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WO/2019/019557A1 |
A method for co-production of a low-carbon foaming agent. 1,1,1,3,3-pentachloropropane and hydrogen fluoride are preheated and then introduced into a reactor, and react in the presence of a catalyst to obtain a reaction product, and the ...
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WO/2019/016457A1 |
The invention relates to a method for storing, in a closed container, a composition comprising 1,1,1,2,3,3-hexafluoropropane in a liquid/gas state composed of a liquid phase and a gas phase, characterised in that i) a stream comprising 1...
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WO/2019/013934A1 |
The invention relates to the use of chopped fibers in thermoplastic composite compounds, and in particular to thermoplastic fluoropolymer compounds. The fluoropolymer matrix contains thermoplastic fluoropolymers that have been grafted wi...
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WO/2019/009278A1 |
Provided are: a composition containing PFOB, which has lower PFOA content than conventional PFOBs and is not likely to have adverse effects on the environment; and a method for producing PFOB. A composition which contains C8F17Br, while ...
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WO/2019/003896A1 |
The purpose of the present invention is to provide: a method for efficiently producing 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) and/or 3-chloro-1,1,1,2-tetrafluoropropane (HCFC-244eb), which are advantageous starting materials fo...
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WO/2018/230719A1 |
The present invention addresses the problem of providing a method for efficiently removing water contained in pentafluoropropane. Provided as a solution to the problem is a method including a step in which a composition containing pentaf...
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WO/2018/228975A1 |
The present invention provides a method for preparing a compound of formula (I) F-(CF2)n-(CH2)m-Ro (I), wherein n is an integer from 2 to 12, m is an integer from 0 to 7, Ro is a linear or branched saturated alkyl group and o depicts the...
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WO/2018/224476A1 |
The present invention relates to a method for modifying fluorine distribution in a hydrocarbon compound, comprising a step of bringing said hydrocarbon compound into contact with a catalytic composition comprising a catalyst made from ch...
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WO/2018/224381A1 |
The present invention relates to a method for producing high-purity 1,1,1,2,3,3-hexafluoropropane and a composition containing mainly 1,1,1,2,3,3-hexafluoropropane, suitable for use as a cleaning agent in the semiconductor industry.
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WO/2018/224475A1 |
The present invention relates to a method for modifying the fluorine distribution in a hydrocarbon compound, comprising a step of bringing a hydrocarbon compound into contact with a catalytic composition comprising a catalyst made from c...
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WO/2018/218376A1 |
The present application is in the field of imaging reagents. In particular, the present application relates to labelled fluorocarbon imaging reagents, the preparation of the reagents, and their uses for imaging such as PET scanning.
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WO/2018/202835A1 |
The present invention relates to a process for the production of semifluorinated alkanes.
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WO/2018/197788A1 |
The invention relates to a method for the production of 2,3,3,3-tetrafluoropropene using a starting composition, comprising the steps of: bringing the starting composition into contact with HF, in the presence of a catalyst, in order to ...
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WO/2018/194908A1 |
A method for preparing photoactive perovskite materials. The method comprises the steps of: introducing a lead halide and a first solvent to a first vessel and contacting the lead halide with the first solvent to dissolve the lead halide...
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WO/2018/188375A1 |
Disclosed is a process for recovering dichloromethane in waste gas, comprising the specific steps of: step I, dichloromethane-containing waste gas (1) is introduced into the bottom of a dichloromethane absorber tower (3), depleted white ...
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WO/2018/173863A1 |
The present invention provides a method for industrially advantageously producing a fluorinated hydrocarbon (3). The method for producing a fluorinated hydrocarbon (3) according to the present invention is characterized by bringing a sec...
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WO/2018/143271A1 |
The present invention provides a method for producing a fluorohalogenated hydrocarbon comprising a step in which the outlet gas of a fluorination reactor is compressed by a compressor, wherein the production method is used to avoid that ...
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WO/2018/139654A1 |
Provided is an economically advantageous method for producing 1,1,2,2-tetrafluoropropane (HFC-254cb), in which method HFC-254cb is obtained easily and at high selectivity using readily available raw materials. A method for producing 1,1,...
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WO/2018/134530A1 |
The present invention relates to a composition comprising 69% to 78% by weight of 2,3,3,3-tetrafluoropropene, 16% to 22% by weight of difluoromethane, and 2 to 9% by weight of propane, relative to the total weight of the composition. The...
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WO/2018/131394A1 |
An efficient production method is provided by which 244ca having a high purity can be produced in a high yield. The production method for 244ca comprises a first step, in which TFPO is reacted with thionyl chloride in the presence of DMF...
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WO/2018/131395A1 |
A novel method is provided by which a hydrochlorofluorocarbon can be industrially produced efficiently. The hydrochlorofluorocarbon production method comprises pyrolyzing a compound represented by formula (1): (H(CF2CF2)nCH2O)2S=O (where...
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WO/2018/090507A1 |
Provided is an efficient method for separating 2-chloro-1,1,1,2-tetrafluoropropane and 2-chloro-3,3,3-trifluoropropene, having a green and safe operation process. The method uses a halogenated hydrocarbon, an alcohol, an ether, a nitrile...
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WO/2018/084089A1 |
A useful evaluation method which enables the higly efficient production of partially fluorinated alumina having a good catalytic activity is discoverd, and an organic compound isomerization method whereby it becomes possible to improve a...
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WO/2018/069609A1 |
The present invention relates to azeotropic and quasi-azeotropic compositions comprising 1-chloro-2,2-difluoroethane and 1,1-dichloroethylene. The present invention also relates to a method for producing compositions comprising 1-chloro-...
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WO/2018/066146A1 |
The present invention relates to a method for producing a fluorinated compound represented by formula (2): R2-F (where R2 represents a group obtained by removing a hydroxy group from a hydroxy compound having six or more carbon atoms), t...
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WO/2018/060576A1 |
The invention relates to a method for producing 1-chloro-2,2-difluoroethane from 1,1,2-trichloroethane, comprising at least one step of separating 1-chloro-2,2-difluoroethane from the organic phase produced during the method; said step c...
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WO/2018/060575A1 |
The invention relates to compositions comprising 1-chloro-2,2-difluoroethane, and the uses thereof.
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WO/2018/055266A1 |
The invention relates to a method for the separation of 2-chloro-1,1,1,2- tetrafluoropropane and 2-chloro-3,3,3-trifluoropropene, including a step in which a mixture comprising 2-chloro-3,3,3-trifluoropropene and 2-chloro-1,1,1,2- tetraf...
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WO/2018/055265A1 |
The present invention relates to a method for the production of 2-chloro-1,1,1-trifluoropropane (HCFC-253db) by means of the hydrogenation of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf).
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WO/2018/048783A1 |
The present invention provides a process for the dehydrochlorination of a chlorinated alkane to produce a chlorinated alkene. In particular, the processes comprise contacting a chlorinated alkane, a base, and a phase transfer catalyst.
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WO/2018/044787A1 |
A method for separating halocarbons and, in particular, a method for separating (Z)- 1 -chloro-3,3,3-trifluoropropene (HCFO-1233zd(Z), or simply 1233zd(Z)) and 1 -chloro-1,3,3,3-tetrafluoropropane (HCFC-244fa, or simply 244fa) via distil...
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WO/2018/041278A1 |
A chlorinolysis process for producing carbon tetrachloride comprising providing a chlorination zone at an operating temperature of from 400 to 600°C with i) chlorine, ii) a C1 chlorinated compound comprising 1 to 3 chlorine atoms and ii...
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WO/2018/037999A1 |
The purpose of the present invention is to provide an industrially convenient and inexpensive method for efficiently removing butenes from crude monofluorobutane that includes butenes without substantially causing the monofluorobutane to...
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WO/2018/029428A1 |
The present invention relates to compositions comprising 1,1,1,2,2-pentafluoropropane and trans-1,3,3,3-tetrafluoropropene, which are suitable for use in numerous fields.
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WO/2018/025914A1 |
The present invention is a reaction product preparation method for obtaining a reaction product from a starting raw material through a predetermined organic synthesis reaction, comprising: (a) the step of setting as a target wavelength t...
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WO/2018/022491A1 |
A process of the type for producing 1,1,1,2,3-pentachloropropane by introducing 1,1,1,3-tetrachloropropane, chlorine, and Lewis acid catalyst, optionally in the presence of carbon tetrachloride, the improvement comprising introducing the...
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WO/2018/022488A1 |
A process of the type for producing chlorinated propanes by reacting carbon tetrachloride with ethylene within a tank reactor that includes a liquid reaction mixture and a headspace above the reaction mixture wherein ethylene gas diffuse...
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WO/2017/223338A1 |
A process for the production of a chloroalkene that includes contacting a liquid phase chloroalkane with a solid catalyst, a catalyst deposited on a solid substrate, or combinations thereof, thereby causing the dehydrochlorination of the...
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WO/2017/216272A1 |
A method for providing polyvinyl chloride (PVC) comprises the following steps: a) providing electricity and an alkali metal chloride solution, preferably Li, K and/or Na, in a chlor-alkali electrolysis cell (17) and obtaining Cl2 and an ...
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WO/2017/183501A1 |
A method for producing 1,2-dichloro-3,3,3-trifluoropropene (1223xd) according to the present invention is characterized by comprising the step of reacting 1,1,2,3,3-pentachloropropene (1220xa) with a fluorinating agent, wherein hydrogen ...
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WO/2017/178857A1 |
The present invention provides a process of manufacture of 2,3,3,3-tetrafluoropropene by fluorination of very high purity 1,1,1,2,3-pentachloropropane (HCC-240db) into product 2,3,3,3- tetrafluoropropene (HFO-1234yf), the process compris...
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WO/2017/177763A1 |
A system and method for separating N-Methyl-2-pyrrolidone (NMP)/chloroform. By combining a falling film evaporator, a forced circulation evaporator, and a fractionating column with a corresponding technological operation method, the syst...
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WO/2017/177988A1 |
A process for producing a chlorinated alkane in which an alkene or an alkane feedstock is contacted with chlorine in a chlorination zone to produce a reaction mixture containing the chlorinated alkane, wherein the chlorine supplied into ...
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WO/2017/174889A1 |
The present invention relates to a method for preparing hexafluorobutadiene comprising the following steps: (a) hydrodechlorinating hexachlorobutadiene to form a first stream comprising 1,2,3,4-tetrachlorobutadiene and optionally unreact...
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WO/2017/169809A1 |
The present invention relates to a filter which is capable of suppressing decomposition of a fluorinated saturated hydrocarbon when a composition that contains the fluorinated saturated hydrocarbon at a high concentration is filtered eve...
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WO/2017/159544A1 |
The purpose of the present invention is to inhibit degradation of a fluorinated saturated hydrocarbon during storage or use of a dry-etching composition that contains the fluorinated saturated hydrocarbon in a high concentration. The dry...
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WO/2017/158415A1 |
Disclosed are methods and systems of catalyzing the reaction of alkyl halides to light olefins using a TEAOH templated MeAPSO-34 molecular sieve catalyst. These methods and systems have been shown to have maximum combined selectivity of ...
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WO/2017/155356A1 |
The present application relates to a method for preparing an alkyl halide using a hydrazine derivative under solvent-free conditions. The present invention can simplify a preparation process, has an economic benefit because an additional...
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WO/2017/154948A1 |
The present invention addresses the problem of providing a novel method for producing a compound having a fluoromethylene group with high efficiency. The problem can be solved by a method for producing a compound represented by formula (...
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WO/2017/120264A1 |
The present invention provides improved processes for preparing halogenated alkanes. In particular, the processes comprise reacting an alkene, a halogenated alkene, or combinations thereof and a halogenated methane with at least one chlo...
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