Patents by Inventor Hsueh Sung Tung

Hsueh Sung Tung 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).

  • Patent number: 10717662
    Abstract: A process for the simultaneous removal of iron and phosphate ions from a chlorinated hydrocarbon waste stream, such as a waste stream derived from a process for manufacturing 1,1,1,3,3-pentachloropropane (HCC-240fa) and/or 1,1,1,3-tetrachloropropane (HCC-250fb). The waste stream contains at least one of chlorinated hydrocarbons, tributyl phosphate (TBP) and/or triethyl phosphate (TEP), iron, FeCl2 and/or FeCl3, a TBP-FeCl2 complex and/or a TBP-FeCl3 complex, and a TEP-FeCl2 complex and/or a TEP-FeCl3 complex, and is subjected to thermal oxidation to generate a second, aqueous waste stream containing at least one of hydrogen chloride (HCl), FeCl3 and/or FeCl2, and H3PO4. The second waste stream is exposed to a base to generate a precipitate including at least one insoluble compound selected from the group consisting of FePO4, Fe(OH)3, and Ca3(PO4)2, and the precipitate is separated from the second waste stream to produce a liquid phase including only trace amounts of iron and phosphate ions.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: July 21, 2020
    Assignee: Honeywell International Inc.
    Inventors: Terris Yang, Hsueh Sung Tung
  • Patent number: 10676415
    Abstract: Disclosed is a composition comprised of at least one compound selected from 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoro-1-propene and 1-chloro-3,3,3-trifluoropropene and halogenated impurity selected from the group consisting of HFO-1141 (CH2?CHF), HCFO-1140 (CH2?CHCl), and HCFO-1131 (CH2?CFCl and/or trans/cis-CHF?CHCl) and combination thereof, said halogenated impurity being present in said composition in an amount of 50 ppm or less.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: June 9, 2020
    Assignee: Honeywell International Inc.
    Inventors: Haiyou Wang, Hsueh Sung Tung
  • Patent number: 10676414
    Abstract: A process for the manufacture of haloalkanes, or more particularly to a process for the manufacture of 1,1,1,3,3-pentachloropropane (HCC-240fa) and/or 1,1,1,3-tetrachloropropane (HCC-250fb). The process includes (a) mixing a catalyst, co-catalyst and a haloalkane starting material under conditions suitable to produce a homogeneous mixture; (b) reacting the homogeneous mixture with a haloalkene and/or alkene starting material under conditions suitable to produce a haloalkane product stream; and (c) recovering a haloalkane product from said product stream.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: June 9, 2020
    Assignee: Honeywell International Inc.
    Inventors: Hsueh Sung Tung, Ian Shankland
  • Publication number: 20200071247
    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 10, 2019
    Publication date: March 5, 2020
    Inventors: Haiyou Wang, Hsueh Sung Tung
  • Patent number: 10577295
    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: Grant
    Filed: December 22, 2017
    Date of Patent: March 3, 2020
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou Wang, Hsueh Sung Tung
  • Publication number: 20200055804
    Abstract: The invention relates to a process for reducing the concentration of a fluorinated alkyne impurity, such as 3,3,3-trifluoropropyne (TFPY), in 2,3,3,3-tetrafluoropropene (HFO-1234yf) which comprises contacting such a mixture with a caustic material, such as sodium hydroxide (NaOH), under conditions effective to reduce the concentration of the fluorinated alkyne impurity, including in some practices reducing the concentration by at least about 50%.
    Type: Application
    Filed: November 2, 2017
    Publication date: February 20, 2020
    Inventors: Haiyou Wang, Hsueh Sung Tung, Willie Josue Perez, Yian Zhai, Ralph John Borowski, Fang Huang Tu, Lucas Peter Labuda, John L. Welch
  • Patent number: 10464869
    Abstract: Disclosed are processes for producing halogenated olefins, and preferably tetrafluorinated propene(s), from one or more alkanes having both fluorine substituents and non-fluorine substituents, preferably with a high degree of conversion and selectivity. Preferably the process comprises the use of a catalyzed reaction in which the catalyst is selected from the group consisting of activated carbons halogenated mono- and di-valent metal oxides, mono- and di-valent Lewis acid metal halides, zero-valent metals, and combinations of these.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: November 5, 2019
    Assignee: Honeywell International Inc.
    Inventors: Haiyou Wang, Hsueh Sung Tung, Sudip Mukhopadhyay
  • Patent number: 10427999
    Abstract: The present invention discloses a manufacturing process to produce high purity 1234yf from 245eb, which preferably includes the removal of impurities present in 245eb raw material, the dehydrofluorination of 245eb, and the removal of impurities present in final crude product. The disclosed manufacturing process allows the production of a 1234yf product with lower the levels of 1225ye and/or trifluoropropene, preferably in amounts of less than about 500, and 50 ppm, respectively.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: October 1, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou Wang, Hsueh Sung Tung, Rajiv R. Singh, Ian Shankland
  • Patent number: 10414705
    Abstract: The present invention discloses a manufacturing process to produce high purity 1234yf from 245eb, which preferably includes the removal of impurities present in 245eb raw material, the dehydrofluorination of 245eb, and the removal of impurities present in final crude product. The disclosed manufacturing process allows the production of a 1234yf product with lower the levels of 1225ye and/or trifluoropropene, preferably in amounts of less than about 500, and 50 ppm, respectively.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: September 17, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou Wang, Hsueh Sung Tung, Rajiv R. Singh, Ian Shankland
  • Publication number: 20190241449
    Abstract: A process for the simultaneous removal of iron and phosphate ions from a chlorinated hydrocarbon waste stream, such as a waste stream derived from a process for manufacturing 1,1,1,3,3-pentachloropropane (HCC-240fa) and/or 1,1,1,3-tetrachloropropane (HCC-250fb). The waste stream contains at least one of chlorinated hydrocarbons, tributyl phosphate (TBP) and/or triethyl phosphate (TEP), iron, FeCl2 and/or FeCl3, a TBP-FeCl2 complex and/or a TBP-FeCl3 complex, and a TEP-FeCl2 complex and/or a TEP-FeCl3 complex, and is subjected to thermal oxidation to generate a second, aqueous waste stream containing at least one of hydrogen chloride (HCl), FeCl3 and/or FeCl2, and H3PO4. The second waste stream is exposed to a base to generate a precipitate including at least one insoluble compound selected from the group consisting of FePO4, Fe(OH)3, and Ca3(PO4)2, and the precipitate is separated from the second waste stream to produce a liquid phase including only trace amounts of iron and phosphate ions.
    Type: Application
    Filed: February 7, 2018
    Publication date: August 8, 2019
    Inventors: Terris Yang, Hsueh Sung Tung
  • Patent number: 10343962
    Abstract: The present invention relates, in part, to the discovery that, during the fluorination of certain fluoroolefin starting reagents, particularly, 1,1,2,3-tetrachloropropene (1230xa), oligomerization/polymerization of such starting reagents reduces the conversion process and leads to increased catalyst deactivation. The present invention also illustrates that providing one or more organic co-feed to the fluooolefin starting stream reduces such oligomerization/polymerization and improves catalystic stability.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: July 9, 2019
    Assignee: Honeywell International Inc.
    Inventors: Selma Bektesevic, Daniel C. Merkel, Mario Joseph Nappa, Xuehui Sun, Hsueh Sung Tung, Haiyou Wang
  • Publication number: 20190144364
    Abstract: A method for producing 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentafluoropropene; (2) separation of the desired intermediate hydrofluoroalkane, such as 1,1,1,2,3,3-hexafluoropropane and/or 1,1,1,2,3-pentafluoropropane; (3) dehydrofluorination of the intermediate hydrofluoroalkane to produce the desired 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene, followed by another separation to isolate the desired product and, optionally, recycle of the 1,1,1,2,3-pentafluoropropene.
    Type: Application
    Filed: June 11, 2018
    Publication date: May 16, 2019
    Inventors: Yuon Chiu, Stephen A. Cottrell, Hsueh Sung Tung, Haluk Kopkalli, Gustavo Cerri
  • Publication number: 20190084906
    Abstract: The present invention relates, in part, to the discovery that, during the fluorination of certain fluoroolefin starting reagents, oligomerization/polymerization of such reagents reduces the conversion process and leads to increased catalyst deactivation. The present invention also illustrates that vaporizing such starting reagents in the presence of one or more organic co-feed reduces such oligomerization/polymerization and improves catalytic stability.
    Type: Application
    Filed: November 20, 2018
    Publication date: March 21, 2019
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou WANG, Hsueh Sung TUNG, Selma BEKTESEVIC, Daniel C. MERKEL, Haluk KOPKALLI, Yuon CHIU
  • Publication number: 20190084905
    Abstract: The present disclosure relates to a process for preparing 2-chloro-3,3,3-trifluorpropene comprising: (a) hydrogenating 1,2-dichloro-3,3,3-trifluoropropene in the presence of a hydrogenation catalyst to form 1,1,1-trifluoro-2,3-dichloropropane and (b) dehydrochlorinating 1,1,1-trifluoro-2,3-dichloropropane in the presence of a dehydrochlorination catalyst to form 2-chloro-3,3,3-trifluorpropene.
    Type: Application
    Filed: September 16, 2016
    Publication date: March 21, 2019
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou WANG, Hsueh Sung Tung
  • Patent number: 10207972
    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: December 1, 2015
    Date of Patent: February 19, 2019
    Assignee: Honeywell international Inc.
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh Sung Tung, Haiyou Wang, Ryan Hulse
  • Publication number: 20190047924
    Abstract: Provided is a process for making 2-chloro-1,1,1,2-tetrafluoropropane. The process has the step of hydrofluorinating 2-chloro-3,3,3-trifluoropropene in the presence of a catalyst selected from the group consisting of SbCl3, SbCl5, SbF5, TiCl4, SnCl4, Cr2O3, and fluorinated Cr2O3.
    Type: Application
    Filed: March 5, 2018
    Publication date: February 14, 2019
    Inventors: Daniel C. Merkel, Robert C. Johnson, Hsueh Sung Tung
  • Publication number: 20190047927
    Abstract: Disclosed is a composition comprised of at least one compound selected from 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoro-1-propene and 1-chloro-3,3,3-trifluoropropene and halogenated impurity selected from the group consisting of HFO-1141 (CH2?CHF), HCFO-1140 (CH2?CHCl), and HCFO-1131 (CH2?CFCl and/or translcis-CHF?CHCl) and combination thereof, said halogenated impurity being present in said composition in an amount of 50 ppm or less.
    Type: Application
    Filed: October 12, 2018
    Publication date: February 14, 2019
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou WANG, Hsueh Sung TUNG
  • Publication number: 20190002374
    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: December 22, 2017
    Publication date: January 3, 2019
    Inventors: Haiyou Wang, Hsueh Sung Tung
  • Patent number: 10131597
    Abstract: The present invention relates, in part, to the discovery that, during the fluorination of certain fluoroolefin starting reagents, oligomerization/polymerization of such reagents reduces the conversion process and leads to increased catalyst deactivation. The present invention also illustrates that vaporizing such starting reagents in the presence of one or more organic co-feed reduces such oligomerization/polymerization and improves catalytic stability.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: November 20, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou Wang, Hsueh Sung Tung, Selma Bektesevic, Daniel C. Merkel, Haluk Kopkalli, Yuon Chiu
  • Publication number: 20180318788
    Abstract: Disclosed is a process to separate halogenated organic contaminants such as 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), 2,3,3,3-tetrafluoropropene (HFO-1234yf), trifluoropropyne (TFPY) from hydrochloric acid (HCl) with an adsorbent selected from an activated carbon, an MFI molecular sieve, a carbon molecular sieve, silica, and combinations thereof.
    Type: Application
    Filed: November 4, 2016
    Publication date: November 8, 2018
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Richard Durick HORWATH, Yuon CHIU, Haluk KOPKALLI, Robert A. SMITH, Haiyou WANG, Michael GATTER, Hsueh Sung TUNG, Daniel C. MERKEL