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: 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: 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: 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: 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
  • Patent number: 10112166
    Abstract: Disclosed is a method for capturing and recycling iron catalyst used in the production of haloalkane compounds and more particularly, to an improved process for the manufacture of the compound 1,1,1,3,3-pentachloropropane (HCC-240fa), in which an electromagnetic separation unit (EMSU) is used to facilitate the reaction. When energized, the EMSU functions to remove all iron particles from the reactor effluent; when de-energized, the iron particles captured by the EMSU can be flushed back into the reactor for re-use in the continued production of HCC-240fa. The present invention is also useful in the manufacturing processes for other haloalkane compounds such as HCC-250 and HCC-360.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: October 30, 2018
    Assignee: Honeywell International Inc.
    Inventors: Joshua Close, Haiyou Wang, Hsueh Sung Tung, Stephen A. Cottrell
  • Publication number: 20180297917
    Abstract: The invention provides a reactor comprising a reaction chamber having a catalytic surface in contact with reactants in said chamber, and a source for passing electrical current through said catalytic surface. The reactor can be used for dehydrohalogentation reactions, such as dehydrochlorination of HCFC-244bb to HFO-1234yf and for reactions where zero valent metals are employed for catalysis. The invention further provides a process to prepare HFO-1234yf from HCFC-244bb using an electrically heated reaction chamber.
    Type: Application
    Filed: October 14, 2016
    Publication date: October 18, 2018
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Haluk KOPKALLI, Ron Joseph ROOF, Yuon CHIU, Hsueh Sung TUNG, Robert A. SMITH
  • Patent number: 10099977
    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: September 16, 2016
    Date of Patent: October 16, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou Wang, Hsueh Sung Tung
  • Patent number: 10087127
    Abstract: The present invention relates, in part, to the discovery that the presence of HF in a HCFC-244bb feedstream in a reaction for the preparation of HFO-1234yf results in selectivity changeover from HFO-1234yf to HCFO-1233xf. By substantially removing HF, it is shown that the selectivity to HFO-1234yf via dehydrochlorination of HCFC-244bb is improved.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: October 2, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou Wang, Hsueh Sung Tung
  • Patent number: 10047026
    Abstract: The present disclosure provides a method for separating 244bb from 1233xf by using solid adsorbent selected from molecular sieves having an average pore size of 5 ? or greater.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: August 14, 2018
    Assignee: HONEYWELL INTERNATIONAL INC
    Inventors: Haiyou Wang, Daniel C. Merkel, Hsueh Sung Tung, Michael Gatter
  • Patent number: 10011546
    Abstract: Provided are azeotropic or azeotrope-like mixtures of 1,1,3,3-tetrachloroprop-1-ene (HCO-1230za) and hydrogen fluoride. Such compositions are useful as feed stock in the production of HFC-245fa and HCFO-1233zd.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: July 3, 2018
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Hsueh Sung Tung, Konstantin A. Pokrovski, Haiyou Wang, Stephen A. Cottrell, Hang T. Pham
  • Patent number: 10011543
    Abstract: In the halogenation reaction of organic olefin compounds, an excess amount of halogen gas (fluorine, chlorine, vaporized bromine and iodine, or their combination) is normally used in order to achieve as complete as possible conversion of the organic starting material. In a conventional process, the excess halogen gas in the off-gas stream is scrubbed by caustic solution which increases the consumption of halogen and generates waste for disposal. The present invention provides a novel process to recover and reuse the excess halogen gas and thus reduce the operating cost of the process.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: July 3, 2018
    Assignee: Honeywell International Inc.
    Inventors: Terris Yang, Hsueh Sung Tung
  • Patent number: 10000431
    Abstract: A process for enhancing the selective and efficient production of (E)-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E), or 1233zd(E)). During the manufacture of HCFO-1233zd(E) by fluorination of 1,1,1,3,3-pentachloropropane (HCC-240fa), a by-product of 1,1,3,3-tetrachloro-1-fluoropropane (HCFC-241fa) is separated and then dehydrochlorinated to form 1,3,3-trichloro-3-fluoropropene (HCFO-1231zd). The HCFO-1231zd is then fluorinated to form HCFO-1233zd(E).
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: June 19, 2018
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Hsueh Sung Tung
  • Patent number: 9994502
    Abstract: A process for enhancing the selective and efficient production of (E)-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E), or 1233zd(E)). During the manufacture of HCFO-1233zd(E) by fluorination of 1,1,1,3,3-pentachloropropane (HCC-240fa), a by-product of 1,3,3-trichloro-1,1-difluoropropane (HCFC-242fa) is separated and then dehydrochlorinated to form 1,3-chloro-3,3-difluoropropene (HCFO-1232zd). The HCFO-1232zd is then fluorinated to form HCFO-1233zd(E).
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: June 12, 2018
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Hsueh Sung Tung
  • Patent number: 9994503
    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: Grant
    Filed: April 4, 2016
    Date of Patent: June 12, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Yuon Chiu, Stephen A. Cottrell, Hsueh Sung Tung, Haluk Kopkalli, Gustavo Cerri
  • Publication number: 20180127339
    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: Application
    Filed: May 26, 2017
    Publication date: May 10, 2018
    Inventors: HAIYOU WANG, HSUEH SUNG TUNG, SUDIP MUKHOPADHYAY
  • Publication number: 20180127337
    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: Application
    Filed: August 21, 2017
    Publication date: May 10, 2018
    Inventors: Hsueh Sung Tung, Ian Shankland
  • Patent number: 9950973
    Abstract: Azeotropic or azeotrope-like mixtures of 1,3-dichloro-3,3-difluoroprop-1-ene (HCFO-1232zd) and hydrogen fluoride (HF). Such compositions are useful as a feed stock or intermediate in the production of 1,1,1,3,3-pentafluoropropane (HFC-245fa),1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and 1,3,3,3-tetrafluoropropene (HFO-1234ze).
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 24, 2018
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh Sung Tung, Haiyou Wang, Ryan J. Hulse, Hang T. Pham
  • Patent number: 9950974
    Abstract: Azeotropic or azeotrope-like mixtures of 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) and hydrogen fluoride (HF). Such compositions are useful as a feed stock or intermediate in the production of 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and 1,3,3,3-tetrafluoropropene (HFO-1234ze).
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 24, 2018
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh Sung Tung, Haiyou Wang, Ryan J. Hulse, Hang T. Pham