crystalline α-chromium oxide composition which has been treated with a fluorinating agent, a zinc halide/α-chromium oxide composition and/or a zinc halide/α-chromium oxide composition which has been treated with a fluorinating agent.

36. 发明授权

US5562853A 1,1,2,2,3,3,4,4,-octafluorobutane compositions 失效
标题翻译： 1,1,2,2,3,3,4,4， - 八氟丁烷组合物
公开(公告)号：US5562853A
公开(公告)日：1996-10-08
申请号：US314836
申请日：1994-09-29
申请人： Barbara H. Minor , Allen C. Sievert
发明人： Barbara H. Minor , Allen C. Sievert
IPC分类号： A62D1/02 , A62D3/00 , C07C9/02 , C07C13/02 , C07C19/08 , C07C43/04 , C07C69/06 , C07C323/03 , C07D303/04 , C07D307/06 , C08J9/14 , C09K3/30 , C09K5/04 , C10M105/50 , C10N40/08 , C11D7/24 , C11D7/26 , C11D7/30 , C11D7/34 , C11D7/50 , C23G5/024 , C23G5/028
CPC分类号： C11D7/5077 , C08J9/149 , C09K3/30 , C09K5/045 , C11D7/5072 , C23G5/024 , C23G5/02803 , C08J2203/12 , C08J2203/142 , C08J2207/04 , C09K2205/104 , C09K2205/11 , C09K2205/114 , C09K2205/12 , C09K2205/134 , C09K2205/32
摘要： Compositions include compositions of 1,1,2,2,3,3,4,4-octafluorobutane and a hydrocarbon having from 3 to 7 carbon atoms. Specific examples include 1,1,2,2,3,3,4,4-octafluorobutane and butane, cyclopropane, isobutane, propane, cyclopentane, 2,2-dimethylbutane, n-pentane, 2-methylbutane, cyclohexane, 2,3-dimethylpentane, 3-ethylpentane, heptane, hexane or methylcyclopentane. Also included in this invention are compositions of 1,1,2,2,3,3,4,4-octafluorobutane and ethyl formate, propylene oxide, bis(pentafluoroethyl)sulfide, dimethoxyethane or tetrahydrofuran. These compositions, which may be azeotropic or azeotrope-like, may be used as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, refrigerants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents or displacement drying agents.
摘要翻译：组合物包括1,1,2,2,3,3,4,4-八氟丁烷的组合物和具有3至7个碳原子的烃。具体实例包括1,1,2,2,3,3,4,4-八氟丁烷和丁烷，环丙烷，异丁烷，丙烷，环戊烷，2,2-二甲基丁烷，正戊烷，2-甲基丁烷，环己烷，2,3 二甲基戊烷，3-乙基戊烷，庚烷，己烷或甲基环戊烷。本发明还包括1,1,2,2,3,3,4,4-八氟丁烷和甲酸乙酯，环氧丙烷，双（五氟乙基）硫醚，二甲氧基乙烷或四氢呋喃的组合物。这些可以共沸或类共沸的组合物可用作制冷剂，清洁剂，聚烯烃和聚氨酯的膨胀剂，气溶胶推进剂，制冷剂，传热介质，气体电介质，灭火剂，动力循环工作流体，聚合介质，微粒去除液，载液，抛光磨料或置换干燥剂。

37. 发明授权

US5474696A Process for refrigeration using 1,1,1,2-tetrafluoro-2-(difluoromethoxy) ethane or 1,1,2,2-tetrafluoro-2-(difluoromethoxy)ethane 失效
标题翻译：使用1,1,1,2-四氟-2-（二氟甲氧基）乙烷或1,1,2,2-四氟-2-（二氟甲氧基）乙烷的制冷方法
公开(公告)号：US5474696A
公开(公告)日：1995-12-12
申请号：US338831
申请日：1994-11-10
申请人： Donna M. Patron , Allen C. Sievert
发明人： Donna M. Patron , Allen C. Sievert
IPC分类号： C09K5/04 , F25B1/00
CPC分类号： C09K5/045 , C09K2205/112 , C09K2205/22
摘要： Producing refrigeration by evaporating the fluorocarbon refrigerants 1,1,1,2- and 1,1,2,2-tetrafluoro-2-(difluoromethoxy)ethane in the vicinity of a body to be cooled.
摘要翻译：通过在待冷却的物体附近蒸发碳氟化合物制冷剂1,1,1,2-和1,1,2,2-四氟-2-（二氟甲氧基）乙烷来生产制冷。

38. 发明授权

US5336801A Processes for the preparation of 2,2,3,3-tetrafluoropropionate salts and derivatives thereof 失效
标题翻译：制备2,2,3,3-四氟丙酸盐及其衍生物的方法
公开(公告)号：US5336801A
公开(公告)日：1994-08-09
申请号：US945074
申请日：1992-09-15
申请人： Carl G. Krespan , Allen C. Sievert
发明人： Carl G. Krespan , Allen C. Sievert
IPC分类号： C07C51/41 , C07C69/63
CPC分类号： C07C69/63 , C07C51/41
摘要： This invention relates to chemical processes for preparing tetrafluoropropionate salts and selected derivatives thereof.
摘要翻译：本发明涉及制备四氟丙酸盐及其选择的衍生物的化学方法。

39. 发明授权

US07504358B2 Nickel-substituted and mixed nickel-and cobalt-substituted chromium oxide compositions, their preparation, and their use as catalysts and catalysts precursors 有权
公开(公告)号：US07504358B2
公开(公告)日：2009-03-17
申请号：US10523226
申请日：2003-08-21
申请人： Velliyur Nott Mallikarjuna Rao , H. David Rosenfeld , Allen C. Sievert , Shekhar Subramoney , Munirpallam Appadorai Subramanian
发明人： Velliyur Nott Mallikarjuna Rao , H. David Rosenfeld , Allen C. Sievert , Shekhar Subramoney , Munirpallam Appadorai Subramanian
IPC分类号： B01J23/00 , C07C19/08 , C07C21/00
CPC分类号： C07C17/37 , B01J23/26 , B01J23/866 , B01J35/0013 , B01J35/002 , B01J35/006 , B01J35/023 , B01J35/1014 , B01J37/0236 , B01J37/03 , C07C17/08 , C07C17/10 , C07C17/206 , C07C17/21 , C07C17/23 , C07C17/25 , C07C17/358 , C07C19/10
摘要： A crystalline alpha-chromium oxide where from about 0.05 atom % to about 2 atom % of the chromium atoms in the alpha-chromium oxide lattice are substituted by nickel atoms, and optionally, additional chromium atoms in the alpha-chromium oxide lattice are substituted by trivalent cobalt atoms (provided that the total amount of the nickel atoms and the trivalent cobalt atoms in the alpha-chromium oxide lattice is no more than 6 atom %) is disclosed. Also disclosed is a chromium-containing catalyst composition comprising as a chromium-containing component the crystalline substituted alpha-chromium oxide; and a method for preparing a composition comprising the crystalline substituted alpha-chromium oxide. The method comprises (a) co-precipitating a solid by adding ammonium hydroxide to an aqueous solution of a soluble divalent nickel salt, a soluble trivalent chromium salt, and optionally, a soluble divalent or trivalent cobalt salt, that contains at least three moles of nitrate per mole of chromium in the solution, has a nickel concentration of from about 0.05 mole % to about 2 mole % of the total of nickel, chromium, and cobalt in the solution, and has a combined concentration of nickel and cobalt of no more than 6 mole % of the total of nickel, chromium, and cobalt in the solution; and after at least three moles of ammonium per mole of chromium has been added to the solution; (b) collecting the co-precipitated solid formed in (a); (c) drying the collected solid; and (d) calcining the dried solid. Also disclosed is a chromium-containing catalyst composition comprising a chromium-containing component prepared by treating said crystalline substituted alpha-chromium oxide with a fluorinating agent; and a process for changing the fluorine distribution (i.e., content and/or arrangement) in a hydrocarbon or halogenated hydrocarbon in the presence of a catalyst. The process involves using as the catalyst a composition comprising the crystalline substituted alpha-chromium oxide and/or the treated substituted alpha-chromium oxide.

40. 发明授权

US07405334B2 Process for the reduction of acidic contaminates in fluorinated hydrocarbons 失效
标题翻译：降低氟化烃中酸性污染物的方法
公开(公告)号：US07405334B2
公开(公告)日：2008-07-29
申请号：US10444487
申请日：2003-05-23
申请人： Velliyur Nott Mallikarjuna Rao , Allen C. Sievert
发明人： Velliyur Nott Mallikarjuna Rao , Allen C. Sievert
IPC分类号： C07C17/38
CPC分类号： C07C17/38
摘要： The present invention relates to processes for reducing the concentration of acidic impurities HF, HCl, HBr, HI, HNO3 and H2SO4 in fluorinated hydrocarbons. The process involves: (i) contacting the fluorinated hydrocarbon with a phosphorous oxyacid salt, and (ii) recovering the fluorinated hydrocarbon having reduced concentration of, or substantially free of, said acidic contaminant, provided that said fluorinated hydrocarbon is not CF3CH2CF3 or CF3CHFCF3.
摘要翻译：本发明涉及用于降低酸性杂质HF，HCl，HBr，HI，HNO 3和H 2 SO 4的浓度的方法氟化烃。该方法包括：（i）使氟化烃与含磷酸盐接触，和（ii）回收具有降低浓度或基本上不含所述酸性污染物的氟化烃，条件是所述氟化烃不是CF 3 3 CF 3或CF 3 CHFCF 3 3。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式