СПОСОБ ПОЛУЧЕНИЯ 1,1-ДИФТОРЭТАНА

FIELD: chemical technology. SUBSTANCE: invention relates to synthesis of halide-substituted hydrocarbons, in part, to synthesis of 1,1-difluoroethane from chloroethylene and anhydrous hydrogen fluoride in liquid phase at temperature from 30 to 160 C. Catalytic system comprises tin catalyst and at least one compound taken among the group including alkaline metal halides and saturated halogenated hydrocarbons and taken in amount 0.001-5 mole/mole of tin catalyst. Tin catalyst is taken among the following group: tin halide, tin oxyhalide, organotin compound. EFFECT: high yield of end compound. 10 cl, 4 tbl, 1 dwg 87918 1Сс ПЧ сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ "” 2 187 488 (51) МПК? 13) С2 С 07С 17/21, 19/08 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98114850/04, 03.01.1997 (24) Дата начала действия патента: 03.01.1997 (30) Приоритет: 05.01.1996 Ш$ 08/583,331 07.02.1996 ЦЗ 08/597,745 02.01.1997 ЦЗ 08/778,440 (43) Дата публикации заявки: 20.06.2000 (46) Дата публикации: 20.08.2002 (56) Ссылки: 4$ 4968850 А, 06.11.1990. ЗЦ 466202 А, 05.04.1975. ЕР 0637759 АЛ, 08.02.1995. (85) Дата перевода заявки РСТ на национальную фазу: 05.08.1998 (86) Заявка РСТ: 1$ 9700287 (03.01.1997) (87) Публикация РСТ: М/О 97/25300 (17.07.1997) (98) Адрес для переписки: 129010, Москва, ул. Б.Спасская 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", Н.Г.Лебедевой (71) Заявитель: Е.И. ДЮПОН ДЕ НЕМУР ЭНД КОМПАНИ (15) (72) Изобретатель: НАППА Марио Джозеф (1$), ВИЛЬЯМС Вильям Роберт (1$) (73) Патентообладатель: Е.И. ДЮПОН ДЕ НЕМУР ЭНД КОМПАНИ (15$) (74) Патентный поверенный: Лебедева Наталья Георгиевна (54) СПОСОБ ПОЛУЧЕНИЯ 1,1-ДИФТОРЭТАНА (57) Изобретение относится к получению галоидзамещенных углеводородов, В частности к получению 1,1-дифторэтана из хлорэтилена и безводного — Ффтористого водорода в жидкой фазе при температуре от 30 до 160°С. Каталитическая система включает оловянный катализатор и по меньшей мере одно соединение, ...

СПОСОБЫ ПОЛУЧЕНИЯ 2-ХЛОР-1,1,1,2,3,3,3-ГЕПТАФТОРПРОПАНА, ГЕКСАФТОРПРОПЕНА И 1,1,1,2,3,3,3-ГЕПТАФТОРПРОПАНА

Изобретение относится к способу получения 2-хлор-1,1,1,2,3,3,3-гептафторпропана, который включает (а) контактирование смеси, содержащей фтороводород, хлор и, по меньшей мере, одно исходное вещество, выбранное из группы, состоящей из галогенпропенов формулы СХ3CCl=СХ2 и галогенпропанов формулы CX3CClYCX3, где каждый X независимо представляет F или Cl и Y представляет Н, Cl и F (при условии, что число X и Y, которые являются F, в целом не более шести) с катализатором хлорфторирования в зоне реакции с получением продукта в виде смеси, содержащей CF3CClFCF3, HCl, HF и недостаточно фторированные галогенированные углеводородные промежуточные соединения и (b) разделение полученного продукта с выделение CF3CClFCF3. Указанный катализатор хлорфторирования, содержащий, по меньшей мере, один содержащий хром компонент, выбранный из (i) кристаллического альфа-оксида хрома, где, по меньшей мере, 0,05 атом.% атомов хрома в кристаллической решетке альфа-оксида хрома заменено на никель, трехвалентный кобальт ...

СПОСОБ ФТОРИРОВАНИЯ НИЗШИХ АЛИФАТИЧЕСКИХ ФТОРУГЛЕВОДОРОДОВ

Использование: в качестве хладагента, распыляющего агента, реактивного топлива. Реагент 1 низший алифатический фторуглеводород. Реагент 2 фтористый водород. Условия синтеза: катализатор фторирования - частично фторированный оксид хрома, содержащий металлсодержащую добавку рутений или платину, 290 380°С. Катализатор обладает высокой производительностью и высоким сроком службы. 5 з.п. ф-лы.

СПОСОБ ПОЛУЧЕНИЯ 1,1,1-ТРИФТОР-2-ХЛОРЭТАНА

При получении 1,1,1-трифтор-2-хлорэтана (HCFC 133а) посредством гидрофторирования в газовой фазе трихлороэтилена (ТХЭ) в присутствии носимого катализатора на основе Cr2O3 можно продлить срок службы катализатора подачей в реактор для гидрофторирования параллельно с трихлорэтиленом небольших количеств (7 - 25 мол.% по отношению к смеси с трихлорэтиленом) 133а. 1, 1,1-трифтор-2-хлорэтан используется как растворитель. 2 з.п.ф-лы.

СПОСОБ ПОЛУЧЕНИЯ 1,1,1,2-ТЕТРАФТОРЭТАНА

Использование: 1,1,1,2-тетрафторэтан используется как растворитель, хладагент, не разрушающий озоновый слой атмосферы. 1,1,1,2-тетрафторэтан получают из трихлорэтилена с помощью двухступенчатого способа, включающего взаимодействие трихлорэтилена с фтористым водородом в первом реакторе с образованием 1,1,1-трифтор-2-хлорэтана и его взаимодействие с фтористым водородом в другом реакторе с образованием 1,1,1,2-тетрафторэтана. 9 з. п. ф-лы, 2 табл.

CПOCOБ ПOЛУЧEHИЯ 1,1,1,2-TETPAФTOPЭTAHA

CПOCOБ ПOЛУЧEHИЯ 1,1,1,2-TETPAФTOPЭTAHA

Использование: 1,1,1,2-тетрафторэтан используетс  в качестве растворител , не разрушающего озоновый слой земли. Услови  синтеза: усовершенствованный способ получени  1,1,1,2-тетрафторэтана осуществл етс  путем этапов хлорфторировани , хлорфторэтанов или хлорфторэтиленов с использованием CI и HF с последующим гидрогенолизом полученных продуктов, усовершенствование которого заключаетс  в использовании избытка HF и п рециркул ции непрореаги ровавших соединений и побочных продуктов на этапе хлорфторировани . Катализатор - фтористый AI или фторированна  окись AI. 21 пр. 1 тзбл.

VERFAHREN ZUR HERSTELLUNG VON 1,1,1,2,2-PENTAFLUOROETHAN, VERFAHREN ZUR HERSTELLUNG VON 2,2-DICHLORO-1,1,1-TRIFLUOROETHAN UND VERFAHREN ZUR REINIGUNG VON 1,1,1,2,2-PENTAFLUOROETHAN

VERFAHREN ZUR HERSTELLUNG VON 2-CHLOR-1,1,1-TRIFLUORETHAN

Verfahren zur Herstellung von 1,1,1-Trifluorchlorethan und 1,1,1,2-Tetrafluorethan

Verfahren zur Herstellung von 1,1,1,2-Tetrafluorethan.

VERFAHREN ZUR HERSTELLUNG VON FLUORIERTEN KOHLENWASSERSTOFFEN

Verfahren zum Halogen-Fluor-Austausch in organischen Verbindungen und Katalysatoren hierzu.

Verfahren zur Herstellung von Chlor-Fluor-Butenen

Verfahren zur geometrischen Isomerisation halogenierter Olefine

Verfahren zur Herstellung von fluorierten organischen Verbindungen, bei dem man mindestens eine Verbindung der Formel (I) in mindestens eine Verbindung der Formel (II) umwandelt, wobei X, Y und Z jeweils unabhängig für H, F, Cl, I oder Br stehen und m jeweils für 1, 2 oder 3 steht und n für 0 oder 1 steht.

Verfahren zur Herstellung fluorhaltiger aliphatischer Verbindungen

MANUFACTURE OF 1,1-DIFLUOROETHNE

... 1343001 1,1-Difluoroethane SOLVAY & CIE 10 April 1972 [28 April 1971] 16465/72 Heading C2C 1,1-Difluoroethane is prepared by reacting vinyl chloride with hydrogen fluoride in the vapour phase at a temperature of from 100‹ to 400‹ C. in the presence of a catalyst comprising a vanadium compound supported on active carbon. The catalyst is preferably a halide or oxyhalide of tri-, tetra- or pentavalent vanadium and may be treated with anhydrous hydrogen fluoride gas before reaction.

A process for the preparation of 1, 1, 1, 2-tetrafluoroethane

The invention relates to a process for preparing a co-precipitated Cr2O3/A12O3 catalyst promoted by zinc, said process comprising co-precipitation of chromium and aluminum metal hydroxides from corresponding trivalent metal salt solutions using NH4OH, NaOH or KOH as a base and followed by calcination to give mixed oxide precatalyst in amorphous form which is impregnated with an activity promoting amount of Zinc compound. The catalyst is used for the preparation of HFL-134a by fluorination of trichloroethylene and fluorination of the intermediate product of the former reaction (HCFC-133A).

Improvements in and relating to fluorination

Vinyl fluoride and 1,1-difluoroethane are obtained by passing a mixture of ethylene dichloride or vinyl chloride or both and hydrogen fluoride over a chromium oxide catalyst at 200 DEG to 500 DEG C. From 2 to 20 moles of hydrogen fluoride may be used per mole of ethylene dichloride and/or vinyl chloride. Vinyl chloride and 1,1-difluoroethane may be separated from the reaction product and recycled. The catalyst may be granular or shaped hydrous chromium oxide, or co-precipitated chromium oxide and alumina, or chromium oxide on an alumina support. Examples are given.

Catalytic fluorination of organic compounds

Fluorinated and/or fluorochlorinated aliphatic hydrocarbons are prepared by passing a chlorinated aliphatic hydrocarbon with gaseous hydrofluoric acid and, optionally, chlorine at a temperature of 100 DEG to 500 DEG C. over a catalyst containing thorium fluoride. An inert gas may also be present. The catalyst may be supported, e.g. on active carbon, and may be combined with aluminium and/or chromium fluoride and, optionally, with one or more oxides or basic fluorides of aluminium, chromium or thorium. Examples are given.ALSO:A catalyst for the fluorination of chlorinated aliphatic hydrocarbons (see Division C2) comprises thorium fluoride which may be supported on an inert support such as active carbon or may be combined with fluorides of aluminium or chromium and/or one or more oxides or basic fluorides of metals such as chromium, aluminium and thorium. Various methods of preparation are described. The catalyst may be re-activated by heating at a temperature below 600 DEG C. in a light ...

CHEMICAL PROCESS

FLUORINATION CATALYST AND PROCESS

A process for the manufacture of aliphatic fluorine compounds

Aliphatic fluorine compounds are prepared by reacting a halogenated aliphatic hydrocarbon which contains at least one halogen atom, other than fluorine, with hydrogen fluoride in the presence of an antimony compound and metallic aluminium. Suitable catalysts are antimonous halides in the presence of chlorine or antimonic halides. The reaction may be conveniently carried out in an aluminium vessel which is found to accelerate the reaction rate and also to be corroded less easily than steel or copper vessels. The reaction may also be activated by the addition of 0,1 to 10% of an arsenic halide e.g. the trichloride or trifluoride based on the weight of the antimony compound. In examples (1) trifluorodichloroethane and difluorotrichloroethane are prepared from pentachlaroethane (2) (3) tetrafluorodichloroethane and trifluorotrichloroethane are prepared from hexachloroethane, (4) methylene difluoride is prepared from methylene dichloride. (5) 1:1:1-trifluoroethyl chloride is prepared from trichlorethylene ...

Improvement in fluorination of trichloroethylene

... 1,1,1-Trifluoro-2-halo-ethanes are prepared by passing a mixture of hydrogen fluoride and trichloroethylene or 1,1-dichloro-2-bromo ethylene into contact with a basic chromium fluoride catalyst for between 1 and 100 seconds and at a temperature of at least 150 DEG C. to convert at least part of the compound to the 1,1,1-trifluoro-2-halo-ethane. The reaction preferably takes place at 300-400 DEG C. for a time of 2 to 10 seconds and the 1,1,1-trifluoro-2-halo-ethane may be fractionated from the resulting mixture. The catalyst is prepared by heating hydrated chromium fluoride in the presence of oxygen and is described and claimed in Specification 790,335. The ratio of hydrogen fluoride to olefin is preferably 4 : 1 to 8 : 1. In the examples: (1) trichloroethylene is passed with 8 mols. HF over a catalyst at 350 DEG C. for a contact time of 2.9 seconds to give a mixture containing 1,1,1,2-tetrafluoroethane pentafluoroethane, 1,1,1-trifluoro - 2 - chloro - ethane 1 - fluoro - 1,2 - dichloroethylene ...

LIQUID PHASE PROCEDURE FOR THE PRODUCTION OF HCFC 123

PROCEDURE FOR THE PRODUCTION OF HALOGENIERTEN ETHANEN

PROCEDURE FOR THE PRODUCTION OF 1,1,1,2 - TETRAFLUORETHAN

PROCEDURE FOR FLUORIDATE

PROCEDURE FOR the PRODUCTION OF 1-CHLOR-1 FLUORETHAN AND/OR 1,1-DIFLUORETHAN

PROCEDURE FOR THE PRODUCTION OF 1,1,1,3,3 - PENTAFLUOROPROPAN

PROCEDURE FOR THE PRODUCTION OF PENTAFLUORETHAN (R 125)

Process for the manufacture of 1,1,1,2-tetrafluoroethane

Process for producing 1,1,1,3,3-pentafluoropropane

Gas phase catalytic fluorination of halogenated hydrocarbons

FLUORINATION CATALYST AND PROCESS

HALOCARBON PRODUCTION PROCESSES, HALOCARBON SEPARATION PROCESSES, AND HALOCARBON PRODUCTION SYSTEMS

PROCESSES FOR SYNTHESIS OF 1,3,3,3-TETRAFLUOROPROPENE AND 2,3,3,3-TETRAFLUOROPROPENE

Disclosed in one embodiment is a process for the synthesis of 1,3,3,3- tetrafluoropropene that comprises (a) reacting a compound of formula (I) X1X2 with a compound of formula (II) CF3CH=CH2 to produce a reaction product comprising a compound of formula (III) CF3CHX1CH2X2, wherein X1 and X2 are each independently selected from the group consisting of hydrogen, chlorine, bromine and iodine, provided that X1 and X2 are not both hydrogen; (b) when X2 in formula (III) is not fluorine, fluorinating the compound of formula (III) to produce a reaction product comprising a compound of formula (III) wherein X1 is as described above and X2 is fluorine; and (c) exposing said compound of formula (III) to reaction conditions effective to convert said compound to 1,3,3,3,-tetrafluoropropene. In another embodiment, the process comprises (a) reacting chlorine with a compound of formula (I) CH3CH=CH2 to produce a reaction product comprising a compound of formula (II) CCI3CHC1CH2C1; (b) fluorinating the ...

PROCESS FOR THE PREPARATION OF HALOGENATED ETHANES

A process for preparing halogenated ethanes, particularly pentafluoroethane, from a mixture produced by the reaction of perchloroethylene, hydrogen fluoride and a recycle stream. The preferred process utilizes phase separation techniques to ensure that less than the azzeotropic amount of HF is included in the product stream, thereby minimizing the hydrogen fluoride that is carried off with the desired products after they are separated from the reaction mixture, and at the same time prevents undesirable byproducts from being recycled to the reaction.

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

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 .alpha.-chromium oxide composition, a ZnCr2O4/crystalline .alpha.-chromium oxide composition which has been treated ...

PROCESS FOR THE PREPARATION OF 1,1,1,3,3-PENTAFLUOROPROPANE AND 1,1,1,3,3,3-HEXAFLUOROPROPANE

... ²²²A process for the manufacture of CF3CH2CHF2 and CF3CH2CF3 is disclosed. The ²process involves (a) reacting HF and at least one halopropene of the formula ²CX3CCl=CClX (where each X is independently F or Cl) to produce a product ²including both CF3CCl=CF2 and CF3CHClCF3; (b) reacting CF3CCl=CF2 and ²CF3CHClCF3 produced in (a) with hydrogen to produce a product including both ²CF3CH2CHF2 and CF3CH2CF3; and (c) recovering CF3CH2CHF2 and CF3CH2CF3 from the ²product produced in (b). In (a), the CF3CCl=CF2 and CF3CHClCF3 are produced in ²the presence of a fluorination catalyst including a ZnCr2O4/crystalline ².alpha.-chromium oxide composition, a ZnCr2O4/crystalline .alpha.-chromium ²oxide composition which has been treated with a fluorinating agent, a zinc ²halide/.alpha.-chromium oxide composition and/or a zinc halide/.alpha.-²chromium oxide composition which has been treated with a fluorinating agent.² ...

PROCESS FOR THE PREPARATION OF 1,1,1,3,3-PENTAFLUOROPROPANE AND 1,1,1,2,3-PENTAFLUOROPROPANE

... ²²²A process is disclosed for the manufacture of CF3CH2CHF2 and CF3CHFCH2F. The ²process involves (a) reacting hydrogen fluoride, chlorine, and at least one ²halopropene of the formula CX3CCl=CClX (where each X is independently F or Cl) ²to produce a product including both CF3CCl2CClF2 and CF3CClFCCl2F; (b) ²reacting CF3CCl2CClF2 and CF3CClFCCl2F produced in (a) with hydrogen to ²produce a product including both CF3CH2CHF2, and CF3CHFCH2F; and (c) ²recovering CF3CH2CHF2 and CF3CHFCH2F from the product produced in (b). In (a), ²the CF3CCl2CClF2 and CF3CClFCCl2F are produced in the presence of a ²chlorofluorination catalyst including a ZnCr2O4/crystalline .alpha.-chromium ²oxide composition, a ZnCr2O4/crystalline .alpha.-chromium oxide composition ²which has been treated with a fluorinating agent, a zinc halide/.alpha.-²chromium oxide composition and/or a zinc halide/.alpha.-chromium oxide ²composition which has been treated with a fluorinating agent.² ...

INTEGRATED PROCESS FOR MAKING HCFO-1233ZD AND HFC-245FA

A process is described wherein otherwise unusable by-products from a process for the manufacture of trans HCFO-1233zd(E) are converted to a valuable product by introducing them into a process for the production of HFC-245fa. The process includes the catalytic hydrofluorination of a reaction mixture comprising the HCFO-1233zd production by-products.

METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS

Disclosed is a method for producing a fluorinated organic compound of formula (II): CF3CF=CH2 (II), also known as HFO-1234yf. The method typically comprises converting a compound of Formula (IB): CF3CFC1CH3 (IB), also known as HCFC-244bb, wherein the converting step comprises a gas phase reaction of HCFC-244bb inside a reactor. The reaction occurs at a reaction temperature of from 200 C to 800 C. Preferably, the method comprises a pre-heating step before injecting a stream of gas phase HCFC-244bb into the vessel. Preferably, the method is a direct conversion of HCFC-244bb into HFO-1234yf.

PRODUCTION OF TETRAFLUOROETHANES

... 2115430 9325506 PCTABS00028 A process for the production of tetrafluoroethanes which comprises contacting 1,1,2,2-tetrachloroethane with hydrogen fluoride over a fluorination catalyst/agent in the liquid phase or in the vapour phase at 200 ·C to 400 ·C. 1,1,2,2-tetrafluoroethane produced by the process may be isomerised to 1,1,1,2-tetrafluoroethane. The 1,1,2,2-tetrachloroethane may be co-fed with trichloroethylene to a vapour-phase process for producing 1,1,1,2-tetrafluoroethane from trichloroethylene.

PROCESS FOR THE FLUORINATION OF PERCHLOROETHYLENE OR PENTACHLOROETHANE

L'invention concerne la fluoration catalytique du perchloréthylène ou du pentachloréthane en phase gazeuse au moyen d'acide fluorhydrique. On utilise un catalyseur mixte composé d'oxydes, d'halogénures et/ou d'oxyhalogénures de nickel et de chrome, déposés sur un support constitué de fluorure d'aluminium ou d'un mélange de fluorure d'aluminium et d'alumine, ledit catalyseur étant préalablement activé par séchage et par fluoration au moyen d'acide fluorhydrique.

PROCESS FOR THE PREPARATION OF 1,1,1,3,3,3-HEXAFLUOROPROPANE AND 2-CHLORO-1,1,1,3,3,3-HEXAFLUOROPROPANE

PROCESS FOR PREPARING 1,1-DIFLUOROETHANE

L'invention concerne un procédé pour la préparation de 1,1-difluo-roéthane par réaction de chlorure de vinyle avec du fluorure d'hydrogène, en présence de perchloroéthylène ou de 1,1,1,3,3-pentafluorobutane.

VAPORISATION OF LIQUIDS

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 (30) (figure 2). In another embodiments (figures 5-7), the first compound (146, 148) is injected into a hot gaseous stream and undergoes atomisation into droplets which then vaporise within the gaseous stream. The second compound (160,162) 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 arc allowed to reside in contact with such surfaces.

PREPARATION OF ANHYDROUS NIOBIUM AND TANTALUM PENTAFLUORIDES

A method of producing an anhydrous niobium or tantalum pentafluoride involvi ng reacting the corresponding pentoxide or oxyhalide with an excess of anhydrous hydrogen fluoride in the presence o f a sufficient dehydrating agent (e.g,, COCI2, SOC12 or SO~C12) to react with any water formed. Such a process is useful to produ ce a catalytically active anhydrous niobium or tantalum pentafluoride in essentially a single liquid phase reaction step. ...

PROCESS FOR PREPARING 1,1,1-TRIFLUORO-2-CHLOROETHANE

In the preparation of 1,1,1-trifluoro-2-chloroethane (HCFC 133a) by means of hydrofluorination in the gas phase of trichloroethylene (TCE) in the presence of a carried catalyst based on Cr2O3 it is possible to prolong the catalyst life by feeding to the hydrofluorination reactor, along with trichloroethylene, little amounts (7-25 mols % calculated on the mixture with trichloroethy1ene) of 133a.

GAS PHASE FLUORINATION OF 1230ZA

A process for the fluorination of 1230za is provided, wherein 1230za is contacted with HF in the gas phase in the presence of an aluminum fluoride or chromium-based fluorination catalyst under conditions sufficient to produce a reaction mixture containing 1233zd, 1234ze and 245fa. 245fa is a known foam blowing agent and refrigerant, while 1233zd and 1234ze are known intermediates useful for preparing 245fa.

CATALYST FOR THE FLUORINATION OF HALOGENATED HYDROCARBONS

A fluorination catalyst based on an amorphous Cr (III) compound and on a compound of a metal selected from Mg, Ca, Sr, Ba, Sc, Ti and Zr in an atomic ratio Cr/other metal comprised between 50:1 and 1:1, supported on AlF3 or fluorinated Al2O3. The catalyst results suitable in the fluorination in gaseous phase with HF of halogenated hydrocarbons.

PURIFICATION AND PRODUCTION METHODS FOR 1,1-DIFLUOROETHANE AND THE PRODUCT OBTAINED BY THESE METHODS

Du 1,1-difluoroéthane contenant moins de 10 mg/kg de chlorure de vinyle est obtenu par traitement avec du fluorure d'hydrogène d'un 1,1-difluoroéthane brut contenant moins de 1 mole de chlorure d'hydrogène par mole de 1,1-difluoroéthane.

GAS CATALYTIC FLUORATION OF HALOGENATED HYDROCARBONS

L'invention concerne la fluoration catalytique d'hydrocarbures halogénés en phase gazeuse au moyen d'acide fluorhydrique. On utilise un catalyseur mixte à base de dérivés du chrome et du vanadium, ces deux éléments étant majoritairement à l'état d'oxydation III. L'emploi d'un catalyseur selon l'invention permet d'obtenir des performances catalytiques supérieures à celle obtenues avec le chrome seul ou le vanadium seul.

PROCESS FOR PRODUCING 1,1,1,3,3-PENTAFLUOROPROPANE

A process for producing 1,1,1,3,3-pentafluoropropane which involves the first step of reacting in a gas phase 1,1,1,3,3-pentachloropropane with hydrogen fluoride to thereby give 1,1,1-trifluoro-3-chloro-2-propene; and the second step of reacting in a gas phase the above 1,1,1-trifluoro-3-chloro-2-propene with hydrogen fluoride to thereby give 1,1,1,3,3-petafluoropropane; wherein the 1,1,1-trifluoro-3-chloro-2-propene obtained in the first step is fed into the second step after eliminating hydrogen chloride formed as the by-product therefrom. Thus an economical and novel process for producing 1,1,1,3,3pentafluoropropane can be provided in a high yield or at a good selectivity.

HYDROGEN FLUORIDE RECOVERY PROCESS

A process for recovery of hydrogen fluoride comprises contacting a gaseous mixture containing hydrogen fluoride and an organic compound with a solution of an alkali metal fluoride in hydrogen fluoride, separating a gas phase depleted in hydrogen fluoride and containing the organic compound from a liquid phase enriched in hydrogen fluoride, and then recovering the hydrogen fluoride from the liquid phase.

PREPARATION OF 245FA

A gas phase process for the preparation of 245fa is provided, wherein 1233 zd is contacted with HF in the presence of a supported antimony catalyst. ...

Verfahren zur Fluorierung organischer Verbindungen

Verfahren zur Herstellung von fluorierten Kohlenwasserstoffen

СПОСОБ ПОЛУЧЕНИЯ 1,1,1,2-ТЕТРАФТОРЭТАНА

Process for the manufacture or 1,1,1,2-tetrafluoroethan

Process for manufacture of 1,1,1,2-tetrafluoroethane

METHOD FOR MANUFACTURING LIQUID TANKS

MASS CATALYSTS CONTAINING CHROMIUM AND OF NICKEL FOR FLUORIDATION IN GAS HALOGENOUS HYDROCARBON PHASE

SYNTHESIS OF the 1,1,1,3,3-PENTAFLUOROPROPANE

L'invention concerne la fabrication du 1, 1, 1, 3, 3-pentafluoropropane par réaction du fluorure d'hydrogène avec notamment le 1, 1, 1, 3, 3-pentachloropropane en phase liquide et en présence d'un catalyseur. L'emploi d'un catalyseur à base de titane permet d'éviter les problèmes de corrosion générés par les catalyseurs à base d'antimoine.

MANUFACTORING PROCESS OF THE HYDROFLUOROCARBURES

La présente invention concerne un procédé de fabrication des hydrofluorocarbures. Ce procédé comprend une étape de réaction d'au moins un hydro(fluoro)chlorocarbure ou chlorocarbure avec de l'acide fluorhydrique en phase gazeuse en présence d'un catalyseur et une étape de séparation du mélange de produits issus de la réaction de fluoration caractérisé en ce que le flux gazeux issu de la réaction est comprimé à l'aide d'un compresseur avant d'être soumis à l'étape de séparation. La présente invention a également pour objet un dispositif permettant la mise en oeuvre dudit procédé.

METHOD FOR THE PRODUCTION OF FLUORINATED COMPOUNDS

L'invention concerne un procédé de production d'un composé fluoré comprenant : - la fourniture d'un flux gazeux comprenant de l'acide fluorhydrique ; - la fourniture d'au moins un flux liquide de composé chloré et la vaporisation de celui-ci par mélange avec ledit flux gazeux, le mélange résultant étant un mélange gazeux ; - la réaction catalytique du composé chloré avec l'acide fluorhydrique en phase gazeuse et la collecte d'un flux de produit. L'invention concerne également une installation propre à la mise en œuvre de ce procédé.

PROCESS FOR the PREPARATION Of a HYDROCHLOROFLUOROALCANE AND CATALYST

Procédé pour la préparation d'un hydrochlorofluoroalcane selon lequel on fait réagir un précurseur halogéné de l'hydrochlorofluoroalcane avec du fluorure d'hydrogène en présence d'un catalyseur comprenant du chrome (Cr) et un autre métal.

COMPOSITIONS OF 1, 1, 1, 3, 3 A-SAMPLE ANALYSIS

PROCESSES OF PRODUCTION AND PURIFICATION OF 1,1-DIFLUOROETHANE AND PRODUCED AINSIOBTENU

COVERED ENGINES, THEIR MANUFACTORING PROCESS AND THEIR USES.

La présente invention se rapporte à des réacteurs revêtus résistant à la corrosion acide, leur procédé de fabrication et leurs utilisations dans des procédés en milieu superacide. Elle a plus particulièrement pour objet un réacteur comprenant une paroi interne métallique sur laquelle est ancré un revêtement en polymère fluoré, l'ancrage étant assuré par une tôle perforée située entre la paroi interne métallique et le revêtement en polymère fluoré, et la face de ladite tôle en contact avec la paroi métallique du réacteur présente une rugosité suffisante pour servir d'espace libre (pour les gaz) entre celle-ci et la paroi métallique du réacteur ; le réacteur est muni d'un dispositif pour permettre le maintien de la pression dans l'espace libre inférieure à celle du réacteur.

New catalyst of halogenation

MANUFACTURE OF 1,1-DIFLUOROETHNE

Hantaan halogenated catalyst for fluorinated hydrogen

PENTAFLUOROETHANE PRODUCING METHOD

The invention relates to a method for continuously fluorinating a gaseous perchloroethylene in a single step with a hydrofluoric acid (HF) in thwe presence of a catalyst in such a way that a pentafluoroethane is obtainable in the form of a major product. The inventive method is characterised in that it is carried out at a temperature ranging from 280 to 430 °C with an HF/PER molar ratio equal or greater than 20. © KIPO & WIPO 2008 ...

PROCESS FOR the MANUFACTURE OF 1,1,1-TRIFLUORODICLOROETANO AND/OR 1,1,1,2-TETRAFLUOROCLOROETANO FOR FLUORACAO OF a TETRAHALOETILENO

Fluorination catalyst and process

PROCESS FOR PRODUCING 1,1,1,3,3-PENTAFLUOROPROPANE, PROCESS FOR PRODUCING 2,2,3-TRICHLORO-1,1,1,3,3-PENTAFLUOROPROPANE, AND PROCESS FOR PRODUCING 2,2,3-TRICHLORO-1,1,1-TRIFLUOROPROPANE

... 1,1,1, 3,3-pentafluoropropane is produced by hydrogenating 2,2,3-trichloro-1,1,1,3,3-pentafluoropropane with at least 4.5 times by equivalent as much hydrogen in the presence of a noble metal catalyst, particularly a palladium catalyst in vapor phase. The 1,1,1,3,3-pentafluoropropane is also produced by chlorofluorinating propane, propene, hexachloropropene, etc., in the presence of a metallic catalyst into 2,2,3-trichloro-1,1,1,3,3-pentafluoropropane and reducing the product with hydrogen in the presence of a noble metal catalyst. It is possible to produce 2,2,3-trichloro-1,1,1,3, 3-pentafluoropropane and 1,1,1,3,3-pentafluoropropane efficiently and economically.

Process for the manufacture of fluorocarbons

Disclosed is an improved HFC manufacturing processes of the type which produces an intermediate product stream that includes a mixture of HF and at least one compound, usually an HCFC, which is relatively resistant to further fluorination. The improvement involves separating the unreactive compound(s) from the product stream, preferably using liquid:liquid phase separation, and substantially avoiding recycle of the unreactive compound to the fluorination reaction. The separated unreactive compound(s) are substantially free of HF.

PROCESSES FOR THE MANUFACTURE OF 1,1,1,3,3- PENTAFLUOROPROPENE, 2-CHLORO-PENTAFLUOROPROPENE AND COMPOSITIONS COMPRISING SATURATED DERIVATIVES THEREOF

A process is disclosed for producing the pentafluoropropenes of the formula CF 3 CX═CF 2 , where X is H or Cl. The process involves hydrodehalogenating CF 3 CCl 2 CF 3 with hydrogen at an elevated temperature in the vapor phase over a catalyst comprising an elemental metal, metal oxide, metal halide and/or metal oxyhalide (the metal being copper, nickel, chromium and the halogen of said halides and said oxyhalides being fluorine and/or chlorine). Processes for producing the hydrofluorocarbons CF 3 CH 2 CHF 2, CF 3 CHFCF 3 and CF 3 CH 2 CF 3 are also disclosed which involve (a) hydrodehalogenating CF 3 CCl 2 CF 3 with hydrogen as indicated above to produce a product comprising CF 3 CC1═CF 2, CF 2 CH═CF 2 , HCl and HF; and (b) either reacting the CF 3 CCl═CF 2 and/or CF 3 CH═CF 2 produced in (a) in the vapor phase with hydrogen to produce CF 3 CH 2 CHF 2 reacting the CF 3 CC 1═CF 2 produced in (a) with HF to produce CF 3 CHFCF 3, or reacting the CF 3 CH═CF 2 produced in (a) with HF to produce ...

Method for producing 1,1,1,3,3-pentafluoropropane

The present invention relates to a method for producing 1,1,1,3,3-pentafluoropropane. This method includes a first step of fluorinating 1-chloro-3,3,3-trifluoropropene in a liquid phase by hydrogen fluoride in the presence of an antimony compound as a catalyst, or a second step of fluorinating 1-chloro-3,3,3-trifluoropropene in a gas phase by hydrogen fluoride in the presence of a fluorination catalyst. If the first step is taken, 1,1,1,3,3-pentafluoropropane can be produced with a high yield. If the second step is taken, 1,1,1,3,3-pentafluoropropane can continuously be easily produced. Therefore, the second step is useful for an industrial scale production thereof. According to the invention, 1-chloro-3,3,3-trifluoropropene may be produced by a method including a step of reacting 1,1,1,3,3-pentachloropropane with hydrogen fluoride in a gas phase in the presence of a fluorination catalyst. This method is useful, because yield of 1-chloro-3,3,3-trifluoropropene is high.

Processes for the manufacture of 1,1,1,3,3-pentafluoropropene, 2-chloro-pentafluoropropene and compositions comprising saturated derivatives thereof

Disclosed are azeotropic compositions comprising CF3CHFCF3 and HF. Also disclosed are compositions and a process for producing compositions comprising (c1) CF3CHFCF3, CF3CH2CF3, or CHF2CH2CF3, and (c2) at least one saturated halogenated hydrocarbon and or ether having the formula: CnH2n+2-a-bClaFbOc wherein n is an integer from 1-4, a is an integer from 0-2n+1, b is an integer from 1-2n+2a, and c is 0 or 1, provided that when c is 1 then n is an integer from 2-4, and provided that component (c2) does not include the selected component (c1) compound, wherein the molar ratio of component (c2) to component (c1) is between about 1:99 and a molar ratio of HF to component (c1) in an azeotrope or azeotrope-like composition of component (c1) with HF. The process involves (A) combining (1) the azeotropic composition with (ii) the fluorination precursor to component (c2); and (B) reacting a sufficient amount of the HF from the azeotrope or azeotrope-like composition (1) with the precursor component ...

Mixed fluorination catalyst

Mixed fluorination catalyst comprising one or more nickel and chromium oxides, halides and/or oxyhalides deposited on a support composed of aluminium fluoride or of a mixture of aluminium fluoride and alumina, characterized in that the weight of nickel/weight of chromium ratio is between 0.08 and 0.25, preferably between 0.1 and 0.2.

Processes for the production of fluoropropanes and halopropenes

A process is disclosed for making CF3CH2CHF2, CF3CH=CHF, and/or CF3CH=CHCl. This process involves reacting at least one starting material selected from the group consisting of halopropenes of the formula CX3CH=CH2 and halopropenes of the formula CX2=CHCH2X, wherein each X is independently F or Cl, with HF and Cl2 in a reaction zone to produce a product mixture comprising HF, HCl, CF3CH2CHF2, CF3CH=CHF and CF3CH=CHCl; and recovering the CF3CH2CHF2, CF3CH=CHF, and/or CF3CH=CHCl from the product mixture. The molar ratio of HF to the total amount of starting materials fed to the reaction zone is at least stoichiometric, and the molar ratio of Cl2 to total amount of starting material fed to the reaction zone is 2:1 or less.

Method for the preparation of high surface area metal fluorides

The present invention is related to a method for preparing an amorphous metal fluoride of the formula MX+FX-delta comprising the steps of a) providing a precursor, whereby the precursor comprises a structure having a formula of Mx+F(x-delta)-yBy; and b) reacting the precursor with a fluorinating agent generating the amorphous metal flouride having a formula of Mx+Fx-delta, whereby M is selected from the group comprising metals of the second, third and fourth main group and any subgroup of the periodic table, B is a coordinately bound group; x is any integer of 2 or 3; y is any integer between 1 and 3; delta is 0 to 0.1; and x-delta>y.

PROCESS FOR PRODUCING AND PURIFYING 1,1-DIFLUOROETHANE, AND PRODUCT THUS OBTAINED

... 1,1-Difluoroethane containing less than 10 mg/kg of vinyl chloride is obtained by treatment, with hydrogen fluoride, of a crude 1,1-difluoroethane containing less than 1 mol of hydrogen chloride per mole of 1,1-difluoroethane.

CATALYST AND PROCESS USING THE CATALYST

A new chromium-containing fluorination catalyst is described. The catalyst comprises an amount of zinc that promotes activity. The zinc is contained in aggregates which have a size across their largest dimension of up to 1 micron. The aggregates are distributed throughout at least the surface region of the catalyst and greater than 40 weight % of the aggregates contain a concentration of zinc that is within ±1 weight % of the modal concentration of zinc in those aggregates.

PROCESS FOR THE PRODUCTION OF PENTAFLUOROETHANE

Chromium and nickel oxide-based solid catalysts useful for the fluorination of halogenated hydrocarbons

PRODUCTION OF HYDROFLUOROALKANES

A process for the co-production of two or more hydrofluoroalkanes which comprises contacting an alkene or a halogenated alkane with hydrogen fluoride at elevated temperature in the presence of a fluorination catalyst to produce a first hydrofluoroalkane and wherein an organic precursor to a second hydrofluoroalkane is provided in the process whereby to produce a second hydrofluoroalkane in addition to the first hydrofluoroalkane. In particularly preferred embodiments of the process, the first hydrofluoroalkane is 1,1,1,2-tetrafluoroethane derived from 1-chloro-2,2,2-trifluoroethane or trichloroethylene and the second hydrofluoroalkane is one or more of pentafluoroethane, difluoromethane and 1,1,2,2-tetrafluoroethane.

Production of polyfluorbutenes

СПОСОБ ПОЛУЧЕНИЯ 1,1,1-ТРИФТОРДИХЛОРЭТАНА И 1,1,1, 2-ТЕТРАФТОРХЛОРЭТАНА

FIELD: chemical technology, halogen-containing hydrocarbons. SUBSTANCE: reagent 1: tetrachloroethylene. Reagent 2: HF. Reaction conditions: gaseous phase, at 225-250 C, catalyst is Cr 2 O 3 containing 100 100 mln -1 or less potassium made by pyrolysis of (NH 4 ) 2 Cr 2 O 7 at 570-620 C following by passing of gaseous HF through its. Formation of pentafluoroethane is minimal. Synthesized 1,1,1-trifluorodichloroethane and 1,1,1,2-tetrafluorochloroethane are used as foaming agents, propellents, refrigerants. EFFECT: improved method of synthesis. 4 cl, 7 ex, 1 tbl 08$100с ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ” 2007 380 ' 13) СЛ ОМ С 07С 19/08, 17/08 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 4356764/04, 21.10.1988 (30) Приоритет: 4$/22.10.87/111292 (30) Приоритет: 22.10.1987 Ц$ 87 111292 (46) Дата публикации: 15.02.1994 (71) Заявитель: Е.И.Дюпон Де Немур энд Компани (Ц$) (72) Изобретатель: Вильям Генри Гампрехт[Ц$], Лео Эрнст Мэнзер[СА], Веллиюр Нотг Малликарджуна Рао[Ц$] (73) Патентообладатель: Е.И.Дюпон Де Немур энд Компани (0$) (54) СПОСОБ ПОЛУЧЕНИЯ 1,1,1-ТРИФТОРДИХЛОРЭТАНА И 1,1,1,2-ТЕТРАФТОРХЛОРЭТАНА (57) Реферат: Использование: 1,1,1-трифтордихлорэтан и 1,1,1,2-тетрафторхлорэтан находят применение в качестве вспенивателей, пропелленов, хладагентов. Реагент 1: тетрахлорэтилен, реагент 2: НЕ. Условия реакций: газовая фаза, 225 - 250С, катализатор СГ2О3, содержащий 100 млн `\ или меньше калия, полученный пиролизом (МН4)2Сг2О7 при 570 - 620С, с последующим пропусканием через него газообразного НЕ. Минимально образуется при этом пентафторэтан. 3 з. п. ф-лы, 1 табл. 2007380 С1 КО 08$100с ПЧ Го КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ (19) 13) ВИ "” 2007 380 "” Сл (51) п. С1.5 С 07 С 19/08, 17/08 12) АВЗТКАСТ ОЕ 1МУЕМТОМ (21), (22) АррИсаНоп: 4356764/04, 21.10.1988 (30) Рпошу: 43/22.10.87/111292 (30) Рпогйу: 22.10.1987 Ц$ 87 111292 (46) Рае ог рибИсаНоп: 15.02.1994 (71) АррИсапе: Е.1.ОЗУРОМ ОЕ МЕМУК ЕНМО КОМРАМ! ...

Verfahren zur Herstellung von perhalogenierten fünfgliedrigen zyklischen Verbindungen

Fluorierungsverfahren für halogenierte organische Verbindungen

Verfahren zur Herstellung von Chlor-Fluor-Butenen

VERFAHREN ZUR HERSTELLUNG VON FLUORIERTEN ALIPHATISCHEN KOHLENWASSERSTOFFEN MIT ZWEI UND MEHR C-ATOMEN ODER VON FLUORIERTEN CYCLOALIPHATISCHEN KOHLENWASSERSTOFFEN

Integrated process to coproduce trans-1-chloro-3,3,3-trifluoropropene, trans-1,3,3,3-tetrafluoropropene, and 1,1,1,3,3-pentafluoropropane

Disclosed is an integrated manufacturing process to co-produce (E) 1-chloro-3,3,3-trifluoropropene, (E) 1,3,3,3-tetrafluoropropene, and 1,1,1,3,3-pentafluoro-propane starting from a single starting feed material or a mixture of unsaturated hydrochloro-carbon feed materials comprising 1,1,1,3-tetrachloropropene and/or 1,1,3,3-tetrachloro-propene. The process includes a combined liquid or vapor phase reaction/purification operation which directly produces (E) 1-chloro-3,3,3-trifluoro-propene (1233zd (E)) from these feed materials, which may also include 240fa. In the second liquid phase fluorination reactor 1233zd (E) is contacted with HF in the presence of catalyst to produce 1,1,1,3,3-pentafluoropropane (245fa) with high conversion and selectivity. A third reactor is used for dehydrofluorination of 245fa to produce (E) 1,3,3,3-tetrafluoro-propene (1234ze (E)) by contacting in the liquid phase with a caustic solution or in the vapor phase using a dehydrofluorination catalyst. This operation may be followed by one or more purification processes to recover the 1234ze (E) product.

Process for the Manufacture of Trifluoroethylamine

The invention relates to a new process for the manufacture of fluoroaryl compounds and derivatives thereof, in particular of fluorobenzenes and derivatives thereof, and especially wherein said manufacture relates to an environmentally friendly production of the said compounds. Thus, the present invention overcomes the disadvantages of the prior art processes, and in a surprisingly simple and beneficial manner, and as compared to the prior art processes, in particular, the invention provides a more efficient and energy saving processes, and also provides a more environmentally friendly process, for the manufacture of nuclear fluorinated aromatics, and preferably of nuclear fluorinated fluorobenzenes. Accordingly, in one aspect of the invention, an industrially beneficial process for preparing fluorobenzenes from halobenzene precursors using HF to form hydrogen halide is provided by the present invention. A beneficial and surprisingly simple use of chlorobenzene as an industrially interesting starting material in the manufacture of fluorobenzene is provided.

CHROMIA BASED FLUORINATION CATALYST

A chromia-based fluorination catalyst comprising at least one additional metal selected from zinc, nickel, aluminium and magnesium in which from 0.1 to 8.0% by weight of the catalyst is in the form of one or more crystalline compounds of chromium and/or one or more crystalline compounds of the at least one additional metal. The catalyst can be used in processes for producing a fluorinated hydrocarbon. 1. A chromia-based fluorination catalyst consisting of:amorphous chromia;zinc oxide in a total amount of zinc of from 0.5 to 25% by weight of the catalyst; andcrystalline chromium oxide in a total amount of from 0.1 to 2.5% by weight of the catalyst;which catalyst is supported or unsupported.2. A catalyst according to having a surface area of at least 50 m2/g.3. A catalyst according to having a surface area of from 70 to 250 m2/g.4. A catalyst according to having a sulphate content of less than 10% w/w.5. A method for producing a catalyst as defined in claim 1 , which method comprises heat treating an amorphous catalyst precursor at a temperature of from 300 to 600° C. for a period of from 1 to 12 hours in an atmosphere of nitrogen or an atmosphere having an oxygen level of from 0.1 to 10% v/v in nitrogen.6. A method for prefluorinating a catalyst according to claim 1 , which method comprises heat treating the catalyst at a temperature of from 250 to 500° C. for a period of from 1 to 16 hours at atmospheric or superatmospheric pressure in the presence of hydrogen fluoride.7. A process for producing a fluorinated hydrocarbon claim 1 , which process comprises reacting a halogenated hydrocarbon with hydrogen fluoride in the presence of a catalyst as defined in .8. A process for producing a fluorinated hydrocarbon claim 6 , which process comprises reacting a halogenated hydrocarbon with hydrogen fluoride in the presence of a catalyst produced according to the method of .9. A process according to that is carried out at elevated temperature in the vapour phase.10. A process ...

METHOD FOR CO-PRODUCING VARIOUS ALKENYL HALIDES AND HYDROFLUOROALKANES

Disclosed is a method for co-producing various alkenyl halides and hydrofluoroalkanes: cis-1-chloro-3,3,3-trifluoropropene is introduced into a first reactor to carry out an isomerization reaction in the presence of a first catalyst, and the reaction product is rectified to obtain a product trans-1-chloro-3,3,3-trifluoropropene; and 30-70 wt % of trans-1-chloro-3,3,3-trifluoropropene and hydrogen fluoride are mixed and then introduced into a second reactor to carry out a reaction in the presence of a second catalyst to obtain a second reactor reaction product; the second reactor reaction product is introduced into a phase separator for separation, and the obtained organic phase is rectified to obtain the products trans-1,3,3,3-tetrafluoropropene, cis-1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane. The invention has the advantages of simple process, high efficiency, high operation flexibility, less investment and low energy consumption. 1. A method for co-producing alkenyl halides and hydrofluoroalkanes , comprising following steps of:{'sup': '−1', '(a) introducing cis-1-chloro-3,3,3-trifluoropropene into a first reactor where an isomerization reaction occurs in the presence of a first catalyst to obtain a first reactor reaction product, wherein a temperature of the isomerization reaction is 200-400° C., and an air velocity of the isomerization reaction is 300-1000 h;'}(b) introducing the first reactor reaction product obtained in the Step (a) into a first rectification column to obtain a product of trans-1-chloro-3,3,3-trifluoropropene and a first rectification column bottom liquid;{'sup': '−1', '(c) mixing 30-70 wt % of the trans-1-chloro-3,3,3-trifluoropropene obtained in the Step (b) with hydrogen fluoride, and then introducing the trans-1-chloro-3,3,3-trifluoropropene and the hydrogen fluoride in a second reactor where a reaction occurs in the presence of a catalyst to obtain a second reactor reaction product, wherein a molar ratio of the hydrogen ...

PROCESS FOR SYNTHESIS OF FLUORINATED OLEFINS

Disclosed is a process for the synthesis of fluorinated olefins, and in particularly preferred embodiments tetrafluorinated olefins having F on an unsaturated, non-terminal carbon, such as 2,3,3,3-tetrafluoropropene. The preferred processes of the present invention in accordance with one embodiment generally comprise: 2. The process of claim 1 , wherein compound of formula (IIIB) is CFCHFCHCl.3. The process of claim 1 , wherein compound of formula (IIIB) is CFCHFCHF.4. The process of wherein said reacting step (a) is a catalyzed liquid phase reaction.5. The process of wherein said reaction step (a) comprises reacting said HF with said compound of formula (IIA) at a temperature of from about 0° C. to about 250° C. and at a pressure of about 500 to about 1000 psig in the presence of a catalyst.6. The process of wherein said catalyst comprises SbCl.7. The process of wherein said exposing step (b) is a liquid phase reaction that involves contacting the compound of formula (III) with a potassium hydroxide solution and claim 1 , optionally claim 1 , a Crown ether.8. The process of wherein said exposing step is at least partially conducted at a temperature of from about 25° C. to about 90° C. and at a pressure of about 100 to about 200 psig.9. The process of wherein said exposing step (b) is a vapor phase reaction that involves contacting the compound of formula (III) with a metal-based catalyst.10. The process of wherein said metal-based catalyst is at least one of Pd or Ni on a carbon substrate.11. The process of wherein said exposing step is at least partially conducted at a temperature of from about 200° C. to about 500° C. This application is a division of U.S. application Ser. No. 15/987,463 filed May 23, 2018 (pending) which is a continuation of U.S. application Ser. No. 14/797,699, filed Jul. 13, 2015 (now abandoned), which application is a division of U.S. application Ser. No. 12/249,958, filed Oct. 12, 2008, (now U.S. Pat. No. 9,079,818, issued Jul. 14, 2015), ...

AZEOTROPIC OR AZEOTROPE-LIKE COMPOSITIONS OF 1,3,3-TRICHLORO-3-FLUORO-1-ENE (HCFO-1231zd) AND HYDROGEN FLUORIDE (HF)

Azeotropic or azeotrope-like mixtures of 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) and hydrogen fluoride (HF). Such compositions are useful as a feed stock or intermediate in the production of 1,1,1,3,3-pentafluoropropane (HFC-245fa),1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and 1,3,3,3-tetrafluoropropene (HFO-1234ze). 1. An azeotropic or azeotrope-like composition consisting essentially of 1 ,3 ,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) and hydrogen fluoride (HF).2. The composition of claim 1 , wherein the composition consists of 1 claim 1 ,3 claim 1 ,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) and hydrogen fluoride (HF).3. The composition of claim 1 , wherein the composition consists essentially of from about 1 to about 99 wt. % hydrogen fluoride (HF) and from about 1 to about 99 wt. % 1 claim 1 ,3 claim 1 ,3-trichloro-3-fluoroprop-1-ene (HCFO-1231 zd) claim 1 , based on the combined weight of the hydrogen fluoride (HF) and 1 claim 1 ,3 claim 1 ,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd).4. The composition of claim 1 , wherein the composition consists essentially of from about 2 to about 99 wt. % hydrogen fluoride (HF) and from about 1 to about 98 wt. % 1 claim 1 ,3 claim 1 ,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) claim 1 , based on the combined weight of the hydrogen fluoride (HF) and 1 claim 1 ,3 claim 1 ,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd).5. Composition of claim 1 , wherein the composition consists essentially of from about 2 to about 80 wt. % hydrogen fluoride (HF) and from about 20 to about 98 wt. % 1 claim 1 ,3 claim 1 ,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) claim 1 , based on the combined weight of the hydrogen fluoride (HF) and 1 claim 1 ,3 claim 1 ,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd).6. The composition of claim 1 , wherein the composition has a boiling point of about −10° C.±0.5° C. at a pressure of about 10 psia±2 psia.7. A method of forming an azeotropic or azeotrope-like composition comprising forming a ...

PRODUCTION METHOD FOR COMPOSITION CONTAINING 1,2-DICHLORO-3,3,3-TRIFLUOROPROPENE (HCFO-1223xd) AND/OR 1,1,2-TRICHLORO-3,3,3-TRIFLUOROPROPENE (CFO-1213xa)

The present invention provides a method that produces a composition containing 1223xd and/or 1213xa by a gas-phase reaction, and that achieves production efficiency higher than known methods. The present invention provides a method for producing a composition containing at least one fluorine-containing olefin selected from 1,2-dichloro-3,3,3-trifluoropropene (HCFO-1223xd) and 1,1,2-trichloro-3,3,3-trifluoropropene (CFO-1213xa), the method comprising subjecting at least one starting compound selected from a chlorine-containing alkane represented by Formula (1-1): CF 3 CHXCHX 2 , wherein each X is independently H or Cl, with the proviso that at least one X represents Cl, and a chlorine-containing alkene represented by Formula (1-2): CF 3 CX═CX 2 , wherein each X is independently H or Cl, with the proviso that at least one X represents Cl, to a gas-phase oxychlorination reaction in a temperature range of 380° C. or lower in the presence of oxidative gas and hydrogen chloride gas.

PROCESS OF FLUORINATION IN LIQUID PHASE

The present invention provides a process of fluorination in liquid phase in a solvent medium of a compound of formula (II) CXX=CZCXXX, in which Z represents H, Cl or F, and each Xrepresents independently hydrogen or chlorine, given that at least one of the Xrepresents a chlorine. 123-. (canceled)24. A process of fluorination of 1 ,1 ,2 ,3-tetrachloropropene comprising:(i) contacting 1,1,2,3,-tetrachloropropene with hydrogen fluoride in a liquid phase in a solvent under conditions sufficient to form a reaction mixture comprising 2-chloro-3,3,3-trifluoropropene;(ii) separating the reaction mixture into a first stream comprising HCl, and a second stream comprising HF, 2-chloro-3,3,3-trifluoropropene and 1,1,1,2-tetrafluoro-2-chloropropane.25. The process according in which the solvent is 1 claim 24 ,2-dichloroethane claim 24 , 1 claim 24 ,2 claim 24 ,3-trichloropropane claim 24 , 1-chloro-1-fluoroethane claim 24 , 1 claim 24 ,1-difluoroethane claim 24 , 1 claim 24 ,1-dichloroethane claim 24 , 1 claim 24 ,3-dichloro-1-fluorobutane claim 24 , 1 claim 24 ,1 claim 24 ,1 claim 24 ,3 claim 24 ,3-pentafluorobutane and 1 claim 24 ,1 claim 24 ,2-trichloro-2 claim 24 ,2-difluoroethane claim 24 , or a mixture thereof.26. The process according to claim 24 , in which the solvent is present in a quantity for a dilution ratio from at least 20%.27. The process according to claim 24 , in which a catalyst is used.28. The process according to claim 27 , in which the molar ratio catalyst/solvent is comprised between 10 mol % and 50 mol %.29. The process according to in which chlorine is added during the reaction.30. The process according to claim 24 , in which the product of the reaction is withdrawn in the gaseous state.31. The process according to claim 24 , wherein a gas is injected.32. The process according to claim 31 , in which the flow of gas claim 31 , compared to the flow of the 1 claim 31 ,1 claim 31 ,2 claim 31 ,3-tetrachloropropene is such that the molar ratio gas: 1 claim 31 ...

Process for Preparing C3-6(Hydro)Fluoroalkenes by Dehydrohalogenating C3-6 Halo(Hydro) Fluoroalkanes in the Presence of a Zinc Chromia Catalyst

A process for preparing 2,3,3,3-tetrafluoropropene (CFCF═CH). 3,3,3-trifluoro-2-chloropropene (CFCCl═CH) is fluorinated with HF in the vapour phase in the presence of a chromia-containing catalyst to produce an intermediate composition 1,1,1,2,2-pentafluoropropane (CFCFCH), which is dehydrofluorinated to produce CFCF═CH. 1. A process for preparing 2 ,3 ,3 ,3-tetrafluoropropene (CFCF═CH) comprising:{'sub': 3', '2', '3', '2', '3, '(i) fluorinating 3,3,3-trifluoro-2-chloropropene (CFCCl═CH) with HF in the vapour phase in the presence of a chromia-containing catalyst to produce an intermediate composition comprising 1,1,1,2,2-pentafluoropropane (CFCFCH); and'}{'sub': 3', '2', '3', '3', '2, '(ii) dehydrofluorinating the CFCFCHin the intermediate composition to produce CFCF═CH.'}2. A process according to claim 1 , wherein step (ii) is carried oat in the presence of a zinc/chromia catalyst.3. A process according to claim 2 , wherein the zinc/chromia catalyst comprises 0.01 to 25% by weight zinc.4. A process according to claim 3 , wherein the zinc/chromia catalyst is amorphous or from 0.1 to 50% by weight of the catalyst is in the form of one or more crystalline compounds of chromium and/or one or more crystalline compounds of zinc.5. A process according to claim 1 , wherein the intermediate composition further comprises 1 claim 1 ,1 claim 1 ,1 claim 1 ,2 claim 1 ,tetrafluoro-2-chloropropane (CFCFClCH).6. A process according to claim 5 , wherein the process comprises fluorinating CFCFClCHto produce CFCFCH.7. A process according to claim 6 , wherein CFCFClCHis fluorinated with HF in the presence of a chromia-containing catalyst to produce CFCFCH.8. A process according to claim 1 , wherein the ratio of HF:organics in the fluorinating step is from about 5:1 to about 30:1.9. A process according to claim 1 , wherein the process is carried out at a temperature of greater than 300° C.10. A process according to claim 1 , wherein the process is carried out at super-atmospheric press ...

METHOD FOR PREPARING HEXAFLUOROBUTADIENE

The present invention relates to a method for preparing hexafluorobutadiene comprising the following steps: (a) hydrodechlorinating hexachlorobutadiene to form a first stream comprising 1,2,3,4-tetrachlorobutadiene and optionally unreacted hexachlorobutadiene; (b) fluorinating the first stream comprising 1,2,3,4-tetrachlorobutadiene obtained in step (a) to form a second stream comprising 1,1,2,3,4,4-hexafluorobutane, (c) dehydrogenating the second stream comprising 1,1,2,3,4,4-hexafluorobutane to form a third stream comprising hexafluorobutadiene. 1. A process for the preparation of hexafluorobutadiene comprising the stages of:a) hydrodechlorination of hexachlorobutadiene in order to form a first stream comprising 1,2,3,4-tetrachlorobutadiene and optionally unreacted hexachlorobutadiene,b) fluorination of said first stream comprising 1,2,3,4-tetrachlorobutadiene obtained in stage a) in order to form a second stream comprising 1,1,2,3,4,4-hexafluorobutane,c) dehydrogenation of said second stream comprising 1,1,2,3,4,4-hexafluorobutane in order to form a third stream comprising hexafluorobutadiene.2. The process as claimed in claim 1 , wherein the fluorination stage b) is carried out in the presence of a fluorinating agent of formula Ax+Fx in which A is a cation and F denotes a fluoride ion F−.3. The process as claimed in claim 2 , wherein the fluorination stage b) is carried out in the presence of a fluorinating agent of formula Ax+Fx in which A is H claim 2 , Li claim 2 , Na claim 2 , K claim 2 , Rb claim 2 , Cs claim 2 , Mg claim 2 , Ca claim 2 , Sr or Ba and x is 1 or 2.4. The process as claimed in claim 1 , wherein the fluorination stage b) is carried out claim 1 , in the liquid phase claim 1 , in the presence of a polar aprotic solvent and of a fluorinating agent of formula Ax+Fx in which A is Li claim 1 , Na claim 1 , K claim 1 , Mg or Ca and x is 1 or 2.5. The process as claimed in claim 4 , wherein the polar aprotic organic solvent has a boiling point of ...

Manufacturing method of 1,2-dichlorohexafluorocyclopentene

Disclosed is a manufacturing method of 1,2-dichlorohexafluorocyclopentene. The first reaction uses dicyclopentadiene as a starting material and nitrogen gas or another inert gas as a diluting agent in a gas-phase thermal cracking reaction to obtain cyclopentadiene. The second reaction uses cyclopentadiene as a starting material in a liquid phase chlorination reaction with chlorine gas to obtain 1,2,3,4-tetrachlorocyclopentane. The third reaction uses 1,2,3,4-tetrachlorocyclopentane as a starting material in a gas-phase chlorination and fluorination reaction with hydrogen fluoride and chlorine gas in the presence of a chromium-based catalyst to obtain 1,2-dichlorohexafluorocyclopentene. The method uses easily acquired starting material and a stable fluorination catalyst, provides a high yield for a target product, and is applicable for large-scale continuous gas-phase production of 1,2-dichlorohexafluorocyclopentene.

COMPOSITIONS CONTAINING 1,1,1,3,3-PENTACHLOROPROPANE

The invention first relates to a composition comprising at least 99 wt. % of 1,1,1,3,3ºpentachloropropane and at least one compound selected from a list of additional compounds consisting of dichloropropanes, trichloropropanes, tetrachloropropanes, pentachloropropanes different from 1,1,1,3,3ºpentachloropropane, hexachloropropanes, heptachloropropanes, chloropropenes, dichloropropenes, trichloropropenes, tetrachloropropenes, pentachloropropenes and hexachloropropene, the weight content of said compound in the composition being lower than or equal to 500 ppm. 1. A composition comprising 99% by weight 1 ,1 ,1 ,3 ,3ºpentachloropropane (240fa) and one or more compound selected from the group consisting of Fº240da , Fº240db , r 240aa , and Fº240ab , said one or more compound being present in the composition in a weight content of less than 500 ppm.2. The composition of claim 1 , further comprising two or more compounds selected from the group consisting of Fº240da claim 1 , Fº240db claim 1 , Fº240aa claim 1 , and Fº240ab claim 1 , each of said two or more compounds being present in the composition in a weight content of less than 500 ppm.3. The composition of claim 2 , wherein the collective weight content of the two or more compounds is less than 500 ppm.4. The composition of claim 1 , wherein said one or more compound is present in the composition in a weight content of less than or equal to 250 ppm.5. The composition of claim 1 , further comprising one or more additional compounds selected from the group consisting of dichloropropanes claim 1 , trichloropropanes claim 1 , tetrachloropropanes claim 1 , hexachloropropanes claim 1 , heptachloropropanes claim 1 , chloropropenes claim 1 , dichloropropenes claim 1 , trichloropropenes claim 1 , tetrachloropropenes claim 1 , pentachloropropenes and hexachloropropene claim 1 , each of the one or more additional compounds being present in the composition in a weight content of less than or equal to 500 ppm.6. The composition of ...

Method for preparing 1,2-difluoroethylene and/or 1,1,2-trifluoroethane

This invention relates to a method for preparing 1,2-difluoroethylene and/or 1,1,2-trifluoroethane, comprising a step of performing at least one fluorination reaction by bringing at least one halide selected from the group consisting of haloethanes represented by general formula (1) CHX1X2CH2X3 (wherein X1, X2, and X3 are the same or different, and represent Cl, Br, or F) and haloethylenes represented by general formula (2) CHX4═CHX5 (wherein X4 and X5 are the same or different, and represent Cl, Br or F, with the proviso that the case in which X4 and X5 are both F is excluded).

Process for synthesis of fluorinated olefins

Disclosed is a process for the synthesis of fluorinated olefins, and in particularly preferred embodiments tetrafluorinated olefins having F on an unsaturated, non-terminal carbon, such as 2,3,3,3-tetrafluoropropene. The preferred processes of the present invention in accordance with one embodiment generally comprise: (a) reacting a compound of formula (I) X 1 X 2   (I) with a compound of formula (II) CX 1 X 2 X 3 CX 1 ═CX 1 X 2   (II) to produce a reaction product comprising a compound of formula (III) CF 3 CHX 1 CH 2 X 2   (III), and (b) exposing said compound of formula (III) to reaction conditions effective to convert said compound of formula (III) to a compound of formula (IV) CF 3 CZ═CH 2   (IV) wherein X 1 , X 2 , and X 3 are each independently selected from the group consisting of hydrogen, chlorine, bromine, fluorine and iodine, provided that X 1 and X 2 in formula (I) are not both hydrogen and Z is Cl, I, Br, or F.

PROCESS FOR PRODUCING FLUORINE-CONTAINING OLEFIN

The present invention provides a process for producing a fluoroolefin by reacting, in a gas phase, a fluorinating agent and a chlorine-containing alkene or a chlorine-containing alkane in the presence of at least one catalyst selected from the group consisting of chromium oxide, at least part of which is crystallized, and fluorinated chromium oxide obtained by fluorinating the chromium oxide. According to the present process, a target fluoroolefin can be obtained at a high conversion rate of the starting material and with high selectivity. 1. A process for producing a fluoroolefin comprising:reacting a fluorinating agent and a chlorine-containing compound in a gas phase in the presence of at least one catalyst selected from the group consisting of chromium oxide, at least part of which is crystallized, and fluorinated chromium oxide obtained by fluorinating the chromium oxide,{'sub': 3', '2', 'n', '2', '3', '2', 'n', '2', '2', '3', '2', 'n', '2', '3', '2', 'n', '2', '2, 'the chlorine-containing compound being at least one compound selected from the group consisting of a chlorine-containing alkane represented by formula (1): CX(CX)CClYCHZ, wherein each X is independently F or Cl, and Y is H or F, and when Y is H, Z is Cl or F, and when Y is F, Z is H, and n is an integer of 0 to 2; a chlorine-containing alkane represented by formula (2): CX(CX)CHCHX, wherein each X is independently F or Cl, at least one X is Cl, and n is an integer of 0 to 2; a chlorine-containing alkene represented by formula (3): CX(CX)CCl═CH, wherein each X is independently F or Cl, and n is an integer of 0 to 2; a chlorine-containing alkene represented by formula (4): CX(CX)CH═CHX, wherein each X is independently F or Cl, at least one X is Cl, and n is an integer of 0 to 2; and a chlorine-containing alkene represented by formula (5): CHXCCl═CX, wherein each X is independently F or Cl,'}{'sub': 3', '2', 'n, 'the fluoroolefin to be obtained being a compound represented by formula (6): CF(CF)CA=CHB, ...

METHOD FOR PRODUCING FLUORINATED COMPOUNDS

The invention relates to a method for producing a fluorinated compound, comprising: the provision of a gaseous flow comprising hydrofluoric acid; the provision of at least one liquid flow of a chlorinated compound and the vapourisation thereof by mixing with said gaseous flow, the resulting mixture being a gaseous mixture; and the catalytic reaction of the chlorinated compound with hydrofluoric acid in a gaseous phase and the collection of a product flow. The invention also relates to a facility for carrying out said method. 116.-. (canceled)17. An installation for producing a fluoro compound , comprising:a pipe for supplying a liquid stream of chloro compound;a pipe for supplying a gas stream comprising hydrofluoric acid;a mixing and vaporizing unit fed by the pipe for supplying the liquid stream of chloro compound and the pipe for supplying the gas stream comprising hydrofluoric acid;a pipe for collecting a gas mixture at the outlet of the mixing and vaporizing unit;a catalytic fluorination reactor fed by the pipe for collecting the gas mixture; anda pipe for collecting the product stream at the outlet of the catalytic fluorination reactor.18. The installation as claimed in claim 17 , in which:the chloro compound comprises a chlorocarbon, a chlorohydrocarbon, a chlorofluorocarbon, a hydrochlorofluorocarbon, a chloroolefin, a hydrochloroolefin or a hydrochlorofluoroolefin; and in which the fluoro compound comprises a fluorocarbon, a fluorohydrocarbon, a chlorofluorocarbon, a hydrochlorofluorocarbon, a fluoroolefin, a hydrofluoroolefin or a hydrochlorofluoroolefin.19. The installation as claimed in claim 17 , in which the mixing and vaporizing unit) is a static mixer.20. The installation as claimed in claim 17 , comprising:at least one separating unit fed by the product stream collection pipe; anda fluoro compound collection pipe and a recycling stream collection pipe at the outlet of the separating unit(s).21. The installation as claimed in claim 20 , in which the ...

PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE

The present invention relates, in part, to the discovery that high temperatures during the fluorination of 1,1,2,3-tetrachloropropene (HCO-1230xa) to 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) results in catalyst instability, reduced selectivity of the conversion, and/or the formation of one or more undesirable by-products. By controlling the reaction temperature, it is shown that the catalyst life may be extended and the selectivity of the reaction improved. Such control similarly results in an overall improvement in the production of certain hydrofluoroolefins, particularly 2,3,3,3-tetrafluoropropene (HFO-1234yf). 2. The process of claim 1 , wherein the temperature of the reaction does not exceed 275° C.3. (canceled)4. The process of claim 1 , wherein the temperature of the reaction ranges from about 180° C. to about 300° C.5. (canceled)6. The process of claim 1 , wherein the temperature is in small increments ranging from 0.5° C. to about 20° C. to maintain a targeted product collection rate claim 1 , but is not increased to exceed 300° C.7. (canceled)8. The process of claim 6 , wherein the small increments range from about 1° C. to about 10° C.910-. (canceled)11. The process of claim 6 , wherein the product collection rate ranges from about 0.1 lbs/hr to about 1.0 lbs/hr per lb of organic feed provided to the reaction.1213-. (canceled)14. The process of claim 1 , wherein at least one compound of formula I is a compound comprising at least one X is a chlorine.15. The process of claim 1 , wherein at least one compound of formula I is a compound where all Xs are chlorine.16. The process of claim 1 , wherein the at least one compound of formula I is 1 claim 1 ,1 claim 1 ,2 claim 1 ,3-tetrachloropropene.17. The process of claim 1 , wherein the contacting of said starting composition with a fluorinating agent occurs in a vapor phase.18. The process of claim 1 , wherein the contacting occurs in the presence of a catalyst.19. The process of claim 18 , wherein the ...

Gas-phase catalytic fluorination with chromium catalysts

A process for the fluorination of a chlorinated C3 alkane or alkene compound having at least one chlorine atom into a fluorinated C3 alkane or alkene compound having at least one fluorine atom includes the following steps: a) contacting, in a reactor, the chlorinated compound with hydrogen fluoride in gas phase in the presence of a fluorination catalyst to produce a fluorinated compound, and b) regenerating the fluorination catalyst used in step a). The step (b) of regenerating the fluorination catalyst comprises (c) the treatment of said fluorination catalyst with an oxidizing agent-containing gas flow to form an oxidized fluorination catalyst, and (d) the treatment of the oxidized fluorination catalyst obtained in step (c) with a gaseous mixture comprising a reducing agent and an inert gas. The catalyst regenerated in step b) is reused in step a) and the reducing agent is selected from C-Chydrohalocarbons. 1. Process for the fluorination of a chlorinated C3 alkane or alkene compound having at least one chlorine atom into a fluorinated C3 alkane or alkene compound having at least one fluorine atom comprising the following steps:a. contacting, in a reactor, the chlorinated compound with hydrogen fluoride in gas phase in the presence of a fluorination catalyst to produce a fluorinated compound, andb. regenerating the fluorination catalyst used in step a),{'sub': 1', '10, 'wherein the step (b) of regenerating the fluorination catalyst comprises (c) the treatment of said fluorination catalyst with an oxidizing agent-containing gas flow to form an oxidized fluorination catalyst, and (d) the treatment of the oxidized fluorination catalyst obtained in step (c) with a gaseous mixture comprising a reducing agent and an inert gas; the catalyst regenerated in step b) being reused in step a) and the reducing agent being selected from the group consisting of C-Chydrohalocarbons.'}2. Process for the fluorination of a chlorinated C3 alkane or alkene compound having at least one ...

Azeotropic compositions of 1,3,3,3-tetrachloroprop-1-ene and hydrogen fluoride

Provided are azeotropic or azeotrope-like mixtures of 1,3,3,3-tetrachloroprop-1-ene (HCO-1230zd) and hydrogen fluoride. Such compositions are useful as a feed stock in the production of HFC245fa and HCFO1233zd.

METHOD FOR MITIGATING HFC-245CB FORMATION DURING HCFO-1233XF HYDROFLUORINATION TO HCFC-244BB

The present process relates to a method for minimizing the formation of 1,1,1,2,2-pentafluoropropane in a liquid phase reaction of 2-chloro-3,3,3-trifluoropropene and HF in the presence of a hydrofluorination catalyst comprising: 1. A method for minimizing the formation of 1 ,1 ,1 ,2 ,2-pentafluoropropane in a liquid phase reaction of 2-chloro-3 ,3 ,3-trifluoropropene and HF in the presence of a hydrofluorination catalyst in a reactor comprising:(a) reacting HF with sufficient amount of 2-chloro-3,3,3-trifluoropropene in the presence of a hydrofluorination catalyst under conditions effective to form 2-chloro-1,1,1,2-tetrafluoropropane, the hydrofluorination catalyst being present in sufficient amounts to catalyze said reaction and 2-chloro-1,1,1,2-tetrafluoropropane being formed with both a conversion of about 80% or more and 1,1,1,2,2-pentafluoropropane selectivity of about 20% or less; and(b) maintaining the 2-chloro-1,1,1,2-tetrafluoropropane being formed with both a conversion of about 80% or more and a 1,1,1,2,2-pentafluoropropane selectivity of about 20% or less by adding said hydrofluorination catalyst continuously or periodically to the reactor in small increments.2. The method according to wherein the hydrofluorination catalyst is added periodically in an amount ranging from about 0.5 wt % to about 10 wt % based on the total weight of the hydrofluorination catalyst and HF present in the reactor.3. The method according to wherein the initial catalyst concentration in step (a) ranges from about 2 wt % to about 50 wt % claim 1 , based on the total weight of catalyst and HF in the reactor.4. The method according to wherein the initial catalyst concentration in step (a) ranges from about 10 wt % to about 40 wt % claim 1 , based on the total weight of catalyst and HF in the reactor.5. The method according to wherein the initial catalyst concentration in step (a) ranges from about 15 wt % to about 25 wt % claim 1 , based on the total weight of catalyst and HF in ...

AZEOTROPIC COMPOSITIONS OF 2-CHLORO-3,3,3-TRIFLUORO-1-PROPENE WITH HF AND OF 1,1,1,2,2-PENTAFLUOROPROPANE WITH HF

A process is disclosed for making CFCHCHF, CFCH═CHF and/or CFCH═CHCl. The process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CXCHClCHX, halopropenes of the formula CXCCl═CHand halopropenes of the formula CX═CClCHX, wherein each X is independently F or Cl, with HF in a reaction zone to produce a product mixture comprising HF, HCl, CFCHCHF, CFCH═CHF and CFCH═CHCl; and recovering the CFCHCHF, CFCH═CHF and/or CFCH═CHCl from the product mixture. Also disclosed is a process for making CFCFCHand/or CFCF═CH. The process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CXCHClCHX, halopropenes of the formula CXCCl═CHand halopropenes of the formula CX═CClCHX, wherein each X is independently F or Cl, with HF in a reaction zone to produce a product mixture comprising HF, HCl, CFCFCHand CFCF═CH; and recovering the CFCFCHand/or CFCF═CHfrom the product mixture. In each of the processes the molar ratio of HF to total amount of starting material fed to the reaction zone is at least stoichiometric. Also disclosed is an azeotropic composition comprising CFCCl═CH, and HF. Also disclosed is an azeotropic composition comprising CFCFCH, and HF. 1. A process for making at least one product compound selected from the group consisting of CFCFCHand CFCF═CH , comprising: reacting at least one starting material selected from the group consisting of halopropanes of the formula CXCHClCHX , halopropenes of the formula CXCCl═CHand halopropenes of the formula CX═CClCHX , wherein each X is independently selected from the group consisting of F and Cl , with HF in a reaction zone , optionally in the presence of a fluorination catalyst , to produce a product mixture comprising HF , HCl , CFCFCHand CFCF═CH , wherein the molar ratio of HF to total amount of starting material fed to the reaction zone is at least stoichiometric; andrecovering said at least one product ...

Process for the co-production of 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene

The present invention provides a method of producing 2,3,3,3-tetrafluoropropene (HFO-1234yf), wherein the method comprises two or more reaction steps, at least one of said reaction steps comprising the production of 1,3,3,3-tetrafluoropropene (HFO-1234ze) and/or one or more HFO-1234ze precursors from one or more HFO-1234yf precursors, wherein at least a portion of the HFO-1234ze is recovered.

Compositions containing 1,1,1,3,3-pentachloropropane

The invention first relates to a composition comprising at least 99 wt. % of 1,1,1,3,3-pentachloropropane and at least one compound selected from a list of additional compounds consisting of dichloropropanes, trichloropropanes, tetrachloropropanes, pentachloropropanes different from 1,1,1,3,3-pentachloropropane, hexachloropropanes, heptachloropropanes, chloropropenes, dichloropropenes, trichloropropenes, tetrachloropropenes, pentachloropropenes and hexachloropropene, the weight content of said compound in the composition being lower than or equal to 500 ppm.

CATALYST AND PROCESS USING THE CATALYST FOR MANUFACTURING FLUORINATED HYDROCARBONS

A catalyst comprising chromia and at least one additional metal or compound thereof and wherein the catalyst has a total pore volume of greater than 0.3 cm/g and the mean pore diameter is greater than or equal to 90 Å, wherein the total pore volume is measured by N2 adsorption porosimetry and the mean pore diameter is measured by NBET adsorption porosimetry, and wherein the at least one additional metal is selected from Li, Na, K, Ca, Mg, Cs, Sc, Al, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Rh, Ir, Ni, Pd, In, Pt, Cu, Ag, Au, Zn, La, Ce and mixtures thereof. 1. A catalyst comprising chromia and at least one additional metal or compound thereof and wherein the catalyst has a total pore volume of greater than 0.3 cm/g and the mean pore diameter is greater than or equal to 90 Å , wherein the total pore volume is measured by Nadsorption porosimetry and the mean pore diameter is measured by NBET adsorption porosimetry , and wherein the at least one additional metal is selected from the group consisting of: Li , Na , K , Ca , Mg , Cs , Sc , Al , Y , Ti , Zr , Hf , V , Nb , Ta , Cr , Mo , W , Mn , Re , Fe , Ru , Co , Rh , Ir , Ni , Pd , In , Pt , Cu , Ag , Au , Zn , La , Ce and mixtures thereof.2. A catalyst according to claim 1 , wherein the pore volume is equal to or greater than 0.4 cm/g.3. A catalyst according to claim 1 , wherein the average pore width of the catalyst is greater than or equal to 100 Å when measured by NBET adsorption porosimetry.4. A catalyst according to claim 1 , wherein the average pore width of the catalyst is greater than or equal to 130 Å when measured by NBJH adsorption porosimetry.5. A catalyst according to claim 1 , wherein the average pore width of the catalyst is greater than or equal to 90 Å when measured by NBJH desorption porosimetry.6. A catalyst according to provided in the form of a pellet or pellets comprising a plurality of catalyst particles.7. A catalyst according to claim 6 , wherein the pellets comprise graphite ...

CATALYTIC GAS PHASE FLUORINATION OF 1,1,2-TRICHLOROETHANE AND/OR 1,2-DICHLOROETHENE TO PRODUCE 1-CHLORO-2,2-DIFLUOROETHANE

The invention is directed to a catalyst for the gas phase fluorination of 1,1,2-trichloroethane and/or 1,2-dichloroethene with HF to give 1-chloro-2,2-difluoroethane which catalyst is prepared by co-depositing FeCland MgClon chromia-alumina, or co-depositing Cr(NO)and Ni(NO)on active carbon, or by doping alumina with ZnCl, and to a process for the preparation of 1-chloro-2,2-difluoroethane comprising a catalytic gas phase fluorination of 1,1,2-trichloroethane and/or 1,2-dichloroethene wherein one of the catalysts according to claim 2 or 3 is used. 1. A catalyst for gas phase fluorination of 1 ,1 ,2-trichloroethane and 1 ,2-dichloroethene with HF to give 1-chloro-2 ,2-difluoroethane which is prepared by co-depositing FeCland MgClon chromia-alumina , or co-depositing Cr(NO)and Ni(NO)on active carbon , or by doping alumina with ZnCl.2. The catalyst according to which has been fluorinated by treating the catalyst with a fluorine containing activation agent at a temperature not exceeding 400° C.3. The fluorinated catalyst according to which has been fluorinated by HF as activation agent.4. A process for preparation of 1-chloro-2 claim 2 ,2-difluoroethane comprising a catalytic gas phase fluorination of 1 claim 2 ,1 claim 2 ,2-trichloroethane comprising using a catalyst according to .5. The process according to claim 4 , wherein the ratio of catalyst weight to and flow rates of 1 claim 4 ,1 claim 4 ,2-trichloroethane and HF is in a range of 100 to 300.6. A process for preparation of 1-chloro-2 claim 2 ,2-difluoroethane comprising a catalytic gas phase fluorination of 1 claim 2 ,2-dichloroethene comprising using a catalyst according to .7. The process according to claim 6 , wherein the ratio of catalyst weight to flow rates of 1 claim 6 ,1 claim 6 ,2-trichloroethane and HF is in the range of 250 to 500.8. A process for preparation of 1-chloro-2 claim 2 ,2-difluoroethane comprising a catalytic gas phase fluorination of 1 claim 2 ,1 claim 2 ,2-trichloroethane and 1 claim 2 , ...

Method for producing fluorinated organic compounds

Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF 3 CF═CH 2 (1234yf). In certain preferred embodiments the processes comprise first exposing a compound of Formula (IA) C(X) 2 ═CClC(X) 3   (IA) where each X is independently F, Cl or H, preferably CCl 2 ═CClCH 2 Cl, to one or more sets of reaction conditions, but preferably a substantially single set of reaction conditions, effective to produce at least one chlorofluoropropane, preferably in accordance with Formula (IB): CF 3 CClX′C(X′) 3   Formula (IB) where each X′ is independently F, Cl or H, and then exposing the compound of Formula (IB) to one or more sets of reaction conditions, but preferably a substantially single set of reaction conditions, effective to produce a compound of Formula (II) CF 3 CF═CHZ   (II) where Z is H, F, Cl, I or Br.

PROCESS FOR SYNTHESIS OF FLUORINATED OLEFINS

Disclosed is a process for the synthesis of fluorinated olefins, and in particularly preferred embodiments tetrafluorinated olefins having F on an unsaturated, non-terminal carbon, such as 2,3,3,3-tetrafluoropropene. The preferred processes of the present invention in accordance with one embodiment generally comprise: 2. The process of claim 1 , wherein compound of formula (IIIB) is CFCHFCHCl.3. The process of claim 1 , wherein compound of formula (IIIB) is CFCHFCHF.4. The process of wherein said reacting step (a) is a catalyzed liquid phase reaction.5. The process of wherein said reaction step (a) comprises reacting said HF with said compound of formula (IIA) at a temperature of from about 0° C. to about 250° C. and at a pressure of about 500 to about 1000 psig in the presence of a catalyst.6. The process of wherein said catalyst comprises SbCl.7. The process of wherein said exposing step (b) is a liquid phase reaction that involves contacting the compound of formula (III) with a potassium hydroxide solution and claim 1 , optionally claim 1 , a Crown ether.8. The process of wherein said exposing step is at least partially conducted at a temperature of from about 25° C. to about 90° C. and at a pressure of about 100 to about 200 psig.9. The process of wherein said exposing step (b) is a vapor phase reaction that involves contacting the compound of formula (III) with a metal-based catalyst.10. The process of wherein said metal-based catalyst is at least one of Pd or Ni on a carbon substrate.11. The process of wherein said exposing step is at least partially conducted at a temperature of from about 200° C. to about 500° C. This application is a continuation of U.S. application Ser. No. 14/797,699, filed Jul. 13, 2015 (now pending), which application is a division of U.S. application Ser. No. 12/249,958, filed Oct. 12, 2008, (now U.S. Pat. No. 9,079,818, issued Jul. 14, 2015), which application claims the priority benefit of U.S. Provisional Application No. 60/068,509, ...

METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS

Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CFCF═CH(1234yf). Three steps may be used in preferred embodiments in which a feedstock such as CCl═CClCHCl (which may be purchased or synthesized from 1,2,3-trichloropropane) is fluorinated (preferably with HF in gas-phase in the presence of a catalyst) to synthesize a compound such as CFCCl═CH, preferably in a 80-96% selectivity. The CFCCl═CHis preferably converted to CFCFClCH(244-isomer) using a SbClas the catalyst which is then transformed selectively to 1234yf, preferably in a gas-phase catalytic reaction using activated carbon as the catalyst. For the first step, a mixture of CrOand FeCl/C is preferably used as the catalyst to achieve high selectivity to CFCCl═CH(96%). In the second step, SbCl/C is preferably used as the selective catalyst for transforming 1233xf to 244-isomer, CFCFClCH. The intermediates are preferably isolated and purified by distillation and used in the next step without further purification, preferably to a purity level of greater than about 95%. 1. A method for producing fluorinated organic compounds comprising converting at least one compound of Formula (I){'br': None, 'sub': m', 'n', 'm, 'C(X)CCl(Y)C(X)\u2003\u2003(I)'} {'br': None, 'sub': '3', 'CFCF═CHZ\u2003\u2003(II)'}, 'to at least one compound of Formula (II)'}where each X, Y and Z is independently H, F, Cl, I or Br, and each m is independently 1, 2 or 3, and n is 0 or 1.2. The method of wherein said converting step is a direct converting step.3. The method of wherein said converting step is an indirect converting step.4. The method of wherein said at least one compound of Formula (I) comprises a compound wherein n is 0 claim 1 , each X is independently H or Cl claim 1 , and Z is H.5. The method of wherein said at least one compound of Formula (I) comprises a compound Formula (IA):{'br': None, 'sub': 2', '3, 'C(X)═CClC(X)\u2003\u2003(IA)'}{'claim-ref': {'@idref': 'CLM-00001 ...

PROCESS FOR THE JOINT PREPARATION OF 1, 3, 3, 3-TETRAFLUOROPROPENE AND 2, 3, 3, 3-TETRAFLUOROPROPENE

A process for the joint preparation of 1,3,3,3-tetrafluoropropene and 2,3,3,3-tetrafluoropropene, comprising: (a) starting materials comprising at least one compound having the structure of formula I, II or III is reacted with hydrogen fluoride, producing 1,2,3-trichloro-3,3-difluoropropene, 1,2,3-trichloro-1,1,2-trifluoropropane, and 1,2,3-trichloro-1,1,3-trifluoropropane; in the compounds of said formulae CFCl=CCl-CHFCl(Formula I), CFClCHCl=CHCl (Formula II), and CFClCFClCHFCl(Formula III), m=0, 1, 2; n=1, 2; p=2, 3; x=1, 2, 3; y=1, 2; z=1, 2 and 4≦x+y+z≦6; (b) the 1,2,3-trichloro-3,3-difluoropropene, 1,2,3-trichloro-1,1,2-trifluoropropane and 1,2,3-trichloro-1,1,3-trifluoropropane undergo dechlorination, producing 3-chloro-3,3-difluoropropyne, 3-chloro-2,3,3-trifluoropropene and 3-chloro-1,3,3-trifluoropropene; and (c) the 3-chloro-3,3-difluoropropyne, 3-chloro-2,3,3-trifluoropropene and 3-chloro-1,3,3-trifluoropropene are reacted with hydrogen fluoride, simultaneously yielding 1,3,3,3-tetrafluoropropene and 2,3,3,3-tetrafluoropropen. 1. A process for the joint preparation of 1 ,3 ,3 ,3-tetrafluoropropene and 2 ,3 ,3 ,3-tetrafluoropropene , characterized in that , comprising the following steps: [{'br': None, 'sub': 2−m', 'm', '2−n', 'n, 'CFCl=CCl-CHFCl\u2003\u2003(Formula I)'}, {'br': None, 'sub': 3−p', 'p', '2, 'CFClCHCl=CHCl\u2003\u2003(Formula II)'}, {'br': None, 'sub': 3−x', 'x', '2−y', 'y', '2−z', 'z, 'CFClCFClCHFCl\u2003\u2003(Formula III),'}], '(a) starting materials comprising at least one compound having the structures of formula I, II or III, undergoe fluorination reaction with hydrogen fluoride in the presence of a fluorination catalyst, producing a product stream containing 1,2,3-trichloro-3,3-difluoropropene, 1,2,3-trichloro-1,1,2-trifluoropropane, 1,2,3-trichloro-1,1,3-trifluoropropane, hydrogen chloride and unreacted hydrogen fluoride;'}wherein in the general formulas of the compounds, m=0, 1, 2; n=1, 2; p=2, 3; x=1, 2, 3; y=1, 2; z=1, 2 and 4≦x+y ...

CATALYST AND PROCESS USING THE CATALYST

A new chromium-containing fluorination catalyst is described. The catalyst comprises an amount of zinc that promotes activity. The zinc is contained in aggregates which have a size across their largest dimension of up to 1 micron. The aggregates are distributed throughout at least the surface region of the catalyst and greater than 40 weight % of the aggregates contain a concentration of zinc that is within ±1 weight % of the modal concentration of zinc in those aggregates. 1. A chromium-containing fluorination catalyst which consists essentially of (i) elemental zinc and/or one or more compounds of zinc and (ii) one or more chromium compounds selected from the group consisting of chromium oxides , chromium fluorides , fluorinated chromium oxides and chromium oxyfluorides wherein from 1.0 to 10.0% of the total weight of the catalyst is zinc contained in aggregates which have a size across their largest dimension of up to 1 micron and which are distributed throughout at least the surface region of the catalyst and wherein greater than 60 weight % of the zinc-containing aggregates contain a concentration of zinc that is within ±1 weight % of the modal concentration of zinc in the zinc-containing aggregates.2. The catalyst of claim 1 , wherein greater than 80 weight % of the zinc-containing aggregates contain a concentration of zinc that is within ±2 weight % of the modal concentration of zinc in the zinc-containing aggregates.3. The catalyst of claim 1 , wherein greater than 90 weight % of the zinc-containing aggregates contain a concentration of zinc that is within ±2 weight % of the modal concentration of zinc in the zinc-containing aggregates.4. The catalyst of claim 1 , wherein the zinc-containing aggregates have a size in the range of from 20 nm to 1 micron.5. The catalyst of claim 1 , wherein the catalyst comprises one or more chromium (III) compounds selected from the group consisting of chromia claim 1 , chromium (III) fluoride claim 1 , fluorinated chromia ...

Process for the production of chlorinated propenes

Processes for the production of chlorinated propenes are provided. The processes make use of 1,2-dichloropropane as a starting material and subject a feedstream comprising the same to an ionic chlorination process. At least a portion of any tri- and tetrachlorinated propanes not amenable to ionic chlorination conditions are removed from the ionic chlorination product stream, or, are subjected to chemical base dehydrochlorination step. In this way, recycle of intermediates not amenable to ionic chlorination reactions is reduced or avoided, as is the buildup of these intermediates within the process. Selectivity and, in some embodiments, yield of the process is thus enhanced.

Polyhalogenated monoheteroborane anion compositions

The present invention provides compounds comprising a polyhalogenated heteroborane anion of the formula RaZBbHcFdXe(OR')f-1, and a method for producing the same. Specifically, the present invention provides compounds comprising a polyfluorinated monocarborane anion.

Polyhalogenated monoheteroborane anion compositions

The present invention provides compounds comprising a polyhalogenated heteroborane anion of the formula R a ZB b H c F d X e (OR") f -1 , and a method for producing the same. Specifically, the present invention provides compounds comprising a polyfluorinated monocarborane anion.

Methods for producing polyhalogenated monoheteroboranes

The present invention provides compounds comprising a polyhalogenated heteroborane anion of the formula R a ZB b H c F d X e (OR″) f −1 , and a method for producing the same. Specifically, the present invention provides compounds comprising a polyfluorinated monocarborane anion.

Production and use of octafluoropropane

Octafluoropropane is produced by a process comprising a step (1) of reacting hexafluoropropene with hydrogen fluoride in a gas phase at a temperature of from 150 to 450° C. in the presence of a fluorination catalyst to obtain 2H-heptafluoropropane and a step (2) of reacting 2H-heptafluoropropane obtained in step (1) with fluorine gas in a gas phase at a temperature of from 250 to 500° C. in the absence of a catalyst to obtain octafluoropropane. High-purity octafluoropropane is obtained which can be used in a process for producing a semiconductor device.

Production and use of hexafluoroethane

A process for production of high-purity hexafluoroethane, wherein a mixed gas containing hexafluoroethane and chlorotrifluoromethane is reacted with hydrogen fluoride in a gas phase in the presence of a fluorination catalyst at 200-450° C., for fluorination of the chlorotrifluoromethane, or wherein pentafluoroethane containing chlorine compounds with 1-3 carbon atoms is reacted with hydrogen in a gas phase in the presence of a hydrogenation catalyst at 150-400° C., and the product is then reacted with fluorine in a gas phase in the presence of a diluent gas.

Process for synthesis of fluorinated olefins

Disclosed is a process for the synthesis of fluorinated olefins, and in particularly preferred embodiments tetrafluorinated olefins having F on an unsaturated, non-terminal carbon, such as 2,3,3,3-tetrafluoropropene. The preferred processes of the present invention in accordance with one embodiment generally comprise: (a) reacting a compound of formula (I) X 1 X 2   (I) with a compound of formula (II) CX 1 X 2 X 3 CX 1 ═CX 1 X 2   (II) to produce a reaction product comprising a compound of formula (III) CF 3 CHX 1 CH 2 X 2   (III), and (b) exposing said compound of formula (III) to reaction conditions effective to convert said compound of formula (III) to a compound of formula (IV) CF 3 CZ=CH 2   (IV) wherein X 1 , X 2 , and X 3 are each independently selected from the group consisting of hydrogen, chlorine, bromine, fluorine and iodine, provided that X 1 and X 2 in formula (I) are not both hydrogen and Z is Cl, I, Br, or F.

Process for preparing fluorination catalyst

A process for preparing a fluorination catalyst using a low pressure activating step followed by a high pressure activating step.

Processo para produçao de pentafluoretano e tetrafluorcloroetano

Processo para produzir um composto

Processo de hidrofluoretacao catalisada

Processo de hidrofluoracao catalisada

Método de produção de 1,1,1,3,3-pentafluorpropano

Catalyst and process using the catalyst

ポリハロゲン化モノヘテロボランアニオン組成物

(57)【要約】 本発明は、式Ｒ a ＺＢ b Ｈ c Ｆ d Ｘ e （ＯＲ"） f -1 で表されるポリハロゲン化ヘテロボランアニオンを含む化合物及びその製造法を提供する。本発明は特にポリフルオロモノカルボランアニオンを含む化合物を提供する。

Metodo para la produccion de 2,3,3,3-tetrafluoropropeno.

Se presenta un método para la preparación de 2,3,3,3-tetrafluoropr openo que comprende la puesta en contacto de un reactivo que comprende CCl2=CFCH2Cl con un agente de fluorinación, como por ejemplo HF, en condiciones efectivas para producir un producto de la reacción que contiene CF3CF=CH2.

Fluorination catalysts, method for their preparation, and method for producing fluorinated compounds using the catalysts

The present invention provides a novel fluorination catalyst that has high stability at high temperatures, is easily regenerated and is superior in catalytic activity and selectivity and a method for the preparation of the fluorination catalyst. The present invention also provides a method for the preparation of a novel fluorinated compound, and particularly, 1,1,1,3,3-pentafluoropropane (HFC-245fa), by using the catalyst. The fluorination catalyst of the present invention is obtained by treating a metal salt containing a chromium salt such as chromium oxide with chlorine gas and/or oxygen gas. Examples of the metal salt may include, besides a chromium salt, one or more catalytically active metal salts selected from magnesium salts, aluminum salts, zinc salts, sodium salts, nickel salts, iron salts, cobalt salts, vanadium salts, manganese salts and copper salts.

Liquid phase fluorination catalysts

The catalysts according to the invention are mixtures of an antimony trihalide and of a titanium tetrahalide. These catalysts can be used for liquid phase fluorination of halogenated aliphatic hydrocarbons, especially that of the chlorinated derivatives of ethane and ethylene.

Method of preparing 1,1,1,2-tetrafluoroethane, pentafluoroethane and 1,1,1-trifluoroethane

불화칼슘과, 삼산화크롬, 염화아연 및 염화제2철의 수용액을 혼합한후 에탄올과 반응시켜 얻어지는 생성물을 소성함으로써 제조된 촉매의 존재하에, 1단계 반응으로서, 1,1,1-트리플루오로-2-클로로에탄(HCFC-133a)과 불화수소를 반응시켜 1,1,1,2-테트라플루오로에탄(HFC-134a), 펜타플루오로에탄(HFC-125) 및 1,1,1,-트리플루오로에탄(HFC-143a)을 얻고, 2단계 반응으로서 1단계 반응생성물에 트리클로로에틸렌을 첨가하여 HCFC-133a를 제조한 다음 HFC-134a, HFC-125 및 HFC-143a를 분리하고 HCFC-133a를 1단계 반응으로 재순환시키는 것으로 이루어지는 2단계 기상반응에 의해, HFC-134a, HFC-125 및 HFC-143a를 동시에 제조하는 방법이 제공된다. 1,1,1-trifluoro as a one-step reaction in the presence of a catalyst prepared by mixing calcium fluoride with an aqueous solution of chromium trioxide, zinc chloride and ferric chloride, and then calcining the product obtained by reacting with ethanol. 2-chloroethane (HCFC-133a) and hydrogen fluoride were reacted to give 1,1,1,2-tetrafluoroethane (HFC-134a), pentafluoroethane (HFC-125) and 1,1,1, -Trifluoroethane (HFC-143a) was obtained, HCFC-133a was prepared by adding trichloroethylene to the first stage reaction product as a two-step reaction, and then HFC-134a, HFC-125 and HFC-143a were separated and HCFC By a two-stage gas phase reaction consisting of recycling -133a to a one-stage reaction, a method for simultaneously producing HFC-134a, HFC-125 and HFC-143a is provided.

制备二氯三氟乙烷的方法

描述了一种制备二氯三氟乙烷的方法。所述方法包括在至少一个反应器中在氟化催化剂存在下在高温下在气相中使全氯乙烯与氟化氢(HF)反应。操作所述方法，以便控制经过所述反应器或每一个反应器从入口端至出口端的温升。可纯化二氯三氟乙烷，然后原样使用或用于制备五氟乙烷。

Cobalt-substituted chromium oxide compositions, preparation thereof, and application thereof as catalysts and catalyst precursors

FIELD: isomerization and disproportionation catalysts. SUBSTANCE: invention relates to crystalline α-chromium oxide, chromium-containing catalytic compositions, methods for preparation thereof, and to a process of fluorine distribution in hydrocarbon and/or halogenated hydrocarbon in presence of indicated catalytic compositions. Claimed crystalline α-chromium oxide, wherein about 0.05 to about 6 atomic % chromium in the lattice of α-chromium oxide is substituted by trivalent cobalt (Co+3) atoms is via coprecipitation of solid substance by introducing ammonium hydroxide, this method being supplemented by introducing an excess of ammonium nitrate into precipitated mixture before dehydration step and calcination step at 375 to 1000°C in presence of oxygen. Chromium-containing catalytic compositions containing crystalline cobalt-substituted α-chromium oxide as chromium-containing component optionally treated with fluorination agent are also claimed. Composition preparation procedure comprises: (a) coprecipitation of solid substance by introducing ammonium hydroxide into aqueous solution of soluble cobalt salt and soluble trivalent chromium salt, wherein solution contains at least three moles nitrate per mole chromium and has concentration of cobalt from about 0.05 to about 6 mol % based on total content of cobalt and chromium in solution, followed by introducing into solution at least three moles ammonium per mole chromium; (b) collecting coprecipitated solid substance obtained in step (a); (c) drying collected solid substance; and (d) calcination of dried solid substance at 375 to 1000°C in presence of oxygen. EFFECT: increased activity of catalytic composition in above-indicated processes. 15 cl, 8 dwg, 13 ex ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2 318 594 (13) C2 (51) ÌÏÊ B01J 23/26 (2006.01) B01J 23/882 (2006.01) B01J 27/132 (2006.01) C01G 37/033 (2006.01) B01J 37/03 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ B01J 37/26 (2006.01) ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ,C07C 17/20 (2006.01) ...

촉매 처리된 불화수소화 방법

내용 없음

Processes for purification and production of fluorocarbons

본 발명은 펜타플루오로에탄(HFC-125)의 정제에서 추출제로서 올레핀계 화합물, 특히 헥사플루오로프로펜(HFP)이나 클로로트리플루오로에텐(CFC-1113)을 이용하는 방법을 포함한다. 이들 방법은 회수된 HFP를 헵타플루오로프로판(HFC-227)이나 다른 유도체들의 생산을 위한 선구물질로서 이용할 수 있다. The present invention includes the use of olefinic compounds, in particular hexafluoropropene (HFP) or chlorotrifluoroethene (CFC-1113), as extractant in the purification of pentafluoroethane (HFC-125). These methods can utilize the recovered HFP as a precursor for the production of heptafluoropropane (HFC-227) or other derivatives. 히드로플루오로카본, 정제, 증류, 추출, 올레핀 Hydrofluorocarbons, purification, distillation, extraction, olefins

四氟氯乙烷的制造方法

本发明提供HCFC-124的制造方法，其特征是，在从全氯乙烯(PCE)制造HCFC-124时，在催化剂存在下，在液相第1反应工序中，使PCE氟化，生成HCFC-123和/或HCFC-122，接着，在催化剂存在下，在气相第2反应工序中，使上述HCFC-123和/或HCFC-122氟化，生成HCFC-124。通过该方法，可改善目的产物的收率、催化剂寿命及反应温度的可控性。

生产氟代乙烷的方法以及所得氟代乙烷的用途

本发明涉及一种生产高纯度五氟乙烷的方法，包括(1)将四氯乙烯氟化的步骤，获得含有杂质的粗五氟乙烷，和(2)使含有杂质的粗五氟乙烷与氧气和/或含氧化合物在催化剂存在下接触的步骤。

用于减少hcfo-1233xf氢氟化为hcfc-244bb过程中hfc-245cb形成的方法

本方法涉及尽量减少2-氯-3,3,3-三氟丙烯和HF在氢氟化催化剂的存在下的液相反应中形成1,1,1,2,2-五氟丙烷的方法，包括：（a）使HF与足够量的2-氯-3,3,3-三氟丙烯在氢氟化催化剂的存在下在有效形成2-氯-1,1,1,2-四氟丙烷的条件下反应，该氢氟化催化剂以足以催化所述反应的量存在，并且该2-氯-1,1,1,2-四氟丙烷以大于80%的转化率和低于20%的1,1,1,2,2-五氟丙烷选择性形成；和（b）通过以小的增量向所述反应器中加入所述氢氟化催化剂来保持以大约80%或更高的转化率和大约20%或更低的1,1,1,2,2-五氟丙烷选择性形成2-氯-1,1,1,2-四氟丙烷。

一种六氯丁二烯的转化方法

本发明公开了一种污染物六氯丁二烯的催化转化方法，以六氯丁二烯和无水氟化氢为原料，在液相氟化催化剂和催化助剂存在下，合成得到2‑氯‑1,1,1,4,4,4‑六氟‑2‑丁烯。本发明提供了一种污染物的绿色转化方法，主要用于六氯丁二烯的催化转化。

氟化催化剂及其制备方法、以及使用了该催化剂的氟化合物的制备方法

本发明的氟化催化剂是，通过对含有氧化铬等铬盐的金属盐用氯气/或氧气进行处理而得到的。作为金属盐，除了铬盐以外，可以举出具有催化活性的从镁、铝、锌、钠、镍、铁、钴、钒、锰、铜中选择一种以上元素的金属盐。通过本发明可以提供高温下的稳定性高、再生容易且具有出色的催化活性或选择性的新的氟化催化剂和其制备方法，另外还可以提供使用了这些催化剂的新的氟化合物制备方法，尤其1，1，1，3，3—五氟丙烷(HFC-245fa)的制备方法。

气相氟化制备e-1,1,1,4,4,4-六氟-2-丁烯的方法

本发明公开了一种气相氟化制备E‑1,1,1,4,4,4‑六氟‑2‑丁烯的方法，即：在氟化催化剂存在下，四氟丁三烯或者四氯丁三烯，与氟化氢发生氟化反应，得到E‑1,1,1,4,4,4‑六氟‑2‑丁烯。本发明主要用于高效率、连续循环地生产E‑1,1,1,4,4,4‑六氟‑2‑丁烯。

Fluorination catalyst and process to produce fluorinated hydrocarbons

신규한 크롬-함유 불소화된 촉매가 개시된다. 상기 촉매는 활성을 촉진하는 함량의 아연을 포함한다. 상기 아연은 최대 치수를 가로질러 1 마이크론 이하의 크기를 갖는 응집체로서 함유된다. 상기 응집체는 상기 촉매의 적어도 표면 영역에 걸쳐 분산되어 있고 상기 응집체의 40중량% 초과는 그러한 응집체에서의 아연의 최빈 농도(modal concentration)의 ±1중량% 이내인 아연의 농도를 함유한다. Novel chromium-containing fluorinated catalysts are disclosed. The catalyst contains zinc in an amount that promotes activity. The zinc is contained as aggregates having a size of 1 micron or less across the largest dimension. The aggregates are dispersed over at least the surface area of the catalyst and more than 40 wt% of the aggregates contain a concentration of zinc within ± 1 wt% of the modal concentration of zinc in such aggregates.

Fluorination catalyst and process

氟化催化剂的制备方法

一种使用低压活化步骤接着高压活化步骤制备氟化催化剂的方法。

플루오르화 방법

내용 없음.

Process for production of 1,1,1,2-tetrafluoroethane and/or pentafluoroethane and applications of the same

1,1,1,2-테트라플루오로에탄 및/또는 펜타플루오로에탄을 포함하는 주생성물, 상기 주생성물과의 공비 혼합물로서 불화 수소 및 적어도 불포화 화합물을 포함하는 불순물 성분으로 이루어지는, 불화 수소와 트리클로로에틸렌 및/또는 테트라클로로에틸렌을 반응시켜 얻어진 조생성물을 정제하는 공정으로 고순도 1,1,1,2-테트라플루오로에탄 및/또는 펜타플루오로에탄을 제조하는 공정에 있어서, 상기 정제 공정은 상기 조생성물에 새로이 불화 수소를 첨가함으로써 얻어진 혼합물을 기상으로 불소화 촉매와 접촉시켜 상기 조생성물에 함유된 불포화 화합물의 함량을 감소시키는 공정 및 증류 공정을 포함한다. Hydrogen fluoride, comprising a main product comprising 1,1,1,2-tetrafluoroethane and / or pentafluoroethane, and an impurity component comprising hydrogen fluoride and at least an unsaturated compound as an azeotrope with the main product; A process for purifying crude product obtained by reacting trichloroethylene and / or tetrachloroethylene to produce high purity 1,1,1,2-tetrafluoroethane and / or pentafluoroethane, wherein the purification process Includes a step and a distillation step of reducing the content of unsaturated compounds contained in the crude product by contacting the mixture obtained by newly adding hydrogen fluoride to the crude product in a gas phase.

Catalysts and methods of using the catalysts to prepare fluorinated hydrocarbons

크로미아 및 적어도 하나의 추가의 금속 또는 이의 화합물을 포함하는 촉매로서, 상기 촉매는 0.3 cm 3 /g을 초과하는 총 기공 부피를 가지며 평균 기공 직경은 90Å 이상이며, 상기 총 기공 부피는 N2 흡착 기공측정법에 의해 측정되며, 상기 평균 기공 직경은 N 2 BET 흡착 기공측정법에 의해 측정되며, 상기 적어도 하나의 추가의 금속은 Li, Na, K, Ca, Mg, Cs, Sc, Al, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Rh, Ir, Ni, Pd, In, Pt, Cu, Ag, Au, Zn, La, Ce 및 이들의 혼합물로부터 선택된다. A catalyst comprising chromia and at least one additional metal or compound thereof, wherein the catalyst has a total pore volume greater than 0.3 cm 3 /g and an average pore diameter of at least 90 Å, wherein the total pore volume comprises N2 adsorption pores and wherein the mean pore diameter is determined by N 2 BET adsorption porosimetry, wherein the at least one additional metal is Li, Na, K, Ca, Mg, Cs, Sc, Al, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Rh, Ir, Ni, Pd, In, Pt, Cu, Ag, Au, Zn, La, Ce and selected from mixtures thereof.

Polyhalogenated monoheteroborane anion compositions

Polyhalogenated monoheteroborane anion compositions

Polyhalogenated monoheteroborane anion compositions

The present invention provides compounds comprising a polyhalogenated heteroborane anion of the formula RaZBbHcFdXe(OR')f-1, and a method for producing the same. Specifically, the present invention provides compounds comprising a polyfluorinated monocarborane anion.

Fluoroborate salts comprising a reactive cation and uses thereof

The present invention provides weakly coordinating anion salts comprising a reactive cation and uses thereof. In particular, the present invention provides compounds of the formula MxQy and uses thereof, where M, Q, x, and y are those defined herein.

Polyhalogenated monoheteroborane anion compositions

The present invention provides compounds comprising a polyhalogenated heteroborane anion of the formula RaZBbHcFdXe(OR')f-1, and a method for producing the same. Specifically, the present invention provides compounds comprising a polyfluorinated monocarborane anion.

Catalyst

Monochlorotrifluoropropene compounds and compositions and methods using same

fluorination catalyst and fluorination process

一种无铬氟化催化剂，它包括载在氧化铝、卤代 氧化铝或卤氧化铝载体上的活性促进量的锌。以及 在该催化剂的存在下，通过将烃或卤代烃与氟化氢于 气相反应而生产氟化烃的催化剂的应用。

Method for producing 1,1-difluoroethane

公开了一种由氯乙烯和无水氟化氢选择性和高收率地制备1，1-二氟乙烷(CHF 2 -CH 3 ，HFC-152a)的方法。该方法包括氯乙烯与无水氟化氢在30-160℃下和在锡催化剂和至少一种选自碱金属卤化物和饱和卤代烃的化合物存在下进行液相反应。

Process for the manufacture of halogenated propanes containing end-carbon fluorine

公开制备下式化合物的方法:CF 3 CHXCF 3－Z Y Z ,其中X和Y独立地选自H和Cl,z为0或1。所述方法包括(1)在低于200℃温度下,使CCl 3 CHXCC 3－Z Y Z 、CCl 2－Z Y Z =CXCC 3 和/或CCl 2 CX=CC 3－Z Y Z 原料与氟化氢接触产生所述原料的氟化产物,该产物包括至少90%(摩尔)的总的C 3 HXY Z Cl 6－Z－X F X 饱和的化合物和C 3 XY Z Cl 5－Z－Y F Y 烯属化合物,其中x为1至6－z的整数,y为1至5－z的整数(氟化产物包括不超过约40%(摩尔)的所需产物,CF 3 CHXCF 3－Z Y Z );(2)在氟化催化剂存在下,在温度200℃至约400℃温度范围内,使在(1)中产生的饱和化合物和烯属化合物于汽相中与氟化氢接触;(3)在汽相氟化催化剂的存在下,在温度200℃至约400℃温度范围内,使足够量的所述化合物,其中x为1至5－z的整数和在(1)中产生的烯属化合物于汽相中与氟化氢反应提供基于在(1)和(2)中与HF反应的原料量的至少约90%对CF 3 CHXCF 3－Z Y Z 的总的选择性。

Fluoroborate salts comprising a reactive cation and uses thereof

The present invention provides weakly coordinating anion salts comprising a reactive cation and uses thereof. In particular, the present invention provides compounds of the formula M x Q y and uses thereof. Preferably, each M is independently a cation with at least one M being a reactive cation as defined herein. Q is a fluorinated polyhedral borate moiety. And x and y are absolute values of the oxidation states of Q and M, respectively.

Fluoroborane salts comprising a reactive cation and uses thereof

The present invention provides catalyst components comprising a compound having a weakly coordinating anion salt and a reactive cation, in particular a compound of the formula M x Q y . Preferably, each M is independently a cation with at least one M being a reactive cation as defined herein. Q is a fluorinated polyhedral borate moiety. And x and y are absolute values of the oxidation states of Q and M, respectively. The present invention also provides processes for using the catalyst components defined herein.

Method for producing 1,1,1,3,3-pentafluoropropane and method for producing 1,1,1,3,3-pentafluoro-2,3-dichloropropane

Preparation of 1,1,1,2-tetrafluoroethane

내용 없음

Combined method of 1,1,1,2-tetrafluoroethane, pentafluoroethane and 1,1,1-trifluoroethane

불화칼슘과, 삼산화크롬, 염화아연 및 염화제2철의 수용액을 혼합한 후 에탄올과 반응시켜 얻어지는 생성물을 소성함으로써 제조된 촉매의 존재하에, 1단계 반응으로서, 1,1,1-트리플루오로-2-클로로에탄(HCFC-133a)과 불화수소를 반응시켜 1,1,1,2-테트라플루오로에탄(HFC-134a), 펜타플루오로에탄(HFC-125) 및 1,1,1-트리플루오로에탄(HFC-143a)을 얻고, 2단계 반응으로서 1단계 반응생성물에 트리클로로에틸렌을 첨가하여 HCFC-133a를 제조한 다음 HFC-134a, HFC-125 및 HFC-143a를 분리하고 HCFC-133a를 1단계 반응으로 재순환시키는 것으로 이루어지는 2단계 기상반응에 의해, HFC-134a, HFC-125 및 HFC-143a를 동시에 제조하는 방법이 제공된다.

Process for production of fluorinated hydrocarbons

一种用于氟化反应的含铬催化剂，它含有一定量的提高活性的锌或锌化合物。一种通过引入一定量的提高活性的锌或锌化合物至催化剂中增加用于氟化反应的含铬催化剂活性的方法，以及一种生产氟代烃，特别是生产1，1，2-四氟乙烷的方法，它包括在汽相中有用锌提高活性的含铬催化剂存在条件下，将烃或卤代烃特别是1-氯-2，2，2-三氟乙烷和氟化氢进行反应。

Method of extraction of hydrogen fluoride

FIELD: inorganic chemistry, chemical technology. SUBSTANCE: invention relates to method of separation of hydrogen fluoride from gaseous organic compounds and extraction of separated hydrogen fluoride from a mixture. Method involves treatment of gaseous mixture with alkaline metal fluoride solution in hydrogen fluoride, separation of gaseous phase depleted by hydrogen fluoride and comprising organic compound from liquid phase enriched with hydrogen fluoride and the following extraction of hydrogen fluoride from liquid phase. Invention ensures to extract hydrogen fluoride from mixture comprising small amount of hydrogen fluoride and extract hydrogen fluoride from mixture where organic compound and hydrogen fluoride form azeotropic or close to azeotropic mixture. EFFECT: improved method of extraction and separation. 20 cl, 1 dwg д обу6бгс пы сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2194 007‘ (51) МПК? 13) С2 С О1В 7/19, С 07С 17/20 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 99123531/12, 06.04.1998 (24) Дата начала действия патента: 06.04.1998 (30) Приоритет: 09.04.1997 СВ 9707176.5 (46) Дата публикации: 10.12.2002 (56) Ссылки: МО 94/20412 А, 15.09.1994. ЗЦ 189409 А, 12.10.1966. $Ц 3968171 А, 29.01.1974. $4 380629 А, 03.08.1973. КЦ 2022914 СЛ, 15.11.1994. КЦ 94019408 А1, 10.01.1996. ЕР 596514 А, 11.05.1994. \МО 9516654 А, 19.10.1995. СВ 1332968 АЛ, 10.10.1973. 4$ 5362469 А, 08.11.1994. ЕК 2675496 АЛ, 23.10.1992. ЕР 612709 АЛ, 31.08.1994. (85) Дата перевода заявки РСТ на национальную фазу: 09.11.1999 (86) Заявка РСТ: СВ 98/01016 (06.04.1998) (87) Публикация РСТ: М/О 98/45209 (15.10.1998) (98) Адрес для переписки: 103735, Москва, ул. Ильинка 5/2, "Союзпатент", Высоцкой Н.Н. (71) Заявитель: ИНЕОС ФЛУОР ХОЛДИНГЗ ЛИМИТЕД (СВ) (72) Изобретатель: ЭВИНГ Пол Николас (СВ), ЛОУ Роберт Эллиотг (СВ), ШИЛДЗ Чарльз Джон (СВ) (73) Патентообладатель: ИНЕОС ФЛУОР ХОЛДИНГЗ ЛИМИТЕД (СВ) (74) Патентный поверенный: Фомичева Тамара ...

Process for the Manufacture of Halogenated Propanes Containing End-Carbon Fluorine

본 발명의 방법은 화학식 CF 3 CHXCF 3-z Y z (식 중, X 및 Y는 H 및 Cl로 구성된 군으로부터 독립적으로 선택되고, z는 0 또는 1임)의 화합물의 제조 방법을 개시한다. 본 발명의 방법은 (1) 화학식 CCl 3 CHXCCl 3-z Y z 의 화합물, 화학식 CCl 2-z Y z =CXCCl 3 의 화합물, 화학식 CCl 2 =CXCCl 3-z Y z 의 화합물 (식 중, X 및 Y는 H 및 Cl로 구성된 군으로부터 독립적으로 선택되고, z는 0 또는 1임) 및 그의 혼합물로 구성된 군으로부터 선택된 출발 물질을 200 ℃ 미만의 온도에서 불화수소와 접촉시켜 상기 출발 물질의 불화 생성물 (이는 화학식 C 3 HXY z Cl 6-z-x F x 의 포화 화합물 및 화학식 C 3 XY Z Cl 5-Z-y F y 의 올레핀계 화합물 (식 중, x는 1 내지 6-z의 정수이고, y는 1 내지 5-z의 정수임)로 구성된 군으로부터 선택된 화합물 90 몰% 이상을 포함하며, 약 40 몰% 이하의 CF 3 CHXCF 3-z Y z 를 포함함)을 제조하는 단계; The process of the invention discloses a process for the preparation of compounds of formula CF 3 CHXCF 3-z Y z , wherein X and Y are independently selected from the group consisting of H and Cl, z is 0 or 1. The process of the invention comprises (1) a compound of formula CCl 3 CHXCCl 3-z Y z , a compound of formula CCl 2-z Y z = CXCCl 3 , a compound of formula CCl 2 = CXCCl 3-z Y z , wherein X And Y is independently selected from the group consisting of H and Cl, z is 0 or 1) and a starting material selected from the group consisting of mixtures thereof in contact with hydrogen fluoride at a temperature of less than 200 ° C. (It is a saturated compound of the formula C 3 HXY z Cl 6-zx F x and an olefin compound of the formula C 3 XY Z Cl 5-Zy F y , wherein x is an integer of 1 to 6-z, and y is 1 To at least 90 mole% of a compound selected from the group consisting of 1 to 5-z, and up to about 40 mole% of CF 3 CHXCF 3-z Y z ; (2) 단계 (1)에서 제조된 상기 포화 화합물 및 상기 올레핀계 화합물로 구성된 군으로부터 선택된 화합물을 불화 촉매의 존재하에 200 ℃ 내지 약 400 ℃의 온도에서 불화수소와 증기상 접촉시키는 단계; 및 (2) vapor-contacting hydrogen fluoride with a compound selected from the group consisting of the saturated compound prepared in step (1) and the olefinic compound at a temperature of 200 ° C. to about 400 ° C. in the presence of a fluorination catalyst; And (3) 단계 (1)에서 제조된 상기 포화 화합물 (여기서, x는 1 내지 5-z의 정수임) 및 상기 올레핀계 화합물 충분량을 증기상 불화 촉매의 존재하에 200 ℃ 내지 약 400 ℃의 온도에서 불화수소와 증기상 반응시켜, 단계 (1) 및 ...

Fluorination of trichloroethylene

Process for the production of dichlorotrifluoroethane

디클로로트리플루오로에탄의 제조 공정이 기술된다. 이 공정은, 플루오르화 촉매 존재하의 하나 이상의 반응기 내에서, 기상(vapour phase)에서, 고온에서, 퍼클로로에틸렌을 불화수소(HF)와 반응시키는 단계를 포함한다. 이 공정은 유입구(inlet) 측으로부터 유출구(outlet) 측까지 상기 또는 각각의 반응기를 가로지르는 온도 증가가 제어되도록 작동한다. 이 디클로로트리플루오로에탄은 정제되어 그대로 사용되거나 또는 펜타플루오로에탄을 제조하는 데에 사용될 수 있다. Processes for preparing dichlorotrifluoroethane are described. This process includes reacting perchlorethylene with hydrogen fluoride (HF) in a vapor phase, at a high temperature, in one or more reactors in the presence of a fluorination catalyst. This process operates so that the temperature increase across the or each reactor from the inlet side to the outlet side is controlled. This dichlorotrifluoroethane can be purified and used as is or used to prepare pentafluoroethane.

Nickel-substituted and mixed nickel- and cobalt-substituted chromium oxide compositions, preparation thereof, and application thereof as catalysts and catalyst precursors

FIELD: isomerization and disproportionation catalysts. SUBSTANCE: invention relates to crystalline α-chromium oxide, chromium-containing catalytic compositions, method for preparation thereof, and to a process of fluorine distribution in hydrocarbon and/or halogenated hydrocarbon in presence of indicated catalytic compositions. In claimed α-chromium oxide, about 0.05 to about 2 atomic % chromium in the lattice of α-chromium oxide is substituted by nickel atoms and, optionally, further chromium atoms in the lattice are substituted by trivalent cobalt atoms, the total amount of nickel and trivalent cobalt atoms in the α-chromium oxide lattice not exceeding 6 atomic %. Claimed α-chromium oxide is prepared via coprecipitation of solid substance by introducing ammonium hydroxide, this method being supplemented by introducing an excess of ammonium nitrate into precipitated mixture before dehydration step and calcination step at 375 to 1000°C in presence of oxygen. Chromium-containing catalytic compositions containing crystalline nickel-substituted α-chromium oxide as chromium-containing component optionally treated with fluorination agent are also claimed. Composition preparation procedure comprises: (a) coprecipitation of solid substance by introducing ammonium hydroxide into aqueous solution of soluble bivalent nickel salt, soluble trivalent chromium salt, and optionally soluble bi- or trivalent cobalt salt, wherein solution contains at least three moles nitrate per mole chromium and has concentration of nickel from about 0.05 to about 2 mol % based on total content of nickel, chromium, and cobalt (if present) in solution and total concentration of nickel and cobalt (if present) not higher than 6 mol % on the same basis; (b) collecting coprecipitated solid substance obtained in step (a); (c) drying collected solid substance; and (d) calcination of dried solid substance at 375 to 1000°C in presence of oxygen. EFFECT: increased activity of catalytic composition in above- ...

Method for jointly producing various alkenyl halides and hydrofluoroalkanes

본 발명은 시스-1-클로로-3,3,3-트리플루오로프로펜을 제1 반응기에 유입시켜, 제1 촉매의 작용하에서 이성질체화 반응을 발생시키고, 반응 생성물을 정류하여 트랜스-1-클로로-3,3,3-트리플루오로프로펜 제품을 얻고, 30~70wt%의 트랜스-1-클로로-3,3,3-트리플루오로프로펜을 불화수소와 혼합한 후 제2 반응기에 유입시키고, 제2 촉매의 작용하에서 반응시켜, 제2 반응기 반응 생성물을 얻고, 제2 반응기의 반응 생성물을 상분리기에 유입시켜 분리하고, 얻어진 유기상을 정류하여, 트랜스-1,3,3,3-테트라플루오로프로펜, 시스-1,3,3,3-테트라플루오로프로펜 및 1,1,1,3,3-펜타플루오로프로판 제품을 얻는 다양한 알케닐 할라이드 및 하이드로플루오로알칸을 공동으로 생산하는 방법을 공개했다. 본 발명은 공정이 간단하고, 효율이 높으며, 조작 유연성이 크고, 투자가 적으며, 에너지 소모가 낮은 장점이 있다. In the present invention, cis-1-chloro-3,3,3-trifluoropropene is introduced into the first reactor to generate an isomerization reaction under the action of the first catalyst, and the reaction product is rectified to trans-1- Chloro-3,3,3-trifluoropropene product was obtained, 30-70wt% of trans-1-chloro-3,3,3-trifluoropropene was mixed with hydrogen fluoride and then transferred to the second reactor. Inlet and reacted under the action of the second catalyst to obtain a second reactor reaction product, the reaction product of the second reactor is introduced into a phase separator for separation, and the obtained organic phase is rectified, trans-1,3,3,3 -Various alkenyl halides and hydrofluoroalkanes to obtain tetrafluoropropene, cis-1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane products Co-production method disclosed. The present invention has the advantages of simple process, high efficiency, high operation flexibility, low investment, and low energy consumption.

Bulk catalysts based on chromium and on nickel for gas-phase fluorination of halogenated hydrocarbons

用一种镍衍生物溶液简单浸渍块状铬氧化物得到了用HF气相氟化卤化烃所使用的有效催化剂，该铬氧化物的BET比表面高于150米 2 /克，孔体积高于0.15毫升/克。

Bulk catalysts based on chromium and on nickel for the gas-phase fluorination of halogenated hydrocarbons

기체상에서 HF 에 의한 할로겐화 탄화수소의 불소화에 유용한 촉매는 벌크 산화크롬에 니켈 유도체의 용액을 간단히 함침시켜서 수득하며, 사용된 산화크롬은 BET 비표면적이 150 m 2 /g 초과이며, 기공 부피가 0.15 ml/g 초과이다. Catalysts useful for the fluorination of halogenated hydrocarbons by HF in the gas phase are obtained by simply impregnating a solution of nickel derivatives in bulk chromium oxide, which has a BET specific surface area of more than 150 m 2 / g and a pore volume of 0.15 ml. greater than / g.

Process for producing 1,1,1,3,3-pentafluoropropane

Fluorination method of perchloroethylene or pentachloroethane

The method for preparing 1,2- dichloro hexafluoro cyclopentene

公开了一种制备1,2‑二氯六氟环戊烯的方法，第一步反应以双环戊二烯为原料，氮气或其它惰性气体作为稀释剂，气相条件下加热裂解得到环戊二烯；第二步反应再以环戊二烯为原料，在液相条件下与氯气发生氯化反应得到1,2,3,4‑四氯环戊烷；第三步反应则是以1,2,3,4‑四氯环戊烷为原料，在铬基催化剂存在的条件下，与氟化氢和氯气进行气相氯氟化反应得到1,2‑二氯六氟环戊烯。该方法起始原料易得、氟化催化剂活性稳定、目标产物产率高、适用于大规模气相连续制备1,2‑二氯六氟环戊烯。

Catalyst for fluorination of low aliphatic halogen-containing hydrocarbons and method for production of low aliphatic fluorohydrocarbons

FIELD: catalytic chemistry. SUBSTANCE: catalyst contains, mas.%: promoter in form of zinc or zinc compound 0.5-25; the balance, chromium oxide (3). Catalyst additionally contains aluminium oxide or fluoride, or magnesium oxide. Product: low aliphatic fluorohydrocarbons. Reagent 1: alkane or alkene C 1 -C 4 , 1 atom of chlorine. Reagent 2: hydrogen fluoride. Reaction conditions: vapor phase; 180-350 C. EFFECT: higher efficiency. 9 cl, 6 tbl 9 0сС ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ” 2 032 464 ' 13) СЛ 57 МК В 04 4 23/26, 23/06, С 07 С 17/08, 19/08 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5010862/04, 13.02.1992 (30) Приоритет: 07.03.1991 СВ 9104775.3 (46) Дата публикации: 10.04.1995 (56) Ссылки: Патент США М 3755414, кл. 260-653.6, опублик.1973. (71) Заявитель: Империал Кемикал Индастриз ПЛС (СВ) (72) Изобретатель: Джон Дэвид Скот[СВ], Майкл Джон Ватсон[СВ] (73) Патентообладатель: Империал Кемикал Индастриз ПЛС (СВ) (54) КАТАЛИЗАТОР ДЛЯ ФТОРИРОВАНИЯ НИЗШИХ АЛИФАТИЧЕСКИХ ГАЛОГЕНСОДЕРЖАЩИХ УГЛЕВОДОРОДОВ И СПОСОБ ПОЛУЧЕНИЯ НИЗШИХ АЛИФАТИЧЕСКИХ ФТОРУГЛЕВОДОРОДОВ (57) Реферат: Использование: каталитическая химия. Сущность изобретения: катализатор содержит промотор-цинк или соединение цинка 0,5 - 25 мас. % и оксид хрома — (3)-остальное. Катализатор дополнительно содержит оксид или фторид алюминия или оксид магния. Продукт - низшие алифатические фторуглеводороды. Реагент 1: алкан или алкен С.-Сд , 1 атом хлора, реагент 2: фтористый водород. Условия реакции: паровая фаза, 180 - 350°С. 2 си 6 зп. ф-лы, 6 табл. 2032464 С1 КО 9 0сС ПЧ Го КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ (19) 13) ВИ "” 2 032 464” С1 о В 01 4 23/26, 23/06, С 07 С 17/08, 19/08 12) АВЗТКАСТ ОЕ 1МУЕМТОМ (21), (22) АррИсаНоп: 5010862/04, 13.02.1992 (30) Рпогйу: 07.03.1991 СВ 9104775.3 (46) Рае ог рибИсаНоп: 10.04.1995 (71) АррИсапе: |трега! Кепка! пдазмх РЬ$ (СВ) (72) пуетщог. — О7поп Оейма ЗкосСвВ], Мак О7Поп Маоп[СВ] (73) Ргорпеюг: |трепа! Кепка! ...

Method for producing 1,1, 1-trifluoro-2-chloroethane and/or trifluoroethylamine

本发明涉及一种用于生产1,1,1‑三氟‑2‑氯乙烷(HCFC‑133a)和/或三氟乙胺(TFEA)的方法，其中至少一个反应步骤在微反应器中进行。特别地，本发明的优选实施例涉及一种用于生产1,1,1‑三氟‑2‑氯乙烷(HCFC‑133a)和/或三氟乙胺(TFEA)的方法，其中至少一个反应步骤在由SiC构成或制成的微反应器(“SiC微反应器”)中或者在由合金(例如Hastelloy C)构成或制成的微反应器中进行。在制造HCFC‑133a和/或TFEA时，HCFC‑133a和/或TEFA可通过(例如)仅使用低能耗的方法容易地进行纯化和/或分离，并且进行纯化和/或分离的方法优选不需要蒸馏。有利地，通过相分离可以容易地以节能方式从过量的HF和催化剂中分离出HCFC‑133a和/或TEFA。

Method for producing fluorinated organic compounds

【課題】フッ化有機化合物の新規な調製方法を提供する。【解決手段】式（Ｉ）の少なくとも１つの化合物を、式（ＩＩ）の少なくとも１つの化合物に転換する工程を含む、フッ化有機化合物の製造方法である。Ｃ（Ｘ）ｍＣＣｌ（Ｙ）ｎＣ（Ｘ）ｍ（Ｉ）ＣＦ３ＣＦ＝ＣＨｚ（ＩＩ）（Ｘ、Ｙ及びＺは、各々独立に、Ｈ、Ｆ、Ｃｌ、Ｉ又はＢｒ；ｍは、各々独立に、１、２又は３；ｎは０又は１）【選択図】なし