Patents by Inventor Haiyou Wang

Haiyou Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Integrated process to produce 2,3,3,3-tetrafluoropropene
    Patent number: 9334206
    Abstract: The invention relates to a separation process whereby 2-chloro-3,3,3-trifluoropropene (1233xf) is separated from a mixture containing other fluorinated organics and high boiling materials such as dimers using azeotropes of HF formed by adding appropriate amounts to the mixture which facilitate separation by, e.g. distillation.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: May 10, 2016
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou Wang, Selma Bektesevic, Daniel C. Merkel, Hsueh Sung Tung, Konstantin A. Pokrovski
  • Process for producing 2,3,3,3-tetrafluoropropene
    Patent number: 9328043
    Abstract: The present invention relates, in part, an improved process for the production of certain hydrofluoroolefins, particularly 2,3,3,3-tetrafluoropropene (1234yf). In certain non-limiting embodiments, the invention relates to methods for improving process efficiency during the fluorination of 1,1,2,3-tetrachloropropene, 2,3,3,3-tetrachloropropene, and/or 1,1,1,2,3-pentachloropropane to 2-chloro-3,3,3-trifluoropropene by separating and recycling unreacted HF, unreacted starting materials, and/or certain process intermediates from the 2-chloro-3,3,3-trifluoropropene product stream.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: May 3, 2016
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou Wang, Selma Bektesevic, Hsueh S. Tung, Haluk Kopkalli, Yuon Chiu
  • METHOD FOR SEPARATING HF FROM HF/HALOGENATED HYDROCARBON MIXTURES USING IONIC LIQUIDS
    Publication number: 20160107892
    Abstract: The present invention relates to an ionic liquid comprised of a salt, the anion of which is Cl?, F?, and (HF)nF?(n=1.0?4.0), or combination thereof. In another embodiment, the present invention relates to a process of separating HF from a first mixture comprised of at least one halogenated hydrocarbon and HF which comprises contacting the mixture with an ionic liquid comprised of a salt, the anion of which is Cl?, F?, and (HF)nF? where n is a positive number ranging from 1 to 4, inclusive 4.0), to form a second mixture comprised of HF, halogenated hydrocarbon and said ionic liquid, extracting a solution comprising HF therefrom, and recovering HF therefrom.
    Type: Application
    Filed: October 15, 2015
    Publication date: April 21, 2016
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou WANG, Hsueh Sung TUNG
  • Reaction system and process to produce fluorinated organics
    Patent number: 9309175
    Abstract: The invention relates to the use of a liquid-vapor separator such as a de-entrainer to remove an unvaporized portion of a feed, e.g. 1,1,2,3-tetrachloropropene (1230xa), to a catalytic vapor phase fluorination reaction where e.g. 2-chloro-3,3,3,-trifluoropropene (1233xf) is produced. The invention extends the life of the catalyst.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: April 12, 2016
    Assignee: Honeywell International Inc.
    Inventors: Selma Bektesevic, Haluk Kopkalli, Haiyou Wang
  • Process for the manufacture of 2,3,3,3-tetrafluoropropene
    Patent number: 9296670
    Abstract: A method for forming 2,3,3,3-tetrafluoropropene (HFO-1234yf) comprising providing a dehydrochlorination starting material having relatively low concentrations of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), especially and preferable less than about 8.0% when the dehydrochlorination reaction utilizes no substantial amount of catalyst or catalyst comprising austenitic nickel-based materials.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: March 29, 2016
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Haiyou Wang, Hsueh S. Tung, Haluk Kopkalli, Yuon Chiu, Gustavo Cerri, Jeffrey Ball, Philip L. Da Prato, Xuehui Sun, Mario Joseph Nappa
  • Process for reactor passivation
    Patent number: 9296669
    Abstract: Disclosed is a process for passivating a surface of a dehydrochlorination reactor comprising: stopping a flow of hydrochlorofluoropropane to a reactor, passing a gas mixture comprising hydrogen gas through the reactor at a temperature of at least 25° C. for a period of time sufficient to restore the selectivity of a dehydrochlorination reaction, stopping the flow of the hydrogen gas mixture, and resuming the flow of hydrochlorofluoropropane to the dehydrochlorination reaction.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: March 29, 2016
    Assignee: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Xuehui Sun, Mario Joseph Nappa, Haiyou Wang, Haluk Kopkalli
  • AZEOTROPIC COMPOSITIONS OF 1,3,3,3-TETRACHLOROPROP-1-ENE AND HYDROGEN FLUORIDE
    Publication number: 20160083317
    Abstract: Provided are azeotropic or azeotrope-like mixtures of 1,3,3,3-tetrachloroprop-1-ene (HCO-1230zd) and hydrogen fluoride. Such compositions are useful as a feed stock in the production of HFC245fa and HCFO1233zd.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 24, 2016
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh Sung Tung, Haiyou Wang, Ryan Hulse
  • PROCESS FOR PRODUCING CHLOROTRIFLUOROETHYLENE
    Publication number: 20160068455
    Abstract: The present invention relates, at least in part, to a process for making chlorotrifluoroethylene (CFO-1113) from 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a). In certain aspects, the process includes dehydrochlorinating 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a) in the presence of a catalyst selected from the group consisting of (i) one or more metal halides; (ii) one or more halogenated metal oxides; (iii) one or more zero-valent metals or metal alloys; (iv) combinations thereof.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 10, 2016
    Inventors: Haiyou Wang, Hsueh Sung Tung
  • Process for producing 1-chloro-3,3,3-trifluoropropene in an ionic liquid
    Patent number: 9272967
    Abstract: This invention relates to methods and systems for producing hydrochlorofluoro-olefins, particularly 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) by the fluorination of a starting material selected from the group consisting of 1,1,1,3,3-pentachloropropane (HCC-240fa), 1,1,3,3-tetrachloropropene, and 1,1,1,3-tetrachloropropene, alone or in combination, in an ionic liquid.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: March 1, 2016
    Assignee: Honeywell International Inc.
    Inventors: Haiyou Wang, Hsueh Sung Tung
  • Azeotropic compositions of 1,3,3-trichloro-1,1-difluoropropane and hydrogen fluoride
    Patent number: 9272969
    Abstract: Provided are azeotropic or azeotrope-like mixtures of 1,3,3-trichloro-1,1-difluoro-propane (HCFC-242fa) and hydrogen fluoride. Such compositions are useful as a feed stock or intermediate in the production of HFC-245fa and HCFO-1233zd.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 1, 2016
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh Sung Tung, Haiyou Wang, Stephen A. Cottrell, Hang T. Pham
  • PROCESS FOR THE REDUCTION OF RfC=CX IMPURITIES IN FLUOROOLEFINS
    Publication number: 20160052842
    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.
    Type: Application
    Filed: November 4, 2015
    Publication date: February 25, 2016
    Applicant: THE CHEMOURS COMPANY FC, LLC
    Inventors: Mario Joseph NAPPA, Xuehui SUN, David Richard CORBIN, Haluk KOPKALLI, Haiyou WANG
  • Process for producing 2,3,3,3-tetrafluoropropene
    Patent number: 9260365
    Abstract: The instant invention relates to a process and method for manufacturing 2,3,3,3-tetrafluoropropene by dehydrohalogenating a reactant stream of 2-chloro-1,1,1,2-tetrafluoropropane that is substantially free from impurities, particularly halogenated propanes, propenes, and propynes.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: February 16, 2016
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh S. Tung, Haiyou Wang
  • Manufacturing process for HFO-1234ze
    Patent number: 9255046
    Abstract: Disclosed is a method for forming HFO-1234ze, and for forming compositions comprising HFO-1234ze, by (a) converting, preferably by dehydrofluorination, pentafluorpropane (HFC-245), preferably 1,1,1,3,3-pentafluorpropane (HFC-245fa), preferably by contact with a caustic solution, to a reaction product comprising cis-HFO-1234ze and trans-HFO-1234ze; and (b) contacting at least a portion, preferably substantially portion, and in certain embodiments substantially all of said reaction product with at least one isomerization catalyst to convert at least a portion, and preferably at least a substantial portion, of cis-HFO-1234ze in said reaction product to trans-HFO-1234ze.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: February 9, 2016
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Stephen A. Cottrell, Hsueh Sung Tung, Haiyou Wang, Yuon Chiu, Gustavo Cerri
  • Stabilizer and inhibitor for chloropropenes, such as tetrachloropropene 1,1,2,3-tetrachloropropene (1230xa), used in the manufacture of 2,3,3,3-tetrafluoropropene (1234yf)
    Patent number: 9228128
    Abstract: The present invention relates in part to a container for stabilized chloropropenes, such as 1,1,2,3-tetrachloropropene, otherwise known to decompose and degrade, and to the resulting stabilized chloropropene, using a morpholine compound and/or a trialkyl phosphate compound as defined herein. Such stabilized chloropropenes are useful in the manufacture of hydrofluoroolefins such as 2,3,3,3-tetrafluoroprop-1-ene (1234yf).
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: January 5, 2016
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Haluk Kopkalli, Haiyou Wang, Hsueh Sung Tung, Daniel C. Merkel
  • Azeotropic compositions of 1,3,3,3-tetrachloroprop-1-ene and hydrogen fluoride
    Patent number: 9222177
    Abstract: Provided are azeotropic or azeotrope-like mixtures of 1,3,3,3-tetrachloroprop-1-ene (HCO-1230zd) and hydrogen fluoride. Such compositions are useful as a feed stock in the production of HFC245fa and HCFO1233zd.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 29, 2015
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Hsueh Sung Tung, Konstantin A. Pokrovski, Haiyou Wang, Ryan Hulse, Hang T. Pham
  • PREPARATION OF FLUORINATED OLEFINS VIA CATALYTIC DEHYDROHALOGENATION OF HALOGENATED HYDROCARBONS
    Publication number: 20150368169
    Abstract: A process for making a fluorinated olefin having the step of dehydrochlorinating a hydrochlorofluorocarbon having at least one hydrogen atom and at least one chlorine atom on adjacent carbon atoms, preferably carried out in the presence of a catalyst selected from the group consisting of (i) one or more metal halides, (ii) one or more halogenated metal oxides, (iii) one or more zero-valent metals/metal alloys, (iv) a combination of two or more of the foregoing.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 24, 2015
    Inventors: Haiyou Wang, Hsueh Sung Tung
  • Low temperature production of 2-chloro-3,3,3-trifluoropropene
    Patent number: 9211483
    Abstract: Disclosed is a method for the production of 1233xf comprising the continuous low temperature liquid phase reaction of 1,1,1,2,3-pentachloropropane and anhydrous HF, without the use of a catalyst, wherein the reaction takes place in one or more reaction vessels, each one in succession converting a portion of the original reactants fed to the lead reaction vessel and wherein the reactions are run in a continuous fashion.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: December 15, 2015
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Hsueh Sung Tung, Konstantin A. Pokrovski, Haiyou Wang, Selma Bektesevic
  • Catalysts for 2-chloro-1,1,1,2-tetrafluoropropane dehydrochlorination
    Patent number: 9180433
    Abstract: The present invention relates to a provides a catalyst comprising (a) a solid support comprising an alkaline earth metal oxide, fluoride, or oxyfluoride, and (b) at least one elemental metal disposed on or within said support, preferably wherein said elemental metal is present in an amount from about 0.01 to about 10 weight percent based upon the total weight of the metal and support. It also relates to the use of the catalyst for the dehydrochlorination of a hydrochlorofluorocarbon.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: November 10, 2015
    Assignee: HONEYWELL INTERNATIONAL, INC.
    Inventors: Haiyou Wang, Hsueh Sung Tung
  • PROCESS FOR THE REDUCTION OF RfC=CX IMPURITIES IN FLUOROOLEFINS
    Publication number: 20150259267
    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.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 17, 2015
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Xuehui SUN, David Richard CORBIN, Haluk KOPKALLI, Haiyou WANG
  • Method for mitigating HCL generation during 1,1,2,3-tetrachloropropene purification
    Patent number: 9090531
    Abstract: This invention is directed to a method for mitigating HCl generation during 1230xa purification, which comprises the steps of; (a) adding a chelating agent into 1230xa crude, and (b) conducting the 1230xa purification in the presence of said chelating agent at a quantity sufficient to reduce or prevent 1230xa decomposition. Examples of chelating agent include tributyl phosphate (TBP), tripropyl phosphate (TPP), and triethyl phosphate (TEP). The concentration of chelating agent in 1230xa crude can range from 0.001 to 20 wt %, preferably from 0.01 to 10 wt %, and more preferably from 0.1 to 5 wt %.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 28, 2015
    Assignee: Honeywell International Inc.
    Inventors: Haiyou Wang, Huseh Sung Tung, Selma Bektesevic