Patents Examined by Jafar F. Parsa
  • Patent number: 10781153
    Abstract: A method of recovering 2-ethyl hexanol (2-EH) from crude alcohol that includes the 2-ethyl hexanol, 2-ethyl, 3-propyl acrolein (EPA), and 2-ethylhexanal (EHA) is disclosed. The crude alcohol stream is first separated into a first stream of primarily 2-EH, a second stream of primarily EPA and 2-EH collectively, and a third stream of primarily 2-EH and EHA collectively. The second stream and the third stream are combined to form a combined stream. The combined stream is processed further to form a first product stream comprising primarily 2-EH and a second product stream comprising primarily, 2-EH, EHA, and EPA collectively.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: September 22, 2020
    Inventors: Jagan Mohan Rallapalli, Ameen Ghamdi-Al, Somak Paul
  • Patent number: 10781163
    Abstract: A process of preparation of O-Desmethyl tramadol through potassium hydroxide mediated demethylation of Tramadol under phase transfer conditions.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: September 22, 2020
    Inventors: Ramesha Andagar Ramakrishna, Sidde Gowda
  • Patent number: 10774271
    Abstract: A unique process and catalyst is described that operates efficiently for the direct production of a high cetane diesel type fuel or diesel type blending stock from stochiometric mixtures of hydrogen and carbon monoxide. This invention allows for, but is not limited to, the economical and efficient production high quality diesel type fuels from small or distributed fuel production plants that have an annual production capacity of less than 10,000 barrels of product per day, by eliminating traditional wax upgrading processes. This catalytic process is ideal for distributed diesel fuel production plants such as gas to liquids production and other applications that require optimized economics based on supporting distributed feedstock resources.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: September 15, 2020
    Assignee: Greyrock Technologies, LLC
    Inventors: Robert Schuetzle, Dennis Schuetzle
  • Patent number: 10766854
    Abstract: The present invention relates to a process for synthesis of a compound according to Formula (A): wherein R1 is a substituted or unsubstituted aryl having 6 to 20 carbon atoms; preferably substituted or unsubstituted phenyl; R2 is a straight or branched alkyl having 1 to 12 carbon atoms; and R3 is a straight or branched alkyl having 1 to 12 carbon atoms; starting from a di-keto compound according to Formula (B) wherein R3 is as shown above, which compound is converted into a ketoenamine compound according to Formula (C) wherein R2 and R3 are as shown above, which ketoenamine compound is then reduced to an amino alcohol according to Formula (D), wherein R2 and R3 are as shown above, that is subsequently converted into a compound according to Formula (A): characterized in that the ketoenamine is reduced into an amino alcohol using a nickel aluminium alloy in an aqueous solution of an inorganic base.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: September 8, 2020
    Inventors: Shirish Shrikant Abhyankar, Abbas-Alli Ghudubhai Shaikh, Sivalingam Gunasekaran, Jaiprakash Brijlal Sainani
  • Patent number: 10766848
    Abstract: The present invention relates to the use of at least two phenol derivatives jointly with at least one ancillary polymerization inhibitor which is different from these two phenol derivatives and particularly is selected from phenol derivatives, amine derivatives, thiazine derivatives, nitroso compounds, N-oxyl derivatives, metal salts, quinone derivatives, and mixtures thereof, to inhibit the polymerization of ethylenically unsaturated monomers comprising at least one heteroatom, it being also possible for a dispersant to be incorporated. The present invention also relates to a corresponding polymerization-inhibiting composition and to the corresponding process for preparing ethylenically unsaturated monomers comprising at least one heteroatom, and particularly acrylic monomers.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: September 8, 2020
    Inventors: Christelle Chretien, Karel Vits, Lars Fischer, Yan Shi
  • Patent number: 10766837
    Abstract: The invention refers to a process for the production of 2,3,3,3-tetrafluoropropene carried out starting from a starting composition comprising the stages of bringing the starting composition into contact, in the presence of a catalyst, with HF in order to produce a composition A comprising 2,3,3,3-tetrafluoropropene (HFO-1234yf), intermediate products B consisting of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), 1,1,1,2,2-pentafluoropropane (HFC-245cb), and byproducts C consisting of E-1-chloro-3,3,3-trifluoro-1-propene (HCFO-1233zdE), trans-1,3,3,3-tetrafluoro-1-propene (HFO-1234zeE) and 1,1,1,3,3-pentafluoropropane (HFC-245fa); recovery of said composition A and purification of the latter in order to form and recover a first gas stream G1 comprising HCl, 2,3,3,3-tetrafluoropropene (HFO-1234yf), a part of the unreacted HF, a part of the intermediate products B and a part of the byproducts C; and a stream, which is preferably liquid, L1 comprising a part of the unreacted HF, a part of the intermediate produc
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: September 8, 2020
    Assignee: Arkema France
    Inventors: Dominique Deur-Bert, Anne Pigamo, Laurent Wendlinger
  • Patent number: 10759734
    Abstract: A process of preparing compounds of general formula I, by cuprate coupling of a vinyl cuprate of general formula II with a protected enone of general formula IV to produce a compound of general formula (V) removing the protecting groups of the compound of general formula (V) and purifying the compound of general formula (I) by chromatography; wherein the vinyl cuprate of formula (II) is prepared by reacting a vinyl stannane of formula III with copper halide CuX and alkyllithium R1Li and wherein an excess of the alkyllithium is decomposed before the said coupling reaction.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: September 1, 2020
    Inventors: Irén Hortobágyi, István Lászlófi, Zsuzsanna Kardos, József Molnár, László Takács, Kornélia Horváth
  • Patent number: 10759732
    Abstract: A process for preparing an ester of (meth)acrylic acid or a derivative thereof comprises reacting (meth)acrylic acid or a derivative thereof with glycerol carbonate at a reaction temperature of 10 to 150° C. without a solvent in the presence of at least one enzyme catalyzing the esterification reaction.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: September 1, 2020
    Assignee: BASF SE
    Inventors: Mathieu Blanchot, Uwe Meisenburg, Steffen Maurer, Jochen Petzoldt, Tobias Hoefener, Boris Breitscheidel, Andrea Misske, Friederike Fleischhaker, Martin Kaller, Christoph Fleckenstein, Ulrik Stengel, Ritesh Nair
  • Patent number: 10759738
    Abstract: The present invention provides a process for preparation of isoproterenol hydrochloride (1a) comprising catalytic hydrogenation of 3?,4?-dihydroxy-2-(isopropylamino)-acetophenone hydrochloride (5a) in presence of an ion exchange resin, to provide isoproterenol hydrochloride (1a).
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: September 1, 2020
    Inventors: Mukund Keshav Gurjar, Shashikant Gangaram Joshi, Jagannath Tulsiram Jagtap, Sachin Arvind Badhe
  • Patent number: 10759728
    Abstract: The invention relates to an improved process and system for the synthesis of dimethyl ether (DME) from a feedstock comprising H2 and COx, wherein x=1-2. The process according to the invention comprises (a) subjecting the gaseous mixture comprising synthesis gas originating from step (c) to DME synthesis by contacting it with a catalyst capable of converting synthesis gas to DME to obtain a gaseous mixture comprising DME; (b) subjecting a gaseous mixture comprising the gaseous mixture originating from step (a) to a separation-enhanced reverse water gas shift reaction; and (c) subjecting the gaseous mixture originating from step (b) to DME/synthesis gas separation to obtain DME and a gaseous mixture comprising synthesis gas, which is recycled to step (a). Herein, the feedstock is introduced in step (a) or step (b) and the molar ratio of H2 to COx in the gaseous mixture which is subjected to step (b) is at least (x+0.8). Also a system for performing the reaction according to the invention is disclosed.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: September 1, 2020
    Inventors: Franciscus Petrus Felix Van Berkel, Hendricus Adrianus Johannes Van Dijk, Paul Dean Cobden, Willem Gerrit Haije, Jaap Ferdinand Vente
  • Patent number: 10751711
    Abstract: The present invention relates to a process for treating a catalyst to improve performance, and more specifically to a process for treating a Fischer-Tropsch catalyst using a high hydrogen syngas to improve catalyst performance.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: August 25, 2020
    Assignee: BP p.l.c.
    Inventors: Ewen James Ferguson, Manuel Ojeda Pineda, Alexander James Paterson
  • Patent number: 10745341
    Abstract: A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting in a tubular reactor having at least four zones a mixture comprising methacrolein, methanol, oxygen and a base with a catalyst bed of heterogeneous catalyst comprising a support and a noble metal, wherein reaction zones comprising catalyst beds alternate with mixing zones not comprising catalyst beds.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: August 18, 2020
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Dmitry A. Krapchetov, Kirk W. Limbach, Daniel A. Hickman, Jeffrey Herron, Kurt W. Olson, D. Wayne Blaylock
  • Patent number: 10745342
    Abstract: The disclosure provides a synthesis method of 2,4,6-trifluorobenzylamine, belonging to the technical field of chemical synthesis. The synthesis method is characterized by comprising the following steps: (1) allowing pentachlorobenzonitrile as a raw material to undergo fluoridation reaction with a fluoridation agent based on 2,4,6-trifluoro-3,5-dichlorobenzonitrile as a solvent to obtain 2,4,6-trifluoro-3,5-dichlorobenzonitrile; (2) hydrogenating the obtained 2,4,6-trifluoro-3,5-dichlorobenzonitrile with hydrogen in the presence of organic carboxylic acid, based, on palladium carbon as a catalyst to obtain 2,4,6-trifluoro-3,5-dichlorobenzylamine; and (3) hydrogenating the obtained 2,4,6-trifluoro-3,5-dichlorobenzylamine with hydrogen in a solvent in the presence of a catalyst to obtain 2,4,6-trifluorobenzylamine.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: August 18, 2020
    Inventors: Qiliang Yuan, Jie Qian, Xin Lai, Haifeng Chen, Yinhao Chen, Chao Wang
  • Patent number: 10745624
    Abstract: In accordance with the present invention, disclosed herein is a method comprising the steps for producing lower molecular weight hydrocarbons. Also disclosed herein, is a system utilized to produce low molecular weight hydrocarbons.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: August 18, 2020
    Inventors: Labeeb Chaudhary Ahmed, Khalid Karim, Ali Al-Hammad
  • Patent number: 10738077
    Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: August 11, 2020
    Inventors: Wenbo Yao, Guaiping Qiao, Juan Li, Nan Hui, Qiao Zeng, Han Li, Bin Tian, Yongbo Wang, Dan Yang, Jingwen Xu, Liang Qi, Yanjun Li, Chengyuan Liang
  • Patent number: 10730822
    Abstract: The present invention discloses a process for making alicyclic polycarboxylic acids or their derivatives, referring to a process for hydrogenating aromatic polycarboxylic acids or their derivatives in the presence of hydrogen and a catalyst to form alicyclic polycarboxylic acids or their derivatives, and the catalyst comprises at least one active metal of group VIIIB transition elements of the periodic table of elements, and a catalyst support comprising group IIA and group IIIA elements in a specific weight ratio.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: August 4, 2020
    Inventors: Ching-Fa Chi, Ying-Chien Yang, Yi-Hui Chen, Yih-Ping Wang, Chyi-Liuh Ho
  • Patent number: 10723679
    Abstract: Provided is a method for producing (Z)-1-chloro-2,3,3-trifluoro-1-propene where (E)-1-chloro-2,3,3-trifluoro-1-propene and water can be efficiently removed and (Z)-1-chloro-2,3,3-trifluoro-1-propene with higher purity can be obtained at a higher recovery ratio. The method for producing (Z)-1-chloro-2,3,3-trifluoro-1-propene includes: distilling a distillation composition which contains (Z)-1-chloro-2,3,3-trifluoro-1-propene, (E)-1-chloro-2,3,3-trifluoro-1-propene and water to remove (E)-1-chloro-2,3,3-trifluoro-1-propene and water as an azeotropic composition or an azeotropic-like composition.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: July 28, 2020
    Assignee: AGC Inc.
    Inventors: Masahiko Nakamura, Atsushi Fujimori, Mari Ichinokawa, Hidekazu Okamoto, Hiroaki Mitsuoka
  • Patent number: 10723745
    Abstract: Provided is an improved process for the preparation N-[4-[[4-(diethyl amino) phenyl](2,5-disulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-ethylethanaminium inner salt sodium salt (Isosulfan blue) of formula I. It also relates to highly pure novel crystalline form of Isosulfan blue hydrate and its process for the preparation thereof. It also relates to an improved process for the preparation of Isosulfan blue sodium hydrate having not more than 0.2% of desethyl impurity of formula A.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: July 28, 2020
    Inventors: Manik Reddy Pullagurla, Mecheril Valsan Nanda Kumar, Bhaskar Reddy Pitta, Suresh Babu Namana, Jagadeesh Babu Rangisetty, Sadashiv Choppari
  • Patent number: 10723624
    Abstract: Described herein is an improved conversion of nitrous oxide (N2O) present as a by-product in a chemical process to NOx which can be further converted to a useful compound or material, such as nitric acid.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: July 28, 2020
    Assignee: Ascend Performance Materials Operations LLC
    Inventors: Gregory E. Bush, Darrick K. Elmore, Mikhail I. Khramov
  • Patent number: 10717690
    Abstract: Provided is a method of manufacturing octafluorocyclopentene by bringing 1-chloroheptafluorocyclopentene into contact with an alkali metal fluoride. The manufacturing method includes a feedstock heating step of heating 1-chloroheptafluorocyclopentene to not lower than 40° C. and not higher than 55° C. and a fluorination step of maintaining a suspension containing a polar aprotic solvent and an alkali metal fluoride at 85° C. or higher while supplying heated 1-chloroheptafluorocyclopentene into the suspension and performing fluorination thereof to obtain octafluorocyclopentene.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: July 21, 2020
    Inventor: Tatsuya Sugimoto