Patents Examined by Ngoc-Yen Nguyen
  • Patent number: 11180369
    Abstract: A renewable magnesium removing agent and its use in a preparation of a low-magnesium lithium-rich brine are provided. The magnesium removing agent includes a magnesium phosphate double salt of an alkali metal or ammonium. A regeneration of the magnesium removing agent is realized by adding the magnesium removing agent into Mg2+-containing chloride salt solution, wherein Mg2+ in the chloride salt solution and the magnesium removing agent are subjected to a magnesium removing reaction to form a solid-phase reaction product and carrying out a solid-liquid separation on an obtained mixed reaction product after the magnesium removing reaction is ended to separate the solid-phase material comprising a magnesium phosphate hydrate and then separating out a chlorine salt of the alkali metal or the ammonium from a remaining liquid-phase material, and finally carrying out a regeneration reaction on the magnesium phosphate hydrate and the chlorine salt of the alkali metal or the ammonium.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: November 23, 2021
    Inventors: Dongdong Li, Wu Li, Yaping Dong, Dandan Gao
  • Patent number: 11155471
    Abstract: Bandgap-tunable perovskite compositions are provided having the formula CsPb(A)xBy)3, wherein A and B are each a halogen. The mixed halide perovskite composition has a morphology which suppresses phase segregation to stabilize a tuned bandgap of the mixed halide perovskite composition. For example, the perovskite may be in the form of nanocrystals embedded in a non-perovskite matrix, which, for example, may have the formula Cs4Pb(A)xBy)6, wherein A and B are each a halogen. Solar cells and light-emitting diodes comprising the mixed perovskite compositions are also provided.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: October 26, 2021
    Inventors: Hanwei Gao, Biwu Ma, Yichuan Ling, Xi Wang
  • Patent number: 11142455
    Abstract: A packed bed catalyst in a pressurized vessel/reactor during contact with a dioxide species precursor enhances catalytic conversion of the precursor to the dioxide species, compared with the same catalytic conversion performed in a non-pressurized vessel/reactor.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: October 12, 2021
    Inventors: Richard Sampson, Allison Sampson, James Andrew Mialkowski, Mauricio Mata Nieto
  • Patent number: 11130677
    Abstract: The present disclosure generally relates to producing chloride dioxide. A chlorine dioxide reactor, methods for producing chlorine dioxide, and treating aqueous systems are disclosed. The reactor may include a mixing device, a first feed line in fluid communication with the mixing device, and a second feed line in fluid communication with the mixing device. The reactor may include a proximal portion in fluid communication with the mixing device and a distal portion in fluid communication with a motive water line. The mixing device, the reactor, a portion of the first feed line, and a portion of the second feed line may be positioned within the motive water line.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: September 28, 2021
    Assignee: Ecolab USA Inc.
    Inventors: Kun Xiong, Felice DiMascio, Nicholas Ryan Denny, Shawn Dalke
  • Patent number: 11111156
    Abstract: Process for the production of high purity iridium(III) chloride hydrate, comprising the steps of: (1) providing at least one material selected from the group consisting of solid H2[IrCl6] hydrate, aqueous, at least 1 wt. % H2[IrCl6] solution, and solid IrCl4 hydrate; (2) adding, to the at least one material provided in step (1), at least one monohydroxy compound selected from the group consisting of monohydroxy compounds that are miscible with water at any ratio, primary monoalcohols comprising 4 to 6 carbon atoms, and secondary monoalcohols comprising 4 to 6 carbon atoms at a molar ratio of Ir(IV):monohydroxy compound=1:0.6 to 1000, and allowing to react for 0.2 to 48 hours in a temperature range from 20 to 120° C., followed by removing volatile components from the reaction mixture thus formed.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: September 7, 2021
    Inventors: Richard Walter, Jörg Fuchs Alameda, Christian Imgrund, Christian Neumann
  • Patent number: 11104585
    Abstract: A method of producing uranium halides is disclosed in which chlorine gas is introduced into a liquid uranium-nickel alloy. NaCl salt is surrounding the crucible containing the liquid uranium-nickel alloy, producing a eutectic mixture of NaCl—UCl3. Upon chlorination, the metal halide dissolves in the matrix salt forming a solution. Adding the reactant metal, uranium to the nickel, the alloy is able to remain molten throughout processing. The liquid metal alloy may be removed from the salt bath, while the halogen gas continues to enter the system through the sparge until the desired composition of NaCl—UCl3—UCl4 is achieved. The method and system can be used to produce other metal halide salts such as actinide, lanthanide or transition metal halides contained in a matrix salt consisting of alkali and/or alkaline earth halides.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: August 31, 2021
    Inventors: Mark A. Williamson, James L. Willit
  • Patent number: 11104582
    Abstract: The invention relates to a method for cleaving silicon-silicon bindings and/or silicon-chlorine bindings in monosilanes, polysilanes, and/or oligosilanes. According to the invention, the monosilane, polysilane, and/or oligosilane is dissolved or suspended in an ether or in an ether-hydrochloric acid solution. Said method is used for example for preparing halogenated oligosilanes from halogenated polysilanes and for preparing siloxanes from organochlorosilanes and chlorinated monosilanes. Said method is particularly simple to carry out and as a result is economical.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: August 31, 2021
    Assignee: Momentive Performance Materials GmbH
    Inventors: Norbert Auner, Max C. Holthausen, Felix Neumeyer
  • Patent number: 11097949
    Abstract: In the present invention, a bis (fluorosulfonyl) imide metal salt is an alkali metal salt of bis (fluorosulfonyl) imide or an alkaline earth metal salt of bis (fluorosulfonyl) imide. The bis (fluorosulfonyl) imide metal salt has an average particle diameter of not less than 0.1 mm, or has an average moisture absorption rate of not more than 2.5 mass ppm/cm2·min when sealed in a PE bag having a thickness of 80 ?m and left for 30 minutes at 23° C. and 65% humidity.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: August 24, 2021
    Inventors: Kenji Yamada, Hirotsugu Shimizu, Hiromoto Katsuyama, Hiroyuki Mizuno, Yasunori Okumura, Naohiko Itayama, Yukihiro Fukata, Yuichi Sato, Yasuhiro Higuchi, Takahiro Yamauchi
  • Patent number: 11072528
    Abstract: Disclosed herein are embodiments of a method and system for producing a halogen gas. The method may comprise contacting a solid oxidizing agent with a vapor comprising a halide compound, to produce a gas stream comprising a halogen corresponding to the halide in the halide compound. The halide compound may be an acyl halide, such as an acetyl halide or an oxalyl halide. The oxidizing agent may be any suitable oxidizing agent, and in certain examples, potassium permanganate is used. The method may be performed under a reduced pressure. Also disclosed herein is a system suitable to perform the disclosed method. The system may comprise a reservoir, an oxidizing agent support and a gas stream outlet.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: July 27, 2021
    Assignee: FEI Company
    Inventor: Clive Chandler
  • Patent number: 11072527
    Abstract: The method for producing chlorine by oxidation of hydrogen chloride with oxygen in the presence of a catalyst in a fixed-bed reactor, wherein [I] a material containing hydrogen chloride and oxygen is allowed to contact a catalyst in a temperature range of 280 to 370° C., and [II] the material containing hydrogen chloride and oxygen has an oxygen concentration of 45 to 75 vol %.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: July 27, 2021
    Inventors: Masami Murakami, Hideharu Kuwamoto, Kenji Iwata
  • Patent number: 11072534
    Abstract: Industrial-scale production of diiodosilane through reaction between phenylsilane and iodine is safely and efficiently performed. Provided is a diiodosilane producing method wherein reaction is started between phenylsilane and iodine at a low temperature, the method including at least the step of, after dropping and mixing step finishes, pumping a reaction solution little by little continuously while raising a temperature thereof.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: July 27, 2021
    Inventors: Naoto Kimura, Yasushi Yamamoto, Shigeaki Yonemori
  • Patent number: 11066310
    Abstract: Conditioning of tungsten pentachloride to form specific crystalline phases is disclosed. The specific crystalline phases permit stable vapor pressures over extended periods of time during vapor deposition and etching processes.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: July 20, 2021
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Feng Li, Sonia Plaza, Jean-Marc Girard, Nicolas Blasco, Yumin Liu
  • Patent number: 11058984
    Abstract: Provided are a method for treating sulfur hexafluoride and an apparatus for collecting and treating by-products. The method for treating sulfur hexafluoride, and the apparatus for collecting and treating by-products according to the present invention are a significantly effective method and apparatus capable of safely treating sulfur hexafluoride at low cost.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: July 13, 2021
    Inventors: In-Ha Jung, Jae-Yong Ryu, Myun-Joo Lee
  • Patent number: 11040881
    Abstract: A method for preparing a Na3V2(PO4)2F3 material, including at least the steps: a) reducing the vanadium oxide, V2O5, under a reducing atmosphere in the absence of elementary carbon and in the presence of at least one phosphate anion precursor in order to form vanadium phosphate, VPO4; and b) exposing, under an inert atmosphere, a mixture of the VPO4 material obtained in step a) with an effective amount of sodium fluoride, NaF, and at least one hydrocarbon- and oxygen-containing compound which is a source of elementary carbon, to temperature conditions that are favourable for calcining said mixture so as to form said Na3V2(PO4)2F3 compound. Also, a related electrode material, an electrode and a secondary sodium battery using the presented material.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: June 22, 2021
    Inventors: Nikita Hall, Sylvain Boulineau, Laurence Croguennec, Sébastien Launois, Christian Masquelier, Loïc Simonin
  • Patent number: 11040886
    Abstract: Processes for producing beryllium fluoride salt systems containing beryllium fluoride, such as lithium beryllium fluoride salts, are disclosed herein. The processes include mixing ammonium beryllium fluoride with a lithium compound, melting the mixture to form a molten phase, purging the molten phase, and cooling the molten phase. This reduces the number of manufacturing steps needed to obtain the beryllium fluoride containing salt.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: June 22, 2021
    Assignee: Materion Corporation
    Inventors: Edgar E. Vidal, Christopher K. Dorn
  • Patent number: 11034585
    Abstract: Realized is a solid substance concentration managing method which allows quick detection of an abnormality in a chemical reactor. The present invention is an invention of a solid substance concentration managing method of managing a concentration of a solid substance which is contained in a residue that is discharged in a reaction product gas processing step included in a trichlorosilane producing method, the solid substance concentration managing method including a concentration measuring step of measuring the concentration of the solid substance which is contained in an after-crystallization residue that is obtained by crystallizing part of aluminum chloride.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: June 15, 2021
    Inventors: Junichi Ishida, Masami Enokuchi, Isao Yamashita, Yoshikazu Kodama, Hiroyuki Nishimura
  • Patent number: 11027979
    Abstract: The invention relates to a process for hydrogenating silicon tetrachloride in a reactor, wherein a reactant gas containing hydrogen and silicon tetrachloride is heated to a temperature between 850° C. and 1600° C. by means of at least one heating element, which comprises a graphite surface, wherein the temperature of the heating element is between 850° C. and 1600° C. The process is characterized in that a nitrogen compound is added to the reactant gas in a substance amount fraction of 0.1 to 10% based on hydrogen.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: June 8, 2021
    Assignee: WACKER CHEMIE AG
    Inventors: Martin Zettl, Andreas Hirschmann, Uwe Pätzold, Robert Ring
  • Patent number: 10995006
    Abstract: Provided is a method for producing polycrystalline silicon at a lighter environmental load and at low production cost. A method in accordance with the present invention for producing polycrystalline silicon includes: a silicon deposition step; a separation step; a hydrogen chloride removal step; a hydrogen refining step; an activated carbon regeneration step; and a circulation step.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: May 4, 2021
    Inventors: Yuichi Inoue, Masami Enokuchi, Kotaro Okamura
  • Patent number: 10967295
    Abstract: Methods for making high-purity LiFSI salts and intermediate products using one, the other, or both of a reactive-solvent removal/replacement method and an LiFSI purification method. In some embodiments, the reactive-solvent removal/replacement method includes using non-reactive anhydrous organic solvents to remove and/or replace one or more reactive solvents in a crude LiFSI. In some embodiments, the LiFSI purification method includes using anhydrous organic solvents to remove impurities, such as synthesis impurities, from a crude LiFSI. In some embodiments, crude LiFSI can be made using an aqueous-based neutralization process. LiFSI salts and products made using methods of the disclosure are also described, as are uses of such salts and products and electrochemical devices that include such salts and products.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: April 6, 2021
    Assignee: SES Holdings Pte. Ltd.
    Inventors: Rajendra P. Singh, Qichao Hu
  • Patent number: 10961160
    Abstract: A fluoride sintered body suitable for a moderator which moderates high-energy neutrons so as to generate neutrons for medical care with which an affected part of the deep part of the body is irradiated to make a tumor extinct comprises MgF2 of a compact polycrystalline structure having a bulk density of 2.90 g/cm3 or more and as regards mechanical strengths, a bending strength of 10 MPa or more and a Vickers hardness of 71 or more.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: March 30, 2021
    Inventors: Hiroaki Kumada, Tetsuyuki Nakamura, Takuji Shigeoka, Takeshi Ikeda