Abstract: The present invention relates to a composition comprising HFO-1234yf, or trans-HFO-1234ze, or a mixture thereof; HFC-32; and HFC-152a, HFO-1243zf, or a mixture thereof, wherein said composition is selected from the group consisting of: (I) a first composition, wherein said HFO-1234yf or trans-HFO-1234ze or a mixture thereof is at least 56 weight percent of said first composition; (II) a second composition, wherein said HFC-32 is at most 29 weight percent of said second composition; (III) a third composition, wherein said HFC-152a is at least 56 weight percent said third composition; (IV) a fourth composition, wherein said HFC-32 is at least 56 weight percent of said fourth composition; (V) a fifth composition comprising trans-HFO-1234ze, HFC-32, and HFC-152a, HFO-1243zf, or a mixture thereof; and (VI) a sixth composition, wherein said HFO-1243zf or mixture thereof with HFC-152a is at most 20 weight percent of said sixth composition.
Type:
Application
Filed:
November 3, 2023
Publication date:
February 22, 2024
Applicant:
THE CHEMOURS COMPANY FC, LLC
Inventors:
Barbara Haviland Minor, Joachim Gerstel
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.
Type:
Grant
Filed:
July 28, 2022
Date of Patent:
February 20, 2024
Assignee:
THE CHEMOURS COMPANY FC LLC
Inventors:
Mario Joseph Nappa, Xuehui Sun, David Richard Corbin
Abstract: A method of chlorinating a antimony fluorohalide catalyst is disclosed. In one embodiment the method comprises contacting an antimony fluorohalide catalyst that contains one or more fluorines with a regenerating agent chosen from 2-chloro-3,3,3-trifluoropropene (1233xf), 1,1,1,3-tetrachloropropane (250fb), 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) and combinations of 1233xf, 250fb, and 244bb, under conditions effective to exchange at least one fluorine in the antimony fluorohalide catalyst with chlorine. The method can be used to regenerate spent antimony fluorohalide catalyst, for example regenerating SbCl5 from SbF5.
Type:
Grant
Filed:
September 6, 2019
Date of Patent:
February 20, 2024
Assignee:
THE CHEMOURS COMPANY FC, LLC
Inventors:
Xuehui Sun, Mario Joseph Nappa, Karl Krause
Abstract: Provided is a fluororesin coating composition for forming a topcoat having improved non-tackiness and water and oil repellency. The fluororesin is crystalline tetrafluoroethylene and perfluoro(ethyl vinyl ether) copolymer having a perfluoro(ethyl vinyl ether) content of 8 to 20 mass % based on the total mass of the copolymer.
Type:
Grant
Filed:
November 12, 2021
Date of Patent:
January 23, 2024
Assignees:
THE CHEMOURS COMPANY FC, LLC, CHEMOURS-MITSUI FLUOROPRODUCTS CO., LTD
Abstract: Compositions, systems and methods for introducing lubricants, and additives, that are designed to work with environmentally friendly refrigerants into vehicle heat management systems including passenger compartment air conditioning (A/C) systems are disclosed. Methods for charging lubricants and specific additives using environmentally desirable (low GWP) refrigerant or refrigerant blend compositions into an environmentally friendly system, such as a system that uses HFO-1234yf, are also disclosed.
Type:
Application
Filed:
September 26, 2023
Publication date:
January 18, 2024
Applicant:
The Chemours Company FC, LLC
Inventors:
MARY E KOBAN, Nina E GRAY, Hubert MENTZ, JR.
Abstract: Refrigerant compositions including 2,3,3,3-tetrafluoropropene (HFO-1234yf) and at least one of ethane (R-170) or propane (R-290) which exhibit near-azeotropic or azeotrope-like behavior. The refrigerant compositions exhibit a low global warming potential (GWP) and are non-ozone depleting. The refrigerant compositions are useful as a heating or cooling fluids in a variety of heating or cooling systems including heat pumps and other heating and cooling loops, in, for example, the automotive industry.
Abstract: In accordance with the present invention refrigerant compositions are disclosed. The compositions comprise a refrigerant mixture consisting essentially of HFC-32 and HFO-1234yf. The compositions are useful as refrigerants in processes to produce cooling and heating, in methods for replacing refrigerant R-410A, and in air conditioning or heat pump systems.
Abstract: A multi-step method is disclosed for exchanging heat in a vapor compression heat transfer system having a working fluid circulating therethrough. The method includes the step of circulating a working fluid comprising a fluoroolefin to an inlet of a first tube of an internal heat exchanger, through the internal heat exchanger and to an outlet thereof. Also disclosed are vapor compression heat transfer systems for exchanging heat. The systems include an evaporator, a compressor, a dual-row condenser and an intermediate heat exchanger having a first tube and a second tube. A disclosed system involves a dual-row condenser connected to the first and second intermediate heat exchanger tubes. Another disclosed system involves a dual-row evaporator connected to the first and second intermediate heat exchanger tubes.
Type:
Grant
Filed:
December 19, 2022
Date of Patent:
January 9, 2024
Assignee:
THE CHEMOURS COMPANY FC, LLC
Inventors:
Denis Clodic, Youssef Riachi, Mary E Koban
Abstract: A fluoropropene composition comprising E-1,3,3,3-tetrafluoropropene, 1,1,3,3,3-pentafluoropropene, and 2,3,3,3-tetrafluoropropene, wherein the total amount of 1,1,3,3,3-pentafluoropropene and 2,3,3,3-tetrafluoropropene is 1.0 wt. % or less, based on the total weight of the fluoropropene composition. A method of producing the fluoropropene, composition and methods for using the fluoropropene composition are also disclosed.
Abstract: A process for polymerizing at least one fluoromonomer in an aqueous medium containing initiator and hydrocarbon dispersing agent to form an aqueous dispersion of particles of fluoropolymer. The hydrocarbon dispersing agent comprises a compound of formula I: R—(XZ)n??I wherein R is a hydrophobic hydrocarbon moiety that comprises one or more saturated or unsaturated, non-cyclic or cyclic aliphatic groups, the percentage of total CH3 groups in relation to the total of CH3, CH2 and CH groups in said one or more aliphatic groups being at least about 70%, said hydrophobic moiety being free of siloxane units; wherein each X may be the same or different and represents an ionic hydrophilic moiety; wherein each Z may be a same or different and represents one or more counter ions for said ionic hydrophilic moiety; and wherein n is 1 to 3.
Type:
Application
Filed:
September 30, 2021
Publication date:
January 4, 2024
Applicant:
THE CHEMOURS COMPANY FC, LLC
Inventors:
PHAN LINH TANG, MICHAEL DEEMER, VINCENT FRANCO, STEVEN FURYK, STEPHEN JAMES GETTY, DIPTI DILIP KHASNIS, XIAOLIN LIU, ALEXANDER ANTHONY MARCHIONE, ANDRII MATSNEV, BENJAMIN WEAVER MESSMORE, PETER A. MORKEN, CAMERON PARRISH, ADAM PAUL SMITH, EDWARD PATRICK CAREY
Abstract: Disclosed is an immersion cooling unit including an immersion cell, defining an internal cavity. An electrical component is positioned in the internal cavity. A dielectric working fluid partially fills the internal cavity and at least partially immerses the electrical component. A condensing coil, is positioned above the dielectric working fluid. The dielectric working fluid comprises at least one of 1,1,1,2,2,5,5,6,6,6-decafluoro-3-hexene, (HFO-153-10mczz), or 1,1,1,4,5,5,5-heptafluoro-4-trifluoromethyl-2-pentene, (HFO-153-10mzzy).
Type:
Application
Filed:
August 30, 2023
Publication date:
December 28, 2023
Applicant:
THE CHEMOURS COMPANY FC, LLC
Inventors:
JASON R. JUHASZ, DREW RICHARD BRANDT, LUKE DAVID SIMONI, JONATHAN P. STEHMAN, VIACHESLAV A. PETROV, GUSTAVO POTTKER
Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.
Type:
Grant
Filed:
August 23, 2021
Date of Patent:
December 26, 2023
Assignee:
THE CHEMOURS COMPANY FC, LLC
Inventors:
Andrew Edward Feiring, Viacheslav A Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C Mouli, Thomas Joseph Leck, Jon Lee Howell
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.
Abstract: A method for extinguishing a flame and terminating thermal runaway in a device powered by a lithium ion battery. The disclosure also provides a system for extinguishing fires generated by lithium ion batteries exhibiting thermal runaway.
Abstract: A method for extinguishing a flame and terminating thermal runaway in a device powered by a lithium ion battery. The disclosure also provides a system for extinguishing fires generated by lithium ion batteries exhibiting thermal runaway.
Abstract: A method for extinguishing a flame and terminating thermal runaway in a device powered by a lithium ion battery. The disclosure also provides a system for extinguishing fires generated by lithium ion batteries exhibiting thermal runaway.
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.
Abstract: The present invention relates to a composition comprising HFO-1234yf, or trans-HFO-1234ze, or a mixture thereof; HFC-32; and HFC-152a, HFO-1243zf, or a mixture thereof, wherein said composition is selected from the group consisting of: (I) a first composition, wherein said HFO-1234yf or trans-HFO-1234ze or a mixture thereof is at least 56 weight percent of said first composition; (II) a second composition, wherein said HFC-32 is at most 29 weight percent of said second composition; (III) a third composition, wherein said HFC-152a is at least 56 weight percent said third composition; (IV) a fourth composition, wherein said HFC-32 is at least 56 weight percent of said fourth composition; (V) a fifth composition comprising trans-HFO-1234ze, HFC-32, and HFC-152a, HFO-1243zf, or a mixture thereof; and (VI) a sixth composition, wherein said HFO-1243zf or mixture thereof with HFC-152a is at most 20 weight percent of said sixth composition.
Type:
Grant
Filed:
October 13, 2020
Date of Patent:
December 12, 2023
Assignee:
THE CHEMOURS COMPANY FC, LLC
Inventors:
Barbara Haviland Minor, Joachim Gerstel
Abstract: The present invention relates to refrigerant compositions comprising at least one fluoroolefin, at least one lubricant and an effective amount of at least one inhibitor wherein the inhibitor is present in the fluoroolefin and the lubricant.
Abstract: Disclosed is a composition comprising difluoromethane (R-32), 2,3,3,3-tetrafluoropropene (R-1234yf), and isobutane (R-600a). A refrigeration system, including a hermetic compressor and a refrigerant composition. The refrigerant composition includes difluoromethane (R-32), 2,3,3,3-tetrafluoropropene (R-1234yf), and isobutane (R-600a).
Type:
Application
Filed:
October 7, 2021
Publication date:
November 23, 2023
Applicant:
THE CHEMOURS COMPANY FC, LLC
Inventors:
STEPHEN SPLETZER, BARBARA HAVILAND MINOR