Patents Examined by Amy C Bonaparte
  • Patent number: 10975015
    Abstract: A process for producing ethylene and acetic acid is proposed in which an ethane- and oxygen-containing reaction input stream is formed and a portion of the ethane and of the oxygen in the reaction input stream is converted into the ethylene and the acetic acid by oxidative dehydrogenation to obtain a process gas, wherein the process gas contains the unconverted portion of the ethane and of the oxygen, the ethylene and the acetic acid and also water. It is provided that the process comprises adjusting in the process gas a water partial pressure according to a specified product ratio of the acetic acid to the ethylene to a value in a range between 0.7 and 5 bar (abs.). A corresponding plant (100) likewise forms part of the subject matter of the present invention.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: April 13, 2021
    Inventors: Mathieu Zellhuber, Florian Winkler, Martin Schubert, Andreas Meiswinkel
  • Patent number: 10968159
    Abstract: Method for manufacturing terephthalic acid includes following steps: providing a titrant receptor solution, the titrant receptor solution being water; adding disodium terephthalate aqueous solution and an acid titrant into the titrant receptor solution to form terephthalic acid crystals and an end-point solution, and separating the terephthalic acid crystals from the end-point solution.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: April 6, 2021
    Inventors: Po-Chen Lai, Jyun-Sian Lee, Sih-Hao Chiang, Chin-Shui Liang, Hsiang-Chin Tsai
  • Patent number: 10968165
    Abstract: The present invention relates to a method for purifying polyaspartic acid ester compositions and to the provision of polyaspartic acid ester compositions that contain 0.01 to <2% by weight fumaric acid dialkyl esters.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: April 6, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Dorota Greszta-Franz, Christian Drumm, Jan Morbach, Reiner Witkowski
  • Patent number: 10961264
    Abstract: Provided herein is a process for isolating at least one (thio)phosphoric acid derivative, which has a boiling point of at least 70° C., from a product mixture including the at least one (thio)phosphoric acid derivative, at least one salt selected from ammonium salts and alkali metal chlorides, at least one polar solvent selected from the group consisting of ester solvents and ether solvents, and optionally at least one HCl scavenger; wherein the process is based on first dissolving the (thio)phosphoric acid derivative to be able to remove the at least one salt, and then causing solids formation of the (thio)phosphoric acid derivative.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: March 30, 2021
    Assignee: BASF SE
    Inventors: Tobias Lang, Zoltan Baan, Philip Muelheims, Anton Flajs, Hartmut Denecke
  • Patent number: 10954256
    Abstract: Provided herein is a use of a high-boiling solvent in a mixture comprising a (thio)phosphoric acid derivative and a process including the addition of a high-boiling solvent to a mixture comprising a (thio)phosphoric acid derivative to recover the (thio)phosphoric acid from the mixture by an evaporation process.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 23, 2021
    Assignee: BASF SE
    Inventors: Tobias Lang, Karl-Heinrich Schneider, Zoltan Baan, Philip Muelheims, Steffen Tschirschwitz, Sascha Shuxia Zhu
  • Patent number: 10954187
    Abstract: A process for producing ammonia and a derivative of ammonia from a natural gas feed comprising conversion of natural gas into a make-up synthesis gas; synthesis of ammonia; use of said ammonia to produce said derivative of ammonia, wherein a portion of the natural gas feed is used to fuel a gas engine; power produced by said gas engine; is transferred to at least one power user of the process, such as a compressor; heat is re-covered from exhaust gas of said gas engine; and at least part of said heat may be recovered as low-grade heat available at a temperature not greater than 200° C., to provide process heating to at least one thermal user of the process, such as CO2 removal unit or absorption chiller; a corresponding plant and method of modernization are also disclosed.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: March 23, 2021
    Assignee: Casale SA
    Inventors: Geoffrey Frederick Skinner, Raffaele Ostuni
  • Patent number: 10941103
    Abstract: A process for continuously preparing a butyl acrylate H2C?CH—C(?O)OR, with R=n-butyl or isobutyl, wherein aqueous 3-hydroxypropionic acid is converted under dehydrating and esterifying conditions in the presence of the corresponding butanol R—OH in a reactor with a rectification column and butyl acrylate formed, unconverted butanol and water used and formed are distilled off overhead as a ternary azeotrope, after separation into a liquid aqueous phase and liquid organic phase each of the aqueous and organic phases is at least partly discharged, and the organic phase comprising the butyl acrylate and the butanol is subjected to distillative separation.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: March 9, 2021
    Assignee: BASF SE
    Inventors: Ortmund Lang, Tim Blaschke, Christian Raith, Michael Schafranka, Claus Hechler
  • Patent number: 10941111
    Abstract: Disclosed herein is a continuous manufacturing process for lomustine that has a short residence time and 63 percent yield. Major advantages of this process are that the total production cost for lomustine is lower, the product is higher quality, and the manufacturing operation is safer for production personnel.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: March 9, 2021
    Assignee: Purdue Research Foundation
    Inventors: David H Thompson, Robert Graham Cooks, Christina Ramires Ferreira, Zinia Jaman
  • Patent number: 10934252
    Abstract: The invention discloses a method for the preparation of 2-chloro acetoacetic acid amide or ester by a reaction of acetoacetic acid amide or ester with trichloroisocyanuric acid in the presence of amylene and in the solvent acetone.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: March 2, 2021
    Assignee: Lonza Solutions AG
    Inventors: Simon Kessler, Claudio Arnold, Philipp Studer
  • Patent number: 10934249
    Abstract: N-hydroxyalkylated polyamines, methods of making N-hydroxyalkylated polyamines, and drilling fluids containing N-hydroxyalkylated polyamines are provided, in which the N-hydroxyalkylated polyamine includes Formula (I): where R1 and R2 are independently a —C or —CH group; R3 is an aliphatic hydrocarbyl; R4 and R5 are independently acyclic hydrocarbyls, or R1, R2, R4, and R5 are covalently connected to form a cyclic hydrocarbyl; and R6, R7, R8, and R9 are independently acyclic hydrocarbyls or acyclic heterohydrocarbyls.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: March 2, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Matthew Hilfiger, B. Raghava Reddy
  • Patent number: 10934251
    Abstract: The present invention relates to a process for preparing Lomitapide or its pharmaceutically acceptable salt thereof having high purity with acceptable levels of impurities.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: March 2, 2021
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Bandi Vamsi Krishna, Jambula Mukunda Reddy
  • Patent number: 10927064
    Abstract: The present disclosure relates to a process for the manufacturing of a compound comprising a (meth)acryloyl group, wherein the process comprises the steps of: a) providing a multi-screw extruder comprising a reaction chamber; b) providing reactants and reagents comprising: i. an alcohol or a primary or secondary amine; ii. a base; and iii. a (meth)acryloyl halide or a 3-halopropionyl halide; and c) incorporating the reactants and reagents into the reaction chamber of the multi-screw extruder, thereby forming a reaction product stream comprising the compound comprising a (meth)acryloyl group.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: February 23, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Rudy W. Van Campenhout, Rudolf J. Dams, Eike H. Klunker, Matthias Conradi, Siegfried R. Goeb
  • Patent number: 10927133
    Abstract: The present disclosure provides a process for the preparation of ixazomib citrate.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: February 23, 2021
    Inventors: Prasenjit Prafulla Das, Santosh Richhariya, Hashim Nizar Poovanathil Nagoor Meeran, Mohan Prasad
  • Patent number: 10927063
    Abstract: The present invention relates to a process for the preparation of halogenated carboxylic anhydrides, e.g. for the preparation of trifluoroacetic anhydride. The preparation is achieved by reacting a halogenated carboxylic acid, e.g. trifluoroacetic acid, with sulfuric acid, oleum and/or disulfuric acid.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: February 23, 2021
    Assignee: SOLVAY SA
    Inventors: Heinz Rudi Feist, Werner Rudolph
  • Patent number: 10919832
    Abstract: Provided is a method for preparing a lower unsaturated fatty acid ester, which comprises carrying out an aldol condensation reaction between dimethoxymethane (DMM) and a lower acid or ester with a molecular formula of R1—CH2—COO—R2 on an acidic molecular sieve catalyst in an inert atmosphere to obtain a lower unsaturated fatty acid or ester(CH2?C(R1)—COO—R2), wherein R1 and R2 are groups each independently selected from the group consisting of H— and C1-C4 saturated alkyl group.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: February 16, 2021
    Assignee: Dalian Institute of Chemical Physics, Chinese Academy of Sciences
    Inventors: Zhanling Ma, Wenliang Zhu, Xiangang Ma, Hongchao Liu, Yong Liu, Youming Ni, Shiping Liu, Qiwei Chen, Zhongmin Liu
  • Patent number: 10906858
    Abstract: The present invention relates to a method for processing acetic acid solvent in Crude Terephthalic Acid (CTA) in an oxidized unit of a pure terephthalic acid (PTA) industrial apparatus. In the present invention, a filter cake in CTA is washed by means of a two-stage-three-step method. The present invention further shortens the production process of solvent exchanging technique of CTA pressure filters, improves production capacity of a device, reduces investment of the device, reduces energy consumption of a system, and solves the shortcomings of the existing CTA solvent exchanging technique of the pressure filters.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: February 2, 2021
    Assignee: Tianhua Institute of Chemical Machinery and Automation Co., Ltd
    Inventors: Xu Zhao, Zhongxin Sun, Wanyao Zhang, Tianbao Wang, Xiangnan Zhai, Yongpeng Tan, Guohai Zhang, Yu Guo, Xiaoling Xie
  • Patent number: 10906863
    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: February 2, 2021
    Inventors: Gennian Mao, Limei Wang, Bin Tian, Xingke Ju, Nan Hui, Juan Li, Guaiping Qiao, Dan Yang, Jingwen Xu, Liang Qi, Wenbo Yao, Han Li, Chengyuan Liang
  • Patent number: 10894764
    Abstract: Precipitation of an ammonium salt is prevented while suppressing an increase in water content of the aqueous urea solution which is to be supplied to a urea granulation step, when recovering and using urea and NH3 in a gas which contains urea dust and NH3 and which arises from a urea granulation step.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: January 19, 2021
    Inventors: Shuhei Nakamura, Akiko Sugiura, Keigo Sasaki
  • Patent number: 10894761
    Abstract: Disclosed are a recyclable clean fracturing fluid thickener, a preparation method and a recovery method thereof, and a high-temperature resistant clean fracturing fluid, which relate to the stimulation treatment of oil and gas fields. Diethanolamine and thionyl chloride are used as raw materials and reacted to obtain an intermediate, which is then reacted with an unsaturated fatty acid amidopropyl dimethylamine to produce the recyclable clean fracturing fluid thickener. The clean fracturing fluid can be used in the fracturing stimulation treatment of low and medium permeability reservoirs.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: January 19, 2021
    Inventors: Xiaojiang Yang, Jincheng Mao, Heng Zhang
  • Patent number: 10870584
    Abstract: An integrated process for production of urea and urea-ammonium sulphate (“UAS”) comprises: a urea synthesis step carried out in a urea synthesis reactor; a recovery and concentration step, wherein a urea solution produced in the urea synthesis step is progressively concentrated in at least one recovery section and in a concentration section, recovering unreacted ammonia and carbon dioxide and water from said urea solution; a step of producing ammonium sulphate by reaction of sulphuric acid and ammonia in an ammonium sulphate production apparatus; a step of mixing said ammonium sulphate with concentrated urea coming from the concentration section to produce a UAS mixture; in the ammonium sulphate production step, at least a part of the ammonia is provided by at least one off-gas containing ammonia and recovered from the recovery and concentration step.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: December 22, 2020
    Assignee: SAIPEM S.p.A.
    Inventors: Lorenzo Bruno, Lino Carlessi