公开(公告)号：US20190284117A1

公开(公告)日：2019-09-19

申请号：US16423352

申请日：2019-05-28

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Xuehui SUN ,  Mario Joseph NAPPA ,  Karl KRAUSE

IPC: C07C17/087 ,  C07C19/10 ,  C07C17/20

Abstract: The disclosure relates to a method for hydrofluorination of an olefin of the formula: RCX═CYZ to produce a hydrofluoroalkane of formula RCXFCHYZ or RCXHCFYZ, wherein X, Y, and Z are independently the same or different and are selected from the group consisting of H, F, Cl, Br, and C1-C6 alkyl which is partially or fully substituted with chloro or fluoro or bromo; and R is a C1-C6 alkyl which is unsubstituted or substituted with chloro or fluoro or bromo, comprising reacting the olefin with HF in the liquid-phase, in the presence of SbF5, at a temperature ranging from about −30° C. to about 65° C. and compositions formed by the process.

公开(公告)号：US20240025824A1

公开(公告)日：2024-01-25

申请号：US18479882

申请日：2023-10-03

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Xuehui SUN ,  Karl KRAUSE

IPC: C07C17/25

CPC classification number: C07C17/25 ,  C07C21/18

Abstract: A dehydrohalogenation product includes a hydrochlorofluorocarbon mixture of a fluoroolefin of formula RCX=CZQ and a halofluoroalkane of formula RCXYCZQT. R is a perfluorinated alkyl group and X, Z, and Q are independently H or halogen. One of Y and T is H and the other is Cl, Br, or I. About 80% or greater of the hydrochlorofluorocarbon mixture is the fluoroolefin. The dehydrohalogenation product also includes a caustic agent and a solvent. In some embodiments, the dehydrohalogenation product is free of any catalyst, including any phase transfer catalyst.

公开(公告)号：US20220213009A1

公开(公告)日：2022-07-07

申请号：US17656340

申请日：2022-03-24

Applicant: The Chemours Company FC, LLC

Inventor： Xuehui SUN ,  Mario Joseph Nappa ,  Karl Krause

IPC: C07C17/087 ,  C07C17/25 ,  C07C19/08 ,  C07C17/20 ,  C07C19/10

Abstract: A method hydrofluorinates an olefin of the formula: RCX═CYZ to produce a hydrofluoroalkane of formula RCXFCHYZ or RCXHCFYZ, where X, Y, and Z are independently the same or different and are selected from the group consisting of H, F, Cl, Br, and C1-C6 alkyl which is partially or fully substituted with chloro or fluoro or bromo; and R is a C1-C6 alkyl which is unsubstituted or substituted with chloro or fluoro or bromo. The method includes reacting the olefin with HF in the vapor phase, in the presence of SbF5, at a temperature ranging from about −30° C. to about 65° C. and compositions formed by the process.

公开(公告)号：US20210214294A1

公开(公告)日：2021-07-15

申请号：US17218446

申请日：2021-03-31

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Mario Joseph NAPPA ,  Xuehui SUN ,  David Richard CORBIN

IPC: C07C17/389 ,  C07C17/25 ,  C07C17/087

Abstract: This disclosure relates to processes which involve: contacting a mixture comprising at least one fluoroolefin and at least one impurity with at least one zeolite to reduce the concentration of the at least one impurity in the mixture; and the at least one zeolite is selected from the group consisting of zeolites having pore opening of at least 4 Angstroms and no more than about 5 Angstroms, zeolites having pore opening of at least about 5 Angstroms and Sanderson electronegativity of no more than about 2.6, and mixtures thereof; provided that the at least one zeolite is not zeolite 4A. This disclosure also relates to processes for making at least one hydrotetrafluoropropene product selected from the group consisting of CF3CF═CH2, CF3CH═CHF, and mixtures thereof; and relates to processes for making at least one hydrochlorotrifluoropropene product selected from the group consisting of CF3CCl═CH2, CF3CH═CHCl, and mixtures thereof.

公开(公告)号：US20160052842A1

公开(公告)日：2016-02-25

申请号：US14932042

申请日：2015-11-04

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Mario Joseph NAPPA ,  Xuehui SUN ,  David Richard CORBIN ,  Haluk KOPKALLI ,  Haiyou WANG

IPC: C07C17/389 ,  C07C17/25

CPC classification number: C07C17/389 ,  C07C17/087 ,  C07C17/25 ,  Y02P20/582 ,  C07C21/18

Abstract: This disclosure relates to processes which involve: contacting a mixture comprising at least one fluoroolefin and at least one RfC≡CX impurity with at least one zeolite to reduce the concentration of the at least one RfC≡CX impurity in the mixture; wherein Rf is a straight-chain perfluorinated alkyl group, and X is H, F, Cl, Br or I; and the at least one zeolite is selected from the group consisting of zeolites having pore opening of at least 4 Angstroms and no more than about 5 Angstroms, zeolites having pore opening of at least about 5 Angstroms and Sanderson electronegativity of no more than about 2.6, and mixtures thereof; provided that the at least one zeolite is not zeolite 4A. This disclosure also relates to processes for making at least one hydrotetrafluoropropene product selected from the group consisting of CF3CF═CH2, CF3CH═CHF, and mixtures thereof; and relates to processes for making at least one hydrochlorotrifluoropropene product selected from the group consisting of CF3CCl═CH2, CF3CH═CHCl, and mixtures thereof.

公开(公告)号：US20230142757A1

公开(公告)日：2023-05-11

申请号：US18092570

申请日：2023-01-03

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Xuehui SUN

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

CPC classification number: C07C17/206 ,  C08J9/146 ,  C09K3/30 ,  C09K5/044 ,  C11D7/30 ,  C11D7/5018 ,  C07C2523/26 ,  C08J2203/162 ,  C09K2205/126 ,  C09K2205/22

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：US20220348524A1

公开(公告)日：2022-11-03

申请号：US17812203

申请日：2022-07-13

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Xuehui SUN ,  Karl Krause

IPC: C07C17/25

Abstract: A dehydrohalogenation product includes a hydrochlorofluorocarbon mixture of a fluoroolefin of formula RCX═CZQ and a halofluoroalkane of formula RCXYCZQT. R is a perfluorinated alkyl group and X, Z, and Q are independently H or halogen. One of Y and T is H and the other is Cl, Br, or I. About 80% or greater of the hydrochlorofluorocarbon mixture is the fluoroolefin. The dehydrohalogenation product also includes a caustic agent and a solvent. In some embodiments, the dehydrohalogenation product is free of any catalyst, including any phase transfer catalyst.

公开(公告)号：US20200223772A1

公开(公告)日：2020-07-16

申请号：US15759035

申请日：2016-09-09

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Xuehui SUN

IPC: C07C17/20

Abstract: The disclosure relates to a method for fluorinating an alkane substrate comprising contacting said alkane substrate with a fluoroalkane in the presence of a fluorination catalyst selected from chrome oxide, fluorinated chrome oxide, aluminum oxide and fluorinated aluminum oxide at elevated temperatures.

公开(公告)号：US20180127338A1

公开(公告)日：2018-05-10

申请号：US15575526

申请日：2016-05-20

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Xuehui SUN ,  Mario Joseph NAPPA ,  Karl KRAUSE

IPC: C07C17/087 ,  C07C17/20 ,  C07C19/10

CPC classification number: C07C17/087 ,  C07C17/206 ,  C07C19/10 ,  C07C2527/12 ,  C07C2527/133

Abstract: The disclosure relates to a method for hydrofluorination of an olefin of the formula: RCX=CYZ to produce a hydrofluoroalkane of formula RCXFCHYZ or RCHXCFYZ, wherein X, Y, and Z are independently the same or different and are selected from the group consisting of H, F, Cl, Br, and C1-C6 alkyl which is partially or fully substituted with chloro or fluoro or bromo; and R is a C1-C6 alkyl which is unsubstituted or substituted with chloro or fluoro or bromo, comprising reacting the olefin with HF in the liquid-phase, in the presence of SbF5, at a temperature ranging from about −30° C. to about 65° C.

公开(公告)号：US20220363614A1

公开(公告)日：2022-11-17

申请号：US17815608

申请日：2022-07-28

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Mario Joseph NAPPA ,  Xuehui SUN ,  David Richard CORBIN

IPC: C07C17/389 ,  C07C17/25 ,  C07C17/087

Abstract: This disclosure relates to processes which involve: contacting a mixture comprising at least one fluoroolefin and at least one impurity with at least one zeolite to reduce the concentration of the at least one impurity in the mixture; and the at least one zeolite is selected from the group consisting of zeolites having pore opening of at least 4 Angstroms and no more than about 5 Angstroms, zeolites having pore opening of at least about 5 Angstroms and Sanderson electronegativity of no more than about 2.6, and mixtures thereof; provided that the at least one zeolite is not zeolite 4A. This disclosure also relates to processes for making at least one hydrotetrafluoropropene product selected from the group consisting of CF3CF═CH2, CF3CH═CHF, and mixtures thereof; and relates to processes for making at least one hydrochlorotrifluoropropene product selected from the group consisting of CF3CCl═CH2, CF3CH═CHCl, and mixtures thereof.