公开(公告)号：US12091607B2

公开(公告)日：2024-09-17

申请号：US18134361

申请日：2023-04-13

申请人： THE CHEMOURS COMPANY FC, LLC

发明人： Barry Asher Mahler ,  Mario Joseph Nappa

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

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

摘要： 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：US12005431B2

公开(公告)日：2024-06-11

申请号：US18038531

申请日：2021-11-29

申请人： ZHEJIANG QUHUA FLUOR-CHEMISTRY CO., Ltd. ,  Beijing University of Chemical Technology ,  Juhua Group Co., Ltd

发明人： Liangliang Zhang ,  Liyang Zhou ,  Guangwen Chu ,  Jihong Tong ,  Jianfeng Chen ,  Jiangyong Hong ,  Bo Yang

IPC分类号： B01J8/10 ,  C07C17/25

CPC分类号： B01J8/10 ,  C07C17/25

摘要： A reaction apparatus used for a continuous reaction process for the preparation of trifluoroethane includes a housing, a rotary cutting component, a submersible pump and a flow deflector. The flow deflector includes two sets of flow-deflecting plates, each set of said flow-deflecting plates including a plurality of flow-deflecting plates. Two sets of flow-deflecting plates are fixed to each of the two opposing side walls, and the two adjacent flow-deflecting plates are in offset alignment. The submersible pump is arranged inside the reaction chamber body. A liquid inlet line can connect a directly to the submersible pump without requiring the arrangement of an additional pipeline.

公开(公告)号：US11820722B2

公开(公告)日：2023-11-21

申请号：US17607096

申请日：2020-04-22

申请人： THYSSENKRUPP AG ,  THYSSENKRUPP INDUSTRIAL SOLUTIONS AG ,  VINNOLIT GMBH & CO. KG

发明人： Michael Benje ,  Peter Kammerhofer ,  Klaus Krejci

IPC分类号： C07C17/25 ,  B01J19/00

CPC分类号： C07C17/25 ,  B01J19/0013 ,  B01J2219/00132 ,  B01J2219/00157

摘要： The present invention relates to a method for preparing vinyl chloride by catalytic thermal cracking of 1,2-dichloroethane, in which method the heat required for the thermal cracking is supplied via a liquid or condensing heat transfer medium. The present invention also relates to a plant for preparing vinyl chloride by catalytic thermal cracking of 1,2-dichloroethane, in which the heat required for the thermal cracking, as well as for the preceding preheating, evaporation and optionally overheating of the 1,2-dichloroethane, is supplied via a liquid or condensing heat transfer medium, said plant comprising at least one reactor in which the thermal cracking takes place and at least one first heating device by means of which heat is transported to the reaction medium in the reactor by means of the liquid or condensing heat transfer medium.

公开(公告)号：US20230312442A1

公开(公告)日：2023-10-05

申请号：US17757859

申请日：2020-08-13

申请人： Kureha Corporation

发明人： Kensuke SUZUKI ,  Katsumi YOSHIDA ,  Hiraku TOHMIYA

IPC分类号： C07C17/25

CPC分类号： C07C17/25

摘要： An object of the present invention is to provide a method of producing an alkene using a solvent that has little decrease in production rate over time and is easy to recover and recycle.
The method of producing an alkene, which solves the problem, includes: a step of contacting a solution containing an alcohol having three or more carbon atoms and a hydroxide of an alkali metal and/or an alkaline earth metal with a halogenated alkane.

公开(公告)号：US11760707B2

公开(公告)日：2023-09-19

申请号：US17095777

申请日：2020-11-12

申请人： Fujian Yongjing Technology Co., Ltd

发明人： Changyue Zhou ,  Yong Wang

IPC分类号： C07C17/281 ,  C07C17/25 ,  B01J23/26 ,  B01J27/12 ,  B01J31/02 ,  C07C17/269

CPC分类号： C07C17/281 ,  B01J23/26 ,  B01J27/12 ,  B01J31/0239 ,  C07C17/25 ,  C07C17/269 ,  B01J2531/985 ,  C07C2523/745 ,  C07C2523/843 ,  C07C2523/86 ,  C07C17/269 ,  C07C19/10 ,  C07C17/25 ,  C07C21/18 ,  C07C17/269 ,  C07C21/18

摘要： The present invention pertains to a novel process of manufacturing the compound 2,3,3,3-tetrafluoropropene (1234yf). The compound 1234yf is the newest refrigerant with zero OPD (Ozone Depleting Potential) and zero GWP (Global Warming Potential). Thus, the invention relates to a process, involving a carbene generation route, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), and optionally of the compound 2-chloro-1,1,1-trifluoropropene (1233xf) via carbene route and compound 243db (2,3-dichloro-1,1,1-trifluoropropane). The invention also relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), wherein the compound 243db (2,3-dichloro-1,1,1-trifluoropropane) serves as a starting material, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf). Further, the invention relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), and of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), the initial starting materials are selected from the group consisting of com-pound 123 (2,2-dichloro-1,1,1-trifluoroethane), compound 124 (2-chloro-1,1,1,2-tetrafluoroethane), and compound 125 (pentafluoroethane).

公开(公告)号：US11512239B2

公开(公告)日：2022-11-29

申请号：US17697979

申请日：2022-03-18

申请人： THE CHEMOURS COMPANY FC, LLC

发明人： Barry Asher Mahler ,  Mario Joseph Nappa

IPC分类号： 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

摘要： 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：US11505517B2

公开(公告)日：2022-11-22

申请号：US17516791

申请日：2021-11-02

申请人： Arkema France

发明人： Pierre-Marie Sedat ,  Collier Bertrand

IPC分类号： C07C21/18 ,  C07C17/354 ,  C07C19/08 ,  C07C17/25 ,  C07C17/383

摘要： The present invention relates to a process for purifying 1,1,1,2,3-pentafluoropropane, comprising the steps of: i) providing a composition A1 comprising 1,1,1,2,3-pentafluoropropane and 1,1,1,3-tetrafluoropropane; ii) purifying, preferably distilling, said composition A1 under conditions that are sufficient to form at least two streams including a first stream comprising 1,1,1,2,3-pentafluoropropane and a second stream comprising 1,1,1,3-tetrafluoropropane. The present invention also relates to a process for producing 2,3,3,3-tetrafluoropropene and a composition comprising 2,3,3,3-tetrafluoropropene.

公开(公告)号：US20220234971A1

公开(公告)日：2022-07-28

申请号：US17722504

申请日：2022-04-18

申请人： THE CHEMOURS COMPANY FC, LLC

发明人： XUEHUI SUN

IPC分类号： C07C17/354 ,  C07C17/23 ,  C07C21/18 ,  C07C19/10 ,  C07C19/08 ,  C07C17/25

摘要： A process is provided comprising contacting and reacting the compound CF3CF2CHXC, wherein X is H or Cl, or the compound CF3CF=CXCl, wherein X is H or Cl, with hydrogen in the presence of a catalyst consisting essentially of Cu, Ru, Cu—Pd, Ni—Cu, and Ni—Pd, to obtain as a result thereof reaction product comprising hydrofluoropropenes or intermediates convertible to said hydrofluoropropenes, notably CF3CF=CH2 and CF3CH=CHF.

公开(公告)号：US11358919B2

公开(公告)日：2022-06-14

申请号：US17018457

申请日：2020-09-11

申请人： Mexichem Fluor S.A. de C.V.

发明人： Andrew Paul Sharratt

IPC分类号： C07C17/087 ,  C07C17/20 ,  C07C17/25 ,  C07C17/38 ,  C07C17/395 ,  C07C21/18 ,  C07C19/08

摘要： The invention relates to a process comprising contacting a composition comprising a (hydro)halocarbon and a compound of formula Rf—C≡CX with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of Rf—C≡CX, wherein Rf is a perfluorinated alkyl group and X is H, F, Cl, Br, or I. The invention further relates to process for preparing a (hydro)halocarbon comprising (i) converting a starting material, optionally in the presence of HF and/or a catalyst, to a composition comprising the (hydro)halocarbon and a compound of formula Rf—C≡CX, wherein Rf is a perfluorinated alkyl group and X is H, F, Cl, Br, or I; (ii) contacting the composition with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of the compound of formula Rf—C≡CX; and (iii) recovering the (hydro)halocarbon.

公开(公告)号：US11236030B2

公开(公告)日：2022-02-01

申请号：US17052389

申请日：2019-04-22

申请人： DAIKIN INDUSTRIES, LTD.

发明人： Takashi Usui ,  Tsubasa Nakaue ,  Takehiro Chaki ,  Yuzo Komatsu

IPC分类号： C07C17/25 ,  B01J21/04 ,  B01J23/26 ,  B01J35/10 ,  B01J37/08 ,  B01J37/26

摘要： The present disclosure provides a method for producing fluoroolefin represented by formula (1): CX1X2═CX3X4, wherein X1, X2, X3, and X4 are the same or different, and represent a hydrogen atom or a fluorine atom, with high selectivity. Specifically, the present disclosure is a method for producing a fluoroolefin represented by formula (1) described above, the method comprising a dehydrofluorination step of bringing a fluorocarbon represented by formula (2): CX1X2FCX3X4H, wherein X1, X2, X3, and X4 are as defined above, into contact with a metal catalyst to perform dehydrofluorination, the dehydrofluorination step being performed in the gas phase in the presence of water, the concentration of the water being less than 500 ppm relative to the fluorocarbon represented by formula (2).