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：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：US20230234903A1

公开(公告)日：2023-07-27

申请号：US18083238

申请日：2022-12-16

Applicant: Honeywell International Inc.

Inventor： Haiyou Wang ,  Gustavo Cerri ,  Jinhua Yao ,  Jennifer W. McClaine

IPC: C07C17/23 ,  B01J27/132 ,  C07C17/383

CPC classification number: C07C17/23 ,  B01J27/132 ,  C07C17/383

Abstract: The present disclosure provides a method for conversion of a mixture of high-boiling fluorinated components comprising 1,1,3,3-tetrachloro-1-fluoropropane (HCFC-241fa), 1,3,3-trichloro-1,1-difluoropropane (HCFC-242fa), 1,1,3-trichloro-1,3-difluoropropane (HCFC-242fb), 3,3-dichloro-1,1,1-trifluoropropane (HCFC-243fa), 1,3-dichloro-1,1,3-trifluoropropane (HCFC-243fb), 3-chloro-1,1,1,3-tetrafluoropropane (HCFC-244fa), their isomers, and combinations thereof, to 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd). Heavy impurities, such as oligomers and other high boiling impurities, that are present may be purged during the process to prevent yield loss and reduction of catalyst efficacy.

公开(公告)号：US11691935B2

公开(公告)日：2023-07-04

申请号：US17350664

申请日：2021-06-17

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tomoyuki Iwamoto ,  Takashi Usui ,  Takehiro Chaki ,  Tsubasa Nakaue ,  Kazuhiro Takahashi

IPC: C07C17/354 ,  C07C17/23 ,  B01J23/44 ,  C07C17/25

CPC classification number: C07C17/23 ,  B01J23/44 ,  C07C17/25 ,  C07C17/354 ,  C07C17/354 ,  C07C19/12

Abstract: The production method according to the present disclosure comprises obtaining a product containing the fluoroethane from a fluoroethylene by a reaction in the presence of catalysts. Each catalyst is formed by supporting a noble metal on a carrier. A reactor for performing the reaction is filled with a catalyst having a noble metal concentration of C1 mass % based on the entire catalyst and a catalyst having a noble metal concentration of C2 mass % based on the entire catalyst to form an upstream portion and a downstream portion, respectively; and C1

公开(公告)号：US20230174442A1

公开(公告)日：2023-06-08

申请号：US18071610

申请日：2022-11-29

Applicant: Honeywell International Inc.

Inventor： Haiyou Wang ,  Gustavo Cerri ,  Mitchel Cohn ,  Selma Bektesevic

IPC: C07C21/18 ,  C07C17/23 ,  C07C17/358 ,  C07C17/383

CPC classification number: C07C21/18 ,  C07C17/23 ,  C07C17/358 ,  C07C17/383

Abstract: The present disclosure provides high purity E-1,3,3,3-tetrafluoropropene (HFO-1234ze). More specifically, the present disclosure provides E-1,3,3,3-tetrafluoropropene (HFO-234ze) in at least 99.99% purity, containing less than 3 ppm 1,1,3,3,3-pentafluoropropene (HFO-1225zc). The present disclosure further provides a method of making high purity E-1,3,3,3-tetrafluoropropene (HFO-1234ze).

公开(公告)号：US09988327B2

公开(公告)日：2018-06-05

申请号：US15434882

申请日：2017-02-16

Applicant: ASAHI GLASS COMPANY, LIMITED

Inventor： Shinji Terazono ,  Xu Wang ,  Masahiro Kanda ,  Satoshi Kawaguchi ,  Mitsugu Kasagawa

IPC: C07C17/23 ,  C07C17/354 ,  C07C21/18

CPC classification number: C07C17/23 ,  C07B61/00 ,  C07C17/354 ,  C07C21/18

Abstract: A method for producing a hydrofluoroolefin is provided. The formation of by-products of an over-reduced product having hydrogen added to a material chlorofluoroolefin and an over-reduced product having not only chlorine atoms but also fluorine atoms in the chlorofluoroolefin replaced with hydrogen atoms is suppressed in the method. The method includes reacting a specific chlorofluoroolefin with hydrogen in the presence of a catalyst supported on a carrier to obtain the hydrofluoroolefin. The catalyst is a catalyst composed of an alloy containing at least one platinum group element of palladium and platinum, and at least one second element of manganese, copper, aluminum, gold, lithium, sodium, potassium, magnesium, silver, zinc, cadmium, indium, silicon, germanium, tin, lead, arsenic, antimony, and bismuth.

公开(公告)号：US20180134639A1

公开(公告)日：2018-05-17

申请号：US15856999

申请日：2017-12-28

Applicant: ASAHI GLASS COMPANY, LIMITED

Inventor： Yu Takeuchi ,  Hidekazu Okamoto

IPC: C07C17/358 ,  C07C17/23 ,  B01J23/26 ,  B01J21/04 ,  B01J27/125 ,  B01J23/06 ,  B01J23/44 ,  B01J27/128 ,  B01J27/122 ,  B01J37/08

CPC classification number: C07C17/358 ,  B01J21/04 ,  B01J21/06 ,  B01J23/06 ,  B01J23/26 ,  B01J23/44 ,  B01J27/122 ,  B01J27/125 ,  B01J27/128 ,  B01J37/08 ,  C07B61/00 ,  C07C17/23 ,  C07C21/18

Abstract: There is provided an industrially advantageous and efficient method of producing a Z-isomer of HCFO-1224yd or HCFO-1223xd by isomerizing an E-isomer thereof. The method produces HCFO (Z-isomer) by causing specific HCFO (E-isomer) contained in a raw material composition to undergo an isomerization reaction under a condition where the HCFO (E-isomer) is isomerized.

公开(公告)号：US09902672B2

公开(公告)日：2018-02-27

申请号：US15425283

申请日：2017-02-06

Applicant: ASAHI GLASS COMPANY, LIMITED

Inventor： Xu Wang ,  Shinji Terazono ,  Masahiro Kanda ,  Satoshi Kawaguchi ,  Mitsugu Kasagawa

IPC: C07C17/23 ,  C07C17/354 ,  C07C21/18 ,  B01J23/46 ,  B01J23/44 ,  B01J23/72 ,  B01J23/40 ,  B01J23/42 ,  B01J23/50 ,  B01J23/48 ,  B01J23/52 ,  C07B61/00

CPC classification number: C07C17/23 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/462 ,  B01J23/464 ,  B01J23/468 ,  B01J23/48 ,  B01J23/50 ,  B01J23/52 ,  B01J23/72 ,  C07B61/00 ,  C07C17/354 ,  C07C21/18

Abstract: A hydrofluoroolefin is produced by reacting a chlorofluoroolefin with hydrogen in the presence of a platinum group metal catalyst supported on a carbon carrier to obtain a hydrofluoroolefin. The chlorofluoroolefin is represented by formula (1): CZX═CClY, where X is F or Cl, Y is F, Cl or H, and Z is F or CF3. The hydrofluoroolefin is represented by formula (2): CZX′ ═CHY′, where X′ is F when X is F, or X′ is H when X is Cl, Y′ is F when Y is F, or Y′ is H when Y is Cl or H, and Z is the same as Z in the formula (1). The carbon carrier has acidic functional groups, and the total acidic functional group amount in the carbon carrier is at most 50 μmol/g.

公开(公告)号：US09862661B2

公开(公告)日：2018-01-09

申请号：US15535300

申请日：2015-02-05

Applicant: XI'AN MODERN CHEMISTRY RESEARCH INSTITUTE

Inventor： Jian Lv ,  Hui Ma ,  Jijun Zeng ,  Wei Zhang ,  Zhijun Hao ,  Sheng Han ,  Yongmei Du ,  Jianping Kang ,  Chunying Li ,  Fengxian Li

IPC: C07C17/23 ,  C07C17/25 ,  C07C17/093 ,  C07C21/18 ,  B01J23/883 ,  C07C17/383 ,  B01J23/89 ,  B01J27/138 ,  B01J35/00 ,  C07C17/20 ,  C07C19/08

CPC classification number: C07C17/23 ,  B01J23/002 ,  B01J23/8892 ,  B01J23/8906 ,  B01J23/894 ,  B01J23/8986 ,  B01J27/138 ,  B01J27/32 ,  B01J35/0006 ,  B01J37/031 ,  B01J37/04 ,  B01J37/26 ,  B01J38/12 ,  B01J2523/00 ,  C07C17/206 ,  C07C17/25 ,  C07C17/383 ,  C07C19/08 ,  C07C21/18 ,  C07C19/10 ,  B01J2523/23 ,  B01J2523/48 ,  B01J2523/72 ,  B01J2523/847 ,  B01J2523/17 ,  B01J2523/22 ,  B01J2523/55 ,  B01J2523/3706 ,  B01J2523/842 ,  B01J2523/36 ,  B01J2523/845 ,  B01J2523/25

Abstract: Disclosed is a process for the preparation of 2,3,3,3-tetrafluoropropene, comprising the following two reaction steps: a. a compound having the formula CF3-xClxCF2-yClyCH2Cl undergoes gas-phase fluorination with hydrogen fluoride through n serially-connected reaction vessels in the presence of a compound catalyst, producing 2,3-dichloro-1,1,1,2-tetrafluoropropane, 1,2,3-trichloro-1,1,2-trifluoropropane, and 1,3-dichloro-1,1,2,2-tetrafluoropropane; in said formula, x=1, 2, 3, y=1, 2, and 3≦x+y≦5; b. the 2,3-dichloro-1,1,1,2-tetrafluoropropane, 1,2,3-trichloro-1,1,2-trifluoropropane, and 1,3-dichloro-1,1,2,2-tetrafluoropropane undergo gas-phase dehalogenation with hydrogen in the presence of a dehalogenation catalyst, producing 2,3,3,3-tetrafluoropropene and 3-chloro-2,3,3-trifluoropropene, then separation and refining are performed, producing 2,3,3,3-tetrafluoropropene. The present invention is primarily used to produce 2,3,3,3-tetrafluoropropene.

公开(公告)号：US20170327441A1

公开(公告)日：2017-11-16

申请号：US15535300

申请日：2015-02-05

Applicant: XI'AN MODERN CHEMISTRY RESEARCH INSTITUTE

Inventor： Jian LV ,  Hui MA ,  Jijun ZENG ,  Wei ZHANG ,  Zhijun HAO ,  Sheng HAN ,  Yongmei DU ,  Jianping KANG ,  Chunying LI ,  Fengxian LI

IPC: C07C17/23 ,  C07C19/08 ,  C07C17/383 ,  C07C17/25 ,  C07C17/20 ,  B01J35/00 ,  B01J27/138 ,  B01J23/89 ,  C07C21/18

CPC classification number: C07C17/23 ,  B01J23/002 ,  B01J23/8892 ,  B01J23/8906 ,  B01J23/894 ,  B01J23/8986 ,  B01J27/138 ,  B01J27/32 ,  B01J35/0006 ,  B01J37/031 ,  B01J37/04 ,  B01J37/26 ,  B01J38/12 ,  B01J2523/00 ,  C07C17/206 ,  C07C17/25 ,  C07C17/383 ,  C07C19/08 ,  C07C21/18 ,  C07C19/10 ,  B01J2523/23 ,  B01J2523/48 ,  B01J2523/72 ,  B01J2523/847 ,  B01J2523/17 ,  B01J2523/22 ,  B01J2523/55 ,  B01J2523/3706 ,  B01J2523/842 ,  B01J2523/36 ,  B01J2523/845 ,  B01J2523/25

Abstract: Disclosed is a process for the preparation of 2,3,3,3-tetrafluoropropene, comprising the following two reaction steps: a. a compound having the formula CF3-xClxCF2-yClyCH2Cl undergoes gas-phase fluorination with hydrogen fluoride through n serially-connected reaction vessels in the presence of a compound catalyst producing 2,3-dichloro-1,1,1,2-tetrafluoropropane, 1,2,3-trichloro-1,1,2-trifluoropropane, and 1,3-dichloro-1,1,2,2-tetrafluoropropane; in said formula, x=1, 2, 3, y=1, 2, and 3≦x+y≦5; b. the 2,3-dichloro-1,1,1,2-tetrafluoropropane, 1,2,3-trichloro-1,1,2-trifluoropropane, and 1,3-dichloro-1,1,2,2-tetrafluoropropane undergo gas-phase dehalogenation with hydrogen in the presence of a dehalogenation catalyst, producing 2,3,3,3-tetrafluoropropene and 3-chloro-2,3,3-trifluoropropene, then separation and refining are performed, producing 2,3,3,3-tetrafluoropropene. The present invention is primarily used to produce 2,3,3,3-tetrafluoropropene.