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JP7298836B2 |
An object of the present invention is to provide a novel method for producing a fluorine-containing methylene compound.The above object can be achieved by a method for producing a compound represented by formula (1):wherein R1 represents...
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JP2023087000A |
To solve the following problem: there is a need to conduct dehydrohalogenation reactions in the absence of phase transfer catalysts.The present specification relates to a dehydrohalogenation process, comprising contacting a halofluoroalk...
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JP7295194B2 |
A method of producing a fluoropropene of formula CF3CH=CHF, comprising contacting a mixture of 1,1,1,3,3-pentafluoropropane and Z-1,3,3,3-tetrafluoropropene in the gas phase with a catalyst comprising at least one catalyst selected from ...
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JP7290962B2 |
To provide a perfluoroalkane compound having acetylene bonds at both ends, and an efficient and inexpensive production method of the compound.The invention provides a fluorine-containing alkyne compound represented by the specified gener...
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JP7287965B2 |
The present invention pertains to a novel process of manufacturing the compound 2,3,3,3-tetrafluoropropene (1234yf). The compound 1234yf is the newest refrigerant with zero OPD (Ozone Depleting Potential) and zero GWP (Global Warming Pot...
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JP2023078114A |
To provide a method capable of industrially manufacturing in a short time and efficiently a conjugated diene compound.A method of manufacturing a conjugated diene compound comprises obtaining a conjugated diene compound represented by ge...
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JP7287391B2 |
The present invention provides a production method for efficiently obtaining a fluorine-containing propene having a -CF= structure with high yield with use of a fluorine-containing propane that has a -CF2- structure in each molecule as a...
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JP7276672B2 |
The invention concerns a method for purifying and drying a hydrofluoroolefin stream comprising a hydrofluoroolefin, water and impurities composed of halogenated carbon compounds, characterised in that said stream is brought into contact ...
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JP7274520B2 |
A dehydrohalogenation product includes a hydrochlorofluorocarbon mixture of a fluoroolefin of formula RCX=CZQ and a halofluoroalkane of formula RCXYCZQT. R is a perfluorinated alkyl group and X, Z, and Q are independently H or halogen. O...
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JP7270609B2 |
Disclosed herein are methods of producing E-CF3CH═CHCF3 in a liquid phase. Also disclosed are methods of preparing CF3CH2CHClCF3 and CF3CHClCH2CCl3.
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JP2023060097A |
To provide a novel method capable of efficiently producing 1,1,2-trichloro-2-fluoroethene (TCFE) and to provide a novel application of TCFE.There are provided: a method for producing 1,1,2-trichloro-2-fluoroethene (TCFE) which comprises ...
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JP7264869B2 |
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 here...
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JP7263489B2 |
Azeotropic or azeotrope-like mixtures of 1,3-dichloro-3,3-difluoroprop-1-ene (HCFO-1232zd) and hydrogen fluoride (HF). Such compositions are useful as a feed stock or intermediate in the production of 1,1,1,3,3-pentafluoropropane (HFC-24...
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JP2023516911A |
A mechanically stirred bed reactor incorporating a screen is described. A method of processing perfluoropolymers to form perfluorinated olefin monomers using such reactors is also described. The present reactor and method can be used to ...
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JP2023056213A |
To prevent sedimentation of polymers in piping and a reactor downstream of an evaporator in a high-temperature gas phase reaction of HCP.A method of producing 1,1-dichloro-3,3,3-trifluoropropene by reacting 1,1,1,3,3,3-hexachloropropane ...
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JP2023056129A |
To prevent the acidification of 1,1-dichloro-3,3,3-trifluoropropene (HCFO-1223za) and find a novel use of HCFO-1223za, and provide an acidification-free, high-purity HCFO-1223za and a method for producing the same.The present invention p...
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JP7260803B2 |
An object is to provide an efficient method for producing HFC-143 or HFO-1132. Provided as a means for solution is a method for producing 1,1,2-trifluoroethane (HFC-143), comprising subjecting 1,1,2-trifluoroethylene to a reduction react...
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JP7259764B2 |
Provided is an efficient production method that enables production of 5-chloro-1,1,2,2,3,3,4,4-octafluoropentane with high selectivity without the need of a complicated post-treatment process. This production method for 5-chloro-1,1,2,2,...
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JP2023054182A |
To provide processes to obtain better results in production of HFO-1234yf, and/or to obtain HFO-1234ze (CF3CH=CHF, 1,3,3,3-tetrafluoropropene), which is also free of chlorine and has a refrigerant application, and/or processes which open...
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JP2023052523A |
To provide a novel high-efficiency purification method of a 2,3,3,3-tetrafluoropropene (HFO 1234 yf) containing fluorinated alkyne impurities.There is provided a process for reducing the concentration of a fluorinated alkyne impurity, su...
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JP2023048998A |
To provide a storage container holding quality as a solvent and a cleaning agent of 1-chloro-2,3,3-trifluoro-1-propene and performing inexpensive, safe and stable storage and transportation, a storage method, and a 1-chloro-2,3,3-trifluo...
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JP7252771B2 |
To provide a method for producing 1-chloro-2,2-difluoroethylene, from 1,2-dichloro-1,1-difluoroethane as the source material, wherein the production is possible under a relatively low temperature condition, and a decrease in the reaction...
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JP7252709B2 |
The invention first relates to a composition comprising at least 99 wt. % of 1,1,1,3,3 -pentachloropropane and at least one compound selected from a list of additional compounds consisting of dichloropropanes, trichloropropanes, tetrachl...
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JP2023513843A |
The present invention comprises at least 99.5% by weight iodofluorocarbon compound A and up to 0.5% by weight water, HF, HI, IF5, I2, O2, CO2, CO and nitrogen; and said iodofluorocarbon compound A is of formula (I), (R1)(R2)C(I)(R3) or f...
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JP7250654B2 |
Disclosed is a method for producing a perfluoroalkyne compound,the method using a catalyst comprising any one of the following catalysts (a) to (e):(a) a catalyst containing a specific element,(b) a catalyst containing at least two speci...
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JP7247045B2 |
To provide a novel method capable of efficiently producing 1,1,2-trichloro-2-fluoroethene (TCFE) and to provide a novel application of TCFE.There are provided: a method for producing 1,1,2-trichloro-2-fluoroethene (TCFE) which comprises ...
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JP2023511101A |
The present application relates to a process for preparing (E)-1,1,1,4,5,5,5-heptafluoro-4-(trifluoromethyl)pent-2-ene.
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JP7240332B2 |
An object of the present invention is to provide a simple, low-cost, and industrial method of producing a compound having a polyene skeleton containing hydrogen and fluorine and/or chlorine. A method of producing a halogenated diene repr...
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JP7236001B2 |
A fluoropolyether group-containing compound of formula (1a) or formula (1b). The symbols are as defined in the description.
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JP7233485B2 |
A process is provided comprising contacting and reacting the compound CF3CF2CHXC, wherein X is H or Cl, or the compound CF3CF=CXCl, wherein X is H or Cl, with hydrogen in the presence of a catalyst consisting essentially of Cu, Ru, Cu—...
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JP7233484B2 |
A process is provided comprising contacting and reacting the compound CF3CF2CHXC, wherein X is H or Cl, or the compound CF3CF=CXCl, wherein X is H or Cl, with hydrogen in the presence of a catalyst consisting essentially of Cu, Ru, Cu—...
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JP2023027248A |
To provide a separation method for taking out a heavy organic compound formed in various production processes of HCFO-1233zd(E).A method for separating HCFO-1233zd(E), HF and a mixture of a light substance and a heavy substance includes ...
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JP7223915B2 |
The process produces a fluorinated olefin from a fluorinated copolymer having at least one of sulfonic acid groups, carboxylic acid groups, or salts thereof. The process includes heating the fluorinated copolymer at a first temperature n...
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JP2023505993A |
A method for producing fluoroolefins comprises compounds of formula (1), RfCX1=CHCF3the fluorinated ethylene compound of formula (2), CX2X3=CX4X5includes the step of contacting in the presence of a catalyst. In the compound of formula (1...
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JP2023022231A |
To provide novel methods for preparing fluorinated organic compounds, and particularly methods of producing fluorinated olefins.A method for producing fluorinated organic compounds comprises converting at least one compound of Formula (I...
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JP2023021141A |
To provide a method capable of obtaining a perfluoroalkandiene compound in a high yield while reducing the generation amount of impurities which are difficult to separate.The production method is a method for producing a perfluoroalkandi...
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JP2023021148A |
To provide a method that can give perfluoroalkadiene compounds at high yield while reducing a produced amount of hard-to-separate impurities.Provided is a method for producing a perfluoroalkadiene compound represented by the general form...
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JP7219752B2 |
The invention discloses a method for preparation of alkylated, fluoro alkylated, chloro alkylated and fluorochloro alkylated compounds by a heterogeneous Co-catalysed alkylation or fluoro, chloro and fluorochloro alkylation with alkyl ha...
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JP7219625B2 |
To provide a method for producing 1-chloro-2,2-difluoroethylene, from 1,2-dichloro-1,1-difluoroethane as the source material, wherein the production is possible under a relatively low temperature condition, and a decrease in the reaction...
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JP2023017016A |
To provide use of a fluoropropane of CF3CH=CHF as a refrigerant.The invention provides use, as a refrigerant, of a fluoropropane of formula CF3CH=CHF produced by a production method of the fluoropropane of CF3CH=CHF. The production metho...
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JP7216791B2 |
The invention relates to a process for reducing the concentration of a fluorinated alkyne impurity, such as 3,3,3-trifluoropropyne (TFPY), in 2,3,3,3-tetrafluoropropene (HFO-1234yf) which comprises contacting such a mixture with a causti...
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JP7216043B2 |
A process for process for preparing 6-isopropenyl-3-methyl-9-decenyl acetate of the following formula (3), wherein Ac represents an acetyl group, the process comprising steps of: preparing a nucleophilic reagent, 5-isopropenyl-2-methyl-8...
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JP7210661B2 |
A process for the manufacture of 1,1,3,3-tetrachloropropene, the process comprising dehydrochlorinating 1,1,1,3,3-pentachloropropane.
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JP7209995B2 |
To provide a production process that can continuously produce 1,1,1,4,4,5,5,5-octafluoro-2-pentene (HFO1438 mzz) without using pure TFE having explosion risk.Said production process comprises: a first step of pyrolyzing chlorodifluoromet...
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JP7208542B2 |
Provided is a method that can efficiently produce a fluoroalkane compound (A) in which both of the carbon atoms at a position 2 and a position 3 are each bonded to one hydrogen atom and one fluorine atom. The production method is provide...
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JP2023501355A |
A heterogeneous azeotrope or azeotrope-like composition comprising 3,3,3-trifluoropropyne (TFPY) and hydrogen fluoride (HF), wherein about 71.5 wt.% to about 98.8 wt.% of 3 ,3,3-trifluoropropyne (TFPY) and about 1.2 wt.% to about 28.5 wt...
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JP2023500909A |
A heterogeneous azeotrope or azeotrope-like composition comprising 2-chloro-3,3,3-trifluoropropene (HFCO-1233xf) and water, comprising about 0.09 wt.% to about 92.69 wt.% 2-chloro-3,3,3-trifluoropropene (HFCO-1233xf) and about 7.31 wt.% ...
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JP7201187B2 |
The present disclosure addresses the problem of providing a novel method for producing a fluorinated iodinated organic compound.The problem can be solved by a method for producing a fluorinated iodinated organic compound, comprising reac...
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JP2023500534A |
A heterogeneous azeotrope or azeotrope-like composition comprising 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) and water, comprising about 0.05 wt.% to about 92.01 wt. % 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) and about 7.9...
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JP2022190072A |
To provide hydrofluoroolefins that can be employed in a wide range of applications, including their use as refrigerants, solvents, foam expansion agents, cleaning agents, aerosol propellants, dielectrics, fire extinguishants, and power c...
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