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WO/2024/083545A1 |
The present invention relates to a process for providing 4-chloro-2-(trifluoromethyl)phenyl Grignard compound. Further, the present invention relates to the process for preparation of 4-chloro-2-(trifluoromethyl)phenyl compounds from 4-c...
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WO/2024/082473A1 |
The present invention relates to the technical field of fluorine chemical engineering, and in particular to a preparation method for trans-1,1,1,4,4,4-hexafluoro-2-butene. The preparation method for trans-1,1,1,4,4,4-hexafluoro-2-butene ...
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WO/2023/044427A8 |
A method for producing a purified stream of vinyl chloride monomer, the method comprising (i) providing a gaseous stream that includes vinyl chloride monomer, carbon dioxide, and water; (ii) dehydrating the gaseous stream to remove subst...
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WO/2024/075666A1 |
The purpose of the present invention is to provide a fluoroolefin production method, which has a high reaction conversion ratio and selectivity of a target substance, is capable of obtaining the target substance with a high yield, has a ...
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WO/2024/071127A1 |
The present disclosure provides a method for obtaining HFO-1132 (E) and/or HFO-1132 (Z) more efficiently than conventional methods. The present disclosure specifically provides a method for producing a composition that contains HFO-113...
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WO/2024/063425A1 |
The present invention relates to a methyl chloride producing method with improved energy efficiency using a multi-step reaction, wherein in the production of methyl chloride through methane chlorination, chlorinated methane such as methy...
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WO/2024/062827A1 |
A production method that reacts 1,1,2-trichloro-1,2,2-trifluoroethane with hydrogen in the gas phase in the presence of a diluent and produces chlorotrifluoroethylene and trifluoroethylene, wherein the volume of the diluent supplied to t...
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WO/2024/057657A1 |
This fluoroolefin production method involves a step of producing a fluoroolefin given by formula (2) by bringing a fluorocarbon given by formula (1) into contact with a catalyst, wherein the catalyst contains α-alumina and the average p...
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WO/2024/058532A1 |
The present invention relates to a method for producing terephthaloyl chloride, and the purity of hexachloroparaxylene, which is an intermediate raw material, can be improved by adopting a photochlorination method instead of a radical in...
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WO/2024/046801A1 |
The present invention relates to a process for producing vinyl chloride by catalytic thermal cracking of 1,2-dichloroethane, in which the heat required for the thermal cracking is supplied via a liquid or condensing heat carrier medium (...
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WO/2024/040906A1 |
Disclosed is a method for recycling a lithium-ion battery electrolyte. By means of freezing a used lithium-ion battery and then dissembling same, environmental pollution caused by volatilization and decomposition of the electrolyte can b...
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WO/2024/034583A1 |
The present invention provides a method for producing a halogenated alkene compound which is represented by general formula (1): R1-CR2=CR3-R4, the method comprising a step for subjecting a halogenated alkane compound which is represente...
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WO/2024/033429A1 |
The present invention relates to side-chain functionalized polymers and copolymers and their use as alkaline anion exchange membrane materials, for example in alkaline water electrolyzers, fuel cells or flow batteries.
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WO/2024/029524A1 |
A fluorine-containing aromatic compound such as perfluorotoluene can be produced efficiently by reacting a compound represented by general formula (2) (In the formula, n is the same as above. X3 are the same or different and represent a ...
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WO/2024/028729A1 |
The present disclosure relates to processes for the fluorination of molecules. One aspect provides a process for incorporating a fluorine atom into a molecule, said process comprising converting a compound of formula X—SG into a compou...
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WO/2024/029352A1 |
Provided is a fluorine compound that is represented by formula (1) and that has a halogen atom and an allyl group. (In the formula, each R independently represents a hydrogen atom or a methyl group. Each X independently represents a fluo...
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WO/2024/029525A1 |
Provided is a novel method for producing a fluorinated organic compound. The production method is a method for producing a fluorine adduct of a compound represented by formula (1) (in the formula, R1, R2, and n have the same meanings as ...
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WO/2024/024869A1 |
To provide a method for producing chlorofluorobutane (CFB) by dimerizing trichloroethylene (TCE) to generate chlorinated butadiene and fluorinating the hydrogen atoms of this chlorinated butadiene. Trichloroethylene (TCE) is dimerized ...
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WO/2024/024871A1 |
The objective of the present invention is to convert by-products into a target product through relatively simple operations, and to increase production efficiency throughout the process, in a series of processes for producing 1,2,3,4-tet...
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WO/2024/023020A1 |
The disclosure provides a process for producing methanol and hydrogen from methane. The process of the disclosure comprises the steps of: • a) providing a gaseous feed stream comprising methane; • b) reacting said gaseous feed stream...
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WO/2024/023024A2 |
A method of producing hydrogen and/or bromine by electrolysing hydrogen bromide using a fluoropolymer membrane having a glass transition temperature Tg ≥ 110°C in an electrolysis of hydrogen bromide, wherein the hydrogen bromide stems...
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WO/2024/023018A1 |
The present invention relates to a process for producing dimethyl ether (DME) and hydrogen (H2) from methane, comprising the steps of: a) providing a gaseous feed stream comprising methane; b) reacting said gaseous feed stream with at le...
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WO/2024/023027A2 |
A method of electrolysing hydrogen bromide comprising the steps i) brominating a hydrocarbon such that hydrogen bromide is produced, ii) providing an electrolytic cell comprising an anode, a cathode, and a membrane sandwiched between the...
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WO/2024/023016A1 |
The present invention relates to a process for producing methanol (MeOH) and hydrogen (H2) from methane, comprising the steps: a) providing a gaseous feed stream comprising methane; b) reacting said gaseous feed stream with at least one ...
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WO/2024/016438A1 |
The present invention relates to a preparation method for hexafluorobutadiene. The method comprises: 1) performing temperature raising and pressure increase reactions on chlorotrifluoroethylene, and then performing a thermal polymerizati...
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WO/2024/013441A1 |
The present invention relates to a method for separating a mixture comprising a vinylidene fluoride (VDF) and hexafluoropropene (HFP), said method comprising a step (a) of contacting the mixture with a membrane M1 in order to form a flow...
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WO/2023/280638A9 |
The application relates to vinyl thianthrenium compounds Vinyl- TT+X- of the Formula (I), a process for preparing the same and the use thereof for vinylating organic compounds.
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WO/2024/015371A1 |
Two methods for reducing CFC impurities and, in particular, CFC-114, in the HFO-1234ze(E) production process from the reaction of CFC-113 and HF. The first method involves subjecting an intermediate or recycle stream to separation and di...
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WO/2024/013442A1 |
The present invention relates to a method for purifying chlorotrifluoroethylene from a mixture comprising chlorotrifluoroethylene (CTFE) and a hydrofluoroolefin; said method comprising a step (a') of bringing said mixture into contact wi...
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WO/2023/245633A1 |
The present invention provides a process for producing chloroethane, comprising the following steps: (1) separating sucralose tail gas to prepare concentrated hydrochloric acid; (2) desorption and concentration of the concentrated hydroc...
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WO/2023/243522A1 |
The purpose of the present invention is to provide a method for producing an aromatic compound, wherein a cross-coupling reaction by means of a mechanochemical process is carried out in a state where a solvent is not substantially contai...
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WO/2023/242867A1 |
The present invention discloses a process for hydrodechlorination of 2,5-dichlorotoluenes to obtain toluene and monochlorotoluenes. Particularly, the present invention discloses a process for hydrodechlorination of dichlorotoluenes, wher...
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WO/2023/212121A9 |
The present disclosure features a method of modulating production of a small halogenated organic compound with a peroxidase enzyme, and related compositions and methods of use thereof.
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WO/2023/236741A1 |
Disclosed is a continuous preparation method for 1,1,1,2,3-pentachloropropane. 1,1,1,3-tetrachloropropane and chlorine are continuously introduced into a reactor respectively and are subjected to a reaction under the action of a solid ox...
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WO/2023/237854A1 |
The specification describes a process for the production of vinyl chloride monomer (VCM) from acetylene and HCl. The process involves a primary reactor and a secondary reactor each comprising a hydrochlorination catalyst. The feed from t...
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WO/2023/233258A1 |
The present disclosure relates to a process for the preparation of 1-chloro-1,1-difluoroethane. The process comprises reacting vinylidene chloride by using an anhydrous hydrogen fluoride in the presence of a catalyst to obtain 1-chloro-1...
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WO/2023/226226A1 |
A rectification control system for preparation of electronic-grade trifluoromethane and a control method therefor. The method comprises: acquiring temperature data of a molecular sieve adsorber, pressure data of the molecular sieve adsor...
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WO/2023/228083A1 |
The present disclosure relates to a process for the preparation of pentoxifylline intermediate. Particularly, the present disclosure relates to a process for the preparation of 6-chloro-2- hexanone. The present disclosure provides an alt...
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WO/2023/229963A1 |
The present invention relates methods of producing, blending, charging, replacing, and packaging fluoroolefin-containing compositions free of oxygen and oxidizing components and/or free of oligomer inhibitors and/or moisture.
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WO/2023/221165A1 |
The present application discloses a method for preparing 1-(tert-butyl)-3-chloronaphthalene, comprising: 1-naphthylamine and N-chlorosuccinimide reacting in a solvent to generate a first intermediate; the first intermediate and N-bromosu...
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WO/2023/222954A1 |
A method is provided for manufacturing vinyl chloride monomer (VCM), the method comprises subjecting ethylene dichloride (EDC) to thermal cracking to yield a VCM-containing gaseous product, in which method an amount of thermal energy req...
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WO/2023/213893A1 |
The present invention relates to a method for producing trifluoroethylene in a reactor provided with a fixed catalytic bed comprising a catalyst, said method comprising a step a) of reacting, in the gas phase, a composition A comprising ...
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WO/2023/206914A1 |
The present application relates to the field of intelligent manufacturing of an electronic-grade gas, and specifically discloses a rectification control system and a rectification control method for preparing electronic-grade methyl fluo...
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WO/2023/210826A1 |
The purpose of the present invention is to provide such a temperature difference that the temperature of a product gas discharged from a reaction container becomes lower than the temperature in a decomposition reaction system, i.e., the ...
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WO/2023/210724A1 |
A purpose of the present invention is to provide a method for producing 1,1,1,3,5,5,5-heptafluoro-2-pentene (HFO-1447) that is highly pure, particularly with a purity of higher than 99%. Another purpose of the present invention is to pro...
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WO/2023/206915A1 |
Disclosed in the present invention is a tail gas absorption device for producing electronic grade trifluoromethane. The tail gas absorption device comprises a base and a treatment tower fixedly mounted on the base, wherein the interior o...
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WO/2023/210729A1 |
The purpose of the present invention is to provide a novel method for producing 3-chloro-1,1,1,5,5,5-hexafluoro-2-pentene Provided is a method for producing 3-chloro-1,1,1,5,5,5-hexafluoro-2-pentene, the method including a step for rea...
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WO/2023/206724A1 |
A rectification control system (200) and control method for the preparation of electronic-grade difluoromethane. The rectification control system (200) for the preparation of electronic-grade difluoromethane comprises a reactor (210), a ...
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WO/2023/195774A1 |
The present invention relates to an ionic UV photoinitiator and a preparation method therefor, the ionic UV photoinitiator including an iodonium salt having a purity of 95% or more as measured by anion ion-exchange chromatography.
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WO/2023/190846A1 |
According to the present invention, a compound represented by general formula (2) [In the formula, X3 may be the same or different from each other, each of which represents a hydrogen atom or a halogen atom other than a fluorine atom, wh...
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