公开(公告)号：US20240076536A1

公开(公告)日：2024-03-07

申请号：US18506244

申请日：2023-11-10

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： VELLIYUR NOTT MALLIKARJUNA RAO ,  MARIO JOSEPH NAPPA ,  ALLEN CAPRON SIEVERT

IPC: C09K5/04 ,  C07C17/00 ,  C07C17/087 ,  C07C17/20 ,  C07C17/23 ,  C07C17/354 ,  C07C19/08 ,  C07C19/10

CPC classification number: C09K5/045 ,  C07C17/00 ,  C07C17/087 ,  C07C17/206 ,  C07C17/23 ,  C07C17/354 ,  C07C19/08 ,  C07C19/10

Abstract: A process is disclosed for making CF3CF═CHF. The process involves reacting CF3CClFCCl2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF═CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of H2 to CF3CClFCCl2F fed to the reaction zone is between about 1:1 and about 5:1. Also disclosed are azeotropic compositions of CF3CClFCCl2F and HF and azeotropic composition of CF3CHFCH2F and HF.

公开(公告)号：US11913681B2

公开(公告)日：2024-02-27

申请号：US18220777

申请日：2023-07-11

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Sheng Peng ,  Mario Joseph Nappa

IPC: C07C21/18 ,  F25B13/00 ,  C07C17/357 ,  C07C19/08

CPC classification number: F25B13/00 ,  C07C17/357 ,  C07C19/08 ,  C07C21/18

Abstract: A fluoropropene composition comprising Z-1,3,3,3-tetrafluoropropene, E-1,3,3,3-tetrafluoropropene, 1,1,3,3,3-pentafluoropropene, 2,3,3,3-tetrafluoropropene, and optionally 1,1,1,3,3-pentafluoropropane wherein the 2,3,3,3-tetrafluoropropene being present in an amount of 0.00001 to 1.0%. A method of producing the fluoropropene, methods for using the fluoropropene and the composition formed are also disclosed.

公开(公告)号：US11912641B2

公开(公告)日：2024-02-27

申请号：US17893504

申请日：2022-08-23

Applicant: Honeywell International Inc.

Inventor： Haiyou Wang ,  Daniel C. Merkel

IPC: C07C51/47 ,  C07C17/389 ,  C07C17/18

CPC classification number: C07C17/389 ,  C07C17/18 ,  C07C51/47 ,  C07C51/47 ,  C07C53/48 ,  C07C17/389 ,  C07C19/08 ,  C07C17/389 ,  C07C19/16 ,  C07C17/18 ,  C07C19/16

Abstract: A method of producing trifluoroiodomethane (CF3I) includes providing a feedstock comprising trifluoroacetyl iodide (TFAI), passing the feedstock through at least one column charged with carbonaceous materials to remove hydrogen iodide (HI), hydrogen triiodide (HI3) and iodine (I2) from the feedstock, and providing the feedstock to a reactor to produce a trifluoroiodomethane product stream.
Another method of producing trifluoroiodomethane (CF3I) includes providing a feedstock comprising trifluoroacetyl iodide (TFAI) to a reactor to produce a trifluoroiodomethane product stream, and passing the trifluoroiodomethane product stream from the reactor through at least one column charged with carbonaceous materials to remove hydrogen iodide (HI), hydrogen triiodide (HI3) and iodine (I2) from the trifluoroiodomethane product stream.

公开(公告)号：US20230331647A1

公开(公告)日：2023-10-19

申请号：US18212281

申请日：2023-06-21

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yuuko OHHIGASHI ,  Tatsuya TAKAKUWA ,  Kazuhiro TAKAHASHI

IPC: C07C17/383 ,  C07C19/08 ,  C09K5/04

CPC classification number: C07C17/383 ,  C07C19/08 ,  C09K5/04

Abstract: An object of the present invention is to provide a method that can efficiently remove water contained in pentafluoropropane. Provided as a solution is a method comprising distilling a composition comprising pentafluoropropane and water to thereby extract pentafluoropropane with a water content higher than that of the composition as a first stream, and pentafluoropropane with a water content lower than that of the composition as a second stream.

公开(公告)号：US20230250326A1

公开(公告)日：2023-08-10

申请号：US18134361

申请日：2023-04-13

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： BARRY ASHER MAHLER ,  MARIO JOSEPH NAPPA

IPC: C09K5/04 ,  C07C17/04 ,  C07C17/087 ,  C07C17/20 ,  C07C17/25 ,  C07C19/08 ,  C07C19/10 ,  C07C19/12 ,  C07C21/04 ,  C07C21/18 ,  C08J9/14 ,  C09K3/30 ,  C09K23/00 ,  A62D1/00 ,  C09K3/00 ,  C11D7/30 ,  H01B3/56 ,  C07C17/23 ,  C09K21/08

CPC classification number: C09K5/044 ,  C07C17/04 ,  C07C17/087 ,  C07C17/204 ,  C07C17/206 ,  C07C17/25 ,  C07C19/08 ,  C07C19/10 ,  C07C19/12 ,  C07C21/04 ,  C07C21/18 ,  C08J9/144 ,  C08J9/149 ,  C09K3/30 ,  C09K23/007 ,  C09K23/017 ,  C09K5/045 ,  A62D1/0028 ,  A62D1/0092 ,  C09K3/00 ,  C09K5/048 ,  C11D7/30 ,  H01B3/56 ,  A62D1/0057 ,  C07C17/23 ,  C08J9/146 ,  C09K21/08 ,  C08J2203/14 ,  C08J2203/142 ,  C09K2205/12 ,  C09K2205/122 ,  C09K2205/126 ,  C08J2203/144 ,  C08J2203/164 ,  C09K2205/22

Abstract: Disclosed are compositions comprising HCFC-243db, HCFO-1233xf, HCFC-244db and/or HFO-1234yf and at least one additional compound. For the composition comprising 1234yf, the additional compound is selected from the group consisting of HFO-1234ze, HFO-1243zf, HCFC-243db, HCFC-244db, HFC-245cb, HFC-245fa, HCFO-1233xf, HCFO-1233zd, HCFC-253fb, HCFC-234ab, HCFC-243fa, ethylene, HFC-23, CFC-13, HFC-143a, HFC-152a, HFC-236fa, HCO-1130, HCO-1130a, HFO-1336, HCFC-133a, HCFC-254fb, CHF═CHCl, HFO-1141, HCFO-1242zf, HCFO-1223xd, HCFC-233ab, HCFC-226ba, and HFC-227ca. Compositions comprising HCFC-243db, HCFO-1233xf, and/or HCFC-244db are useful in processes to make HFO-1234yf. Compositions comprising HFO-1234yf are useful, among other uses, as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.

公开(公告)号：US20180370880A1

公开(公告)日：2018-12-27

申请号：US16063301

申请日：2016-12-14

Applicant: Arkema France

Inventor： Abdelatif BABA-AHMED ,  Bertrand COLLIER ,  Dominique DEUR-BERT ,  Irène EMERY ,  Laurent WENDLINGER

IPC: C07C17/386 ,  C07C17/25

CPC classification number: C07C17/386 ,  C07C17/25 ,  C07C19/08 ,  C07C21/18 ,  C09K5/045 ,  C09K2205/126

Abstract: The invention relates to a method for purifying 2,3,3,3-tetrafluoro-1-propene (1234yf) using a first composition comprising 2,3,3,3-tetrafluoro-1-propene, 1,1,1,2,2-pentafluoropropane (245cb) 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 distillation of said second composition in order to form a third composition comprising said organic extraction agent and trans-1,3,3,3-tetrafluoro-I-propene (I234ze-E), and a stream comprising the 2,3,3,3-tetrafluoro-I-propene and the 1,1,1,2,2-pentafluoropropane (245cb); and (c) recovery and separation of said third composition in order to form a stream comprising said organic extraction agent and a stream comprising the trans-1,3,3,3-tetrafluoro-I-propene (1234ze-E). The invention also relates to a method for producing 2,3,3,3-tetrafluoro-I-propene.

公开(公告)号：US10035743B1

公开(公告)日：2018-07-31

申请号：US15797015

申请日：2017-10-30

Applicant: Honeywell International inc.

Inventor： Haridasan K. Nair ,  Rajiv Ratna Singh

IPC: C07C17/087 ,  C07C17/20 ,  C07C21/18 ,  B01J27/128 ,  C07C19/08 ,  B01J27/10 ,  C07C17/25

CPC classification number: C07C17/087 ,  B01J27/10 ,  B01J27/128 ,  C07C17/206 ,  C07C17/208 ,  C07C17/25 ,  C07C19/08 ,  C07C21/18

Abstract: A method for converting 1, 3, 3, 3-tetrafluoropropene (HFO-1234ze) to 1-chloro-3, 3, 3-trifluoropropene (HCFC-1233zd) with high selectivity and without significant formation of 1, 1, 1, 3, 3-pentafluoropropane (HFC-245fa), by reacting 1234ze and hydrogen chloride (HCl) in a gas phase using a ferric chloride (FeCl3) catalyst or a ruthenium chloride (RuCl3) catalyst.

公开(公告)号：US10011546B2

公开(公告)日：2018-07-03

申请号：US15095247

申请日：2016-04-11

Applicant: Honeywell International Inc.

Inventor： Daniel C. Merkel ,  Hsueh Sung Tung ,  Konstantin A. Pokrovski ,  Haiyou Wang ,  Stephen A. Cottrell ,  Hang T. Pham

IPC: C07C17/08 ,  C07C19/08 ,  C07C21/04 ,  C07C21/18 ,  C09K3/00

CPC classification number: C07C19/08 ,  C07C21/04 ,  C07C21/18 ,  C09K3/00

Abstract: Provided are azeotropic or azeotrope-like mixtures of 1,1,3,3-tetrachloroprop-1-ene (HCO-1230za) and hydrogen fluoride. Such compositions are useful as feed stock in the production of HFC-245fa and HCFO-1233zd.

公开(公告)号：US09988328B2

公开(公告)日：2018-06-05

申请号：US15520876

申请日：2015-10-22

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yuusuke Etou ,  Shingo Nakamura

IPC: C07C19/08 ,  C07C43/12 ,  B01J27/12 ,  B01J21/04 ,  B01J23/26 ,  B01J23/06 ,  B01J21/06

CPC classification number: C07C19/08 ,  B01J21/04 ,  B01J21/063 ,  B01J23/06 ,  B01J23/26 ,  B01J27/12 ,  B01J35/1042 ,  C07C17/361 ,  C07C43/12

Abstract: An object of the present invention is to extend the catalyst lifetime in a method for producing fluoromethane by pyrolyzing fluorine-containing methyl ether in the presence of a catalyst. The present invention provides a method for producing fluoromethane by pyrolyzing a fluorine-containing methyl ether represented by Formula (1) in a gas phase in the presence of a catalyst, the pyrolysis being conducted at a moisture concentration of 100 ppm or less, wherein R1 and R2 are identical or different, and each represents a substituted or unsubstituted straight or branched monovalent aliphatic hydrocarbon group, substituted or unsubstituted monovalent aromatic hydrocarbon group, substituted or unsubstituted monovalent cyclic aliphatic hydrocarbon group, hydrogen atom, or halogen atom.

公开(公告)号：US09957210B2

公开(公告)日：2018-05-01

申请号：US14876090

申请日：2015-10-06

Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.

Inventor： John W. Smith ,  Claire McGuinness ,  Andrew P. Sharratt ,  Andrew M. Taylor

IPC: C07C17/25 ,  C07C17/354 ,  C07C21/18

CPC classification number: C07C17/25 ,  C07C17/354 ,  C07C21/18 ,  C07C19/08

Abstract: The invention provides a process for the preparation of 1234yf comprising (a) contacting 1,1,2,3,3,3-hexafluoropropene (1216) with hydrogen in the presence of a hydrogenation catalyst to produce 1,1,2,3,3,3-hexafluoropropane (236ea); (b) dehydrofluorinating 236ea to produce 1,2,3,3,3-pentafluoropropene (1225ye); (c) contacting 1225ye with hydrogen in the presence of a hydrogenation catalyst to produce 1,2,3,3,3-pentafluoropropane (245eb); and (d) dehydrofluorinating 245eb to produce 1234yf.