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 ДЕГИДРОГАЛОГЕНИРОВАНИЯ ГАЛОГЕНИРОВАННОГО ОРГАНИЧЕСКОГО НЕПОЛИМЕРНОГО СОЕДИНЕНИЯ

Изобретение относится к способу дегидрогалогенирования хлорированного или фторированного органического неполимерного соединения с использованием катализатора, включающего ионную жидкость формулы [Cat+][X-], где [Cat+] представляет собой органический катион одного или нескольких типов, выбранных из (i) катионов типа фосфония,(ii) катионов типа аммония и (iii) катионов гетероароматической природы, содержащих атомы N или P в ароматическом кольце, причем кольцо может относиться к типу имидазолия, пиридиния, пирролидиния, бензимидазолия, фталазиния, пиперидиния, пирролия, хиназолиния, хинолиния, изохинолиния, индолиния или индолия; и [X-] представляет собой анион одного или нескольких типов. Технический результат - устойчивая степень превращения при высокой селективности более 95%. 8 з.п. ф-лы, 7 ил., 1 табл., 1 пр.

СПОСОБ ПОЛУЧЕНИЯ ЦИКЛИЧЕСКИХ ДИКЕТОНОВ

Изобретение относится к способу получения циклических 1,3-дикетонов, карбонилированных в положении 2, формулы I ! ! в которой Y обозначает ! ! где А4 обозначает CRa1 или N-(O)p, A1 обозначает CR1R2, A2 обозначает (CR3R4)n, А3 обозначает CR5R6, Ra1, Ra2, Ra3, Ra4, Ra5, R1, R2, R3, R4, R5, R6, p, n имеют значения, приведенные в формуле изобретения, включающему а) реакцию соответствующего соединения формулы II ! ! с источником брома или хлора, с получением соединения формулы III ! ! в которой Х обозначает хлор или бром; ! b) реакцию соединения формулы III с водой, с получением соединения формулы IV ! ! с) превращение соединения формулы IV с использованием соединения формулы V ! ! в которой М обозначает катион водорода или ион щелочного металла, ион щелочноземельного металла или ион аммония, в соединение формулы VI ! , ! и ! d) обработку соединения формулы VI источником цианида в присутствии основания. Способ позволяет получать циклические дикетоны с высоким выходом и хорошим качеством по простой ...

СПОСОБ ПОЛУЧЕНИЯ ГЕКСАФТОРБУТАДИЕНА

Изобретение относится к способу получения гексафторбутадиена путем проведения реакции дехлорирования 1,2,3,4-тетрахлоргексафторбутана цинком в растворителе. В качестве растворителя используют водно-спиртовый азеотроп. Обычно применяют спирты, хорошо растворимые в воде, чаще всего этиловый и изопропиловый. Процесс ведут путем равномерной дозировки 1,2,3,4-тетрахлоргексафторбутана в смесь водно-спиртового азеотропа с цинком, при температуре от 40°С до температуры кипения растворителя (лучше 45-70°С) с одновременным отбором выделяющегося гексафторбутадиена. Водно-спиртовый азеотроп может быть выделен из реакционной массы после реакции и использован повторно. Технический результат - значительное упрощение процесса и получение чистого гексафторбутадиена. 4 з.п. ф-лы.

СПОСОБ ПОЛУЧЕНИЯ ГЕКСАФТОРБУТАДИЕНА И 1,2- ДИХЛОРГЕКСАФТОРЦИКЛОБУТАНА

Изобретение относится к способам получения фторсодержащих мономеров и к способам получения галогенсодержащих циклических соединений, а именно: к получению гексафторбутадиена и 1,2-дихлоргексафторциклобутана (С4Cl2F6-цикло). Способ получения гексафторбутадиена осуществляют пиролизом хлортрифторэтилена с последующим дехлорированием 1,2-дихлоргексафторбутена-3 в присутствии цинка в растворителе. Причем исходный хлортрифтоэтилен пиролизуют при температуре от 505 до 600°С в течение 0,5-15 с. Полученный пиролизат конденсируют при температуре от 0 до минус 10°С, после чего конденсат ректифицируют с выделением фракции, кипящей при 59,0-59,5°С и содержащей 1,2-дихлоргексафторциклобутан С4F6Cl2. Фракцию, кипящую при 63, 5-64°С и содержащую 1,2-дихлоргексафторбутен-3, подвергают дехлорированию в полярном растворителе при температуре 37-50°С. Продукты, не сконденсированные на стадии конденсации, возвращают на пиролиз. Способ позволяет проводить стадию пиролиза хлортрифторэтилена с конверсией 50-70% ...

СПОСОБ И СРЕДСТВА ПОЛУЧЕНИЯ ФТОРУГЛЕРОДНЫХ СОЕДИНЕНИЙ

Изобретение относится к способу и установке для получения фторуглеводородных соединений. Способ включает стадии создания высокотемпературной зоны и подачи по крайней мере одного исходного материала в высокотемпературную зону для получения нагретого газа, включающего фторсодержащие и углеродсодержащие частицы. Молярное отношение C:F в массе нагретого газа контролируется при заданной величине 0,4 - 2,0; удельная энтальпия массы нагреваемого газа контролируется при заданной величине ≈1 - 10 кВт/ч•кг в течение промежутка времени, достаточного для образования реакционноспособной термической газовой смеси, содержащей реакционноспособные фторсодержащие и углеродсодержащие промежуточные вещества. Затем реакционноспособная термическая смесь охлаждается с такой скоростью и до такой температуры, которые приводят к получению конечного продукта, включающего желаемое фторуглеводородное соединение. Исходный материал обычно представляет собой C-C- перфторированное соединение углерода общей формулы CF, ...

СПОСОБ ПОЛУЧЕНИЯ МЕТИЛОВОГО СПИРТА ИЗ МЕТАНА

Предлагается улучшенный способ получения метилового спирта (метанола) из метана, в котором используются две реакционные стадии, осуществляемые в тандемном (последовательно соединенном) режиме. На первой реакционной стадии одновременно протекают две химические реакции: а) перхлорэтилен (ССIССI) оксихлорируют хлористым водородом и кислородом, в результате чего получают гексахлорэтан (ССIССI) и воду; б) хлористый метил (СНСI) гидролизуют водой и получают метиловый спирт и хлористый водород. На второй реакционной стадии метан хлорируют гексахлорэтаном и получают хлористый метил, хлористый водород и перхлорэтилен. Путем рециркулирования на первую стадию хлористого метила, хлористого водорода и регенерированного перхлорэтилена, образовавшихся на второй стадии, можно проводить процесс в сбалансированном режиме, при котором внутренний расход хлористого водорода равен его образованию.

СПОСОБ ГИДРОДЕХЛОРИРОВАНИЯ ДЛЯ ПОЛУЧЕНИЯ ДИГИДРОФТОРИРОВАННЫХ ОЛЕФИНОВ

... 1. Способ получения фторсодержащих олефинов, включающий контакт хлорфторалкена формулы RCCl=CClR, где каждый Rявляется перфторалкильной группой, независимо выбранной из группы, содержащей CF, CF, n-CF, i-CF, n-CF, i-CFи t-CF, с водородом в присутствии катализатора при температуре, достаточной, чтобы вызвать замещение заместителей хлора хлорфторалкена водородом, для получения фторсодержащего олефина формулы E- или Z-RCH=CHR, где каждый Rи Rявляются перфторалкильными группами, независимо выбранными из группы, содержащей CF, CF, n-CF, i-CF, n-CF, i-CFи t-CF, где указанный катализатор является композицией, включающей хром и никель.2. Способ по п.1, где указанный катализатор является композицией, включающей от приблизительно 10% до приблизительно 90% хрома и от приблизительно 90% до приблизительно 10% никеля.3. Способ по п.1, где каталитическая композиция дополнительно включает щелочной металл, выбранный из калия, цезия и рубидия.4. Способ по п.3, где указанный щелочной металл составляет от ...

Способ получения альфа, омега-перфтордиолефинов

CПOCOБ ПOЛУЧEHИЯ 1,1,1,2-TETPAФTOPЭTAHA

Способ получения низших алкенов или хлор- или бромалкенов

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 PERHALOFLUORIERTEN BUTANEN

Hydrierungsträgerkatalysator enthaltendes Katalysatorssystem und Verfahren zur Hydrodechlorierung von Fluorchlorkohlenwasserstoffen

VERFAHREN ZUR HERSTELLUNG VON FLUORALKENYLTHIO HETEROZYCLISCHE DERIVATE

Verfahren zur Herstellung von perhalogenierten Olefinen

Verfahren zur Herstellung von Fluorethylenen und Chlorfluorethylenen.

Verfahren zur Herstellung von hochfluorierten aromatischen Kohlenwasserstoffen

VERFAHREN ZUR REDUKTIVEN DEHALOGENIERUNG VON ORGANISCHEN HALOGENVERBINDUNGEN.

VERFAHREN ZUR ZERSETZUNG HALOGENIERTER ORGANISCHER VERBINDUNGEN

VERFAHREN ZUR HERSTELLUNG VON GESÄTTIGTEN HALOGENIERTEN KOHLENWASSERSTOFFEN.

FLUORHALTIGE 1.3-DIENE, DEREN HERSTELLUNG UND DEREN VERWENDUNG

Cleavage of halogen(s) from fluoro:halo cpds.

The cleavage of 1C fluoro-halo cpds. of formula CFaHalbHc (I) comprises reacting in a condensed phase with hydrogen in the presence of a supported precious metal catalyst (II); Hal = Cl and/or Br; a = 1, 2 or 3; b = 1, 2, or 3; c = 0, 1 or 2; and a + b + c = 4.

Treatment of chlorinated organic residues

A process for the thermal treatment of highly chlorinated heavy hydrocarbon residues that comprise hexachlorethane and/or hexachlorobutadiene, together with chlorinated aromatic hydrocarbons and, optionally, tar-like products, comprises bringing a mixture of the said compounds and one or more C2- 4 hydrocarbons and/or C2- 4 chlorinated hydrocarbons capable of reacting with free chlorine in the gaseous state into a single solids-free reaction zone having a ratio, as hereinbefore defined, of the total surface of said reaction zone to the cross-section of said reaction zone higher than 500 under conditions including a temperature ranging from 400 DEG to 550 DEG C., and a turbulent flow rate, i.e. having a Reynolds mean-value number higher than 2000, whereby the production of non-cyclic light chlorinated hydrocarbons containing not more than four carbon atoms in the molecule is maximized.

METHOD OF PREPARING 1,1,1,2-TETRAFLUOROETHANE FROM 1,1-DICHLORO-1,2,2,2-TETRAFLUOROETHANE

ANAESTHETIC CYCLOBUTANE COMPOUNDS

... 1342427 Fluorinated cyclobutanes W R GRACE & CO 22 Nov 1971 [20 Nov 1970 27 Nov 1970 10 May 1971 9 Aug 1971 (4) 7 Sept 1971] 54187/71 Heading C2C [Also in Division A5] Novel fluorinated cyclobutanes of the formula wherein X is F, Cl, Br or CH 3 , and Y is H, Cl, Br or CF 3 , X being Cl or CH 3 when Y is Br, X being F or Cl when Y is Cl and Y being other than H when X is Cl are prepared by (a) reacting compounds of the formula XHC=CFY with 1,1- difluoroethylene, or (b) reacting compounds of the formula XHC = CH 2 with compounds of the formula YFC = CF 2 . 2 - Chloro - 2,3,3 - trifluoro - 1 - methylcyclobutane, 2,2,3,3 - tetrafluoro - 1 - methylcyclobutane and 1 - bromo 1,4,4 - trifluoro - 2- methylcyclo-butane are obtained by reacting propylene with ClFC = CF 2 , F 2 C = CF 2 and BrFC = CF 2 respectively. 1 - Chloro - 2,2,3,3 - tetrafluorocyclobutane, and 1 - chloro - 2,3,3 - trifluorocyclobutane are made by reacting vinyl chloride with CF 2 =CF 2 and CHF = CF 2 . 1,2,2,3,3 - Pentafluorocyclopentane ...

Catalytic method of replacing halogen in halocarbons

As replacements for chlorofluorocarbons, hydro(chloro)fluorocarbons are synthesised by hydrogenating chlorofluorocarbons over a Pd/ZnO/ gamma -Al2O3 catalyst. The ZnO is partially reduced before use and assists the Pd to function catalytically for days instead of hours despite the evolution of halogen.

Preparation of 2-Methyl-3-aminobenzotrifluoride

... 2-methyl-3-aminobenzo-trifluoride is prepared with high yields and high productivity by first halogenating o-trifluoromethylhenzalhalide, then secondly hydrogenating 2-trifluoromethyl-4-halogeno-benzalhalide formed by the first reaction, then thirdly nitrating 2-methyl-monohalogenobenzotrifluoride formed by the second reaction, and then fourthly hydrogenating 2-methyl-3-nitro-5-halogenobenzotrifluoride formed by the third reaction. 2-Trifluoromethyl-4-chlorobenzalchloride and 2-methyl-3-nitro-5-chlorobenzo-trifluoride are also claimed per se.

Preparation of 2-methyl-3-aminobenzotrifluoride

OLEFINE DERIVATIVES

CHEMICAL PROCESS

Improvements in or relating to dechlorination of organic compounds

Halogenated hydrocarbons containing at least three halogen (chlorine with or without fluorine) atoms per molecule, or saturated halocarbons containing chlorine with or without fluorine, are dechlorinated to halo-olefines with metal dechlorinating agents in the presence of part of the bottoms from a previous dechlorination reaction with a dechlorinating agent. In an example trifluorotrichloroethane is dechlorinated with metallic zinc and alcohol to give trifluorochloroethylene; other halo-olefins which may be produced by the process are vinyl chloride from trichloroethane, vinyl fluoride from dichlorofluoroethane, difluoroethylene from dichlorodifluoroethane, and tetrafluoroethylene from dichlorotetrafluoroethane.

METHYL 5(6) CYCLOPROPYLETHYL SULPHINYL-BENZIMID AZOLE 2 CARBAMATE PARTICULARLY ACTIVE AGAINST GASTROENTERIC AND LUNG PARASITES

Dehalohydrogenation of halohydrocarbons

In a modification of the preferred process of the parent Specification, wherein contaminated catalyst is withdrawn from the reaction zone, stripped of absorbed hydrocarbons and halohydrocarbons, contacted with air or steam at a temperature at which carbon is oxidized and returned to the reaction zone, there is introduced into the reaction zone a volatile hydrocarbon or halohydrocarbon at a rate to utilize as heat of vaporization the excess heat generated in the exothermic dehalohydrogenation reaction, thereby to maintain the temperature substantially constant in the reaction zone. Preferably, the contaminated catalyst is contacted with a stream of air in the regeneration zone at a temperature of from 350 DEG to 550 DEG C. maintained by the controlled introduction of liquid water into that zone. Lost cuprous halide catalyst is preferably replaced at least periodically by introducing into one of the zones through which the catalyst passes metallic copper, a copper salt or copper oxide. Advantageously ...

Heterocyclic and phenyl compounds.

A compound of formula (i)r-s(o)nch2ch2ch=cf2, or a salt thereof, wherein n is 0, 1 or 2; and r is a group of formulae (ii)to (xxi), wherein: the s ch2ch2ch=cf2 group is at least one of r1 (when attached to a carbon atom). R2, r3, r4, r5 or r6; r1 (when attached to a ca atom)r2, r3 r4, r5 and r6 are each independently hydrogen, optionally substituted alkyl, optionally substituted alkenyl, alkynyl, cycloalkyl, alkylcycloalkyl, alkoxy, alkenyloxy, alkynyloxy, hydroxyalkyl, alkoxyalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, optionally substituted heteroarylalkyl, optionally substituted aryloxy, optionally substituted arylalkoxy, optionally substituted aryloxyalkyl, optionally substituted heteroaryloxy, optionally substituted heteroarylalkoxy, optionally substituted heteroaryloxyalky, haloalkyl, haloalkenyl, haloalkynyl, haloalkoxy, haloalkenyloxy, haloalkynyloxy, halogen, hydroxy, cyano, notro, -nr7r8, -nr7cor8, -nr7csr8, -nr7so2r8 ...

Heterocyclic and phenyl compounds

(4,4-Difluorobut-3-enylthio)-substituted heterocyclic or carbocyclic ring compounds having pesticidal activity

Subtituée phénylurée news, its preparation and its applications like weedkillers.

Heterocyclic and phenyl compounds

PROCEDURE FOR THE PRODUCTION OF NEW POLYENVERBINDUNGEN

PROCEDURE FOR THE REDUCTIVE ONE DEHALOGENIERUNG OF ORGANIC HALOGEN CONNECTIONS.

PROCEDURE FOR THE REDUCTIVE ONE DEHALOGENIERUNG OF HALOGEN CONNECTIONS.

PROCEDURE FOR THE PRODUCTION OF PENTAFLUORETHAN BY HYDROGENOLYSIS OF CHLORPENTAFLUORETHAN.

PROCEDURE FOR THE SELECTIVE HYDROGENOLYSIS OF PERHALOGENETHANDERIVATEN.

PROCEDURE FOR THE PRODUCTION OF FLUORETHYLENEN AND CHLORFLUORETHYLENEN.

FLAME RESISTANT ONE, BIOLOGICAL DEGRADABLE ONE FUNCTIONAL LIQUID.

CYCLOHEXANE DERIVATIVE

PROCEDURE FOR the TRANSFORMATION OF 1,2-DICHLORPROPAN IN PROPYLENE

VERFAHREN ZUR HERSTELLUNG VON BROMFLUORMETHAN

INSECTICIDES AND AKARIZIDE 1,4-DIARYL-2,3-DIFLUOR 2-BUTENE

(4,4-DIFLUORBUT-3-ENYLTHIO) - HETEROCYCKI OR CARBOCYCLI RING SUBSTITUTED CONNECTIONS WITH PESTICIDER EFFECT

DERMATIKUM AND USE FROM SEMIFLUORIERTEN ALKANES TO THE PRODUCTION OF DERMATIKA

HYDROGENATION CARRIER CATALYST ABSTENTION CATALYST SYSTEM AND PROCEDURE FOR HYDRODECHLORIERUNG OF FLUORINE CHLORINATED HYDROCARBONS

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

SYNTHESIS OF VICINALEN AND INTERMEDIATE PRODUCTS OF IT DIFLUORAROMATEN

Collection assembly

High temperature process for production of fluorocarbon compounds plasma burner and apparatus therefor

Preparation of pentafluoroethane by hydrogenolysis of chloropentafluoroethane

Process for the manufacture of 1,1,1,3,3-pentafluoropropane

1,4-diaryl-2,3-difluoro-2-butene insecticidal and acaricidal agents

HYDROGENOLYSIS OF HALOCARBON MIXTURES

A PROCESS FOR THE PREPARATION OF O-CHLOROFLUOROBENZENE

Chemical processing microsystems, diffusion-mixed microreactors and methods for preparing and using same

HYDRODEHALOGENATION OF CF3 CHC1F IN THE PRESENCE OF SUPPORTED PD

Process for converting perchloroethylene to trichloroethylene

Processes for converting chlorinated alkane byproducts or waste products to useful, less chlorinated alkenes

REAGENT AND METHOD FOR DECOMPOSING HALOGENATED ORGANIC COMPOUNDS

A reagent, comprising the product of the reaction of an alkali metal with a polyglycol or a polyglycol monoalkyl ether and oxygen, effects complete decomposition of halogenated organic compounds, such as polychlorinated biphenyls (PCBs), when mixed therewith in the presence of oxygen.

MANUFACTURE OF HALOGENATED HYDROCARBONS

A new route to tetrafluoroethane consists of the reaction of 1,1-dichloro 1,2,2,2-tetrafluoroethane and/ or 1,2-dichloro-1,1,2,2-tetrafluoroethane with hydrogen in the vapour phase in the presence of an hydrogenation catalyst, preferably a palladium catalyst.

SUBSTANTIALLY NON-FLAMMABLE BIOLOGICALLY DEGRADABLE FUNCTIONAL FLUID

ORGANOMETALLIC COMPOUNDS WITH FUSED INDENYL LIGANDS

The present invention relates to transition metal organometallic compounds with an indenyl ligand attached in position 2 and fused in position 5,6, to a process for the production thereof and to the use thereof as catalysts for the (co)polymerization of olefinic and/or diolefinic monomers.

SEMI-FLUORINATED ALKANES AND THEIR USE

PROCESS FOR THE PREPARATION OF POLYCHLORCYCLOPENTANE AND HEXACHLORCYCLOPENTADIENE

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 ...

SEMI-FLUORINATED ALKANES AND THEIR USE

The invention concerns semi-fluorinated alkanes of the general formulae R F R H and R F R H R F, R F being a linear or branched perfluoroalkyl group and R H being a linear or branched saturated (hydrocarbon)-alkyl group, used a ophtalmological remedy.

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 ...

PROCESS

A method of providing a blend of tetra-and/or pentafluoroalkanes comprising hydrogenating a pentafluoropropene.

FLUOROPROPENE HYDROGENTATION

A method of providing a blend of tetra-and/or pentafluoroalkanes comprising hydrogenating a pentafluoropropene.

INTEGRATED PROCESS FOR THE PRODUCTION OF 1-CHLORO-3,3,3-TRIFLUOROPROPENE

The present invention is directed to processes for the production of 1233zd from 240fa and HF, with or without a catalyst, at a commercial scale. The 240fa and HF are fed to a reactor operating at high pressure. The resulting product stream comprising 1233zd, HCl, HF, and other byproducts is treated to one or more purification techniques including phase separation and one or more distillations to provide purified 1233zd, which meets commercial product specifications, i.e., having a GC purity of 99.5% or greater.

PREPARATION OF FLUOROETHYLENES AND CHLOROFLUOROETHYLENES

PROCESS FOR PREPARING A PRODUCT STREAM RICH IN NAPHTHALENE AND 2-MONOIODONAPHTHALENE

... 2086743 9204308 PCTABS00011 Disclosed is a process comprising preparing a product stream rich in naphthalene and 2-monoiodonaphthalene comprising contacting hydrogen and a feed stream containing iodonaphthalenes selected from the group consisting of monoiodonaphthalene, diiodonaphthalene and triiodonaphthalene and mixtures thereof with an X or Y type zeolite containing an ion selected from the group consisting of sodium, potassium and rubidium and a metal selected from the group consisting of palladium, platinum, rhodium and ruthenium.

Collection Assembly

HYDROGENOLYSIS OF HALOCARBON MIXTURES

... 2107802 9218446 PCTABS00016 Mixtures of halocarbons which contain fluorine and chlorine and/or bromine (e.g. a mixture of CCl2FCF3 with CClF2CF3, CCl2F2, CClF2CClF2 or CHClF2) are contacted with hydrogen in the presence of silicon carbide and/or a metal selected from aluminum, molybdenum, titanium, nickel, iron or cobalt (or their alloys) at temperatures of 350 ·C to 700 ·C and pressures of 0 to 1000 psig to obtain a product mixture which substantially corresponds in terms of the distribution of fluorine substituents on carbon atoms with the mixture of halocarbon starting materials.

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 1,3-DIFLUOROBENZENE

... of the disclosure Process for preparing 1,3-difluorobenzene Process for preparing 1,3-difluorobenzene by means of the catalytic elimination of halogen from a 1,3-difluorohalo-benzene, by reacting a 1,3-difluorohalobenzene of the formula (1) (1) in which R1 to R4 are H, Cl or Br, and at least one of the radicals R1 to R4 is Cl or Br, in the presence of a palladium catalyst and of an amine, where appropriate in the presence of water or of an organic solvent which is inert towards the reactants and the reaction conditions, with hydrogen under pressure and at temperatures from about 70.degree. to about 140.degree.C.

SEMI-FLUORINATED ALKANES AND THEIR USE

The invention concerns semi-fluorinated alkanes of the general formulae R F R H and R F R H R F, R F being a linear or branched perfluoroalkyl group and R H being a linear or branched saturated (hydrocarbon)-alkyl group.

1,4-DIARYL-2,3-DIFLUORO-2-BUTENE INSECTICIDAL AND ACARICIDALAGENTS

Pesticidal 1,4-diaryl-2,3-difluoro-2-butene compounds having the structural formula I (see fig. I) and compositions and methods comprising those compounds for the control of insect and acarid pests.

PROCESS FOR THE MANUFACTURE OF HALOCARBONS

A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1R2CBR3R4 (where A, B, R1, R2, R3 and R4 are as defined in the specification) which involves contacting a corresponding halogenated alkane, AB, with a corresponding olefin, CR1R2=CR3R4 in a solvent and in the presence of a catalyst system containing (i) at least one catalyst comprising monovalent copper, and (ii) at least one ionic promoter selected from the group consisting of substituted ammonium halides, pyridinium and substituted pyridinium halides, and quaternary salts of the type (MQ4)Y where M is an element of Group VA of the Periodic Table (i.e. N, P, As, Sb, or Bi), Q is a C1-C18 hydrocarbyl group and Y is chloride, bromide or iodide. Production of hydrofluoroalkanes by reacting selected adducts of the type produced above with HF is also disclosed. The process is run in a dinitrile or cyclic carbonate ester as solvent which divides the reaction mixture into two liquid phases.

Verfahren zur Herstellung von 4,4'-Dibrom- ,ss-dimethyl-stilben.

Procédé de préparation de composés organiques halogénés

Verfahren zur Herstellung von 1,1,1-Trifluor-2-brom-2-chlor-äthan

Procédé de préparation de composés aromatiques fluorés

Verfahren zur Herstellung von Perfluorbenzoldicarbonsäuren

Verfahren zur Herstellung von hochfluorierten organischen Verbindungen

Verfahren zur Herstellung von hochfluorierten aromatischen Verbindungen

Verfahren zur Herstellung von 1,1,1-Trifluor-2-brom-2-chlor-äthan

Verfahren zur Herstellung von 1,1,1-Trifluor-2-brom-2-chloräthan

Verfahren zur Herstellung hochfluorierter ungesättigter organischer Verbindungen

PROCESSES FOR THE PRODUCTION OF FLUOROPROPANES AND HALOPROPENES AND 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 CFCHCHF , CFCH═CHF and CFCH═CHCl , comprising:{'sub': 3', '2', '3', '2', '2', '2', '3', '2', '2', '3', '3, 'reacting at least one starting material selected from the group consisting of halopropanes of the formula CXCHClCHX, halopropenes of the formula CXCCl═CH, and 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, CFCHCHF, CFCH═CHF and CFCH═CHCl, wherein the molar ratio of HF to total amount of starting material fed to the ...

Process for cis-1-chloro-3,3,3-trifluoropropene

Disclosed is a process for the preparation of cis-1-chloro-3,3,3-trifluoropropene (cis-1233zd) comprising the steps of (a) providing CF 3 CHClCHCl 2 (233da), and (b) treating the 233da with a dechlorinating agent to produce a mixture of compounds including cis-1-chloro-3,3,3-trifluoropropene, preferably wherein the amount of the cis-isomer generated in the reaction is not less than 30%.

PROCESS FOR THE PRODUCTION OF HCFC-1233zd

A process for the manufacture of 1-chloro-3,3,3-trifluoropropene (HCFC-1233zd) at commercial scale from the reaction of HCC-240 and HF is disclosed. In one embodiment, HCC-240fa and HF are fed to a reactor operating at high pressure. Several different reactor designs useful in this process include; a stirred-tank reactor (batch and/or continuous flow); a plug flow reactor; a static mixer used as a reactor; at least one of the above reactors operating at high pressure; optionally combined with a distillation column running at a lower pressure; and combinations of the above; and/or with a distillation column. The resulting product stream consisting of 1233zd, HCl, HF, and other byproducts is partially condensed to recover HF by phase separation. The recovered HF phase is recycled to the reactor. The HCl is scrubbed from the vapor stream and recovered as an aqueous solution. The remaining organic components including the desired HCFC-1233zd are scrubbed, dried and distilled to meet commercial product specifications. 1. A process for the production of 1-chloro-3 ,3 ,3-trifluoropropene (HCFC-1233zd) comprising the steps of:(a) reacting HCC-240 and HF in a high pressure liquid phase reactor to generate an effluent reaction stream comprising HCFC-1233zd, intermediates and byproducts of HCFC-1233zd, HCl and unreacted HCC-240 and HF; and(b) at least partially condensing the effluent stream from reaction step (a) to form a condensate comprising HCFC-1233zd.2. The process of claim 1 , further comprising the following steps:(c) separating the condensate from step (b) using phase separation, to form an HF-rich layer and an organic rich layer; and(d) recycling the HF-rich layer from step (c) to the reactor in step (a).3. The process of claim 2 , further comprising the following steps:(e) feeding the organic rich layer from step (c) to an aqueous HCl recovery system to remove and recover the HCl as a solution in water;(f) distilling the HCl-free organic components from step (e) ...

Process for making tetrafluoropropene

The present invention describes a process for making CF 3 CH═CHF (HFO-1234ze). The process involves the addition of carbon tetrachloride (CCl 4 ) to 1,2-dichloroethylene to form CCl 3 CHClCHCl 2 . The compound CCl 3 CHClCHCl 2 thus can then either be treated with HF to produce CF 3 CHClCHClF as the main product, or it can be converted to CCl 2 ═CHCHCl 2 (1230za) by dechlorination. CCl 2 ═CHCHCl 2 can be treated with HF such that the main product obtained is CF 3 CHClCHClF. CF 3 CH═CHCl may be produced as a by-product, but upon treatment with HF, it affords the compound CF 3 CHClCHClF. The desired compound, CF 3 CH═CHF (HFO-1234ze), is obtained as a trans/cis mixture by dehydrochlorination of CF 3 CH 2 CHClF or by dechlorination of CF 3 CHClCHClF.

PROCESS FOR DEHYDROHALOGENATION OF HALOGENATED ALKANES

A process for the manufacture of halogenated olefins in semi-batch mode by dehydrohalogenation of halogenated alkanes in the presence of an aqueous base such as KOH which simultaneously neutralizes the resulting hydrogen halide. During the process, aqueous base is continuously added to the haloalkane which results in better yields, lower by-product formation and safer/more controllable operation. 118-. (canceled)19. A process for preparing a hydrofluoroolefin comprising:a. introducing an alkali-metal hydroxide feed stream into a reactor charged with at least one halogenated propane comprising at least one of 1-chloro-1,1,3,3,3-pentafluoropropane (HFCF-235fa) or 1,1,1,2,3,3-hexafluoropropane (HFCF-236ea)b. reacting, in a liquid phase, said halogenated propane with said an aqueous base in said reactor to produce a halogenated propene comprising 1,1,3,3,3-pentafluoropropene (HFO-1225zc); andc. removing at least a portion of said halogenated propene from said reactor as a vapor product stream,wherein steps (a), (b), and (c) are at least partially performed simultaneously.20. The process of wherein said halogenated propane is HFCF-235fa.21. The process of wherein said halogenated propane is HFCF-236fa.22. The process of further comprising refluxing at least a portion of any unreacted halogenated propane in said vapor product stream back to said reactor.23. The process of further comprises refluxing water in said vapor product stream back to said reactor.24. The process of wherein said reacting occurs at a temperature of about 40 to about 75° C.25. The process of claim 24 , wherein said reacting occurs at a temperature of about 50 to about 60° C.26. The process of claim 19 , wherein said aqueous base is an alkali metal hydroxide.27. The process of claim 26 , wherein said alkali metal hydroxide is potassium hydroxide.28. The process of claim 27 , wherein potassium hydroxide is present in a concentration of about 10 to about 50 wt. %.29. A method for preparing 1 claim 27 ,1 ...

METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS

Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CFCF═CH(1234yf). In certain preferred embodiments the processes comprise first exposing a compound of Formula (IA) 120.-. (canceled)21. A process for making a tetrafluoropropene , comprising: dehydrohalogenating 2-chloro-1 ,1 ,1 ,2-tetrafluoropropane (HCFC-244bb) in the presence of a caustic agent.22. The process of wherein the tetrafluoropropene is 2 claim 21 ,3 claim 21 ,3 claim 21 ,3-tetrafluoropropene.23. The process of wherein the caustic agent is at least one agent selected from the group consisting of KOH claim 21 , NaOH claim 21 , Ca(OH) claim 21 , and CaO.24. The process of wherein the caustic agent is KOH.25. The process of wherein the caustic agent is provided in a solution having a caustic agent strength of between about 2 wt % and about 100 wt. %.26. The process of wherein the caustic agent is provided in a solution having a caustic agent strength of between about 5 wt % and about 90 wt. %.26. The process of wherein the caustic agent is provided in a solution having a caustic agent strength of between about 10 wt % and about 80 wt. %.27. The process of wherein a mole ratio of the caustic agent:HCFC-244bb is from about 1:1 to about 2:1.28. The process of wherein a mole ratio of caustic agent:HCFC-244bb is from about 1.1:1 to about 1.5:1.27. The process of wherein a mole ratio of caustic agent:HCFC-244bb is from about 1.2:1 to about 1.4:1.28. The process of wherein the dehydrohalogenating step is conducted at a temperature from about 20° C. to about 100° C.29. The process of wherein the dehydrohalogenating step is conducted at a temperature from about 30° C. to about 90° C.30. The process of wherein the dehydrohalogenating step is conducted at a temperature from about 40° C. to about 80° C.31. The process of wherein a reaction pressure of the process ranges from atmospheric pressure claim 21 , super-atmospheric pressure and sub-atmospheric ...

Method for Production of 1-Chloro-3,3,3-Trifluoropropene

A production method of 1-chloro-3,3,3-trifluoropropene according to the present invention includes bringing a raw material composition containing 1,3,3,3-tetrafluoropropene and an acid composition containing hydrogen chloride into contact with each other in gas phase in the presence of a catalyst. This production method allows not only use of hydrogen chloride containing hydrogen fluoride, which has been generated during a preceding step (production of 1,1,1,3,3-pentafluoropropane as a raw material or analogues thereof), but also use of any of trans and cis isomers of the 1,1,1,3,3-pentafluoropropane for production of the 1-chloro-3,3,3-trifluoropropene. It is thus possible to efficiently produce the 1-chloro-3,3,3-trifluoropropene, which is known as an environment-adaptive chlorofluorocarbon. As the catalyst, preferred is an alumina catalyst treated by contact with hydrogen fluoride. 1. A production method of 1-chloro-3 ,3 ,3-trifluoropropene , comprising bringing a raw material composition containing 1 ,3 ,3 ,3-tetrafluoropropene and an acid composition containing hydrogen chloride into contact with each other in gas phase in the presence of a catalyst.2. The production method according to claim 1 , wherein the raw material composition further contains 1 claim 1 ,1 claim 1 ,1 claim 1 ,3 claim 1 ,3-pentafluoropropane.3. The production method according to claim 1 , wherein the 1 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoropropene is obtained by fluorination of 1 claim 1 ,1 claim 1 ,1 claim 1 ,3 claim 1 ,3-pentachloropropane.4. The production method according to claim 1 , wherein the catalyst is a catalyst having a bond of the formula: M-X where M is at least one kind of metal atom selected from the group consisting of aluminium (Al) claim 1 , titanium (Ti) claim 1 , iron (Fe) claim 1 , cobalt (Co) claim 1 , antimony (Sb) claim 1 , tin (Sn) claim 1 , tungsten (W) claim 1 , niobium (Nb) claim 1 , chromium (Cr) claim 1 , and zirconium (Zr); and X is at least one kind ...

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

The invention relates to a process for preparing a C3-6 (hydro)fluoroalkene comprising dehydrohalogenating a C3-6 hydro(halo)fluoroalkane in the presence of a zinc/chromia catalyst, wherein the C3-6 (hydro)fluoroalkene produced is isomerised in the presence of the zinc/chromia catalyst. 1. A process for preparing a C(hydro)fluoroalkene comprising dehydrohalogenating a Chydro(halo)fluoroalkane in the presence of a zinc/chromia catalyst , wherein the C(hydro)fluoroalkene produced is isomerised in the presence of the zinc/chromia catalyst.2. A process according to wherein the C(hydro)fluoroalkene exists in E and Z isomers claim 1 , and the ratio of E and Z isomers is changed in the presence of the zinc/chromia catalyst.3. A process according to wherein the presence of the zinc/chromia catalyst changes the ratio of E and Z isomers from that which is the kinematic determined mixture of isomers from the preparation of the C(hydro)fluoroalkene.4. A process according to wherein a desired isomer of the C(hydro)fluoroalkene is recovered in a subsequent step.5. A process according to carried out at a temperature of from −70 to 400° C. and a pressure of from 0 to 30 bara.6. A process according to for preparing a (hydro)fluoropropene comprising dehydrohalogenating a hydro(halo)fluoropropane.7. A process according to wherein the (hydro)fluoropropene produced is selected from tetrafluoropropenes and pentafluoropropenes.8. A process according for preparing 1 claim 7 ,2 claim 7 ,3 claim 7 ,3 claim 7 ,3-pentafluoropropene (CFCF═CHF).9. A process according to for preparing 1 claim 7 ,3 claim 7 ,3 claim 7 ,3-tetrafluoropropene (CFCH═CHF).10. A process according to for preparing 2 claim 7 ,3 claim 7 ,3 claim 7 ,3-tetrafluoropropene (CFCF═CH) and 1 claim 7 ,2 claim 7 ,3 claim 7 ,3 claim 7 ,3-pentafluoropropene (CFCF═CHF).11. A process according to for preparing 2 claim 7 ,3 claim 7 ,3 claim 7 ,3-tetrafluoropropene (CFCF═CH) and 1 claim 7 ,3 claim 7 ,3 claim 7 ,3-tetrafluoropropene (CFCH═ ...

PROCESS FOR THE MANUFACTURE OF 2,3,3,3-TETRAFLUOROPROPENE

A method for forming 2,3,3,3-tetrafluoropropene (HFO-1234yf) comprising providing a dehydrochlorination starting material having relatively low concentrations of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), especially and preferable less than about 8.0% when the dehydrochlorination reaction utilizes no substantial amount of catalyst or catalyst comprising austenitic nickel-based materials. 131.-. (canceled)32. A process for reducing the concentration of 2-chloro-3 ,3 ,3-trifluoropropene in a starting composition comprised of 2-chloro-1 ,1 ,1 ,2-tetrafluoropropane and 2-chloro-3 ,3 ,3-trifluoropropene which comprises conducting a process selected from(a) photochlorinating the starting composition to form 1,1,2-trichloro-3,3,3-trifluoropropane in the presence of at least one chlorination agent and separating the 2-chloro-1,1,1,2-tetrafluoropropane from the 1,1,2-trichloro-3,3,3-trifluoropropane;(b) passing the starting composition over a fixed bed of solid adsorbents selected from activated carbons and zeolites or molecular sieves, and collecting the 2-chloro-1,1,1,2-tetrafluoropropane from the fixed bed of solid adsorbents; and(c) mixing said starting composition with liquid hydrofluoric acid to form a mixture comprised of 1,1,1,2-tetrafluoropropane and 2-chloro-3,3,3-trifluoropropene and HF, said HF present in the mixture is less than about 10% by weight and feeding and distilling the resulting product in a reboiler and collecting the product substantially free of 2-chloro-3,3,3-trichloropropene and purer in 2-chloro-1,1,1,2-tetrafluoropropane than in said starting mixture.33. The process according to where the starting composition is photochlorinated.34. The process according to where photochlorinating comprises exposing the starting composition to radiation in the presence of said at least one chlorination agent.35. The process according to wherein the chlorination reaction is carried out in the vapor phase at a temperature ranging from about −20 C to about 200 ...

Method for Producing (E)-1-Chloro-3,3,3-Trifluoropropene

The present invention provides a process for purifying a (E)-1-chloro-3,3,3-trifluoropropene composition (OF-1233E composition) in which at hydrogen fluoride and 2-chloro-1,1,1,3,3-pentafluoropropane are contained by bringing the 1. A production process of (E)-1-chloro-3 ,3 ,3-trifluoropropene , comprising:providing a (E)-1-chloro-3,3,3-trifluoropropene composition, the (E)-1-chloro-3,3,3-trifluoropropene composition containing at least hydrogen fluoride and 2-chloro-1,1,1,3,3-pentafluoropropane; andbringing the (E)-1-chloro-3,3,3-trifluoropropene composition into contact with a weak base.2. The production process of (E)-1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene according to claim 1 , wherein the weak base has a pKa of 7 to 11.3. The production process of (E)-1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene according to claim 1 , wherein the weak base is selected from the group consisting of carbonates claim 1 , hydrocarbonates claim 1 , phosphates claim 1 , hydrogenphosphates claim 1 , dihydrogenphosphates and C-Ccarboxylates of alkali metals and C-Ctertiary amines.4. The production process of (E)-1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene according to claim 1 , wherein the weak base is selected from the group consisting of hydrocarbonate of sodium or potassium claim 1 , carbonate of sodium or potassium claim 1 , acetate of sodium or potassium and triethylamine.5. The production method of (E)-1-chloro-3 claim 1 ,3 claim 1 ,3-tifluoropropene according to claim 1 , further comprising: after the bringing claim 1 , distilling [[a]] the (E)-1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene composition.6. The production method of (E)-1-chloro-3 claim 1 ,3 claim 1 ,3-tifluoropropene according to claim 1 , wherein the amount of the hydrogen fluoride contained in the (E)-1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene composition before the bringing is 0.0001 to 10 parts by mass per 100 parts by mass of the (E)-1-chloro-3 claim 1 ,3 claim 1 ,3- ...

Process for Preparing (Z)-1,1,1,4,4,4-Hexafluoro-2-Butene

The present application is directed to processes and intermediates for preparing (Z)-1,1,1,4,4,4-hexafluoro-2-butene. The present application further provides compositions prepared according to one or more of the processes described herein and methods of using the compositions. 1. A process of preparing 2-chloro-1 ,1 ,1 ,4 ,4 ,4-hexafluoro-2-butene , comprising reacting hexachlorobutadiene with hydrofluoric acid in the presence of a transition metal catalyst , wherein greater than about 99 mole percent of the 2-chloro-1 ,1 ,1 ,4 ,4 ,4-hexafluoro-2-butene produced is (Z)-2-chloro-1 ,1 ,1 ,4 ,4 ,4-hexafluoro-2-butene.2. The process of claim 1 , wherein the transition metal catalyst is selected from a tantalum catalyst claim 1 , a niobium catalyst claim 1 , or a tantalum-niobium catalyst.3. The process of claim 1 , wherein the transition metal catalyst is tantalum (V) chloride.4. The process of claim 1 , wherein the transition metal catalyst is niobium (V) chloride or niobium (IV) chloride.5. The process of claim 1 , wherein the transition metal catalyst is a mixture of a tantalum catalyst and a niobium catalyst.6. The process of claim 1 , wherein a molar excess of hydrofluoric acid is used based on 1 molar equivalent of hexachlorobutadiene.7. The process of claim 1 , wherein the process is performed a temperature of from about 110° C. to about 135° C.8. The process of claim 1 , wherein the process comprises:i) adding the transition metal catalyst to the hydrofluoric acid to form a first mixture; andii) adding the hexachlorobutadiene to the first mixture to form a second mixture.9. The process of claim 8 , wherein the first mixture is heated to a temperature of from about 110° C. to about 140° C.10. The process of claim 9 , further comprising cooling the first mixture to a temperature of from about −10° C. to about 10° C. prior to performing step ii).11. The process of claim 10 , further comprising heating the second mixture to a temperature of from about 110° C. to ...

Process for Producing 2-Chloro-1,3,3,3-Tetrafluoropropene

Disclosed is a process for producing 2-chloro-1,3,3,3-tetrafluoropropene (1224), including a first step of separating 2,3-dichloro-1,1,1,3-tetrafluoropropane 234da) into erythro form and threo form, and a second step of bringing the separated erythro form or threo form in contact with a base to obtain 2-chloro-1,3,3,3-tetrafluoropropene (1224). The first step is a step of separating 234da by distillation to achieve a separation into a fraction containing mainly erythro form and a fraction containing mainly threo form. In the second step, 1224 cis form is obtained from the erythro form, and 1224 trans form is obtained from the threo form. By this process, it is possible to selectively and efficiently produce cis form or trans form of 2-chloro-1,3,3,3-tetrafluoropropene (1224). 1. A process for producing 2-chloro-1 ,3 ,3 ,3-tetrafluoropropene (1224) , comprising:a first step (separation step) that is a separation step for separating 2,3-dichloro-1,1,1,3-tetrafluoropropane (234da) and is a step (1a) for taking out a component (A) having a molar ratio of threo form to erythro form of 100:0 to 80:20 or a step (1b) for taking out a component (B) having a molar ratio of threo form to erythro form of 0:100 to 20:80; anda second step of bringing the component (A) or the component (B) into contact with a base.2. The production process of claim 1 , wherein the first step is a step (1a) of taking out a fraction (A) having a molar ratio of threo form to erythro form of 100:0 to 80:20 or a step (1b) of taking out a fraction (B) having a molar ratio of threo form to erythro form of 0:100 to 20:80.3. The production process of claim 1 , wherein the second step is a second step A of bringing component (A) having a molar ratio of threo form to erythro form of 100:0 to 80:20 into contact with the base claim 1 , thereby obtaining 2-chloro-1 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoropropene (1224) having a molar ratio of trans form to cis form of 100:0 to 80:20.4. The production ...

METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS

Disclosed is a process for producing fluorinated organic compounds, including hydrofluoropropenes, which preferably comprises converting at least one compound of Formula (I): 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 each X on one terminal carbon is H and wherein each X on the other terminal carbon is independently selected from F claim 1 , Cl claim 1 , I or Br.6. The method of wherein Z in said compound of Formula (II) is H.7. The method of wherein each X is F.8. The method of wherein said at least one compound of Formula (I) comprises at least pentahalogenated compound.9. The method of wherein said at least one compound of Formula (IA) comprises at least one trichlorinated claim 5 , difluorinated propane.10. The method of wherein said at least one compound of Formula (I) comprises 1 claim 1 ,1 claim 1 ,1-trichloro-2 claim 1 ,2-difluoropropane (HCFC-242bb).11. The method of wherein said at least one compound of Formula (I) comprises 1 claim 1 ,1 claim 1 ,1 claim 1 ,2 claim 1 ,2-pentafluoropropane (HFC-245cb).12. The method of wherein said at least one compound of Formula (I) is selected from the group consisting of HCFC-242bb claim 1 , HFC-245cb and combinations of these.14. The method of wherein said first compound of Formula (IA) comprises at least 1 claim 13 ,1 claim 13 ,1-trichloro-2 claim 13 ,2-difluoropropane (HCFC-242bb) and said second compound of Formula (IA) comprises at least 1 claim 13 ,1 claim 13 ,1 claim 13 ,2 claim 13 ,2-pentafluoropropane (HFC-245cb).15. The method of wherein said at least one compound in accordance with Formula (II) comprises HFO-1234yf.16. The method of wherein said exposing step comprises at least one gas phase catalytic reaction.17. The method of wherein said converting step comprises at least one gas phase catalytic reaction. ...

CARBON-BASED PALLADIUM CATALYST OBTAINED BY USING IONIC LIQUID, METHOD FOR PREPARING THE SAME AND HYDROGENATION OF HYDROFLUOROCARBON USING THE SAME

Provided is a palladium on carbon (Pd/C) catalyst obtained by using an ionic liquid, a method for preparing the same, and a method for hydrogenation of hydrofluorocarbon using the same. More particularly, palladium particles are supported on carbon particles by using an ionic liquid, and the resultant Pd/C catalyst is used for hydrogenation of hydrofluorocarbon. The catalyst includes palladium particles having a smaller particle size and a more uniform shape as compared to the existing Pd/C catalysts, and thus shows high catalytic activity. 1. A carbon-based palladium (Pd/C) catalyst for hydrogenation of hydrofluorocarbon , comprising palladium with a uniform shape and size obtained by using an imidazole-based ionic liquid.2. A carbon-based palladium (Pd/C) catalyst for hydrogenation of hydrofluorocarbon according to claim 1 , wherein the imidazole-based ionic liquid is at least one selected from the group consisting of 1-ethyl-3-methylimidazolium tetrafluoroborate claim 1 , 1-butyl-3-methylimidazolium tetrafluoroborate claim 1 , 1-hexyl-3-methylimidazolium tetrafluoroborate claim 1 , 1-octyl-3-methylimidazolium tetrafluoroborate claim 1 , 1-butyl-3-methylimidazolium hexafluorophosphate claim 1 , 1-hexyl-3-methylimidazolium hexafluorophosphate claim 1 , 1-octyl-1-3-methylimidazolium hexafluorophosphate claim 1 , 1-butyl-3-methylimidazolium trifluoromethanesulfonate and 1-hexyl-3-methylimidazolium trifluoromethanesulfonate.3. A carbon-based palladium (Pd/C) catalyst for hydrogenation of hydrofluorocarbon according to claim 1 , wherein palladium nanoparticles have an average particle diameter of 1-100 nm.4. A carbon-based palladium (Pd/C) catalyst for hydrogenation of hydrofluorocarbon according to claim 1 , wherein the content of palladium is 0.9-5 wt % of carbon.5. A carbon-based palladium (Pd/C) catalyst for hydrogenation of hydrofluorocarbon according to claim 1 , wherein the hydrogenation is carried out at a temperature of 80-200° C. under a pressure of 0.1-2 atm ...

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), ...

Method for Producing CIS-1,3,3,3-Tetrafluoropropene

A production method of cis-1,3,3,3-tetrafluoropropene according to the present invention includes the steps of: subjecting 1,1,1,3,3-pentafluoropropane to dehydrofluorination to form a reaction mixture (A) containing cis-1,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoropropene and unreacted 1,1,1,3,3-pentafluoropropane; distilling the reaction mixture (A) to separate the trans-1,3,3,3-tetrafluoropropene from the reaction mixture (A) and collect a reaction mixture (B) containing the cis-1,3,3,3-tetrafluoropropene and the 1,1,1,3,3-pentafluoropropane; and reacting the reaction mixture (B) with a base and thereby obtaining the cis-1,3,3,3-tetrafluoropropene from the reaction mixture (B). This production method enables efficient production of high-purity cis-1,3,3,3-tetrafluoropropene and thus has industrial advantages. 1. A method for production of cis-1 ,3 ,3 ,3-tetrafluoropropene , comprising:a first step of subjecting 1,1,1,3,3-pentafluoropropane to dehydrofluorination to form a reaction mixture containing cis-1,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoropropene and unreacted 1,1,1,3,3-pentafluoropropane;a second step of distilling the reaction mixture formed by the first step to separate the trans-1,3,3,3-tetrafluoropropene from the reaction mixture and collect a reaction mixture containing the cis-1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane; anda third step of reacting the reaction mixture collected by the second step and containing the cis-1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane with a base and thereby obtaining the cis-1,3,3,3-tetrafluoropropene from the reaction mixture.2. The method according to claim 1 , wherein claim 1 , in the first step claim 1 , the dehydrofluorination is performed in a gas phase in the presence of a catalyst.3. The method according to claim 2 , wherein the catalyst is a zirconium compound-carrying catalyst that carries a zirconium compound on a metal oxide or activated carbon.4. The method ...

PROCESS FOR THE PRODUCTION OF CHLORINATED PROPENES

Processes for the production of chlorinated propenes are provided. The present processes make use of a feedstock comprising 1,2,3-trichloropropane and chlorinates the 1,1,2,3-tetrachloropropane generated by the process prior to a dehydrochlorination step. Production of the less desirable pentachloropropane isomer, 1,1,2,3,3-pentachloropropane, is thus minimized. The present processes provide better reaction yield as compared to conventional processes that require dehydrochlorination of 1,1,2,3-tetrachloropropane prior to chlorinating the same. The present process can also generate anhydrous HCl as a byproduct that can be removed from the process and used as a feedstock for other processes, while limiting the production of waste water, thus providing further time and cost savings. 1. A process for the production of chlorinated propenes from a feedstream comprising 1 ,2 ,3-trichloropropane , wherein at least a portion of the 1 ,1 ,2 ,3-tetrachloropropane produced by a first chlorination step is subjected to a second chlorination step prior to a first dehydrochlorination step and wherein the second chlorination step is conducted in the presence of a free radical initiator comprising an azo-group and results in the production of a product stream comprising less than 8 molar % hexachloropropane isomers.2. The process of claim 1 , wherein the first chlorination step produces a mixture comprising tetrachloropropanes and pentachloropropanes.3. The process of claim 2 , wherein the mixture is separated to provide a stream comprising the 1 claim 2 ,1 claim 2 ,2 claim 2 ,3-tetrachloropropane.4. The process of claim 3 , wherein the 1 claim 3 ,1 claim 3 ,2 claim 3 ,3-tetrachloropropane is chlorinated in the second chlorination step to provide a mixture comprising 1 claim 3 ,1 claim 3 ,1 claim 3 ,2 claim 3 ,3-pentachloropropane and 1 claim 3 ,1 claim 3 ,2 claim 3 ,2 claim 3 ,3-pentachloropropane.5. The process of claim 1 , wherein the free radical initiator comprising an azo-group ...

METHOD FOR PREPARING 2,3,3,3-TETRAFLUOROPROPENE

A method for preparing 2,3,3,3-tetrafluoropropene, including: a) introducing hexafluoropropylene and hydrogen to a first reactor for reaction in the presence of a catalyst to obtain a first mixture; b) washing and drying the first mixture, and introducing the treated first mixture to a first distillation column to obtain 1,1,1,2,3,3-hexafluoropropane, 1,1,1,2,3-pentafluoropropene, and hexafluoropropylene; recycling the 1,1,1,2,3,3-hexafluoropropane to the first reactor, and introducing the 1,1,1,2,3-pentafluoropropene and the hexafluoropropylene to a second distillation column to yield hexafluoropropylene and 1,1,1,2,3-pentafluoropropene; and recycling the hexafluoropropylene to the first reactor; c) introducing the 1,1,1,2,3-pentafluoropropene and hydrogen to a second reactor in the presence of a catalyst to obtain a second mixture; and d) washing and drying the second mixture, and introducing the second mixture to a third distillation column to yield 1,1,1,2,3-pentafluoropropane; and recycling the 1,1,1,2,3-pentafluoropropane to the second reactor to yield 2,3,3,3-tetrafluoropropene. 1. A method for preparing 2 ,3 ,3 ,3-tetrafluoropropene , comprising:{'sup': '−1', 'a) introducing hexafluoropropylene and hydrogen to a first reactor to allow hexafluoropropylene to react with hydrogen in the presence of a catalyst to obtain a first mixture comprising 1,1,1,2,3-pentafluoropropene, 1,1,1,2,3,3-hexafluoropropane, hydrogen fluoride, and hexafluoropropylene, in which a molar ratio of hexafluoropropylene to hydrogen is between 1:0.95 and 1:0.99, a space velocity is between 200 and 1000 h, and a reaction temperature is between 50 and 400° C.;'}b) washing and drying the first mixture obtained from a), and introducing the treated first mixture to a first distillation column to obtain 1,1,1,2,3,3-hexafluoropropane in a bottom of the first distillation column and 1,1,1,2,3-pentafluoropropene and hexafluoropropylene at a top of the first distillation column; recycling the 1,1,1 ...

SYNTHESIS OF 3,3,3-TRIFLUOROPROPYNE

In accordance with the present invention, processes of synthesizing 3,3,3-trifluoropropyne from 1,3,3,3-tetrafluoropropene, 1-chloro-3,3,3-trifluoropropene, and/or 1,1,1,3,3-pentafluoropropane are provided. 1. A process of synthesizing 3 ,3 ,3-trifluoropropyne , the process comprising the steps of:providing a solution of 1-chloro-3,3,3-trifluoropropene in tetrahydrofuran; and,adding potassium tert-butoxide to the solution to yield the 3,3,3-trifluoropropyne.2. The process of claim 1 , wherein the solution of 1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene is at about 50-60° C. during the addition of potassium tert-butoxide to the solution.3. The process of claim 1 , wherein the 1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene is cis-1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene.4. The process of claim 2 , wherein the 1-chloro-3 claim 2 ,3 claim 2 ,3-trifluoropropene is cis-1-chloro-3 claim 2 ,3 claim 2 ,3-trifluoropropene.5. A process of synthesizing 3 claim 2 ,3 claim 2 ,3-trifluoropropyne claim 2 , the process comprising the steps of:providing a compound selected from the group consisting of 1,3,3,3-tetrafluoropropene, 1-chloro-3,3,3-trifluoropropene, and 1,1,1,3,3-pentafluoropropane;mixing the compound with a solvent to make a first mixture;adding sodium amide to the first mixture to make a second mixture;adding hydrochloric acid to the second mixture to yield the 3,3,3-trifluoropropyne.6. The process of claim 5 , wherein the compound is selected from the group consisting of 1 claim 5 ,3 claim 5 ,3 claim 5 ,3-tetrafluoropropene and 1-chloro-3 claim 5 ,3 claim 5 ,3-trifluoropropene.7. The process of claim 6 , wherein the major portion of the compound is in a cis form.8. The process of claim 6 , wherein the major portion of the compound is in a trans form.9. The process of claim 6 , wherein the molar ratio of sodium amide to the compound in the first mixture is 2 or greater.10. The process of claim 9 , wherein the molar ratio of sodium amide to the compound ...

Process For Producing Chlorinated Hydrocarbons

The preparation of chlorinated hydrocarbons, such as pentachloropropanes, such as 1,1,1,2,3-pentachloropropane, from tetrachloropropanes, such as 1,1,1,3-tetrachloropropane, in the presence of a polyvalent antimony compound that includes a pentavalent antimony compound, such as antimony pentachloride, is described. Also described are methods for preparing optionally chlorinated alkenes, such as, tetrachloropropenes, from chlorinated alkanes, such as pentachloropropanes, in the presence of ferric chloride and a polyvalent antimony compound that includes a pentavalent antimony compound. 1. A method of preparing 1 ,1 ,1 ,2 ,3-pentachloropropane comprising ,reacting 1,1,1,3-tetrachloropropane with a source of chlorine in the presence of a polyvalent antimony compound comprising a pentavalent antimony compound, thereby forming a product comprising 1,1,1,2,3-pentachloropropane.2. The method of claim 1 , wherein said source of chlorine is selected from chlorine (Cl) claim 1 , sulfuryl chloride claim 1 , and combinations thereof.4. The method of further comprising claim 3 , forming at least a portion of said pentavalent antimony compound from a precursor of said pentavalent antimony compound.5. The method of claim 4 , wherein said precursor of said pentavalent antimony compound comprises said trivalent antimony compound represented by Formula (II).6. The method of claim 5 , wherein said precursor of said pentavalent antimony compound is selected from the group consisting of antimony trichloride claim 5 , trialkyl antimony claim 5 , triaryl antimony claim 5 , and combinations of two or more thereof.7. The method of claim 6 , wherein said precursor of said pentavalent antimony compound is selected from the group consisting of antimony trichloride claim 6 , triphenyl antimony claim 6 , and combinations thereof.8. The method of claim 1 , wherein said polyvalent antimony compound is supported on a solid support.9. The method of claim 8 , wherein said solid support is selected ...

PRODUCTION METHOD FOR HEXAFLUORO-1,3-BUTADIENE

Provided is a method that is for producing hexafluoro-1,3-butadiene, discharges small amounts of industrial wastes, and is industrially applicable. The method for producing hexafluoro-1,3-butadiene includes a reaction step of reacting a halogenated butane represented by chemical formula, CFX-CFX-CFX-CFX(X, X, X, and Xare each independently a halogen atom other than a fluorine atom) in an organic solvent in the presence of zinc to eliminate the halogen atoms, X, X, X, and X, other than the fluorine atoms to generate hexafluoro-1,3-butadiene, giving a reaction product containing the hexafluoro-1,3-butadiene, and an aftertreatment step of separating the hexafluoro-1,3-butadiene from the reaction product produced in the reaction step, then adding water to a reaction product residue after the separating, and removing the organic solvent, giving an aqueous solution of zinc halide. 1. A method for producing hexafluoro-1 ,3-butadiene , the method comprising:{'sub': 2', '2, 'sup': 1', '2', '3', '4', '1', '2', '3', '4', '1', '2', '3', '4, 'b': 1', '3, 'a reaction step of reacting a halogenated butane represented by chemical formula, CFX-CFX-CFX-CFX(X, X, X, and Xare each independently a halogen atom other than a fluorine atom) in an organic solvent in the presence of zinc to eliminate the halogen atoms, X, X, X, and X, other than the fluorine atoms to generate hexafluoro-,-butadiene, giving a reaction product containing the hexafluoro-1,3-butadiene; and'}an aftertreatment step of separating the hexafluoro-1,3-butadiene from the reaction product produced in the reaction step, then adding water to a reaction product residue after the separating, and removing the organic solvent, giving an aqueous solution of zinc halide.2. The method for producing hexafluoro-1 claim 1 ,3-butadiene according to claim 1 , wherein the organic solvent is an alcohol.3. The method for producing hexafluoro-1 claim 2 ,3-butadiene according to claim 2 , wherein the alcohol is at least one of methanol ...

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.

METHOD FOR PRODUCING HYDROFLUOROOLEFIN

A method for producing a hydrofluoroolefin, which comprises reacting a chlorofluoroolefin represented by the following formula (1) with hydrogen in the presence of a platinum group metal catalyst supported on a carbon carrier, to obtain a hydrofluoroolefin represented by the following formula (2), 2. The method for producing a hydrofluoroolefin according to claim 1 , wherein the platinum group metal catalyst is composed of palladium claim 1 , a palladium alloy claim 1 , rhodium or platinum.3. The method for producing a hydrofluoroolefin according to claim 1 , wherein the platinum group metal catalyst is composed of an alloy of a platinum group element and gold.4. The method for producing a hydrofluoroolefin according to claim 3 , wherein the platinum group metal catalyst is composed of an alloy of palladium and gold.5. The method for producing a hydrofluoroolefin according to claim 1 , wherein the total acidic functional group amount in the carbon carrier is at most 30 μmol/g.6. The method for producing a hydrofluoroolefin according to claim 1 , wherein the total acidic functional group amount in the carbon carrier is at most 20 μmol/g.7. The method for producing a hydrofluoroolefin according to claim 1 , wherein the carbon carrier has a specific surface area of from 10 to 2 claim 1 ,000 m/g.8. The method for producing a hydrofluoroolefin according to claim 1 , wherein the amount of the platinum group metal catalyst supported is from 0.1 to 10 mass % based on the carbon carrier.9. The method for producing a hydrofluoroolefin according to claim 1 , wherein the chlorofluoroolefin and hydrogen are introduced to a catalyst layer of a tubular reactor packed with the carbon carrier supporting the catalyst claim 1 , and reacted in a gaseous phase.10. The method for producing a hydrofluoroolefin according to claim 9 , wherein the tubular reactor has a gas introduction part and a gas discharge part claim 9 , and the chlorofluoroolefin and hydrogen are introduced to the gas ...

PROCESS FOR PRODUCING HYDROFLUOROOLEFIN

To provide a method for producing a hydrofluoroolefin, wherein formation of an over-reduced product having hydrogen added to a material chlorofluoroolefin and an over-reduced product having not only chlorine atoms but also fluorine atoms in the chlorofluoroolefin replaced with hydrogen atoms, as by-products, is suppressed. 2. The method for producing a hydrofluoroolefin according to claim 1 , wherein the second element is at least one member selected from the group consisting of copper claim 1 , gold claim 1 , tin claim 1 , antimony and bismuth.3. The method for producing a hydrofluoroolefin according to claim 1 , wherein the content ratio of the platinum group element to the second element (platinum group element:second element) in the alloy is from 60:40 to 99:1 by mass ratio.4. The method for producing a hydrofluoroolefin according to claim 1 , wherein the catalyst is a catalyst composed of an alloy of palladium and at least one second element selected from the group consisting of copper claim 1 , gold claim 1 , tin claim 1 , antimony and bismuth.5. The method for producing a hydrofluoroolefin according to claim 1 , wherein the carrier is at least one member selected from the group consisting of activated carbon claim 1 , carbon black and carbon fibers.6. The method for producing a hydrofluoroolefin according to claim 1 , wherein the carrier is at least one member selected from the group consisting of alumina claim 1 , silica claim 1 , titanic and zirconia.7. The method for producing a hydrofluoroolefin according to claim 1 , wherein the amount of the catalyst supported is from 0.1 to 10 mass % based on the carrier.8. The method for producing a hydrofluoroolefin according to claim 1 , wherein the chlorofluoroolefin and hydrogen are introduced to a catalyst layer packed with the carrier supporting the catalyst claim 1 , and reacted in a gaseous phase.9. The method for producing a hydrofluoroolefin according to claim 8 , wherein the chlorofluoroolefin and hydrogen ...

PROCESS FOR THE MANUFACTURE OF FLUORINATED OLEFINS

In certain aspects, the present invention relates to methods for increasing the cost efficiency and safety of the hydrogenation of a fluorinated olefin by controlling the reaction conditions and parameters. In further aspects, the hydrogenation reaction is provided in a two stage reaction wherein the reactant amounts, temperature and other parameters are controlled such that the conversion percentage, selectivity, and reaction parameters are all within commercially acceptable levels. 1. A method for producing at least one fluorinated alkane comprising: {'br': None, 'sub': n', '3-n', 'a', 'b', 'z', 'm', '2-m, 'sup': 1', '2, '(CXY)(CRR)CX═CHX\u2003\u2003(I)'}, 'a. providing a starting material stream comprising at least one alkene according to Formula (I)'} {'br': None, 'sub': n', '3-n', 'a', 'b', 'z', 'm+1', '2-m, 'sup': 1', '2, '(CXY)(CRR)CHXCHX\u2003\u2003(II)'}, 'and at least one alkane according to Formula (II)'}where:each X is independently Cl, F, I or Br, provided that at least two Xs are F;each Y is independently H, Cl, F, I or Br;{'sup': '1', 'each Ris independently H, Cl, F, I, Br or unsubstituted or halogen substituted methyl or ethyl radical;'}{'sub': '2', 'each Ris independently H, Cl, F, I, Br or unsubstituted or halogen substituted methyl or ethyl radical;'}n is 1, 2 or 3;a and b are each 0, 1 or 2, provided that a+b=2;m is 0, 1 or 2; andz is 0, 1, 2 or 3,b. hydrogenating the starting material stream to produce an intermediate material stream by contacting said starting material stream with a reducing agent such that at least a portion of the alkene of Formula I is converted to the alkane of Formula II;c. separating a portion the intermediate product stream into at least a first intermediate product stream comprising the alkene of formula I and the alkane of formula II and a second intermediate product stream comprising the alkene of formula I and the alkane of formula II;d. recycling the first intermediate product stream to step b; ande. hydrogenating ...

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 ...

CONVERSION OF CHLOROFLUOROROPANES AND CHLOROFLUROPROPENES TO MORE DESIRABLE FLUOROPROPANES AND FLUOROROPENES

A process is provided comprising contacting and reacting the compound CFCFCHXCl, wherein X is H or Cl, or the compound CFCF═CXCl, wherein X is H or Cl, with hydrogen in the presence of a catalyst consisting essentially of Cu, Ru, Cu—Pd, Ni—Cu, and Ni—Pd, to obtain as a result thereof reaction product comprising hydrofluoropropenes or intermediates convertible to said hydrofluoropropenes, notably CFCF═CHand CFCH═CHF. 1. Process comprising contacting and reacting the compound CFCFCHXCl , wherein X is H or Cl , or the compound CFCF═CXCl , wherein X is H or Cl , with hydrogen in the presence of a catalyst consisting essentially of Cu , Ru , Cu—Pd , Ni—Cu , and Ni—Pd , to obtain as a result thereof reaction product comprising hydrofluoropropenes or intermediates convertible to said hydrofluoropropenes.2. Process of wherein in said compound CFCFCHXCl claim 1 , X is Cl claim 1 , and said reaction product comprises the compound CFCF═CH.3. Process of wherein said reaction product also comprises at least one of the compounds CFCF═CHCl and CFCFCHCl.4. Process of wherein said compound CFCF═CHCl is converted to the reaction product comprising the compound CFCF═CHby hydrogenation in the presence of a catalyst.5. Process of wherein said compound CFCFCHCl is converted to reaction product comprising the compound CFCF═CH claim 3 , first by dehydrofluorination of said compound CFCFCHCl to form the compound CFCF═CHCl and then hydrogenation of said compound CFCF═CHCl in the presence of catalyst.6. Process of wherein said compound CFCFCHCl is converted to reaction product comprising CFCF═CHby hydrogenation in the presence of catalyst.7. Process of wherein said compound CFCFCHXCl claim 2 , wherein X is Cl claim 2 , is accompanied by the compound CFCClCHFin said contacting and reacting with hydrogen in the presence of said catalyst claim 2 , whereby said reaction product comprise at least one of the compounds CFCCl═CHF claim 2 , CFCHClCHF claim 2 , CFCHCFH claim 2 , and CFCH═CHF8. Process ...

Method for Separating 1-Chloro-3,3,3-Trifluoropropene and Hydrogen Fluoride, and Method for Producing 1-Chloro-3,3,3-Trifluoropropene by Using Same

A separation method of 1-chloro-3,3,3-tetraluofopropene and hydrogen fluoride according to the present invention includes reducing the hydrogen chloride content of a mixture containing hydrogen chloride, 1-chloro-3,3,3-tetrafluoropropene and hydrogen chloride, thereby causing phase separation of the mixture so as to obtain an upper phase predominantly containing the hydrogen fluoride and a lower phase predominantly containing the 1-chloro-3,3,3-tetrafluoropropene. This separation method is industrially economically advantageous since the 1-chloro-3,3,3-tetraluofopropene and the hydrogen fluoride can be separated rapidly by simple operation. 1. A separation method of 1-chloro-3 ,3 ,3-tetrafluoropropene and hydrogen fluoride , comprising: reducing the hydrogen chloride content of a mixture containing hydrogen chloride , 1-chloro-3 ,3 ,3-tetrafluoropropene and hydrogen chloride , thereby causing phase separation of the mixture so as to obtain an upper phase predominantly containing the hydrogen fluoride and a lower phase predominantly containing the 1-chloro-3 ,3 ,3-tetrafluoropropene.2. The separation method according to claim 1 , wherein the phase separation is conducted at a temperature of −50° C. to 100° C.3. The separation method according to claim 1 , wherein the phase separation is conducted at a pressure of 0.01 MPa to 2.1 MPa.4. A method for production of 1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene claim 1 , comprising: bringing the lower phase obtained by the separation method according to into contact with water or an aqueous alkaline solution.5. The method for production of the 1-chloro-3 claim 4 ,3 claim 4 ,3-trifluoropropene according to claim 4 , further comprising providing the mixture by fluorinating 1 claim 4 ,1 claim 4 ,1 claim 4 ,3 claim 4 ,3-pentachloropropane or 1 claim 4 ,1 claim 4 ,3 claim 4 ,3-tetrachloro-2-propene with hydrogen fluoride such that the mixture contains the hydrogen fluoride as an unreacted reactant claim 4 , the 1-chloro-3 ...

PROCESS FOR PREPARATION OF HYDROFLUOROALKENES BY SELECTIVE CATALYTIC CONSECUTIVE HYDRODEFLUORINATION

The present application provides a hydrodefluorination process for the preparation of hydrofluoroalkenes by catalyzed substitution of one or more F atoms of a C2-C30 fluoroalkene, or a C2-C10 fluoroalkene, with one or more H atoms using a hydride source, such as a silane, and copper catalyst. During this process at least one C—F bond in the fluoroakene is converted to a C—H bond. The process is useful in the manufacture of hydrofluoroalkenes, such as hydrofluoroalkenes employed as, for example, refrigerants and blowers. Also provided are precatalyst compositions for performing the process, and formulations manufactured from hydrofluoroalkenes produced using the process. 1. A process for hydrodehalogenation of a fluoroalkene comprising treating a fluoroalkene with a hydride source and a catalyst of Formula VIII{'br': None, 'sub': x', 'y', 'z, 'LMH\u2003\u2003 VIII'}{'sub': 3', '3', '2', '2', '2, 'where each L is, independently, a monodentate, bidentate, tridentate, or tetradentate phosphorous, nitrogen, oxygen, sulfur or carbon-based ligand or combination thereof, of the general formula PR, NR, SR, OR, :CRwhere each R is independently; H, alkyl, aryl, silyl, alkoxy, amino, or halogen;'}M is a metal; andx is an integer from 1 to 4;y is 1;z is an integer from 1 to 4; andthe sum of z+x is less than or equal to 4.5. The process according to claim 1 , wherein the each L is independently P(OEt) claim 1 , PPh claim 1 , PCp claim 1 , Bipy claim 1 , Phen claim 1 , tmeda claim 1 , Triphos claim 1 , Diphos claim 1 , bis(diphenylphosphino)benzene claim 1 , IPr (1 claim 1 ,3-Bis(2 claim 1 ,6-diisopropylphenyl)-imidazol-2-ylidene) claim 1 , or SIMes (1 claim 1 ,3-Bis(2 claim 1 ,4 claim 1 ,6-trimethylphenyl)-2-imidazolidinylidene).6. The process according to claim 1 , wherein M is a Group 11 metal claim 1 , for example claim 1 , CuI or CuII.7. The process according to claim 1 , wherein the catalyst is (PPh)CuH or (PPh)CuH.8. The process according to claim 1 , wherein the hydride ...

PROCESS FOR THE SYNTHESIS OF TRIFLUOROETHYLENE

A catalytic process for the synthesis of trifluoroethylene from chlorotrifluoroethylene which comprises contacting chlorotrifluoroethylene with hydrogen in the presence of a catalyst consisting of palladium or platinum supported on extruded activated carbon. 1. A process for preparing trifluoroethylene , the process comprising contacting chlorotrifluoroethylene with hydrogen in the presence of a catalyst consisting of palladium or platinum supported on activated carbon , wherein the activated carbon is extruded activated carbon.2. The process according to wherein the catalyst consists of the palladium supported on the extruded activated carbon.3. The process according to claim 1 , wherein the process is carried out in a gas-phase by contacting a gaseous stream of the chlorotrifluoroethylene and the hydrogen with the catalyst.4. The process according to wherein the concentration of chlorotrifluoroethylene in the gaseous stream is comprised between 5 and 55% by volume.56-. (canceled)7. The process according to wherein the gaseous stream of chlorotrifluoroethylene and hydrogen further comprises an inert gas.8. The process according to wherein the concentration of chlorotrifluoroethylene in the gaseous stream is comprised between 10 and 50% by volume. This application claims priority to European application No. 10168130.2 filed on Jul. 1, 2010, the whole content of this application being incorporated herein by reference for all purposes.The present invention relates to a catalytic process for the synthesis of trifluoroethylene. In particular the invention relates to a process for the synthesis of trifluoroethylene by reaction of chlorotrifluoroethylene with hydrogen in the presence of a heterogeneous catalyst.The hydrodechlorination of chlorotrifluoroethylene to yield trifluoroethylene has been previously described.Mention can be made of U.S. Pat. No. 2,802,887 (ALLIED CHEMICAL) Aug. 13, 1957 which discloses the gas-phase reaction of chlorotrifluoroethylene with ...

GAS PHASE PROCESS FOR CHLOROTRIFLUOROETHYLENE

The present invention relates to a process for the preparation of haloethylenes, and preferably perhaloethylenes, by the gas-phase dechlorination of haloethanes in the presence of a catalyst and optionally in the presence of an alkene or an alkane. In particular aspects, the invention relates to a gas-phase process for preparing chlorotrifluoroethylene (CTFE). More particularly, the present invention relates to a gas-phase process for preparing CTFE from 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113) by dechlorination in the presence of an alkene or an alkane and a catalyst. 1. A process for the production of a haloethylene , comprising the gas-phase dechlorination of a haloethane in the presence of a catalyst and , optionally , an alkane or alkene , wherein the haloethane or perhaloethane comprises at least two chlorine atoms on adjacent carbon atoms , and wherein the catalyst is selected from (a) transition metal oxides such as iron (III) oxide , nickel (II) oxide , copper (II) oxide , and mixtures thereof , and (b) transition metal fluorides and chlorides such as copper (II) chloride or fluoride , and iron chloride or fluoride.2. A process for the production of a haloethylene having the formula:{'br': None, 'sub': m', 'n', 'x', 'y, 'CFCl═CFCl'} m is 0 to 2, n is 0 to 2, and m+n=2; and', 'x is 0 to 2, y is 0 to 2, and x+y=2;, 'wherein'} {'br': None, 'sub': m', 'n', 'x', 'y, 'CFCl═CFCl'}, 'comprising the gas-phase dechlorination of a haloethane having the formula m is 0 to 2, n is 0 to 2, and m+n=2; and', 'x is 0 to 2, y is 0 to 2, and x+y=2;, 'wherein'}in the presence of an alkane or alkene, and a catalyst selected from (a) transition metal oxides such as iron (III) oxide, nickel (II) oxide, copper (II) oxide, and mixtures thereof, and (b) transition metal fluorides and chlorides such as copper (II) chloride and copper (II) fluoride.3. The process according to claim 2 , wherein the catalyst comprises FeO claim 2 , NiO claim 2 , CuO claim 2 , CuF claim 2 , CuCl ...

DEHALOGENATION OF TRANS-1-CHLORO-3,3,3-TRIFLUOROPROPENE

The present invention is related to making hydrofluorocarbons (HCFCs), more specifically, 3,3,3-trifluoropropyne (TFP), from trans-1-chloro-3,3,3-trifluoropropene (trans-1233zd) by contacting the trans-1233zd with a base. Preferably, the base is potassium hydroxide or potassium tert-butoxide, which may or may not be dissolved in as solvent. 1. A method of making 3 ,3 ,3-trifluoropropyne from trans-1-chloro-3 ,3 ,3-trifluoropropene , the method comprising the steps of:providing a first composition comprising potassium hydroxide;contacting said first composition with a second composition comprising trans-1-chloro-3,3,3-trifluoropropene to make a third composition comprising 3,3,3-trifluoropropyne.2. The method of claim 1 , wherein the first composition further comprises calcium oxide.3. The method of claim 1 , wherein the first composition further comprises tert-butanol.4. The method of claim 1 , wherein the first composition is heated to reflux temperature prior to contacting the first composition with the second composition.5. The method of claim 4 , further comprising the step of obtaining a fourth composition comprising 3 claim 4 ,3 claim 4 ,3-trifluoropropyne from the third composition by maintaining the third composition at reflux temperature and collecting a fourth composition which has a higher concentration of 3 claim 4 ,3 claim 4 ,3-trifluoropropyne than said third composition.6. The method of claim 1 , wherein the molar ratio of potassium hydroxide contacted with trans-1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene is at least 2.7. The method of claim 1 , wherein the molar ratio of potassium hydroxide contacted with trans-1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene is between 3 and 5.8. A method of making 3 claim 1 ,3 claim 1 ,3-trifluoropropyne from trans-1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene claim 1 , the method comprising the steps of:providing a first composition comprising potassium hydroxide;contacting said first composition with ...

PROCESS TO MANUFACTURE 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE (HCFC-244bb)

The invention relates to a process to produce HCFC-244bb from HCFO-1233xf wherein, in one embodiment, co-feed species HFC-245cb is added to the reaction at a pressure of at least about 100 psig; and in another embodiment it is added to maintain a mole ratio of HFC-245cb to HCFO-1233xf of between about 0.005:1 to about 1:1. The HFC-245cb may be added as recycled by-product of the reaction and/or added as fresh feed. The HFC-245cb provides elevated pressures to the reaction thereby facilitating reactor operation, mixing and HCFC-244bb product removal. Other co-feed species are also disclosed. 1. A process to prepare 2-chloro-1 ,1 ,1 ,2-tetrafluoropropane (244bb) comprising:(a) contacting 2-chloro-3,3,3,-trifluoropropene (1233xf) with HF in a reaction zone under conditions effective to form 244bb; and{'sub': '6', '(b) adding a co-feed species selected from the group consisting of CFC-12 (dichlorodifluoromethane), CFC-13 (chlorotrifluoromethane), CFC-14 (tetrafluoromethane), HCFC-22 (chlorodifluoromethane), HCFC-23 (trifluoromethane), HFC-32 (difluoromethane), HCC-40 (chloromethane) HFC-41 (fluoromethane), CFC-115 (chloropentafluoroethane), FC-116 (hexafluoroethane), HCFC-124 (2-chloro-1,1,1,2-tetrafluoroethane), HFC-125 (pentafluoroethane), HFC-134a (1,1,1,2-tetrafluoroethane), HFC-143a (1,1,1-trifluoroethane), HFC-152a (1,1-difluoroethane), HFC-161 (fluoroethane), FC-218 (octafluoropropane), HFC-227ea (1,1,1,2,3,3,3-heptafluoroethane), SF(sulfur hexafluoride), and 1,1,1,2,2-pentafluoropropane (245cb) to the reaction zone to maintain a mole ratio of co-feed species to 1233xf of between about 0.005:1 to about 1:1.'}2. The process of wherein the co-feed species is 245cb.3. The process of wherein the 245cb:(i) is a product of step (a) and is added back, in whole or in part, to the reaction zone in step (b) as recycle, or(ii) is added to the reaction zone in step (b) as fresh 245cb, or(iii) is added to the reaction zone as a combination (i) and (ii).4. The process of ...

CATALYTIC PROCESS OF MAKING 1,3,3,3-TETRAFLUOROPROPENE

This disclosure relates to processes of making 1,3,3,3-tetrafluoropropene. The processes involve dehydrofluorinating 1,1,1,3,3-pentafluoropropane in vapor phase in the presence of a catalyst comprising a metal compound supported on alumina to produce a product mixture comprising 1,3,3,3-tetrafluoropropene, wherein said metal compound is selected from the group consisting of salts of sodium, potassium, zinc, magnesium, calcium, cobalt, copper, and chromium, and mixtures thereof. 1. A process for making 1 ,3 ,3 ,3-tetrafluoropropene , comprising dehydrofluorinating 1 ,1 ,1 ,3 ,3-pentafluoropropane in vapor phase in the presence of a catalyst comprising a metal compound supported on alumina to produce a product mixture comprising 1 ,3 ,3 ,3-tetrafluoropropene , wherein said metal compound is selected from the group consisting of salts of sodium , potassium , zinc , magnesium , calcium , cobalt , copper , and chromium , and mixtures thereof.2. The process of wherein said metal compound is selected from the group consisting of halides claim 1 , bicarbonates claim 1 , carbonates claim 1 , nitrates claim 1 , oxides claim 1 , and oxyfluorides of sodium claim 1 , potassium claim 1 , zinc claim 1 , magnesium claim 1 , calcium claim 1 , cobalt claim 1 , copper claim 1 , and chromium claim 1 , and mixtures thereof.3. The process of wherein said catalyst is pre-treated with a fluorinating agent.4. The process of wherein said fluorinating agent is HF.5. The process of claim 3 , or claim 3 , wherein said metal compound is selected from the group consisting of inorganic salts of potassium claim 3 , zinc claim 3 , and magnesium claim 3 , and mixtures thereof.6. The process of claim 5 , wherein said metal compound is ZnCl.7. The process of claim 6 , wherein the process is conducted at a temperature of from about 250° C. to about 350° C.8. The process of claim 5 , wherein said metal compound is KHCO.9. The process of claim 8 , wherein the process is conducted at a temperature of from ...

PRODUCTION METHOD FOR FLUORO-ETHANE AND PRODUCTION METHOD FOR FLUORO-OLEFIN

The production method according to the present disclosure comprises obtaining a product containing the fluoroethane from a fluoroethylene by a reaction in the presence of catalysts. Each catalyst is formed by supporting a noble metal on a carrier. A reactor for performing the reaction is filled with a catalyst having a noble metal concentration of C1 mass % based on the entire catalyst and a catalyst having a noble metal concentration of C2 mass % based on the entire catalyst to form an upstream portion and a downstream portion, respectively; and C1 Подробнее

PROCESS FOR THE PRODUCTION OF CHLORINATED PROPANES AND PROPENES

Processes for the production of chlorinated propanes and propenes are provided. The present processes comprise catalyzing at least one chlorination step with one or more regios elective catalysts that provide a regioselectivity to one chloropropane of at least 5:1 relative to other chloropropanes. 1. A process for the production of chlorinated propanes and/or propenes from a feedstream comprising 1 ,2-dichloropropane comprising catalyzing at least one chlorination step with one or more regioselective catalysts that provide a regioselectivity to one chloropropane of at least 5:1 relative to other chloropropanes.2. The process of claim 1 , wherein the regioselective catalyst comprises aluminum chloride.3. The process of claim 1 , wherein the regioselective catalyst comprises a nonmetallic iodide claim 1 , an inorganic iodine salt claim 1 , or less than 10 claim 1 ,000 ppm elemental iodine.4. The process of claim 3 , wherein the regioselective catalyst comprises a nonmetallic iodide comprising one or more iodobenzenes or halogenated iodobenzenes claim 3 , phenylchloroiodonium chloride claim 3 , diaryliodonium salts claim 3 , iodinated polymers claim 3 , iodoxy compounds claim 3 , iodoso compounds claim 3 , iodine mono- and trihalides claim 3 , iodine oxides claim 3 , and derivatives or combinations of any number of these.5. The process of claim 3 , wherein the regioselective catalyst comprises an inorganic iodine salt comprising sodium iodate claim 3 , sodium periodate claim 3 , or combinations of these.6. The process of claim 1 , wherein at least two chlorination steps are catalyzed with the regioselective catalyst.7. The process of claim 6 , wherein one chlorination step is catalyzed with aluminum chloride claim 6 , and another step is catalyzed with a nonmetallic iodide claim 6 , an inorganic iodine salt or less than 10 claim 6 ,000 ppm elemental iodine.8. The process of claim 7 , wherein both steps are conducted in the same reactor.9. The process of claim 1 , ...

CONVERSION OF CHLOROFLUOROROPANES AND CHLOROFLUROPROPENES TO MORE DESIRABLE FLUOROPROPANES AND FLUOROROPENES

A process is provided comprising contacting and reacting the compound CFCFCHXCl, wherein X is H or Cl, or the compound CFCF═CXCl, wherein X is H or Cl, with hydrogen in the presence of a catalyst consisting essentially of Cu, Ru, Cu—Pd, Ni—Cu, and Ni—Pd, to obtain as a result thereof reaction product comprising hydrofluoropropenes or intermediates convertible to said hydrofluoropropenes, notably CFCF═CHand CFCH═CHF. 1. A reaction product comprising HCFC-235da , HCFC-234db and at least one hydrofluoropropene.2. The reaction product of wherein the hydrofluoropropene comprises at least one of HFO-1234yf and HFO-1234ze.3. The reaction product of wherein the hydrofluoropropene comprises HFO-1234yf.4. The reaction product of wherein the hydrofluoropropene comprises HFO-1234ze.5. A composition comprising a reaction product and at least one intermediate convertible to the reaction product wherein the reaction product comprises at least one of HFO-1234yf and HFO-1234ze claim 2 , and the intermediate comprises at least one of HCFC-234db and HCFC-235da.6. The composition of wherein the reaction product comprises HFO-1234yf.7. The composition of wherein the reaction product comprises HFO-1234ze.8. A composition comprising HCFC-235da claim 5 , HCFC-234db claim 5 , HFO-1234yf and HFO-1234ze.9. A composition consisting essentially of HCFC-235da claim 5 , HCFC-234db claim 5 , and HFO-1234yf.10. A composition consisting essentially of HCFC-235da claim 5 , HCFC-234db and HFO-1234ze. The present invention relates to chemical processes for converting chlorofluoropropanes (HCFC) and chlorofluoropropenes (CFO) to more desirable fluoropropanes and fluoropropenes, especially propenes that are hydrofluoroolefins (HFO), i.e. free of Cl, and to intermediates from which these HFOs can be obtained.U.S. Pat. No. 8,399,722 discloses the hydrogenation of at least one of 1,1-dichloro-2,3,3,3-tetrafluoropropene (CFCF═Cl, 1214ya) and 1-chloro-2,3,3,3-tetrafluoropropene (CFCF═CHCl, 1224yd) in the ...

PROCESS FOR IMPROVING THE PRODUCTION OF A CHLORINATED ALKENE BY CAUSTIC DEYDROCHLORINATION OF A CHLORINATED ALKANE BY RECYCLING

The present invention provides processes for the preparation of a chlorinated alkene from a chlorinated alkane using a phase transfer catalyst and an aqueous base. 1. A process for producing at least one chlorinated alkene , the process comprising:a) preparing and reacting a mixture comprising at least one chlorinated alkane, an aqueous base, and a phase transfer catalyst, wherein the mixture comprises an aqueous phase and an organic phase comprising the catalyst;b) separating at least some of the organic phase from the aqueous phase, and optionally drying the organic phase;c) distilling at least part of the organic phase in at least one distillation column to produce two product effluent streams wherein product effluent stream(i) comprises the at least one chlorinated alkene and optionally unreacted chlorinated alkane and the product effluent stream (ii) comprises the heavy by-products, the phase transfer catalyst, optionally, unreacted chlorinated alkane; andd) recycling at least a portion of the product effluent stream (ii) to step a).2. The process of claim 1 , wherein product effluent stream (i) from step (c) is further distilled to produce two additional product effluent stream claim 1 , an overhead stream comprising the chlorinated alkene and a bottom stream comprising unreacted chlorinated alkane; and recycling a portion of the bottom stream to step a).3. The process of claim 1 , wherein the product effluent stream (ii) from step c) is further distilled to produce two additional product effluent streams claim 1 , an overhead stream comprising the unreacted chlorinated alkane and a bottom stream comprising the heavy by-products and the phase transfer catalyst; and recycling at least a portion of the overhead stream and a portion of the bottom stream to step a).4. The process of claim 1 , wherein less than 98% of the chlorinated alkane is converted into the chlorinated alkene.5. The process of wherein the chlorinated alkane is a chlorinated propane claim 1 , ...

Process for dehydrohalogenation of halogenated alkanes

A process for the manufacture of halogenated olefins in semi-batch mode by dehydrohalogenation of halogenated alkanes in the presence of an aqueous base such as KOH which simultaneously neutralizes the resulting hydrogen halide. During the process, aqueous base is continuously added to the haloalkane which results in better yields, lower by-product formation and safer/more controllable operation.

METHOD FOR PURIFYING FLUID THAT INCLUDES TRIFLUOROETHYLENE, AND METHOD FOR PRODUCING TRIFLUOROETHYLENE

To provide a method for purifying trifluoroethylene, by which from a fluid containing trifluoroethylene, a Calkane or alkene (excluding trifluoroethylene) in which at least one hydrogen atom may be substituted with a chlorine atom or a fluorine atom can be efficiently removed, and a method for producing trifluoroethylene by which trifluoroethylene can be efficiently produced. 1. A method for purifying a fluid containing trifluoroethylene , which comprises bringing a fluid containing trifluoroethylene and a Calkane or alkene (excluding trifluoroethylene) in which at least one hydrogen atom may be substituted with a chlorine atom or a fluorine atom , into contact with at least one type of synthetic zeolite selected from synthetic zeolites 3A , 4A and 5A to remove the Calkane or alkene.2. The method for purifying a fluid containing trifluoroethylene according to claim 1 , wherein the Calkane or alkene is at least one compound selected from the group consisting of chloromethane claim 1 , fluoromethane claim 1 , difluoromethane claim 1 , chlorofluoromethane claim 1 , trifluoromethane claim 1 , chlorodifluoromethane claim 1 , dichlorodifluoromethane claim 1 , 1 claim 1 ,1 claim 1 ,2-trichloro-1 claim 1 ,2 claim 1 ,2-trifluoroethane claim 1 , 1 claim 1 ,2-dichloro-1 claim 1 ,1 claim 1 ,2-trifluoroethane claim 1 , 1-chloro-1 claim 1 ,2 claim 1 ,2 claim 1 ,2-tetrafluoroethane claim 1 , 1-chloro-1 claim 1 ,1 claim 1 ,2 claim 1 ,2-tetrafluoroethane claim 1 , pentafluoroethane claim 1 , 1-chloro-1 claim 1 ,2 claim 1 ,2-trifluoroethane claim 1 , 1-chloro-1 claim 1 ,1 claim 1 ,2-trifluoroethane claim 1 , 1 claim 1 ,1 claim 1 ,2 claim 1 ,2-tetrafluoroethane claim 1 , 1 claim 1 ,1 claim 1 ,1 claim 1 ,2-tetrafluoroethane claim 1 , 2-chloro-1 claim 1 ,1-difluoroethane claim 1 , 1-chloro-1 claim 1 ,1-difluoroethane claim 1 , 1 claim 1 ,1 claim 1 ,2-trifluoroethane claim 1 , 1 claim 1 ,1 claim 1 ,1-trifluoroethane claim 1 , 1 claim 1 ,1-difluoroethane claim 1 , 1 claim 1 ,2- ...

METHOD FOR PRODUCING 1-CHLORO-2,3,3,3-TETRAFLUOROPROPENE

There is provided an efficient method for producing 1-chloro-2,3,3,3-tetorafluoropropene, with fewer by-products such as 2,3,3,3-tetrafluoropropene and 1,1,1,2-tetrafluoropropane which are over-reduced products, in a method of obtaining 1-chloro-2,3,3,3-tetorafluoropropene by reducing 1-1-dichloro-2,3,3,3-tetrafluoropropene. A method for producing 1-chloro-2,3,3,3-tetrafluoropropene, comprising: reacting 1,1-dichloro-2,3,3,3-tetrafluoropropene with hydrogen in a gas phase in the presence of a palladium catalyst-carrying carrier in which a palladium catalyst having a specific surface area of 40 m/g or less is carried on a carrier. 1. A method for producing 1-chloro-2 ,3 ,3 ,3-tetrafluoropropene , comprising:{'sup': '2', 'reacting 1,1-dichloro-2,3,3,3-tetrafluoropropene with hydrogen in a gas phase in the presence of a palladium catalyst-carrying carrier in which a palladium catalyst having a specific surface area of 40 m/g or less is carried on a carrier.'}2. The method according to claim 1 , wherein the specific surface area is 6 to 33 m/g.3. The method according to claim 1 , wherein the specific surface area is 6 to 20 m/g.4. The method according to claim 1 , wherein the palladium catalyst contains palladium claim 1 , and optionally a metal except palladium whose ratio to 100 parts by mass of palladium is 50 parts by mass or less.5. The method according to claim 1 , wherein a mass ratio of the palladium catalyst to the carrier is 0.1 to 10% by mass.6. The method according to claim 1 , wherein the palladium catalyst consists of palladium.7. The method according to claim 1 , wherein the carrier is an activated carbon.8. The method according to claim 7 , wherein the activated carbon is a palm shell activated carbon.9. The method according to claim 1 , wherein a ratio of the number of moles of a molecule of the hydrogen to the number of moles of the 1 claim 1 ,1-dichloro-2 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoropropene is 1.4 or less. This application is a ...

Production of hydrofluorocarbons

A process for the production of a hydrofluorocarbon which process comprises contacting a fluorocarbon containing at least one atom of chlorine, bromine or iodine with a complex metal hydride and optionally a metal hydride. The fluorocarbon containing at least one atom of chlorine, bromine or iodine may be an impurity in a mixture thereof with a hydrofluoroalkane.

Method for manufacturing 2,3,3,3-tetrafluoropropene

In the disclosed method for manufacturing 2,3,3,3-tetrafluoropropene (HFO-1234yf), generation of the over-reduced product HFC-254eb is decreased. In said method, a feedstock compound comprising either or both 1,1-dichloro-2,3,3,3-tetrafluoropropene and/or 1-chloro-2,3,3,3-tetrafluoropropene is reacted with hydrogen in the presence of a catalyst, with both reactants in gas phases. The disclosed method is characterized in that: the catalyst is a palladium catalyst supported by activated carbon; and the ratio between the amounts of the aforementioned feedstock compound and hydrogen introduced into a catalyst layer filled with the aforementioned palladium-supporting activated carbon, expressed in terms of the ratio between the number of moles of chlorine atoms in the feedstock compound and the number of moles of hydrogen (H 2 /Cl) is at most 0.7.

Verfahren zur herstellung von fluorierten c(pfeil abwaerts)4(pfeil abwaerts)- bis c(pfeil abwaerts)6(pfeil abwaerts)-kohlenwasserstoffen und neue cyclische fluorierte kohlenwasserstoffe, sowie die verwendung von fluorierten c(pfeil abwaerts)4(pfeil abwaerts)- bis c(pfeil abwaerts)6(pfeil abwaerts)-kohlenwasserstoffen als treibgas und arbeitsfluessigkeit fuer waermepumpensysteme

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.

Processo para a preparação de 1,1,1,3,3-pentafluorpropano

Catalytic hydrogenolysis

METHOD FOR PRODUCING DIFLUORMETHANE

Hydrogenation of multi-brominated alkanes.

Procedimento per la preparazione di prodotti olefinici coniugati fluorurati e prodotti ottenuti

히드로플루오로카본의 제조 방법

일차 알콜 및 이차 알콜을 함유하는 알콜 혼합물의 작용하에 알칼리 금속 수산화물과 식 I n R f I(식중, n은 0 또는 1이며, n이 0일 때, R f 는 C 2-12 선형 또는 분지형 폴리플루오로알킬렌기이고, n은 1일때, R f 는 C 2-12 선형 또는 분지형 폴리플루오로알킬기이다.)의 요오도플루오로카본을 반응시키는 것을 특징으로 하는 식 H n R f H(식중, n은 0 또는 1이며, n이 0일 때, R f 는 C 2-12 선형 또는 분지형 폴리플루오로알킬렌기이고, n은 1일 때, R f 는 C 2-12 선형 또는 분지형 폴리플루오로알킬기이다.)의 히드로플루오로카본의 제조방법.

一种多步法生产1,3-丙二醇的方法及系统

本发明公开了一种多步法生产1,3‑丙二醇的方法及系统。所述方法包括：将1,3‑二氯丙醇与脱水催化剂进行脱水反应，制得1,3‑二氯丙烯；使包含所述1,3‑二氯丙烯、第一水解剂和第一溶剂的第一混合反应体系进行第一水解反应，制得3‑氯‑2‑丙烯‑1‑醇；将所述3‑氯‑2‑丙烯‑1‑醇与加氢催化剂进行加氢反应，制得3‑氯丙醇；以及，使包含所述3‑氯丙醇、第二水解剂和第二溶剂的第二混合反应体系进行第二水解反应，制得1,3‑丙二醇。本发明提供的方法以1,3‑二氯丙醇为原料，通过脱水‑水解‑加氢‑水解四步法制得重要的化工原料1,3‑丙二醇，且该方法反应条件温和，成本低廉，具有环保与经济等优势。

히드로플루오로카본의 제조방법

일차 알콜 및 이차 알콜을 함유하는 알콜 혼합물의 작용하에 알칼리금속 수산화물과 식 I n R f I (식중, n은 0 또는 1이며, n이 0일때, R f 는 C 2-12 선형 또는 분지형 폴리플루오로알킬기이고, n은 1일때, R f 는 C 2-12 선형 또는 분지형 폴리플루오로알킬렌기이다.)의 요오도플루오로카본을 반응시키는 것을 특징으로 하는 식 H n R f H (식중, n은 0 또는 1이며, n이 0일때, R f 는 C 2-12 선형 또는 분지형 폴리플루오로알킬기이고, n은 1일때, R f 는 C 2-12 선형 또는 분지형 폴리플루오로알킬렌기이다.)의 히드로플루오로카본의 제조방법.

Method for preparing fluoro-olefins

FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to preparing fluoro-olefins that are used for preparing fluoro-containing polymers. Method is carried out by interaction of the parent fluorocarbon taken among the group consisting of (CF 3 ) 2 CFCH 2 F,(CF 3 ) 2 CHF,(CF 3 ) 2 CFOCF 2 CHF 2 and C 6 H 5 (CF 3 ) 2 in gaseous phase with defluorinating agent. Carbon, copper, iron, nickel or zinc is used as a defluorinating agent. Interaction is carried out at temperature 300-800 C for 1.5-5 h. Olefin fluorocarbon taken among the group: (CF 3 ) 2 C=CH 2 ,CF 3 CH=CF 2 ,CF 2 =C(CF 3 )OCF 2 CHF 2 and C 6 H 5 C(CF 3 )=CF is prepared as the end product. EFFECT: improved ecological and reduced economical indices of process. 2 cl, 12 ex 6590г сс ПЧ сэ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ "” 2210 559 ' 13) С2 5 МК’ С 07С 21/18, 17/23 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 99118168/04, 20.08.1999 (24) Дата начала действия патента: 20.08.1999 (46) Дата публикации: 20.08.2003 (56) Ссылки: Ц$ 4820884 А, 11.04.1989. ЕР 0434407 А, 26.06.1991. 4$ 3192214 А, 29.06.1965. $Ц 230131 А, 30.05.1975. (98) Адрес для переписки: 129010, Москва, ул. Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. Е.В.Томской, рег. № 106 (71) Заявитель: Институт элементоорганических соединений им.А.Н. Несмеянова РАН (КИ) (72) Изобретатель: Беленький Г.Г. (КО), ПЕТРОВ Вячеслав Александрович (0$), Постовой С.А. (КУ), РЕСНИК Пол Рафаэл (4$), Цейфман Ю.В. (КУ) (73) Патентообладатель: Институт элементоорганических соединений им.А.Н. Несмеянова РАН (КО) (54) СПОСОБ ПОЛУЧЕНИЯ ФТОРОЛЕФИНОВ (57) Изобретение относится к получению фторолефинов, которые используют для получения Ффторсодержащих полимеров. Способ осуществляют путем взаимодействия исходного Ффторуглерода, выбранного из группы, состоящей из (СЕ 3з)>СЕСНЪЕ, (СЕ з)2СНЕ, (СЕз)>СЕОСЕ5СНР.> и С вН5СЕ(СЕ3)2 В газовой фазе С дефторирующим реагентом. В ...

Procede de dechloration des chloromethanes superieurs.

L'invention concerne un procédé de déchloration des chlorométhanes supérieurs par l'hydrogène en présence d'un catalyseur à base d'un métal du groupe VIII ou du groupe IB déposé sur une alumine de surface spécifique inférieure à 10 m2/g.

Process for producing 2,3,3,3-tetrafluoropropene

The present invention provides a simple and efficient process for producing 2,3,3,3-tetrafluoropropene(HFC-1234yf), the process being useful for industrial production. More specifically, the present invention relates to: a process for producing 2,3,3,3-tetrafluoropropene, comprising the steps of: (I) reacting a compound expressed by Formula (1): CF3CF2CH2X (1) wherein X represents Cl, Br or I, with a base to produce a compound expressed by Formula (2): CF3CF=CHX (2) wherein X is the same as above; and (II) reducing the compound expressed by Formula (2) with hydrogen in the presence of a catalyst to produce 2,3,3,3-tetrafluoropropene.

Method for preparation of 1,1,1,2-tetrafluoroethane

Process for the manufacture of 1,1,1,2-tetrafluoroethane by the vapor phase hydrodehalogenation of 1,1,1,2-tetrafluorochloroethane in the presence of a catalyst consisting essentially of palladium on an aluminum fluoride or fluorinated alumina support.

Method for producing chlorotrifluoroethylene

Processes for selective dehydrohalogenation of halogenated alkanes

本发明涉及卤代烷烃的选择性脱卤化氢方法，更具体涉及由一种或多种具有氟取代基和非氟取代基的烷烃生产卤代烯烃、优选四氟丙烯的方法，优选具有高转化率和选择性。优选该方法包括使用催化反应，其中催化剂选自活性炭、卤化的单价和二价金属氧化物、单价和二价路易斯酸金属卤化物、零价金属及其组合。

METHODS FOR PRODUCING 1,1-Dichloro-2,3,3,3-tetrafluoropropene and 2,3,3,3-tetrafluoropropene

1. Способ получения 1,1-дихлор-2,3,3,3-тетрафторпропена, характеризуемый введением смеси изомеров дихлорпентафторпропана, которая содержит 1,1-дихлор-2,2,3,3,3-пентафторпропан, в контакт с водным раствором щелочи в присутствии катализатора фазового переноса, и тем самым селективно дегидрофторируя в смеси только 1,1-дихлор-2,2,3,3,3-пентафторпропан.2. Способ получения 1,1-дихлор-2,3,3,3-тетрафторпропена по п.1, где смесь изомеров дихлорпентафторпропана содержит в добавление к 1,1-дихлор-2,2,3,3,3-пентафторпропану, по меньшей мере, один изомер, выбранный из 1,3-дихлор-1,2,2,3,3-пентафторпропана, 2,2-дихлор-1,1,3,3,3-пентафторпропана, 1,2-дихлор-1,2,3,3,3-пентафторпропана и 2,3-дихлор-1,1,2,3,3-пентафторпропана.3. Способ получения 1,1-дихлор-2,3,3,3-тетрафторпропена по п.1, где содержание 1,1-дихлор-2,2,3,3,3-пентафторпропана в смеси изомеров дихлорпентафторпропана составляет самое большее 99,5 мол.%.4. Способ получения 1,1-дихлор-2,3,3,3-тетрафторпропена по п.1, где концентрация водного раствора щелочи составляет от 0,5 мас.% до 40 мол.%.5. Способ получения 1,1-дихлор-2,3,3,3-тетрафторпропена по п.1, где температура, при которой смесь изомеров дихлорпентафторпропана вводят в контакт с водным раствором щелочи в присутствии катализатора фазового переноса, составляет от 0 до 80°С.6. Способ получения 1,1-дихлор-2,3,3,3-тетрафторпропена по п.1, где температура, при которой смесь изомеров дихлорпентафторпропана вводят в контакт с водным раствором щелочи в присутствии катализатора фазового переноса, составляет от 0 до 25°С.7. Способ получения 2,3,3,3-тетрафторпропена, который включает в себя реакцию взаимодействия 1,1-дихлор-2,3,3,3-тетрафторпропена, полученного способом, как описано в п.1, с водородом в присут� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C07C 17/25 (13) 2011 130 904 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2011130904/04, 25.12.2009 (71) Заявитель(и): АСАХИ ГЛАСС КОМПАНИ, ЛИМИТЕД (JP) ...

Process for production of perfluoroalkadienes

하기 화학식 Ⅱ (화학식 Ⅱ) I-(CF 2 ) n -I (식중, n은 4∼20의 정수를 나타낸다.)로 표시되는 화합물에서 IF를 제거함으로써 하기 화학식 I (화학식 I) CF 2 = CF-(CF 2 ) n-4 -CF=CF 2 (식중, n은 상기와 동일.)로 표시되는 퍼플루오로알카디엔 화합물을 제조하는 방법에 있어서, 상기 IF 제거를 금속 아연 및 질소함유 유기 화합물의 존재하에서 행하는 것을 특징으로 하는 방법. 퍼플루오로알카디엔, 금속 아연, 질소함유 유기 화합물

Process for making tetrafluoropropene

本发明描述了一种制备CF 3 CH＝CHF(HFO-1234ze)的方法。该方法包括四氯化碳(CCl 4 )与1，2-二氯乙烯加成以形成CCl 3 CHClCHCl 2 。因此然后化合物CCl 3 CHClCHCl 2 可以用HF处理产生CF 3 CHClCHClF作为主要产物，或者它可以通过脱氯转化为CCl 2 ＝CHCHCl 2 (1230za)。CCl 2 ＝CHCHCl 2 可以用HF进行处理，从而使所得到的主要产物是CF 3 CHClCHClF。CF 3 CH＝CHCl作为副产物产生，但在用HF处理后，它生成化合物CF 3 CHClCHClF。通过CF 3 CH 2 CHClF的脱氯化氢或由CF 3 CHClCHClF的脱氯得到反式/顺式混合物形式的所需的化合物CF 3 CH＝CHF(HFO-1234ze)。

Method for producing 2,3,3,3-tetrafluoropropene

A kind of method that catalysis prepares 1,3 butadiene of hexafluoro

本发明涉及一种催化制备六氟‑1,3‑丁二烯的方法，将1,2‑二氯‑1,1,2‑三氟乙烷经锌粉还原脱氯，得到CF 2 ＝CHF气相中间产品，通入液溴中发生加成反应得到CBrF 2 CHBrF。CBrF 2 CHBrF在蒸发器中蒸发产生气体，通过装有第一催化剂的反应管脱去一分子HBr生成溴代三氟乙烯。溴代三氟乙烯在锌粉、溶剂和第二催化剂作用下经两步反应生成六氟‑1,3‑丁二烯。本发明具有工艺简单、收率高、原料易得、易于工业化、绿色环保的优点。

Method for hydrogenolysis of halocarbons

FIELD: cooling agents and solvents. SUBSTANCE: mixtures of halocarbons containing fluorine and chlorine and/or bromine are brought in contact with hydrogen in the presence of silicium and/or a metal selected from the group: aluminium, molybdenum, titanium, iron and copper (or alloys thereof). The reactor is either empty, or filled with particles or those formed of the above mentioned metals or of carbon with a low surface area. The process is carried out at the temperature 350-700 C and the pressure from 100 to 7000 kPa resulting in a mixture of products, in which distribution of the fluorine substituents at the carbon atoms mainly corresponds to that in the starting mixture of halocarbon compounds. EFFECT: new cooling agents obtained. 3 cl, 3 dwg, 1 tbl 16190с ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ” 2 067 971 ' 13) Сл С 07С 19/08, 17/00 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5011047/04, 31.01.1992 (30) Приоритет: 09.04.1991 1$ 682764 (46) Дата публикации: 20.10.1996 (56) Ссылки: Патент Великобритании М 1578933, кл. СОГС 19/08, 1980. (71) Заявитель: Е.И.Дюпон де Немур энд Компани (0$) (72) Изобретатель: Хенри Виллиам Маногуе[Ц$]|, В.Н.Малликарюна Рао[ЦА] (73) Патентообладатель: Е.И.Дюпон де Немур энд Компани (Ц$) (54) СПОСОБ ГИДРОГЕНОЛИЗА ГАЛОГЕНУГЛЕВОДОРОДОВ (57) Реферат: Использование: хладагенты и растворители. Сущность изобретения: смеси галогенуглеводородов, которые содержат фтор и хлор и/или бром, контактируют с водородом в присутствии кремния и/или металла, выбранного из алюминия, молибдена, титана, никеля, железа или кобальта (или их сплавов). Реактор является пустым или заполненным частицами или сформированными частицами из алюминия, молибдена, титана, никеля, железа или их сплавов или углерода с низкой площадью поверхности. Процесс ведут при температурах от 350-700 град.С и давлениях от 100 до 7000 кПа с получением смеси продуктов, которые в основном соответствуют определенному ...

Co-production preparation method of 2, 3-tetrafluoropropene and 1-chloro-3, 3-trifluoropropene

一种2,3,3,3‑四氟丙烯和1‑氯‑3,3,3‑三氟丙烯的联产制备方法，所述联产制备方法包括：A1.调聚步骤：一氟一氯甲烷和三氟乙烯在调聚催化剂作用下经加压调聚反应制备获得3‑氯‑1,1,1,2‑四氟丙烷；所述调聚催化剂为Lewis酸催化剂或Lewis酸催化剂和二氯甲烷的混合催化剂；A2.脱卤化氢步骤：3‑氯‑1,1,1,2‑四氟丙烷在复合型脱卤催化剂作用下，同时发生脱氯化氢反应和脱氟化氢反应获得2,3,3,3‑四氟丙烯和1‑氯‑3,3,3‑三氟丙烯，所述复合型脱卤催化剂由Al、Mg或Cr中的至少一种的氧化物或氟化物与活性炭粉末制备获得。本发明具有工艺简单、反应条件温和、目标产物总收率高等优点。

Method of producing fluorohalogenated ethers

FIELD: chemistry. SUBSTANCE: invention relates to a method of producing perfluorovinyl ethers of general formula: R f O-CF=CF 2 (IA), where R f denotes C 1 -C 3 , preferably C 1 -C 2 , an alkyl perfluorinated substitute, which can be used as monomers for producing different polymers - from fluorinated elastomers to fluorinated heat-sensitive semi-crystalline polymers. The method involves the following steps: 1a) using fluorine to fluorinate olefins of formula: CY"Y=CY'Cl (II) where Y, Y' and Y", identical or different from each other, denote H, Cl, Br, provided that Y, Y' and Y" do not simultaneously denote hydrogen; said olefins are selected from CCl 2 =CCl 2 or CHCl=CCl 2 , and obtaining fluorohalocarbons of formula: FCY''Y-CY'CIF (III), where Y, Y', Y" are as described above; 2a) dehalogenation or dehydrohalogenation of fluorohalocarbons of formula (III), where the halogen/halide ion is Cl, and obtaining fluoro-haloolefin of formula: CFCl=CFCl (IV), 3a) reaction between a hypofluorite of formula R f OF, where R f is as described above, and fluoro-haloolefin (IV), and obtaining fluorohalogenated ethers of formula: R f O-CFClCF 2 Cl (I) 4a) dehalogenation of compounds (I) and obtaining perfluorovinyl ethers of formula (IA). EFFECT: method enables to obtain the desired products with high output and selectivity. 16 cl, 9 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 433 992 (13) C2 (51) МПК C07C 43/17 C07C 41/24 C07C 41/06 (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2006145804/04, 21.12.2006 (24) Дата начала отсчета срока действия патента: 21.12.2006 (73) Патентообладатель(и): СОЛВЕЙ СОЛЕКСИС С.П.А. (IT) R U Приоритет(ы): (30) Конвенционный приоритет: 22.12.2005 IT MI2005A002456 (72) Автор(ы): ТОРТЕЛЛИ Вито (IT), КАЛИНИ Пьеранджело (IT), ЗОМПАТОРИ Альберто (IT), АНТЕНУЧЧИ Эмануэла (IT) (43) Дата публикации заявки ...

Method producing tetrafluoropropenes

FIELD: chemistry. ^ SUBSTANCE: method of producing tetrafluoropropenes involves reduction of a compound (I), selected from 1-chloro-2,2,3,3,3-pentafluoropropane (CF3CF2CH2Cl; HCFC-235cb); 2,2,3,3,3-pentafluoropropane (CF3CF2CH3; HFC-245cb) and 1-chloro-2,3,3,3-tetrafluoro-1-propene (CF3CF=CHCl). The compound (I) is obtained by reacting a compound of formula CF2=CY2, where Y independently denotes F or O, with chlorofluoromethane (CF2FCl). ^ EFFECT: high conversion and selectivity. ^ 10 cl, 3 tbl, 33 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 425 822 (13) C2 (51) МПК C07C C07C C07C C07C C07C C07C 17/23 17/00 17/25 17/278 21/18 19/10 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2008122214/04, 03.11.2006 (24) Дата начала отсчета срока действия патента: 03.11.2006 (73) Патентообладатель(и): ХОНЕЙВЕЛЛ ИНТЕРНЭШНЛ ИНК. (US) R U Приоритет(ы): (30) Конвенционный приоритет: 03.11.2005 US 60/733,378 (72) Автор(ы): МУХОПАДХИАЙ Судип (US), ДУБЕЙ Раджеш (US), СИНГХ Раджив Р. (US), ШИА Джордж (US) (43) Дата публикации заявки: 10.12.2009 Бюл. № 34 2 4 2 5 8 2 2 2 4 2 5 8 2 2 R U (56) Список документов, цитированных в отчете о поиске: HASZELDINE R.N. et al. Addition of free radicals to unsaturated systems. XIII. Direction of radical addition to chloro-1,1difluoroethylene. Journal of the chemical society. 1957, p.2193-2197. MONTANARI V. A novel synthesis of perhalogenated alkenes. Journal org. chem. Vol.57, 1992, p.5018-5019. DICKSON R.S. et al. Fluorocarbon-aluminium C 2 C 2 (45) Опубликовано: 10.08.2011 Бюл. № 22 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.06.2008 (86) Заявка PCT: US 2006/042936 (03.11.2006) (87) Публикация заявки РСТ: WO 2007/056128 (18.05.2007) Адрес для переписки: 119034, Москва, Пречистенский пер., 14, стр. 1, 4-й этаж, "Гоулингз Интернэшнл Инк.", Ю.В.Дементьевой (54) СПОСОБ ПОЛУЧЕНИЯ ...

Method of producing 2,3,3,3-tetrafluoropropylene

FIELD: chemistry.SUBSTANCE: invention relates to versions of a method of producing 2,3,3,3-tetrafluoropropylene (1234yf), which includes: (a) reaction of 1,1,2,3,3,3-hexafluoropropylene (1216) with hydrogen in the presence of a hydrogenation catalyst to form 1,1,2,3,3,3-hexafluoropropane (236ea); (b) dehydrofluorination of 236ea to form 1,2,3,3,3-pentafluoropropylene (1225ye); (c) reaction of 1225ye with hydrogen in the presence of a hydrogenation catalyst to form 1,2,3,3,3-pentafluoropropane (245eb); and (d) dehydrofluorination of 245eb to form 1234yf. One of the versions of the method comprises continuously carrying out steps (a), (b), (c) and (d) in the given order and the second version comprises semi-continuously carrying out said steps using one hydrogenation reactor and one dehydrofluorination reactor.EFFECT: use of the present method enables to avoid use of expensive reactants and formation of toxic by-products.25 cl, 3 ex, 3 tbl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 535 214 C2 (51) МПК C07C 17/23 (2006.01) C07C 21/18 (2006.01) C07C 17/354 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013108880/04, 15.05.2009 (24) Дата начала отсчета срока действия патента: 15.05.2009 2010151458 15.05.2008 (73) Патентообладатель(и): МЕКСИЧЕМ АМАНКО ХОЛДИНГ С.А. ДЕ С.В. (MX) R U Приоритет(ы): Номер и дата приоритета первоначальной заявки, из которой данная заявка выделена: (72) Автор(ы): СМИТ Джон Уильям (GB), МакГИНЕСС Клэр (GB), ШЭРРАТ Эндрю Пол (GB), ТЕЙЛОР Эндрю Марк (GB) (43) Дата публикации заявки: 10.09.2014 Бюл. № 25 2 5 3 5 2 1 4 R U M P; MYSOV E I: “REACTIONS OF FLUORO OLEFINS. ÖCOMMUNICATION 13. CATALYTIC HYDROGENATION OF PERFLUOROOLEFINS”,BULLETINOFTHE ACADEMY OF SCIENCES OF THE USSR, DIVISION OF CHEMICAL SCIENCES, 01.01.1960, PAGES 1312-1317. WO 2007117391 A1, 18.10.2007. RU 94046237 A1, 27.10.1996. RU 2006107535 A, 27.07.2006 Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ...

METHOD FOR PRODUCING SIMPLE FLUORHALOGENED ETHERS

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2006 145 804 (13) A (51) ÌÏÊ C07C 17/00 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2006145804/04, 21.12.2006 (71) Çà âèòåëü(è): ÑÎËÂÅÉ ÑÎËÅÊÑÈÑ Ñ.Ï.À. (IT) (30) Êîíâåíöèîííûé ïðèîðèòåò: 22.12.2005 IT MI2005A002456 (43) Äàòà ïóáëèêàöèè çà âêè: 27.06.2008 Áþë. ¹ 18 A 2 0 0 6 1 4 5 8 0 4 R U Ñòðàíèöà: 1 RU A (57) Ôîðìóëà èçîáðåòåíè 1. Ñïîñîá ïîëó÷åíè ïðîñòûõ ïåðôòîðâèíèëîâûõ ýôèðîâ, èìåþùèõ îáùóþ ôîðìóëó RfO-CF=CF2 (IA), ãäå Rf ïðåäñòàâë åò ñîáîé C1-C3, ïðåäïî÷òèòåëüíî C1-C2 àëêèëüíûé ïåðôòîðèðîâàííûé çàìåñòèòåëü; âêëþ÷àþùèé â ñåá ñëåäóþùèå ñòàäèè: 1a) ôòîðèðîâàíèå ñ ïîìîùüþ ôòîðà îëåôèíîâ, èìåþùèõ ôîðìóëû CY"Y=CY'Cl (II), ãäå Y, Y' è Y", îäèíàêîâûå èëè îòëè÷íûå äðóã îò äðóãà, ïðåäñòàâë þò ñîáîé H, Cl, Br, ïðè óñëîâèè, ÷òî Y, Y' è Y" íå âë þòñ îäíîâðåìåííî âîäîðîäîì; è ïîëó÷åíèå ôòîðãàëîãåíóãëåðîäîâ ôîðìóëû FCY"Y-CY'ClF (III), ãäå Y, Y' è Y" èìåþò óêàçàííûå âûøå çíà÷åíè ; 2a) äåãàëîãåíèðîâàíèå èëè äåãèäðîãàëîãåíèðîâàíèå ôòîðãàëîãåíóãëåðîäîâ ôîðìóëû (III), ãäå èîí ãàëîãåíà/ãàëîãåíèäà ïðåäñòàâë åò ñîáîé Cl èëè Br, è ïîëó÷åíèå ôòîðãàëîãåíîëåôèíîâ ôîðìóëû FCYI=CYIIF (IV), ãäå YI è YII, îäèíàêîâûå èëè îòëè÷íûå äðóã îò äðóãà, èìåþò çíà÷åíè H, Cl, Br, ïðè óñëîâèè, ÷òî êàê YI, òàê è YII íå ïðåäñòàâë þò ñîáîé H; 3a) âçàèìîäåéñòâèå ìåæäó ãèïîôòîðèòîì ôîðìóëû RfOF, ãäå Rf âë åòñ òàêèì, êàê âûøå, ôòîðãàëîãåíîëåôèíîì (IV), ïîëó÷åíèå ïðîñòûõ ôòîðãàëîãåíèðîâàííûõ ýôèðîâ ôîðìóëû RfO-CFYI-CF2YII (I), ãäå YI, YII, îäèíàêîâûå èëè îòëè÷íûå äðóã îò äðóãà, ïðåäñòàâë þò ñîáîé Cl, Br, H, ïðè óñëîâèè, ÷òî YI è YII íå ìîãóò áûòü îäíîâðåìåííî ðàâíû H; 4a) äåãàëîãåíèðîâàíèå èëè äåãèäðîãàëîãåíèðîâàíèå ñîåäèíåíèé (I) è ïîëó÷åíèå ïðîñòûõ ïåðôòîðâèíèëîâûõ ýôèðîâ ôîðìóëû (IA). 2. Ñïîñîá ïî ï.1, â êîòîðîì, êîãäà íà ñòàäèè 1a) ôòîðãàëîãåíóãëåðîä (III) ïðåäñòàâë åò ñîáîé ñèììåòðè÷íîå îðãàíè÷åñêîå ñîåäèíåíèå ñ Y=Cl è Y'=Y", ïðèìåñü 2 0 0 6 1 4 5 8 0 4 (54) ÑÏÎÑÎÁ ÏÎËÓ×ÅÍÈß ...

Process for producing 2,3,3,3-tetrafluoropropene

本发明提供一种能够对应工业规模、简便且有效的2，3，3，3-四氟丙烯(HFC-1234yf)的制造方法。该2，3，3，3-四氟丙烯(CF 3 CF＝CH 2 )的制造方法的特征在于，包括：(I)使碱与下述通式(1)所示的化合物反应，制造下述通式(2)所示的化合物的工序；和(II)在催化剂的存在下，利用氢将通式(2)所示的化合物还原，制造2，3，3，3-四氟丙烯的工序。CF 3 CF 2 CH 2 X (1)(式中，X表示Cl、Br或I。)CF 3 CF＝CHX (2)(式中，X同上。)

Processes for selective dehydrohalogenation of halogenated alkanes

불소 치환체 및 비-불소 치환체를 모두 갖는 하나 이상의 알칸으로부터 바람직하게 고도의 전환율 및 선택성으로 할로겐화 올레핀, 바람직하게 테트라불소화 프로펜(들)을 생성하는 방법이 개시된다. 바람직하게 상기 방법은 촉매 반응의 사용을 포함하며, 여기서 상기 촉매는 활성 탄소, 할로겐화 단- 및 이가 금속 산화물, 단- 및 이가 루이스산 금속 할라이드, 0가 금속,및 이들의 조합으로 구성되는 그룹으로부터 선택된다. Disclosed is a process for producing halogenated olefins, preferably tetrafluorinated propene (s), from one or more alkanes having both fluorine substituents and non-fluorine substituents, preferably at a high degree of conversion and selectivity. Preferably, the method comprises the use of a catalytic reaction wherein the catalyst is selected from the group consisting of activated carbon, halogenated mono- and bivalent metal oxides, mono- and bivalent Lewis acid metal halides, zero valent metals, and combinations thereof Is selected.

Process for the selective hydrogenolysis of perhalogeno-ethanes

내용 없음. No content.

Use of copper-nickel catalyst for dehalogenation of chlorofluorocompounds.

La descripción describe un proceso para la deshalogenación de clorofluorocompuestos. El proceso comprende poner en contacto un clorofluorocompuesto saturado con hidrógeno en presencia de un catalizador a una temperatura suficiente para retirar los sustituyentes de cloro y/o flúor para producir una olefina terminal que contiene flúor.

Chloro aromatic compound (R) using copper as catalyst1-Xm) Dechlorination method of

本发明提供一种以铜为催化剂的氯代芳香化合物(R 1 ‑X m )的脱氯方法，包括：以R 1 ‑X m 为底物，加入R 2 (OH) n 、pH值大于7的碱性物质以及铜催化剂以形成混合物，其中R 1 为经取代或未经取代的芳香基，X为氯离子，且m为正整数；R 2 为甲基，且n为1；搅拌所述混合物；以及加热所述混合物进行加氢反应，制得R 1 ‑X m’ ，其中m’小于m，且m’为整数。

Continuous preparation method of cis-hexafluoro-2-butene

本发明涉及含氟化合物技术领域，具体涉及一种顺式六氟‑2‑丁烯的连续制备方法。所述的顺式六氟‑2‑丁烯的连续制备方法，采用填充钌碳催化剂的一级固定床反应器和填充碳基金属催化剂的二级固定床反应器串联进行加氢反应，以三氯三氟乙烷为原料，先经过一级固定床反应器加氢反应得到1,1,1,1,4,4,4‑六氟‑2,2‑二氯丁烯，再经过二级固定床反应器加氢反应得到顺式六氟‑2‑丁烯。本发明采用两段催化工艺，通过反应器分级使用不同催化剂及控温条件，得到高收率的顺式六氟‑2‑丁烯产品，避免了高毒性中间产物的收集，单体选择性高，副产物少，毒性低，易分离，实时反应物料少，安全系数高。

Hydrogenation of chlorotrifluoroethylene

Manufacture of perfluoropropene

Process for the preparation of 1,2-difluoro-ethylene and 1-chloro-1,2-difluoro-ethylene

Process for the preparation of 1,2-difluoro-ethylene and 1-chloro-1,2-difluoroethylene by catalytic hydrogenation of 1,2-dichloro-difluoro-ethylene.

Process for obtaining catalytic compositions and process for hydrogenation of chlorofluoroalkenes by means of these compositions

The invention relates to catalytic compositions for the hydrogenation of chlorofluoroalkenes to fluoroalkenes, comprising a porous carrier impregnated with a metal of group VIII of the Periodic Table of the elements and with one or more compounds chosen from the salts of an alkali metal or alkaline-earth metal. The invention also relates to a process for obtaining these catalytic compositions and a process of hydrogenation by means of these catalytic compositions.

Process for the production of trifluoroethylene

A process for the production of trifluoroethylene (i.e., CF 2 =CHF or HFC-1123) is disclosed. The process involves contacting (in the vapor phase) at least one halogenated ethane of the formula CF 3 CClFX (where X is H, Cl or F) with hydrogen in the presence of a catalyst including at least one component selected from elemental metals, metal oxides, metal halides and metal oxyhalides. The metal of the component is ruthenium, copper, nickel, and/or chromium and the halogen of the halides and the oxyhalides is fluorine and/or chlorine.

Dehalogenation of fluorohalocarbons

Patent JPS462324B1

Method for producing fluoroalkyl vinyl compound

Production of saturated halohydrocarbons

A process is disclosed for producing saturated halohydrocarbons containing fluorine which comprises the step of reacting certain saturated or olefinic compounds at an elevated temperature with hydrogen in the presence of at least one material selected from the group consisting of iodine and hydrogen iodide, or with hydrogen iodide. Also disclosed is a process for producing certain chloromethanes which comprises the step of reacting CCl 4 at an elevated temperature with hydrogen in the presence of iodine and/or HI, or with hydrogen iodide; and a process for producing CF 3 CCl═CHCF 3 which comprises the step of reacting CF 3 CCl═CClCF 3 at an elevated temperature with hydrogen in the presence of iodine and/or HI, or with hydrogen iodide.

MANUFACTURE OF FLUOROETHYLENES AND CHLOROFLUOROETHYLENES.

Process for the preparation of hexafluoro-2-butyne

Process for the preparation of hexafluoro-2-butyne

Disclosed is a process for making hexafluoro-2-butyne comprising the steps of: (a) providing a composition comprising CF 3 CX═CXCF 3 , where X=halogen; and (b) treating CF 3 CX═CXCF 3 with a dehalogenation catalyst in the presence of a halogen acceptor compound Y, where Y is not hydrogen. The halogen acceptor compound Y is a material capable of being halogenated, preferably a compound having a multiple bond, such as an alkyne, alkene, allene, or carbon monoxide. Another suitable material capable of being halogenated is a cyclopropane. A catalyst effectively transfers halogen from CF 3 CX═CXCF 3 to the halogen acceptor compound. Since Y is not hydrogen, the formation of CF 3 CX═CHCF 3 is greatly reduced or eliminated.

Process for producing 2,3,3,3-tetrafluoropropene

A process is disclosed for making CF 3 CF═CH 2 The process involves (i) contacting CHCl 2 CF 2 CF 3 in a reaction zone in the presence of a catalytically effective amount of a dehydrofluorination catalyst to produce CCl═CFCF 3 ; (ii) contacting CCl 2 ═CFCF 3 with H 2 formed in (i) in a reaction zone in the presence of a catalyst comprising a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina fluorided alumina, aluminum fluoride and mixtures thereof, to produce a product mixture comprising CF 3 CF═CH 2 , wherein the mole ratio of H 2 to CCl 2 50 CFCF 3 fed to the reaction zone is between about 1:1 and about 4:1 and (iii) recovering CF 3 CF═CH 2 from the product mixture formed in (ii).

Processes for producing 2,3,3,3-tetrafluoropropene and/or 1,2,3,3-tetrafluoropropene

A process is disclosed for making CF 3 CF═CH 2 or mixtures thereof with CHF 2 CF═CHF. This process involves (a) reacting CHCl 2 CF 2 CF 3 , and optionally CHClFCF 2 CClF 2 , with H 2 in the presence of a catalytically effective amount of a hydrogenation catalyst to form CH 3 CF 2 CF 3 and, when CHClFCF 2 CClF 2 is present, CH 2 FCF 2 CHF 2 ; (b) dehydrofluorinating CH 3 CF 2 CF 3 , and optionally any CH 2 FCF 2 CHF 2 , from (a) to form a product mixture including CF 3 CF═CH 2 and, if CH 2 FCF 2 CHF 2 is present, CHF 2 CF═CHF; and optionally (c) recovering CF 3 CF═CH 2 , or a mixture thereof with CHF 2 CF═CHF from the product mixture formed in (b) and/or (d) separating at least a portion of any CHF 2 CF═CHF in the product mixture formed in (b) from the CF 3 CF═CH 2 in the product mixture formed in (b).

Process for producing 1,2,3,3,3-pentafluoropropene and related azeotropic compositions

A process for making CHF═CFCF 3 is disclosed. The process involves (a) reacting CCl 2 FCF 2 CF 3 with H 2 in the presence of a catalytically effective amount of hydrogenation catalyst to form CH 2 FCF 2 CF 3 ; and (b) dehydrofluorinating CH 2 FCF 2 CF 3 from (a) to form CHF═CFCF 3 . Also disclosed are compositions including CCl 3 CF 2 CF 3 and HF, wherein the HF is present in an effective amount to form an azeotropic combination with the CCl 3 CF 2 CF 3 ; and compositions including CCl 2 FCF 2 CF 3 and HF, wherein the HF is present in an effective amount to form an azeotropic combination with the CCl 2 FCF 2 CF 3 .

The hydrogenolysis of halocarbon

本发明涉及，在碳化硅和/或选自铝、钼、钛、镍、 铁或钴(或其合金)的金属的存在下，在350℃至 700℃的温度和0至1000psig的压力下，含氯或溴的 卤化物，如CCl 2 F 2 、CF 3 CFHCl或CF 3 CFCl 2 与氢接 触，以得到其中在起始原料中的至少一个氯或溴已被 氢取代的产物。

Method for producing chlorinated propane and propene

Prescription of chlorotrifluoroethylene and trifluoroethylene

Use of copper-nickel catalyst for dehalogenation of chlorofluorocompounds

본 개시내용은 클로로플루오로화합물의 탈할로겐화 방법을 기재한다. 상기 방법은 포화된 클로로플루오로화합물을, 염소 및/또는 불소 치환기를 제거하기에 충분한 온도에서 촉매의 존재하에 수소와 접촉시켜, 불소 함유 말단 올레핀을 생성하는 것을 포함한다. The present disclosure describes a process for dehalogenating a chlorofluoro compound. The process comprises contacting the saturated chlorofluoro compound with hydrogen in the presence of a catalyst at a temperature sufficient to remove the chlorine and / or fluorine substituent to produce a fluorine-containing terminal olefin.

Producing hydrofluoro compounds by hydrogenolysis of iodides

A process is disclosed for producing RCFZH by reaction of an iodide compound of the formula R′CFZI with hydrogen at an elevated temperature, wherein R is SF 5 , CF 2 SF 5 or R f CF 2 Y, R′ is SF 5 , CF 2 SF 5 or R f CF 2 X, R f is a perfluoroalkylene group containing from 1 to about 12 carbon atoms and optionally containing one or more ether oxygen atoms, Z is selected from F, CF 3 and CF 2 CF 3 , Y is selected from H, F and SF 5 , and X is selected from H, F, SF 5 , and I, provided that when Y is F, X is F, when Y is SF 5 , X is SF 5 , and when Y is H, X is H or I.

Synthesis of hydrogen perfluoroalkane

Fluoroform production

Processes for selective dehydrohalogenation of halogenated alkanes

불소 치환체 및 비-불소 치환체를 모두 갖는 하나 이상의 알칸으로부터 바람직하게 고도의 전환율 및 선택성으로 할로겐화 올레핀, 바람직하게 테트라불소화 프로펜(들)을 생성하는 방법이 개시된다. 바람직하게 상기 방법은 촉매 반응의 사용을 포함하며, 여기서 상기 촉매는 활성 탄소, 할로겐화 단- 및 이가 금속 산화물, 단- 및 이가 루이스산 금속 할라이드, 0가 금속,및 이들의 조합으로 구성되는 그룹으로부터 선택된다. Disclosed is a process for producing halogenated olefins, preferably tetrafluorinated propene (s), from one or more alkanes having both fluorine substituents and non-fluorine substituents, preferably at a high degree of conversion and selectivity. Preferably, the method comprises the use of a catalytic reaction wherein the catalyst is selected from the group consisting of activated carbon, halogenated mono- and bivalent metal oxides, mono- and bivalent Lewis acid metal halides, zero valent metals, and combinations thereof Is selected. 할로겐, 올레핀, 디하이드로할로겐, 촉매, 프로펜 Halogen, olefin, dihydrohalogen, catalyst, propene

Patent JPH0433773B2