公开(公告)号：US12180134B2

公开(公告)日：2024-12-31

申请号：US18528224

申请日：2023-12-04

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Mario Joseph Nappa ,  Xuehui Sun ,  David Richard Corbin

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

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：US10246388B2

公开(公告)日：2019-04-02

申请号：US15609292

申请日：2017-05-31

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Mario Joseph Nappa ,  Xuehui Sun ,  David Richard Corbin

IPC: C07C17/389 ,  C07C17/25 ,  C07C17/087 ,  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：US20180258018A1

公开(公告)日：2018-09-13

申请号：US15973598

申请日：2018-05-08

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Mario Joseph NAPPA ,  Xuehui Sun ,  David Richard Corbin

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

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：US10995047B2

公开(公告)日：2021-05-04

申请号：US16446840

申请日：2019-06-20

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：US11905226B2

公开(公告)日：2024-02-20

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

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

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：US11434185B2

公开(公告)日：2022-09-06

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：US10343961B2

公开(公告)日：2019-07-09

申请号：US15973598

申请日：2018-05-08

Applicant: THE CHEMOURS COMPANY FC, LLC

Inventor： Mario Joseph Nappa ,  Xuehui Sun ,  David Richard Corbin

IPC: C07C17/25 ,  C07C21/18 ,  C07C17/087 ,  C07C17/389

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.