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1. 发明授权

US11299446B2 Method for producing and purifying 2,3,3,3-tetrafluoro-1-propene 有权
公开(公告)号：US11299446B2
公开(公告)日：2022-04-12
申请号：US17121894
申请日：2020-12-15
申请人： Arkema France
发明人： Abdelatif Baba-Ahmed , Bertrand Collier , Dominique Deur-Bert , Laurent Wendlinger
IPC分类号： C07C21/18 , C07C19/08 , C07C19/10 , C07C19/03 , C07C17/386 , C07C17/383 , C07C17/38 , C09K5/04
摘要： The invention relates to a method for producing and purifying 2,3,3,3-tetrafluoro-1-propene using a first composition comprising 2,3,3,3-tetrafluoro-1-propene, 3,3,3-trifluoropropene (1243zf), and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), said method comprising the steps of: (a) bringing said first composition into contact with at least one organic extraction agent in order to form a second composition; (b) extractive distilaation of said second composition in order to form (i) a third composition comprising said organic extraction agent, 3,3,3-trifluoropropene (1243zf), and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), and (ii) a stream comprising the 2,3,3,3-tetrafluoro-1-propene; and (c) recovery and separation of said third composition in order to form a stream comprising said organic extraction agent and a stream comprising 3,3,3-trifluoropropene (1243zf) and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E).

2. 发明授权

US11034634B2 Method for producing fluorohalogenated hydrocarbon 有权
公开(公告)号：US11034634B2
公开(公告)日：2021-06-15
申请号：US16481300
申请日：2018-01-31
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Kazuhiro Takahashi , Tatsuya Takakuwa
IPC分类号： C07C17/20 , C07C17/383 , C07C17/25 , C07C17/38 , C07C17/263 , C07C21/18
摘要： A method for producing a fluorine-containing halogenated hydrocarbon comprising reacting a chlorine-containing compound and hydrogen fluoride in a vapor phase, and a separation step of separating a reaction product containing hydrogen fluoride, hydrogen chloride, and organic matter containing the fluorine-containing halogenated hydrocarbon into multiple components, the separation step comprising: separating the reaction product into a gas phase and a liquid phase, increasing the pressure of the liquid phase and supplying the liquid phase into a distillation column, compressing the gas phase and supplying the gas phase into the distillation column, separating a first stream containing the hydrogen chloride from the top of the distillation column, and separating a second stream containing the organic matter and the hydrogen fluoride from the bottom of the distillation column. The method is for stably obtaining a target compound by preventing hydrogen fluoride contained in the outlet gas from condensing during compression.

3. 发明申请

US20210171425A1 PROCESS FOR PREPARING A CHLORINATED ALKENE 有权
公开(公告)号：US20210171425A1
公开(公告)日：2021-06-10
申请号：US17173166
申请日：2021-02-10
申请人： SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.
发明人： Zdenek ONDRUS , Pavel KUBICEK , Karel FILAS , Petr SLADEK
IPC分类号： C07C17/25 , C07C21/04 , C07C17/38 , C07C17/383 , C07C17/395
摘要： Disclosed is a process for preparing a chlorinated alkene, comprising contacting a chlorinated alkane with a catalyst in a dehydrochlorination zone to produce a liquid reaction mixture comprising the chlorinated alkane and the chlorinated alkene, and extracting chlorinated alkene from the reaction mixture, wherein the concentration of the chlorinated alkene in the reaction mixture present in the dehydrochlorination zone is controlled such that the molar ratio of chlorinated alkene:chlorinated alkane is from 1:99 to 50:50.

4. 发明授权

US10689315B2 Method for co-producing low-carbon foaming agents 有权
公开(公告)号：US10689315B2
公开(公告)日：2020-06-23
申请号：US16337408
申请日：2018-06-25
申请人： Zhejiang Quhua Fluor-Chemistry Co Ltd
发明人： Jiangyong Hong , Bo Yang , Yang Zhao , Yan Zhang , Huadong Zhou , Hao Ouyang , Haitao Gong , Min Fang
IPC分类号： C07C17/20 , B01J23/80 , B01J23/825 , C07C17/23 , C07C17/38 , C07C19/08 , C07C21/18
摘要： The invention discloses a method for co-operating low-carbon foaming agents, comprising: preheating 1,1,1,3,3-pentachloropropane and hydrogen fluoride and then introducing into a reactor to have a reaction in the presence of a catalyst to obtain a reaction product, and separating and purifying to obtain the following low-carbon foaming agent products: trans-1,3,3,3-tetrafluoropropene, cis-1,3,3,3-tetrafluoropropene, 1,1,1,3,3-pentafluoropropane, trans-1-chloro-3,3,3-trifluoropropene, cis-1-chloro-3,3,3-trifluoropropene. The invention has the advantages of simple process, environmental friendliness, high production efficiency and low cost.

5. 发明授权

US10647643B2 Process for drying hydro(chloro)fluoroolefins 有权
公开(公告)号：US10647643B2
公开(公告)日：2020-05-12
申请号：US15745489
申请日：2016-07-14
申请人： MEXICHEM FLUOR S.A. DE C.V.
发明人： Emma Jayne Hodgson , James Henry Murray , Gary Lloyd
IPC分类号： C07C17/38
摘要： The present invention provides a method for purifying a fluid comprising a first drying stage which comprises contacting a first fluid stream comprising one or more hydro(chloro)fluoroolefins and water with a source of sulphuric acid to produce a first treated fluid stream comprising the hydro(chloro)fluoroolefin(s) and a first spent sulphuric acid stream, wherein the first treated fluid stream comprises a lower concentration of water than the first fluid stream.

6. 发明授权

US10479744B2 Process for producing highly pure chlorinated alkane 有权
公开(公告)号：US10479744B2
公开(公告)日：2019-11-19
申请号：US15708159
申请日：2017-09-19
申请人： SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.
发明人： Zdenek Ondrus , Pavel Kubicek , Karel Filas , Petr Sladek
IPC分类号： C07C17/25 , C07C17/04 , C07C17/383 , C07C17/38 , C07C19/01 , B01D3/32
摘要： Disclosed is a process for producing highly pure chlorinated alkane in which a chlorinated alkene is contacted with chlorine in a reaction zone to produce a reaction mixture containing the chlorinated alkane and the chlorinated alkene, and extracting a portion of the reaction mixture from the reaction zone, wherein the molar ratio of chlorinated alkane:chlorinated alkene in the reaction mixture extracted from the reaction zone does not exceed 95:5.

7. 发明授权

US10392327B2 Methyl fluoride production method 有权
公开(公告)号：US10392327B2
公开(公告)日：2019-08-27
申请号：US15546724
申请日：2016-02-05
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Shingo Nakamura , Yuusuke Etou , Keisuke Tano , Yoshinori Tanaka
IPC分类号： C07C17/361 , C07C19/08 , C07C17/383 , C07C17/38 , F25J3/02
摘要： A method for producing methyl fluoride, comprising the steps of: (1) pyrolyzing a starting compound in a gas phase to thereby obtain a mixed gas containing methyl fluoride and acid fluoride; and (2) rectifying the mixed gas obtained in step (1) to thereby obtain methyl fluoride.

8. 发明授权

US10125066B1 Process for making high purity 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) 有权
公开(公告)号：US10125066B1
公开(公告)日：2018-11-13
申请号：US15825334
申请日：2017-11-29
申请人： Honeywell International Inc.
发明人： Christian Jungong , Daniel C. Merkel
IPC分类号： C07C17/087 , C07C19/10 , C07C21/18 , C07C17/38 , C07C17/25 , C07C21/04 , B01J23/44 , B01J21/02
摘要： A method for producing 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) from a reaction composition including a mixture of HCFC-244bb and 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) by selectively hydrogenating the HCFO-1233xf component of the mixture in a vapor phase in the presence of hydrogen gas and a catalyst to generate a product composition including unreacted HCFC-244bb and hydrogenation products of HCFO-1233xf, such as 2-chloro-1,1,1-trifluoropropane (HCFC-253db), which may be separated from the HCFC-244bb by distillation. The separated HCFC-244bb may then be purified by subsequent acid neutralization and drying steps.

9. 发明授权

US10087126B2 Process for the preparation of halo-substituted benzenes 有权
公开(公告)号：US10087126B2
公开(公告)日：2018-10-02
申请号：US15516110
申请日：2015-10-08
申请人： SYNGENTA PARTICIPATIONS AG
发明人： Helmars Smits , Paul Knochel , Thomas Klatt , Matthias Becker
IPC分类号： C07C17/25 , C07C17/383 , C07C17/35 , C07C17/38 , C07C17/013
摘要： The invention relates to a process for the preparation of compound of formula (I) wherein R1 is halogen and R2 is halogen or hydrogen; comprising a) reacting the compound of formula (II) in an aprotic organic solvent in the presence of an aprotic polar co-solvent with a magnesium amide base followed by a halogenating agent, to the compound of formula I wherein R1 is halogen and R2 is hydrogen, and b) reacting the compound of formula (I), wherein R1 is chloro and R2 is hydrogen, in an aprotic organic solvent in the presence of an aprotic polar co-solvent with a magnesium amide base followed by a halogenating agent to a compound of formula I, wherein R1 is chloro and R2 is halogen.

10. 发明授权

US09896400B2 Process for producing a chlorinated C3-6 alkane 有权
公开(公告)号：US09896400B2
公开(公告)日：2018-02-20
申请号：US14882492
申请日：2015-10-14
申请人： SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.
发明人： Karel Filas , Pavel Kubicek , Zdenek Ondrus , Petr Sladek
IPC分类号： C07C17/275 , C07C17/38 , C07C17/383 , C07C17/02 , C07C19/01
CPC分类号： C07C17/02 , C07C17/275 , C07C17/38 , C07C17/383 , C07C19/01 , Y02P20/582
摘要： Disclosed is a process for producing a chlorinated C3-6 alkane comprising providing a reaction mixture comprising an alkene and carbon tetrachloride in a principal alkylation zone to produce chlorinated C3-6 alkane in the reaction mixture, and extracting a portion of the reaction mixture from the principal alkylation zone, wherein: a) the concentration of the chlorinated C3-6 alkane in the reaction mixture in the principal alkylation zone is maintained at a level such that the molar ratio of chlorinated C3-6 alkane:carbon tetrachloride in the reaction mixture extracted from the alkylation zone does not exceed 95:5 when the principal alkylation zone is in continuous operation; and/or b) the reaction mixture extracted from the principal alkylation zone additionally comprises alkene and the reaction mixture is subjected to a dealkenation step in which at least about 50% or more by weight of the alkene present in the reaction mixture is extracted therefrom and at least about 50% of the extracted alkene is fed back into the reaction mixture provided in the principal alkylation zone; and/or c) the reaction mixture present in the principal alkylation zone and extracted from the principal alkylation zone additionally comprises a catalyst, and the reaction mixture extracted from the principal alkylation zone is subjected to an aqueous treatment step in which the reaction mixture is contacted with an aqueous medium in an aqueous treatment zone, a biphasic mixture is formed and an organic phase comprising catalyst is extracted from the biphasic mixture.

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