Patents by Inventor Carlos NAVAR

Carlos NAVAR 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).

  • METHOD FOR REDUCING CHLOROFLUOROCARBON IMPURITIES IN THE MANUFACTURE OF TRANS-1,3,3,3-TETRAFLUOROPROPENE (HFO-1234ze(E))
    Publication number: 20240018074
    Abstract: Two methods for reducing CFC impurities and, in particular, CFC-114, in the HFO-1234ze(E) production process from the reaction of CFC-113 and HF. The first method involves subjecting an intermediate or recycle stream to separation and distillation to purge CFC-113 from the process. The second method involves operating the separation at a higher pressure avoids the formation of an azeotrope between CFC-113 and HFC-245fa. The CFC-113/HFC245fa azeotrope is discussed, as well as other optional processes for removal or mitigation of CFC-113 which include further separations that remove CFC-114 from the HFO-1234ze(E) product and/or CFC-113 from the HFC-245fa feed to produce an HFO-1234ze(E) product that is largely free from CFC-114 and other CFC impurities.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 18, 2024
    Inventors: Richard D. Horwath, Haluk Kopkalli, Gustavo Cerri, Joshua Close, Daniel C. Merkel, Jennifer W. McClaine, Alex C. Fattore, Hang T. Pham, Carlos Navar, Justin Howard
  • METHOD FOR DEHYDROCHLORINATION OF HCFC-244BB TO MANUFACTURE HFO-1234YF
    Publication number: 20230123085
    Abstract: A process for making 2,3,3,3-tetrafluoropropene (HFO-1234yf) includes providing a composition including 2-chloro-1,1,1,2-tetrafluorepropane (HCFC-244bb) to a reactor including a heater surface at a surface temperature greater than about 850° F. (454°C), and then bringing the composition into contact with the heater surface for a contact time of less than 10 seconds to dehydrochlorinate a portion of the HCFC-244bb to make HFO-1234yf.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 20, 2023
    Inventors: Haluk Kopkalli, Carlos Navar, Yuon Chiu, Haiyou Wang
  • Method for dehydrochlorination of HCFC-244bb to manufacture HFO-1234yf
    Patent number: 11555001
    Abstract: A process for making 2,3,3,3-tetrafluoropropene (HFO-1234yf) includes providing a composition including 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) to a reactor including a heater surface at a surface temperature greater than about 850° F. (454° C.), and then bringing the composition into contact with the heater surface for a contact time of less than 10 seconds to dehydrochlorinate a portion of the HCFC-244bb to make HFO-1234yf.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: January 17, 2023
    Assignee: Honeywell International Inc.
    Inventors: Haluk Kopkalli, Carlos Navar, Yuon Chiu, Haiyou Wang
  • METHOD FOR DEHYDROCHLORINATION OF HCFC-244BB TO MANUFACTURE HFO-l234YF
    Publication number: 20210163383
    Abstract: A process for making 2,3,3,3-tetrafluoropropene (HFO-1234yf) includes providing a composition including 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) to a reactor including a heater surface at a surface temperature greater than about 850° F. (454° C.), and then bringing the composition into contact with the heater surface for a contact time of less than 10 seconds to dehydrochlorinate a portion of the HCFC-244bb to make HFO-1234yf.
    Type: Application
    Filed: June 5, 2019
    Publication date: June 3, 2021
    Inventors: Haluk KOPKALLI, Carlos NAVAR, Yuon CHIU, Haiyou WANG