Patents by Inventor KONSTANTIN POKROVSKI

KONSTANTIN POKROVSKI 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: 9758450
    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: April 8, 2016
    Date of Patent: September 12, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou Wang, Selma Bektesevic, Daniel C. Merkel, Hsueh Sung Tung, Konstantin A. Pokrovski
  • Publication number: 20170247304
    Abstract: Disclosed are processes for a high temperature isomerization reaction converting (E)-1-chloro-3,3,3-trifluoropropene to (Z)-1-chloro-3,3,3-trifluoropropene. In certain aspects of the invention, such a process includes contacting a feed stream with a heated surface, where the feed stream includes (E)-1-chloro-3,3,3-trifluoropropene or mixture of (E)-1-chloro-3,3,3-trifluoropropene with (Z)-1-chloro-3,3,3-trifluoropropene. The resulting product stream includes (Z)-1-chloro-3,3,3-trifluoropropene and (E)-1-chloro-3,3,3-trifluoropropene, where the ratio of (Z) isomer to (E) isomer in the product stream is higher than the ratio feed stream. The (E) and (Z) isomers in the product stream may be separated from one another.
    Type: Application
    Filed: May 5, 2017
    Publication date: August 31, 2017
    Inventors: Konstantin A. Pokrovski, Daniel C. Merkel, Hsueh S. Tung
  • Publication number: 20170183278
    Abstract: Provided are azeotropic and azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) and hydrogen fluoride (HF). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).
    Type: Application
    Filed: October 10, 2016
    Publication date: June 29, 2017
    Inventors: Hang T. Pham, Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh S. Tung, Rajiv R. Singh
  • Patent number: 9682905
    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: June 20, 2017
    Assignee: Honeywell International Inc.
    Inventors: Stephen A. Cottrell, Hsueh Sung Tung, Konstantin A. Pokrovski
  • Publication number: 20170166500
    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: Application
    Filed: February 28, 2017
    Publication date: June 15, 2017
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh S. Tung, Haiyou Wang
  • Patent number: 9650320
    Abstract: Disclosed are processes for a high temperature isomerization reaction converting (E)-1-chloro-3,3,3-trifluoropropene to (Z)-1-chloro-3,3,3-trifluoropropene. In certain aspects of the invention, such a process includes contacting a feed stream with a heated surface, where the feed stream includes (E)-1-chloro-3,3,3-trifluoropropene or mixture of (E)-1-chloro-3,3,3-trifluoropropene with (Z)-1-chloro-3,3,3-trifluoropropene. The resulting product stream includes (Z)-1-chloro-3,3,3-trifluoropropene and (E)-1-chloro-3,3,3-trifluoropropene, where the ratio of (Z) isomer to (E) isomer in the product stream is higher than the ratio feed stream. The (E) and (Z) isomers in the product stream may be separated from one another.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: May 16, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Konstantin A. Pokrovski, Daniel C. Merkel, Hsueh S. Tung
  • Patent number: 9643903
    Abstract: Disclosed is process for the production of (E) 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E)) by conducting a continuous reaction without the use of a catalyst. Also disclosed is an integrated system for producing hydrofluoro olefins, particularly 1233zd(E). The manufacturing process includes six major unit operations: (1) a fluorination reaction of HCC-240fa (in continuous or semi-batch mode) using HF with simultaneous removal of by-product HCl and the product 1233zd(E); (2) recycle of unreacted HCC-240fa and HF together with under-fluorinated by-products back to (1); (3) separation and purification of by-product HCl; (4) separation of excess HF back to (1); (5) purification of final product, 1233zd(E); and (6) isomerization of by-product 1233zd(Z) to 1233zd(E) to maximize the process yield.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: May 9, 2017
    Assignee: Honeywell International Inc.
    Inventors: Konstantin A. Pokrovski, Daniel C. Merkel, Hsueh Sung Tung
  • Publication number: 20170029352
    Abstract: Provided herein are systems, and methods of using such systems, for producing acrylic acid from ethylene oxide and carbon monoxide on an industrial scale. The production system/production process has various unit operations, including, for example, a ?-propiolactone production system/production process configured to produce ?-propiolactone from ethylene oxide and carbon monoxide; a polypropiolactone production system/production process configured to produce polypropiolactone from ?-propiolactone; and a glacial acrylic acid production system/production process configured to produce acrylic acid with a high purity by thermolysis of polypropiolactone.
    Type: Application
    Filed: July 29, 2016
    Publication date: February 2, 2017
    Inventors: Sadesh H. Sookraj, Konstantin A. Pokrovski, John B. Ruhl, Dmitry Vinograd, Michael A. Slowik
  • Patent number: 9556091
    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: November 23, 2015
    Date of Patent: January 31, 2017
    Assignee: Honeywell International Inc.
    Inventors: Stephen A. Cottrell, Hsueh Sung Tung, Konstantin A. Pokrovski
  • Patent number: 9463432
    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: Grant
    Filed: April 28, 2015
    Date of Patent: October 11, 2016
    Assignee: Honeywell International Inc.
    Inventors: Hsueh Sung Tung, Konstantin A. Pokrovski, Daniel C. Merkel, Robert Johnson
  • Patent number: 9464013
    Abstract: Provided are azeotropic and azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) and hydrogen fluoride (HF). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: October 11, 2016
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Hang T. Pham, Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh S. Tung, Rajiv R. Singh
  • Publication number: 20160221902
    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: Application
    Filed: April 11, 2016
    Publication date: August 4, 2016
    Inventors: Daniel C. Merkel, Hsueh Sung Tung, Konstantin A. Pokrovski, Haiyou Wang, Stephen A. Cottrell, Hang T. Pham
  • Publication number: 20160221898
    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: Application
    Filed: April 8, 2016
    Publication date: August 4, 2016
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Haiyou WANG, Selma BEKTESEVIC, Daniel C. MERKEL, Hsueh SUNG TUNG, Konstantin A. POKROVSKI
  • Publication number: 20160185692
    Abstract: Disclosed are processes for a high temperature isomerization reaction converting (E)-1-chloro-3,3,3-trifluoropropene to (Z)-1-chloro-3,3,3-trifluoropropene. In certain aspects of the invention, such a process includes contacting a feed stream with a heated surface, where the feed stream includes (E)-1-chloro-3,3,3-trifluoropropene or mixture of (E)-1-chloro-3,3,3-trifluoropropene with (Z)-1-chloro-3,3,3-trifluoropropene. The resulting product stream includes (Z)-1-chloro-3,3,3-trifluoropropene and (E)-1-chloro-3,3,3-trifluoropropene, where the ratio of (Z) isomer to (E) isomer in the product stream is higher than the ratio feed stream. The (E) and (Z) isomers in the product stream may be separated from one another.
    Type: Application
    Filed: October 19, 2015
    Publication date: June 30, 2016
    Inventors: Konstantin A. Pokrovski, Daniel C. Merkel, Hsueh S. Tung
  • 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
  • Patent number: 9334210
    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: March 13, 2013
    Date of Patent: May 10, 2016
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Hsueh Sung Tung, Konstantin A. Pokrovski, Haiyou Wang, Stephen A. Cottrell, Hang T. Pham
  • Patent number: 9334207
    Abstract: Disclosed is an integrated manufacturing process to co-produce (E)1-chloro-3,3,3-trifluoropropene, (E)1,3,3,3-tetrafluoropropene, and 1,1,1,3,3-pentafluoro-propane starting from a single chlorinated hydrocarbon feed stock, 240fa. The process includes a combined liquid or vapor phase reaction/purification operation which directly produces (E)1-chloro-3,3,3-trifluoropropene (1233zd(E)) from 240fa. In the second liquid phase fluorination reactor 1233zd(E) is contacted with HF in the presence of catalyst to produce 1,1,1,3,3-pentafluoropropane (245fa) with high conversion and selectivity. A third reactor is used for dehydrofluorination of 245fa to produce (E)1,3,3,3-tetrafluoropropene (1234ze(E)) by contacting in the liquid phase with a caustic solution or in the vapor phase using a dehydrofluorination catalyst. This operation may be followed by one or more purification processes to recover the 1234ze(E) product.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: May 10, 2016
    Assignee: Honeywell International Inc.
    Inventors: Konstantin A. Pokrovski, Daniel C. Merkel, Haiyou Wang, Hsueh Sung Tung, Ian Shankland
  • 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
  • Publication number: 20160083316
    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: November 23, 2015
    Publication date: March 24, 2016
    Inventors: Stephen A. Cottrell, Hsueh Sung Tung, Konstantin A. Pokrovski
  • 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