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).

  • 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
  • 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
  • Patent number: 9272968
    Abstract: This invention relates to a process for the suppression of 3,3,3-trifluoropropyne during the manufacture of fluorocarbons, fluoroolefins, hydrochlorofluoroolefins. More particularly, this invention is directed to a process to suppress the formation of 3,3,3-trifluoropropyne during processes for the manufacture of HCFO-1233zd(E), HCFO-1233zd(Z), HFO-1234ze(E), and/or HFO-1234ze(Z).
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 1, 2016
    Assignee: Honeywell International Inc.
    Inventors: Haluk Kopkalli, Jeffrey A. Ball, Yuon Chiu, Hsueh Sung Tung, Konstantin A. Pokrovski, Daniel C. Merkel
  • 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
  • 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
  • Publication number: 20160002128
    Abstract: The present invention discloses high purity E-1-chloro-3,3,3-trifluoropropene (1233zd(E)) and methods to produce the same. More specifically, the present invention discloses the methods of making 1233zd(E) essentially free of toxic impurities (e.g. 2-chloro-3,3,3-trifluoropropene (1233xf), chlorotetrafluoro-propene (1224), and 3,3,3-trifluoropropyne). The present invention further provides methods for making high purity 1233zd(E) with concentration of 1233xf and 1224 at or below 200 parts per million (ppm) and 3,3,3-trifluoropropyne impurities at or below 20 ppm. Formation of 1233xf impurity can be avoided if pure 1,1,1,3,3-pentachloropropane is used as a starting material. It was also found that formation of 1233xf is avoided if a liquid phase manufacturing process is used.
    Type: Application
    Filed: August 31, 2015
    Publication date: January 7, 2016
    Inventors: Konstantin A. Pokrovski, Rajiv Ratna Singh, Ian Shankland, Hsueh Sung Tung
  • 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
  • Patent number: 9227894
    Abstract: The present invention is directed to processes for the production of 1233zd from 240fa and HF, with or without a catalyst, at a commercial scale. The 240fa and HF are fed to a reactor operating at high pressure. The resulting product stream comprising 1233zd, HCl, HF, and other byproducts is treated to one or more purification techniques including phase separation and one or more distillations to provide purified 1233zd, which meets commercial product specifications, i.e., having a GC purity of 99.5% or greater.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: January 5, 2016
    Assignee: Honeywell International Inc.
    Inventors: Stephen A. Cottrell, Hsueh Sung Tung, Konstantin A. Pokrovski
  • 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
  • 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
  • Publication number: 20150361014
    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: May 5, 2015
    Publication date: December 17, 2015
    Inventors: Daniel C. Merkel, Robert C. Johnson, Hsueh Sung Tung
  • 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
  • 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
  • Patent number: 9156752
    Abstract: The present invention discloses high purity E-1-chloro-3,3,3-trifluoropropene (1233zd(E)) and methods to produce the same. More specifically, the present invention discloses the methods of making 1233zd(E) essentially free of toxic impurities (e.g. 2-chloro-3,3,3-trifluoropropene (1233xf), chlorotetrafluoro-propene (1224), and 3,3,3-trifluoropropyne). The present invention further provides methods for making high purity 1233zd(E) with concentration of 1233xf and 1224 at or below 200 parts per million (ppm) and 3,3,3-trifluoropropyne impurities at or below 20 ppm. Formation of 1233xf impurity can be avoided if pure 1,1,1,3,3-pentachloropropane is used as a starting material. It was also found that formation of 1233xf is avoided if a liquid phase manufacturing process is used.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: October 13, 2015
    Assignee: Honeywell International Inc.
    Inventors: Konstantin A. Pokrovski, Rajiv Ratna Singh, Ian Shankland, Hsueh Sung Tung
  • Publication number: 20150274616
    Abstract: The present invention provides a method for the high yield production of HCC-1230xa from the known four step method, wherein the Step 3 crude product (crude HCC-240db) is used directly as the starting material in the Step 4 reaction—but only if the crude HCC-240db contains less than 0.5 wt % of impurities selected from the group consisting of HCC-250fb, HCC-1240za, and mixtures thereof.
    Type: Application
    Filed: March 16, 2015
    Publication date: October 1, 2015
    Inventors: Terris Yang, Hsueh Sung Tung
  • Patent number: 9139499
    Abstract: Provided are methods for forming azeotropic or azeotrope-like mixtures of 1,1,1,3,3-pentachloro-propane (240fa) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of HFC-245fa and HCFO-1233zd.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: September 22, 2015
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Hsueh Sung Tung, Konstantin A. Pokrovski, Hang T. Pham, Ryan Hulse
  • Publication number: 20150224470
    Abstract: The present invention relates to methods, process, and integrated systems for economically producing (E)-1-chloro-3,3,3-trifluoropropene via vapor phase and/or liquid processes.
    Type: Application
    Filed: April 28, 2015
    Publication date: August 13, 2015
    Inventors: Hsueh Sung Tung, Konstantin A. Pokrovski, Daniel C. Merkel, Robert Johnson
  • Publication number: 20150225316
    Abstract: The present invention relates to a hydrofluorinating process which comprises reacting a fluoroolefin with hydrogen fluoride in the liquid phase in the presence of a hydrofluorination catalyst in the reaction zone of a reactor, said reactor comprised of a reactor body having a length to diameter ratio of about 2:1 or greater; a stirred reaction zone containing said hydrofluorination catalyst, which may be prepared in situ, at least one inlet for supplying said hydrogen fluoride and fluoroolefin to the reaction zone and at least one outlet for recovering said fluoroalkane, said stirrer disposed in the reaction zone and comprising a plurality of blades fixedly attached to shaft drivable by a motor, said blades extending from about the bottom of the reaction zone to about the top of the reaction zone and said shaft extending on a longitudinal axis from the bottom of the reactor to the top of the reactor, said stirrer being rotated at a speed sufficient to promote a swirling of the liquid to effect the occurrence
    Type: Application
    Filed: February 10, 2015
    Publication date: August 13, 2015
    Inventors: Daniel C. MERKEL, Barry Asher MAHLER, Hsueh Sung TUNG, Mario Joseph NAPPA
  • Publication number: 20150197468
    Abstract: The present invention is directed to processes for the production of 1233zd from 240fa and HF, with or without a catalyst, at a commercial scale. The 240fa and HF are fed to a reactor operating at high pressure. The resulting product stream comprising 1233zd, HCl, HF, and other byproducts is treated to one or more purification techniques including phase separation and one or more distillations to provide purified 1233zd, which meets commercial product specifications, i.e., having a GC purity of 99.5% or greater.
    Type: Application
    Filed: January 30, 2015
    Publication date: July 16, 2015
    Inventors: Stephen A. Cottrell, Hsueh Sung Tung, Konstantin A. Pokrovski
  • Publication number: 20150166442
    Abstract: Provided are methods for forming azeotropic or azeotrope-like mixtures of 1,1,1,3,3-pentachloro-propane (240fa) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of HFC-245fa and HCFO-1233zd.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 18, 2015
    Inventors: Daniel C. Merkel, Hsueh Sung Tung, Konstantin A. Pokrovski, Hang T. Pham, Ryan Hulse