公开(公告)号：US20250145551A1

公开(公告)日：2025-05-08

申请号：US18836840

申请日：2023-02-24

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： XUEHUI SUN ,  DREW RICHARD BRANDT ,  ROBERT DANIEL LOUSENBERG ,  BARBARA HAVILAND MINOR

IPC: C07C17/20

Abstract: In an embodiment, a method of producing a fluoroolefin comprises coupling 3,3-dichloro-1,1,1,2,2-pentafluoropropane (CF3—CF2—CHCl2) in a liquid phase in the presence of a catalyst to form a composition comprising 1,1,1,2,2,5,5,6,6,6-decafluoro-3-hexene (CF3CF2CH═CHCF2CF3). In another embodiment, a method of producing a fluoroolefin comprises coupling 1,1,1-trichloropentafluoropropane (CF3—CF2—CCl3) in a vapor phase in the presence of a first catalyst to form a composition comprising 3,4-dichloro-1,1,1,2,2,5,5,6,6,6-decafluoro-3-hexene (CF3—CF2—CCl═CCl—CF2—CF3). The method may further include forming the CF3—CF2—CCl3 in a vapor phase from CF3CF2CHmCl3-m and chlorine (Cl2). The method may further include hydrodechlorinating the 3,4-dichloro-1,1,1,2,2,5,5,6,6,6-decafluoro-3-hexene with hydrogen (H2) in a vapor phase in the presence of a second catalyst to form a composition comprising CF3CF2CH═CHCF2CF3 and 3-chloro-1,1,1,2,2,5,5,6,6,6-decafluoro-3-hexene (CF3CF2CCl═CHCF2CF3).

公开(公告)号：US20230406790A1

公开(公告)日：2023-12-21

申请号：US18239602

申请日：2023-08-29

Applicant: THE CHEMOURS COMPANY FC, LLC.

Inventor： XUEHUI SUN ,  KARL ROBERT KRAUSE

IPC: C07C17/25 ,  C07C21/18

CPC classification number: C07C17/25 ,  C07C21/18 ,  B01J27/10

Abstract: The present application provides a process of preparing 3,3,3-trifluoroprop-1-ene, comprising reacting 3-chloro-1,1,1-trifluoropropane with a base in an aqueous solvent component in the absence of a phase transfer catalyst.

公开(公告)号：US20220402842A1

公开(公告)日：2022-12-22

申请号：US17888628

申请日：2022-08-16

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： XUEHUI SUN ,  Karl Robert KRAUSE

IPC: C07C17/25 ,  C07C21/18

Abstract: The present application provides a process of preparing 3,3,3-trifluoroprop-1-ene, comprising reacting 3-chloro-1,1,1-trifluoropropane with a base in an aqueous solvent component in the absence of a phase transfer catalyst.

公开(公告)号：US20250074847A1

公开(公告)日：2025-03-06

申请号：US18948676

申请日：2024-11-15

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： XUEHUI SUN

IPC: C07C17/04 ,  C07C17/20 ,  C07C17/23 ,  C07C17/389 ,  C07C21/18

Abstract: A method of synthesizing 2,3,3,3-tetrafluoropropene (1234yf) from 2-chloro-3,3,3-trifluoropropene (1233xf). The 2-chloro-3,3,3-trifluoropropene (1233xf) is reacted in the vapor phase, in the presence of a catalyst, at a temperature and pressure sufficient to selectively convert the 2-chloro-3,3,3-trifluoropropene (1233xf) to 2,3,3,3-tetrafluoropropene (1234yf) without the use of antimony-based catalysts.

公开(公告)号：US20230061454A1

公开(公告)日：2023-03-02

申请号：US17797578

申请日：2021-02-05

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： XUEHUI SUN ,  KARL ROBERT KRAUSE

IPC: C09K5/04

Abstract: Disclosed are compositions comprising HCFC-244bb and/or HFO-1234yf and at least one additional compound. Compositions comprising HCFC-244bb 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：US20230002658A1

公开(公告)日：2023-01-05

申请号：US17784738

申请日：2020-12-17

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： MARY E KOBAN ,  LUKE DAVID SIMONI ,  XUEHUI SUN ,  KARL ROBERT KRAUSE

IPC: C09K5/04 ,  F25B41/24 ,  C10M171/00

Abstract: Environmentally friendly refrigerant blends utilizing blends including 2,3,3,3-tetrafluoropropene (HFO-1234yf) and fluoroethane (HFC-161). The blends have ultra-low GWP, low toxicity, and low flammability with low temperature glide or nearly negligible glide for use in a hybrid, mild hybrid, plug-in hybrid, or full electric vehicles for thermal management (transferring heat from one part of the vehicle to the other) of the passenger compartment providing air conditioning (A/C) or heating to the passenger cabin.

公开(公告)号：US20220234971A1

公开(公告)日：2022-07-28

申请号：US17722504

申请日：2022-04-18

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： XUEHUI SUN

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

Abstract: 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：US20250091972A1

公开(公告)日：2025-03-20

申请号：US18961999

申请日：2024-11-27

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： XUEHUI SUN

IPC: C07C17/20 ,  C08J9/14 ,  C09K3/30 ,  C09K5/04 ,  C11D7/30 ,  C11D7/50

Abstract: A method of making chlorofluorohydrocarbons including, contacting, a fluorinated hydrocarbon reagent in the vapor phase, with hydrogen chloride (HCl). The reaction is conducted in the presence of an effective amount of a catalyst, at an elevated temperature sufficient to effect hydrochlorination to form a reaction mixture including a chlorofluorohydrocarbon.

公开(公告)号：US20210317055A1

公开(公告)日：2021-10-14

申请号：US17261043

申请日：2019-07-18

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： KARL R. KRAUSE ,  CONCETTA LA MARCA ,  MARIO JOSEPH NAPPA ,  XUEHUI SUN

IPC: C07C17/25 ,  B01J19/00 ,  B01J19/24

Abstract: A process for producing at least one haloolefin by dehydrohalogenating a hydrohaloalkane. The dehydrohalogenation process is performed in the liquid phase or vapor phase in the presence or absence of a catalyst at a temperature sufficient to effect conversion of the hydrohaloalkane to a haloolefin (haloalkene) in an adiabatic reaction zone. In particular, the adiabatic reaction zone comprises at least two serially-connected adiabatic reactors and having a heat exchanger disposed in sequence and in fluid communication between each two reactors in series.

公开(公告)号：US20210147324A1

公开(公告)日：2021-05-20

申请号：US17094894

申请日：2020-11-11

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： XUEHUI SUN

IPC: C07C17/389 ,  C07C17/23

Abstract: A method of separating 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113) and 1,1,1-trichloro-2,2,2-trifluoroethane (CFC-113a) includes providing an untreated composition including 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113) and 1,1,1-trichloro-2,2,2-trifluoroethane (CFC-113a). The untreated composition is treated with an adsorbent to form a treated composition in which the concentration of 1,1,1-trichloro-2,2,2-trifluoroethane (CFC-113a) is less than 93 percent of the concentration of the 1,1,1-trichloro-2,2,2-trifluoroethane (CFC-113a) in the untreated composition based on a treatment time of 24 hours.