公开(公告)号：US20240182386A1

公开(公告)日：2024-06-06

申请号：US17768287

申请日：2020-10-13

申请人： University of Kansas

发明人： Mark Brandon Shiflett ,  Ana Rita Colaco Morais

IPC分类号： C07C17/386

CPC分类号： C07C17/386

摘要： Processes for separating an azeotropic mixture are provided. In an embodiment, such a process comprises exposing an azeotropic mixture comprising a first (hydro)fluorocarbon and a second (hydro)fluorocarbon to an ionic liquid comprising a cation and a non-fluorinated anion at a temperature and a pressure at which the ionic liquid absorbs more of one of the first and second (hydro)fluorocarbons than another of the first and second (hydro)fluorocarbons as determined on a mass basis to form a (hydro)fluorocarbon-containing ionic liquid and a processed azeotropic mixture.

公开(公告)号：US20230406836A1

公开(公告)日：2023-12-21

申请号：US17736415

申请日：2022-05-04

申请人： NEW GREEN WORLD B.V.

发明人： Frank VERGUNST ,  Sander LAURENTIUS

IPC分类号： C07D317/36 ,  C07C17/386 ,  B01J31/22 ,  B01J37/22 ,  B01J35/02 ,  B01D3/14

CPC分类号： C07D317/36 ,  C07C17/386 ,  B01J31/2217 ,  B01J37/22 ,  B01J35/026 ,  B01D3/14 ,  B01J2531/31 ,  B01J2531/0208 ,  B01J2231/4288

摘要： The invention is directed to a process to continuously prepare a cyclic carbonate product by reacting an epoxide compound with carbon dioxide in the presence of a supported dimeric aluminium salen complex. The process is performed in a reactor comprising a slurry of the supported dimeric aluminium salen complex and liquid cyclic carbonate product. The produced cyclic carbonate is discharged from the reactor while the supported dimeric aluminium salen complex remains in the reactor. The liquid carbonate product is purified by means of distillation. Between the reactor and the distillation one or more buffer vessels are present having a volume of between 5 and 50 m3 per kmol of dimeric aluminium salen complex as present in the reactor.

公开(公告)号：US20230063030A1

公开(公告)日：2023-03-02

申请号：US17946707

申请日：2022-09-16

申请人： Central Glass Company, Limited

发明人： Satoshi YOSHIKAWA ,  Hideaki IMURA ,  Naoki NISHINAKA

IPC分类号： C07C17/386

摘要： According to an embodiment, a method for producing a (hydro)halocarbon includes a step of purifying the (hydro)halocarbon by reduced-pressure distillation of an azeotropic or azeotropic-like composition containing the (hydro)halocarbon and a compound different from the (hydro)halocarbon. According to another embodiment, a method for producing a (hydro)halocarbon includes a step purifying the (hydro)halocarbon by reduced-pressure distillation of an azeotropic or azeotropic-like composition containing the (hydro)halocarbon and a compound different from the (hydro)halocarbon, wherein standard boiling points of both the (hydro)halocarbon and the compound are 80° C. or lower.

公开(公告)号：US10899689B2

公开(公告)日：2021-01-26

申请号：US16063734

申请日：2016-12-14

申请人： Arkema France

发明人： Abdelatif Baba-Ahmed ,  Bertrand Collier ,  Dominique Deur-Bert ,  Laurent Wendlinger

IPC分类号： C07C17/386 ,  C07C17/383 ,  C07C21/18 ,  C07C19/10 ,  C09K5/04

摘要： The invention concerns a method for purifying 2-chloro-3,3,3-trifluoropropene (1233xf) from a first composition comprising 2-chloro-3,3,3-trifluoropropene and at least one of the compounds chosen from the group consisting of E-1-chloro-3,3,3-trifluoro-1-propene (1233zd E), 1,1,1,3,3-pentafluoropropane (245fa) and 1,1,1,3,3,3-hexafluoropropane (236fa), said method comprising the steps of bringing said first composition into contact with at least one organic extractant in order to form a second composition; extractive distillation of said second composition in order to form a third composition comprising at least one of the compounds chosen from the group consisting of E-1-chloro-3,3,3-trifluoro-1-propene (1233zd E), 1,1,1,3,3-pentafluoropropane (245fa) and 1,1,1,3,3,3-hexafluoropropane (236fa), and said organic extractant; and a stream comprising 2-chloro-3,3,3-trifluoropropene.

公开(公告)号：US20200247735A1

公开(公告)日：2020-08-06

申请号：US16757501

申请日：2018-10-23

申请人： DAIKIN INDUSTRIES, LTD.

发明人： Kazuhiro TAKAHASHI ,  Yuuko OHHIGASHI ,  Junpei IYOTA

IPC分类号： C07C17/386

摘要： By subjecting a starting material composition containing hexafluorobutadiene and at least one additional compound selected from the group consisting of octafluoro-1-butene, octafluoro-2-butene, heptafluoro-1-butene, and heptafluoro-2-butene to extractive distillation in the presence of an extraction solvent to reduce the concentration of the additional compound, hexafluorobutadiene with higher purity can be obtained.

公开(公告)号：US10647644B2

公开(公告)日：2020-05-12

申请号：US16571912

申请日：2019-09-16

申请人： Honeywell International Inc.

发明人： Christian Jungong ,  Daniel C. Merkel ,  Haiyou Wang ,  Hang T. Pham ,  Ryan J. Hulse

IPC分类号： C07C21/18 ,  C07C19/16 ,  C07C17/386

摘要： The present disclosure provides azeotrope or azeotrope-like compositions including trifluoroiodomethane (CF3I) and hexafluoropropene (HFP), and a method of forming an azeotrope or azeotrope-like composition comprising the step of combining hexafluoropropene (HFP) and trifluoroiodomethane (CF3I) to form an azeotrope or azeotrope-like comprising hexafluoropropene (HFP) and trifluoroiodomethane (CF3I) having a boiling point of about −31.21° C.±0.30° C. at a pressure of about 14.21 psia±0.30 psia.

公开(公告)号：US20190016653A1

公开(公告)日：2019-01-17

申请号：US16076810

申请日：2017-03-03

申请人： Arkema France

发明人： Abdelatif BABA-AHMED ,  Bertrand COLLIER ,  Dominique DEUR-BERT ,  Laurent WENDLINGER

IPC分类号： C07C17/386 ,  C07C21/22 ,  C07C17/20 ,  B01D3/14

摘要： The invention relates to an azeotropic or quasi-azeotropic composition comprising hydrochloric acid and trifluoropropyne. The invention also relates to a method for separating 2,3,3,3-tetrafluoropropene and trifluoropropyne from a composition A containing 2,3,3,3-tetrafluoropropene and trifluoropropyne, said method comprising the steps of bringing said composition A into contact with an inorganic compound in order to form a composition B; and distilling composition B in order to from a first flow B1 containing trifluoropropyne and the inorganic compound, and a second flow B2 containing 2,3,3,3-tetrafluoropropene.

公开(公告)号：US20180370881A1

公开(公告)日：2018-12-27

申请号：US16063304

申请日：2016-12-14

申请人： Arkema France

发明人： Abdelatif BABA-AHMED ,  Bertrand COLLIER ,  Dominique DEUR-BERT ,  Laurent WENDLINGER

IPC分类号： C07C17/386 ,  C07C17/25

摘要： The present invention concerns a method for producing for producing and purifying 2,3,3,3-tetrafluoro-1-propene (1234yf) from a first composition comprising 2,3,3,3-tetrafluoro-1-propene and chloromethane (40), said method comprising the steps of: (a) bringing said first composition into contact with at least one organic extractant in order to form a second composition; (b) extractive distillation of said second composition in order to form (i) a third composition comprising said organic extractant and chloromethane (40); and (ii) a stream comprising 2,3,3,3-tetrafluoro-1-propene (1234yf); (c) recovering and separating said third composition, preferably by distillation, in order to form a stream comprising said organic extractant and a stream comprising chloromethane (40).

公开(公告)号：US09090531B2

公开(公告)日：2015-07-28

申请号：US13804738

申请日：2013-03-14

申请人： Honeywell International Inc.

发明人： Haiyou Wang ,  Huseh Sung Tung ,  Selma Bektesevic

IPC分类号： C07C17/25 ,  C07C17/38 ,  C07C17/383 ,  C07C17/42 ,  C07C21/04 ,  C07C17/278 ,  C07C17/386

CPC分类号： C07C17/42 ,  C07C17/25 ,  C07C17/278 ,  C07C17/38 ,  C07C17/386 ,  C07C21/04

摘要： This invention is directed to a method for mitigating HCl generation during 1230xa purification, which comprises the steps of; (a) adding a chelating agent into 1230xa crude, and (b) conducting the 1230xa purification in the presence of said chelating agent at a quantity sufficient to reduce or prevent 1230xa decomposition. Examples of chelating agent include tributyl phosphate (TBP), tripropyl phosphate (TPP), and triethyl phosphate (TEP). The concentration of chelating agent in 1230xa crude can range from 0.001 to 20 wt %, preferably from 0.01 to 10 wt %, and more preferably from 0.1 to 5 wt %.

摘要翻译： 本发明涉及一种减轻1230xa纯化期间HCl产生的方法，其包括以下步骤： （a）向1230xa粗品中加入螯合剂，和（b）在所述螯合剂存在下，以足以减少或防止1230×分解的量进行1230xa纯化。 螯合剂的实例包括磷酸三丁酯（TBP），磷酸三丙基酯（TPP）和磷酸三乙酯（TEP）。 1230xa原料中螯合剂的浓度可以为0.001〜20重量％，优选为0.01〜10重量％，更优选为0.1〜5重量％。

公开(公告)号：US09067858B2

公开(公告)日：2015-06-30

申请号：US13831064

申请日：2013-03-14

申请人： Occidental Chemical Corporation

发明人： John Lee Dawkins ,  Darrell Gene Hollis ,  Rodney L. Klausmeyer ,  Keith S. Kramer ,  Michael Andrew Garmon

IPC分类号： C07C17/383 ,  C07C17/38 ,  C07C17/06 ,  C07C17/25 ,  C07C19/01 ,  C07C17/386 ,  C07C17/42 ,  C07C17/395

CPC分类号： C07C17/386 ,  B01D3/009 ,  B01D3/10 ,  B01D3/34 ,  B01D11/04 ,  C07C17/06 ,  C07C17/25 ,  C07C17/278 ,  C07C17/38 ,  C07C17/383 ,  C07C17/395 ,  C07C17/42 ,  Y02P20/127 ,  C07C19/01 ,  C07C21/04

摘要： Processes for isolating 1,1,1,2,3-pentachloropropane from a crude product stream containing the 1,1,1,2,3-pentachloropropane and ferric chloride. The processes may include deep distillation of the crude, treatment of the crude with a reagent that deactivates the ferric chloride followed by distillation on the deactivated crude stream, aqueous washing of the crude product stream to remove ferric chloride followed by distillation on the deactivated crude stream. Other embodiments simultaneously prepare 1,1,2,3-tetrachloroprene and 1,1,1,2,3-pentachloroprane.

摘要翻译： 从含有1,1,1,2,3-五氯丙烷和氯化铁的粗产物流中分离1,1,1,2,3-五氯丙烷的方法。 该方法可以包括对粗产物进行深蒸馏，用试剂灭活处理粗产物，然后在失活的粗制物流上进行蒸馏，然后对粗产物流进行水洗，以除去氯化铁，随后在失活的粗产物流 。 其它实施方案同时制备1,1,2,3-四氯丁二烯和1,1,1,2,3-五氯代。