公开(公告)号：US07074973B2

公开(公告)日：2006-07-11

申请号：US10523227

申请日：2003-08-21

Applicant: Mario J. Nappa ,  Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Shekhar Subramoney ,  Munirpallam A. Subramanian ,  Allen C. Sievert

Inventor： Mario J. Nappa ,  Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Shekhar Subramoney ,  Munirpallam A. Subramanian ,  Allen C. Sievert

IPC: C07C17/00

CPC classification number: C07C17/206 ,  B01J23/864 ,  B01J35/002 ,  B01J37/0236 ,  B01J37/03 ,  B01J37/26 ,  C07C17/21 ,  Y02P20/582 ,  C07C19/08

Abstract: A process for the preparation of pentafluoroethane is disclosed which involves contacting a mixture comprising hydrogen fluoride and at least one starting material selected from haloethanes of the formula CX3CHX2 and haloethanes of the formula CX2═CX2, where each X is independently selected from the group consisting of F and Cl (provided that no more than four of X are F), with a fluorination catalyst in a reaction zone to produce a product mixture comprising HF, HCl, pentafluoroethane, underfluorinated halogenated hydrocarbon intermediates and less than 0.2 mole percent chloropentafluoroethane based on the total moles of halogenated hydrocarbons in the product mixture. The process is characterized by the fluorination catalyst comprising (i) a crystalline cobalt-substituted 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) and/or (ii) a fluorinated crystalline oxide of (i).

Abstract translation: 公开了一种制备五氟乙烷的方法，其涉及将包含氟化氢和至少一种选自式CX 3 CHX 2 2的卤代乙烷的起始物质和 式CX 2 -CX 2 X，其中每个X独立地选自F和Cl（条件是不超过四个X为F），与 反应区中的氟化催化剂，以产生基于产物混合物中卤代烃总摩尔数的HF，HCl，五氟乙烷，过氟化卤代烃中间体和小于0.2摩尔％氯五氟乙烷的产物混合物。 该方法的特征在于氟化催化剂，其包含（i）结晶钴取代的α-氧化铬，其中α-氧化铬晶格中约0.05原子％至约6原子％的铬原子被三价钴（Co （ⅰ））和/或（ⅱ）氟化结晶氧化物。

公开(公告)号：US07678949B2

公开(公告)日：2010-03-16

申请号：US11988983

申请日：2006-08-04

Applicant: Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen Capron Sievert ,  Shekhar Subramoney

Inventor： Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen Capron Sievert ,  Shekhar Subramoney

IPC: C07C17/00

CPC classification number: C07C21/18 ,  B01J23/868 ,  B01J37/26 ,  C07C17/21 ,  C07C17/23 ,  C07C17/25 ,  C07C19/10

Abstract: A process for the manufacture of CF3CH═CHF and/or CF3CF═CH2 is disclosed. The process involves (a) reacting HF and chlorine and at least one halopropene of the formula CX3CCI═CCIX (where each X is independently F or Cl) to produce a product including both CF3CCI2CCIF2 and CF3CCIFCCI2F; (b) reacting CF3CCI2CCIF2 and CF3CCIFCCI2F produced in (a) with hydrogen to produce a product including both CF3CH2CHF2 and CF3CHFCH2F; (c) dehydrofluorinating CF3CH2CHF2 and CF3CHFCH2F produced in (b) to produce a product including both CF3CH═CHF and CF3CF═CH2; and (d) recovering CF3CH═CHF and/or CF3CF═CH2 from the product produced in (c). In (a), both CF3CCI2CCIF2 and CF3CCIFCCI2F are produced in the presence of a chlorofluorination catalyst consisting of (i) compositions comprising a crystalline alpha-chromium oxide where at least 0.05 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by copper, and (ii) compositions of (i) which have been treated with a fluorinating agent.

Abstract translation: 公开了制造CF 3 CH = CHF和/或CF 3 CF = CH 2的方法。 该方法包括（a）使HF和氯与至少一种式CX3CCI = CCIX的卤代丙烯（其中每个X独立地为F或Cl）反应以产生包含CF 3 CCl 2 CCIF 2和CF 3 CClFCCI 2 F的产物; （b）使（a）中制备的CF 3 CCl 2 CCIF 2和CF 3 CClFCCI 2 F与氢反应以产生包含CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F的产物; （c）在（b）中制备的CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F脱氟化氟化产生包括CF 3 CH = CHF和CF 3 CF = CH 2的产物; 和（d）从（c）中制备的产物中回收CF 3 CH = CHF和/或CF 3CF≡CH2。 在（a）中，CF3CCI2CCIF2和CF3CCIFCCI2F都是在氯氟化催化剂存在下制备的，所述氯氟化催化剂由（i）包含结晶α-氧化铬的组合物组成，其中至少0.05原子％的α-氧化铬晶格中的铬原子被替换 和（ii）已经用氟化剂处理的（i）的组合物。

公开(公告)号：US07659435B2

公开(公告)日：2010-02-09

申请号：US11988200

申请日：2006-08-04

Applicant: Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen Capron Sievert ,  Shekhar Subramoney

Inventor： Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen Capron Sievert ,  Shekhar Subramoney

IPC: C07C17/00 ,  C07C17/10

CPC classification number: B01J23/868 ,  B01J37/0009 ,  B01J37/03 ,  B01J37/26 ,  C07C17/21 ,  C07C17/23 ,  C07C19/08 ,  C08J9/146 ,  C07C19/10

Abstract: A process is disclosed for the manufacture of CF3CH2CHF2 and CF3CHFCH2F. The process involves (a) reacting hydrogen fluoride, chlorine, and at least one halopropene of the formula CX3CCl═CClX (where each X is independently F or Cl) to produce a product including both CF3CCl2CClF2 and CF3CClFCCl2F; (b) reacting CF3CCl2CClF2 and CF3CClFCCl2F produced in (a) with hydrogen to produce a product including both CF3CH2CHF2, and CF3CHFCH2F; and (c) recovering CF3CH2CHF2 and CF3CHFCH2F from the product produced in (b). In (a), the CF3CCl2CF3 and CF3CClFCClF2 are produced in the presence of a chlorofluorination catalyst including (i) a crystalline alpha-chromium oxide where at least 0.05 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by divalent copper, and/or (ii) a chromium-containing composition of (i) which has been treated with a fluorinating agent.

Abstract translation: 公开了用于制造CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F的方法。 该方法包括（a）使氟化氢，氯和至少一种式CX3CCl-CClX（其中每个X独立地为F或Cl）的卤代丙烯反应以产生包含CF 3 CCl 2 CClF 2和CF 3 CClFCCl 2 F的产物; （b）使（a）中制备的CF 3 CCl 2 CClF 2和CF 3 CClFCCl 2 F与氢反应，生成包含CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F的产物; 和（c）从（b）中制备的产物中回收CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F。 在（a）中，CF 3 CCl 2 CF 3和CF 3 CClFCClF 2在氯氟化催化剂的存在下制备，包括（i）结晶α-氧化铬，其中至少0.05原子％的α-氧化铬晶格中的铬原子被二价铜 ，和/或（ⅱ）已经用氟化剂处理的（ⅰ）的含铬组合物。

公开(公告)号：US20090124836A1

公开(公告)日：2009-05-14

申请号：US11988200

申请日：2006-08-04

Applicant: Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen Capron Sievert ,  Shekhar Subramoney

Inventor： Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen Capron Sievert ,  Shekhar Subramoney

IPC: C07C17/20 ,  C07C19/08

CPC classification number: B01J23/868 ,  B01J37/0009 ,  B01J37/03 ,  B01J37/26 ,  C07C17/21 ,  C07C17/23 ,  C07C19/08 ,  C08J9/146 ,  C07C19/10

Abstract: A process is disclosed for the manufacture of CF3CH2CHF2 and CF3CHFCH2F. The process involves (a) reacting hydrogen fluoride, chlorine, and at least one halopropene of the formula CX3CCI═CCIX (where each X is independently F or CI) to produce a product including both CF3CCI2CCIF2 and CF3CCIFCCI2F; (b) reacting CF3CCI2CCIF2 and CF3CCIFCCI2F produced in (a) with hydrogen to produce a product including both CF3CH2CHF2, and CF3CHFCH2F; and (c) recovering CF3CH2CHF2 and CF3CHFCH2F from the product produced in (b). In (a), the CF3CCI2CF3 and CF3CCIFCCIF2 are produced in the presence of a chlorofluorination catalyst including (i) a crystalline alpha-chromium oxide where at least 0.05 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by divalent copper, and/or (ii) a chromium-containing composition of (i) which has been treated with a fluorinating agent.

Abstract translation: 公开了用于制造CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F的方法。 该方法包括（a）使氟化氢，氯和至少一种式CX3CCI-CCIX（其中每个X独立地为F或Cl）的卤代丙烯反应以产生包含CF 3 CCl 2 CCIF 2和CF 3 CClFCCI 2 F的产物; （b）使（a）中制备的CF 3 CCl 2 CCIF 2和CF 3 CClFCCI 2 F与氢反应以产生包含CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F的产物; 和（c）从（b）中制备的产物中回收CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F。 在（a）中，CF 3 CCl 2 CF 3和CF 3 CClFCCIF 2在氯氟化催化剂存在下制备，包括（i）α-氧化铬晶格中至少0.05原子％的铬原子被二价铜取代的结晶α-氧化铬 ，和/或（ⅱ）已经用氟化剂处理的（ⅰ）的含铬组合物。

公开(公告)号：US20090118554A1

公开(公告)日：2009-05-07

申请号：US11988983

申请日：2006-08-04

Applicant: Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen Capron Sievert ,  Shekhar Subramoney

Inventor： Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen Capron Sievert ,  Shekhar Subramoney

IPC: C07C17/21

CPC classification number: C07C21/18 ,  B01J23/868 ,  B01J37/26 ,  C07C17/21 ,  C07C17/23 ,  C07C17/25 ,  C07C19/10

Abstract: A process for the manufacture of CF3CH═CHF and/or CF3CF═CH2 is disclosed. The process involves (a) reacting HF and chlorine and at least one halopropene of the formula CX3CCI═CCIX (where each X is independently F or Cl) to produce a product including both CF3CCI2CCIF2 and CF3CCIFCCI2F; (b) reacting CF3CCI2CCIF2 and CF3CCIFCCI2F produced in (a) with hydrogen to produce a product including both CF3CH2CHF2 and CF3CHFCH2F; (c) dehydrofluorinating CF3CH2CHF2 and CF3CHFCH2F produced in (b) to produce a product including both CF3CH═CHF and CF3CF═CH2; and (d) recovering CF3CH═CHF and/or CF3CF═CH2 from the product produced in (c). In (a), both CF3CCI2CCIF2 and CF3CCIFCCI2F are produced in the presence of a chlorofluorination catalyst consisting of (i) compositions comprising a crystalline alpha-chromium oxide where at least 0.05 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by copper, and (ii) compositions of (i) which have been treated with a fluorinating agent.

Abstract translation: 公开了制备CF 3 CH-CHF和/或CF 3 CF-CH 2的方法。 该方法包括（a）使HF和氯以及至少一种式CX3CCI-CCIX（其中每个X独立地为F或Cl）的卤代丙烯反应，以产生包含CF 3 CCl 2 CCIF 2和CF 3 CClFCCI 2 F的产物; （b）使（a）中制备的CF 3 CCl 2 CCIF 2和CF 3 CClFCCI 2 F与氢反应以产生包含CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F的产物; （c）在（b）中制备的CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F脱氟化氢，制得包含CF 3 CH-CHF和CF 3 CF-CH 2的产物; 和（d）从（c）中制备的产物中回收CF 3 CH-CHF和/或CF 3 CF-CH 2。 在（a）中，CF3CCI2CCIF2和CF3CCIFCCI2F都是在氯氟化催化剂存在下制备的，所述氯氟化催化剂由（i）包含α-氧化铬晶格中的至少0.05原子％的铬原子的结晶α-氧化铬的组合物组成 和（ii）已经用氟化剂处理的（i）的组合物。

公开(公告)号：US07504358B2

公开(公告)日：2009-03-17

申请号：US10523226

申请日：2003-08-21

Applicant: Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen C. Sievert ,  Shekhar Subramoney ,  Munirpallam Appadorai Subramanian

Inventor： Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen C. Sievert ,  Shekhar Subramoney ,  Munirpallam Appadorai Subramanian

IPC: B01J23/00 ,  C07C19/08 ,  C07C21/00

CPC classification number: 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

Abstract: 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.

公开(公告)号：US20090043138A1

公开(公告)日：2009-02-12

申请号：US11988259

申请日：2006-08-04

Applicant: Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen Capron Sievert ,  Shekhar Subramoney

Inventor： Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen Capron Sievert ,  Shekhar Subramoney

IPC: C07C17/23

CPC classification number: B01J23/868 ,  B01J37/0009 ,  B01J37/03 ,  B01J37/26 ,  C07C17/206 ,  C07C17/21 ,  C07C17/23 ,  C07C17/25 ,  C07C17/354 ,  C07C19/08 ,  C07C21/18 ,  C07C19/10

Abstract: A process for the manufacture of CF3CH═CHF and/or CF3CH═CF2 is disclosed. The process involves involves (a) reacting HF and at least one halopropene of the formula CX3CCI═CCIX (where each X is independently F or CI) to produce a product including both CF3CCI═CF2 and CF3CHCICF3; (b) reacting CF3CCI═CF2 and/or CF3CHCICF3 produced in (a) with hydrogen to produce a product including CF3CH2CHF2 and/or CF3CH2CF3; (c) dehydrofluorinating CF3CH2CHF2 and/or CF3CH2CF3 produced in (b) to produce a product comprising CF3CH═CHF and/or CF3CH═CF2; and (d) recovering CF3CH═CHF and/or CF3CH═CF2 from the product produced in (c). In (a), the CF3CCI═CF2 and CF3CHCICF3 are produced in the presence of a fluorination catalyst comprising at least one chromium-containing component selected from (i) a crystalline alpha-chromium oxide where at least 0.05 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by divalent copper, and (ii) a chromium-containing composition of (i) which has been treated with a fluorinating agent.

Abstract translation: 公开了制造CF 3 CH-CHF和/或CF 3 CH-CF 2的方法。 该方法涉及（a）使HF和至少一种式CX3CCI-CCIX的卤代丙烯（其中每个X独立地为F或Cl）反应以产生包含CF 3 CCl-CF 2和CF 3 CHCICF 3的产物; （b）使（a）中制备的CF 3 CCl-CF 2和/或CF 3 CHCICF 3与氢反应以产生包含CF 3 CH 2 CHF 2和/或CF 3 CH 2 CF 3的产物; （c）在（b）中制备的CF 3 CH 2 CHF 2和/或CF 3 CH 2 CF 3脱氟化氢以产生包含CF 3 CH-CHF和/或CF 3 CH-CF 2的产物; 和（d）从（c）中制备的产物中回收CF 3 CH-CHF和/或CF 3 CH-CF 2。 在（a）中，CF 3 CCl-CF 2和CF 3 CHCICF 3在含有至少一种含铬组分的氟​​化催化剂的存在下制备，所述含铬组分选自（i）结晶α-氧化铬，其中至少0.05原子％ 所述α-氧化铬晶格被二价铜取代，和（ii）已经用氟化剂处理的（i）的含铬组合物。

公开(公告)号：US20080032052A1

公开(公告)日：2008-02-07

申请号：US11888382

申请日：2007-08-01

Applicant: Kostantinos Kourtakis ,  Mark McKeever ,  Paul Bekiarian ,  Shekhar Subramoney ,  Maria Petrucci-Samija

Inventor： Kostantinos Kourtakis ,  Mark McKeever ,  Paul Bekiarian ,  Shekhar Subramoney ,  Maria Petrucci-Samija

IPC: C08L27/12 ,  B05D3/00 ,  C08K3/36

CPC classification number: G02B1/118 ,  C08K5/0025 ,  C08K5/5425 ,  G02B1/11 ,  C08L27/12

Abstract: A low refractive index composition is provided comprising the reaction product of: a fluoroelastomer having at least one cure site; a multiolefinic crosslinker; an oxysilane having at least one functional group selected from the group consisting of acryloyloxy and methacryloyloxy, and at least one of a hydrolysis and condensation product of the oxysilane; a free radical polymerization initiator; and a plurality of solid nanosilica particles having at least about 20% but less than 100% of reactive silanols functionalized with an unreactive substituent. The present invention further provides a liquid mixture for forming a low refractive index composition, an article including a substrate having an anti-reflective coating, and a method for forming an anti-reflective coating on a substrate.

Abstract translation: 提供了低折射率组合物，其包含以下反应产物：具有至少一个固化位点的含氟弹性体; 多烯烃交联剂; 具有至少一个选自丙烯酰氧基和甲基丙烯酰氧基的官能团的氧基硅烷，以及所述氧化硅烷的水解和缩合产物中的至少一种; 自由基聚合引发剂; 和多个具有至少约20％但小于100％的用非反应性取代基官能化的活性硅烷醇的固体纳米二氧化硅颗粒。 本发明还提供了一种用于形成低折射率组合物的液体混合物，包括具有抗反射涂层的基材的制品，以及在基材上形成抗反射涂层的方法。

公开(公告)号：US06923925B2

公开(公告)日：2005-08-02

申请号：US10183710

申请日：2002-06-27

Applicant: Jing C. Chang ,  Joseph V. Kurian ,  Shekhar Subramoney

Inventor： Jing C. Chang ,  Joseph V. Kurian ,  Shekhar Subramoney

IPC: D01F6/62 ,  D01F6/92 ,  D03D15/00 ,  D01D5/34 ,  D01F8/14 ,  D02G1/02 ,  D02G3/02 ,  D02G3/24

CPC classification number: D01F6/92 ,  Y10T428/2929 ,  Y10T428/2964

Abstract: A process for preparing poly(trimethylene dicarboxylate) multifilament yarns and monofilaments. One process for preparing poly(trimethylene dicarboxylate) multifilament yarns includes (a) providing a polymer blend including poly(trimethylene dicarboxylate) and about 0.1 to about 10 weight % styrene polymer, by weight of the polymer in the polymer blend, (b) spinning the polymer blend to form poly(trimethylene dicarboxylate) multiconstituent filaments containing dispersed styrene polymer, and (c) processing the multiconstituent filaments into poly(trimethylene dicarboxylate) multifilament yarn including poly(trimethylene dicarboxylate) multiconstituent filaments containing styrene polymer dispersed throughout the filaments. Another process includes spinning at a speed of at least 3,000 m/m and processing a blend including poly(trimethylene dicarboxylate) to form partially oriented poly(trimethylene dicarboxylate) multifilament yarn. A poly(trimethylene terephthalate) yarn including poly(trimethylene terephthalate) multiconstituent filament containing styrene polymer dispersed throughout the multiconstituent filament. The invention is also directed to uses of the filament yarns and monofilament.

Abstract translation: 制备聚（三亚甲基二羧酸酯）复丝纱和单丝的方法。 一种制备聚（三亚甲基二羧酸酯）复丝纱线的方法包括（a）按聚合物共混物中聚合物的重量计提供包含聚（三亚甲基二羧酸酯）和约0.1至约10重量％苯乙烯聚合物的聚合物共混物，（b）纺丝 聚合物共混物以形成含有分散的苯乙烯聚合物的聚（三亚甲基二羧酸酯）多构成长丝，和（c）将多成分长丝加工成聚（三亚甲基二羧酸酯）复丝纱，其包含分散在整个长丝中的聚苯乙烯聚合物的聚（三亚甲基二羧酸酯）多取向丝。 另一种方法包括以至少3,000m / m的速度纺丝并加工包括聚（三亚甲基二羧酸酯）的共混物以形成部分取向的聚（三亚甲基二羧酸酯）复丝纱线。 聚对苯二甲酸丙二醇酯聚对苯二甲酸乙二醇酯纱线，其包含聚苯乙烯聚合物分散在整个多成分丝中的聚（对苯二甲酸丙二醇酯）多取向丝。 本发明还涉及长丝纱和单丝的用途。

公开(公告)号：US08053611B2

公开(公告)日：2011-11-08

申请号：US11988258

申请日：2006-08-04

Applicant: Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen Capron Sievert ,  Shekhar Subramoney

Inventor： Velliyur Nott Mallikarjuna Rao ,  H. David Rosenfeld ,  Allen Capron Sievert ,  Shekhar Subramoney

IPC: C07C17/00

CPC classification number: B01J37/26 ,  B01J23/868 ,  C07C17/21 ,  C07C17/23 ,  C07C19/08 ,  C07C21/18 ,  C07C19/10

Abstract: A process is disclosed for the manufacture of 1,1,1,3,3,3-hexafluoropropane and 1,1,1,2,3,3-hexafluoropropane, hexafluoropropene and/or 1,1,1,2,3,3,3-heptafluoropropane. The process involves (a) reacting HF, Cl2, and at least one halopropene of the formula CX3CCl═CClX (where each X is independently F or Cl) to produce a product comprising CF3CCl2CF3 and CF3CClFCClF2; (b) reacting CF3CCl2CF3 and CF3CClFCClF2 produced in (a) with hydrogen, optionally in the presence of HF, to produce a product comprising CF3CH2CF3 and at least one of CHF2CHFCF3, CF3CF═CF2 and CF3CFHCF3; and (c) recovering from the product produced in (b), CF3CH2CF3 and at least one of CHF2CHFCF3, CF3CF═CF2 and CF3CFHCF3. In (a), the CF3CCl2CF3 and CF3CClFCClF2 are produced in the presence of a chlorofluorination catalyst including (i) a crystalline alpha-chromium oxide where at least 0.05 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by divalent copper, and/or (ii) a chromium-containing composition of (i) which has been treated with a fluorinating agent.

Abstract translation: 公开了用于制造1,1,1,3,3,3-六氟丙烷和1,1,1,2,3,3-六氟丙烷，六氟丙烯和/或1,1,1,2,3， 3,3-七氟丙烷。 该方法包括（a）使HF，Cl 2和至少一种式CX3CCl = CClX（其中每个X独立地为F或Cl）的卤代丙烯反应以产生包含CF 3 CCl 2 CF 3和CF 3 CClFCClF 2的产物; （b）使（a）中制备的CF 3 CCl 2 CF 3和CF 3 CClFCClF与任选在HF存在下的氢反应，生成包含CF 3 CH 2 CF 3和CHF 2 CHFCF 3，CF 3CF≡CF2和CF 3 CFHCF 3中的至少一种的产物; 和（c）从（b）中产生的产物，CF 3 CH 2 CF 3和CHF 2 CHFCF 3，CF 3CF≡CF2和CF 3 CFHCF 3中的至少一种中回收。 在（a）中，CF 3 CCl 2 CF 3和CF 3 CClFCClF 2在氯氟化催化剂的存在下制备，包括（i）结晶α-氧化铬，其中至少0.05原子％的α-氧化铬晶格中的铬原子被二价铜 ，和/或（ⅱ）已经用氟化剂处理的（ⅰ）的含铬组合物。