Patents Examined by Anthony J Zimmer
  • Patent number: 11964260
    Abstract: Provided is a method for manufacturing a catalyst with which it is possible to obtain a supported metal ammonia synthesis catalyst, in which there are restrictions in terms of producing method and producing facility, and particularly large restrictions for industrial-scale producing, in a more simple manner and so that the obtained catalyst has a high activity. This method for manufacturing an ammonia synthesis catalyst includes: a first step for preparing 12CaO·7Al2O3 having a specific surface area of 5 m2/g or above; a second step for supporting a ruthenium compound on the 12CaO·7Al2O3; and a third step for performing a reduction process on the 12CaO·7Al2O3 supporting the ruthenium compound, obtained in the second step. This invention is characterized in that the reduction process is performed until the average particle diameter of the ruthenium after the reduction process has increased by at least 15% in relation to the average particle diameter of the ruthenium before the reduction process.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: April 23, 2024
    Assignees: Tokyo Institute of Technology, Tsubame BHB Co., Ltd.
    Inventors: Hideo Hosono, Masaaki Kitano, Toshiharu Yokoyama, Jiang Li, Shigeki Kawamura, Kazuhisa Kishida
  • Patent number: 11965226
    Abstract: The present invention relates to a lithium metal powder, a preparing method thereof, and an electrode including the same, wherein the method for preparing the lithium metal powder includes: providing a lithium metal material and a ultrasonication solution; mixing the lithium metal material and the ultrasonication solution to form a mixed solution; and ultrasonically vibrating the mixed solution to form a lithium metal powder, wherein the lithium metal powder is covered by a protective layer, and the aforementioned protective layer includes a protective layer material, wherein the protective layer material includes a sulfide, fluoride, or nitride, or a combination thereof.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: April 23, 2024
    Inventors: Jeng-Kuei Chang, Si-Hao Chen
  • Patent number: 11957996
    Abstract: Disclosed is a microwave chemical method for totally extracting fluorine and rare earth from bastnaesite concentrate, including: alkaline conversion defluorination of bastnaesite through microwave irradiation, microwave-assisted leaching of fluorine, solid-liquid separation of leaching solution and microwave-assisted leaching of rare earth. The rare earth hydrochloric acid solution for leaching contains no fluorine ion, so that the fluorine interference of subsequent processes such as impurity removal can be completely avoided; the fluorine and the rare earth are leached with microwaves, which does not need the stirring, so that the automatic control is easy to implement; the fluorine and rare earth leaching speed is high, the leaching time is short and the complete leaching of fluorine and little residual alkali in the slag can be realized by two-time leaching; and no fluorine-containing waste water is discharged, and the total extraction of the rare earth can be realized by one-time leaching.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: April 16, 2024
    Assignee: Sichuan Normal University
    Inventors: Shilin Zhao, Hongcheng Zhang, Jun Ma, Yang Liao, Liyang Han, Meng Jiang, Hao Huang, Chaoqun Li, Xiaoting Li, Hongyan Shang
  • Patent number: 11958744
    Abstract: An apparatus for producing ammonia or hydrogen may include a) a gas stream feed conduit having a connecting conduit to a steam reformer with a waste heat section; b) a heat exchanger downstream of the gas stream feed conduit; c) a gas stream preheater downstream of the heat exchanger; d) a recirculation conduit which is located downstream of the gas stream preheater and leads to the gas stream feed conduit or, upstream of the heat exchanger, to the connecting conduit; and e) the steam reformer with the waste heat section, where the waste heat section may be in thermal contact with the gas stream preheater and the flow of the gas stream which has been heated in the gas stream preheater through the recirculation conduit can be regulated. A process for producing ammonia or hydrogen may employ such an apparatus.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: April 16, 2024
    Assignees: thyssenkrupp Uhde GmbH, thyssenkrupp AG
    Inventors: Sebastian Sigge, Klaus Nölker, Steffen Jahn
  • Patent number: 11952642
    Abstract: The present invention belongs to the field of recovery of secondary resources of noble metals, and discloses a method for leaching platinum group metals from spent catalyst by UV-vis, which uses ferric oxalate complex/hydrogen peroxide-chloride salt solution as a solvent for extracting platinum group metals under the condition of UV-vis, converts the platinum group metals from metallic state to platinum group metal complex, and obtains platinum group metal lixivium to realize the leaching of the platinum group metals. The platinum leaching rate of the method of the present invention can reach more than 97%. The present invention has mild reaction conditions, realizes the green recovery of platinum group metals from spent catalyst, avoids the use of strong acids and bases and toxic substances and avoids the production of toxic gases in the leaching process, so as to reduce the environmental hazards of the spent catalyst.
    Type: Grant
    Filed: November 17, 2023
    Date of Patent: April 9, 2024
    Inventors: Zhenping Qu, Xinna Zhao, Hui Wang
  • Patent number: 11952289
    Abstract: Disclosed in the present invention is a method for preparing nickel sulfate from a nickel-iron-copper alloy. The method comprises: in a high-pressure oxygen environment, mixing a nickel-iron-copper alloy crushed material, aqueous ammonia, ammonium sulphate, and a corrosion assisting agent, leaching, then performing solid-liquid separation on the leached slurry, adding a precipitant into a filtrate, and performing ammonia distillation to obtain a nickel-containing leachate; then adding an extractant into the nickel-containing leachate to extract nickel so as to obtain a nickel-containing extraction organic phase; and then adding sulfuric acid into the nickel-containing extraction organic phase to perform back extraction of nickel so as to obtain a nickel sulfate solution.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: April 9, 2024
    Assignees: Guangdong Brunp Recycling Technology Co., Ltd., Hunan Brunp Recycling Technology Co., Ltd., Hunan Brunp Ev Recycling Co., Ltd.
    Inventors: Haijun Yu, Yinghao Xie, Aixia Li, Xuemei Zhang, Changdong Li
  • Patent number: 11939229
    Abstract: The present invention provides a method for treating a copper-containing waste etching solution, which includes: preparing basic copper chloride nanometer seed crystals and synthesizing basic copper chloride mono-crystals; making an acidic waste etching solution subjected to agglomeration reaction with an ammonium-containing solution and slurry containing the basic copper chloride mono-crystals to obtain basic copper chloride crystal particles and copper-removed waste solution; making an alkaline waste etching solution react with sulfuric acid to obtain a copper sulfate mixed solution; and then evaporating, concentrating, cooling and crystallizing the copper sulfate mixed solution obtained by the reaction of the alkaline waste etching solution and the sulfuric acid in sequence to obtain copper sulfate pentahydrate solids.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: March 26, 2024
    Assignee: Central South University
    Inventors: Zhang Lin, Xu Yan, Xueming Liu, Fandongkun Meng, Yanjie Liang
  • Patent number: 11932561
    Abstract: The invention relates to a method and an assembly for recovering magnesium ammonium phosphate from slurry supplied to a reaction container (10) in which an aerobic milieu that is alkaline as a result of CO2-stripping is present and in which the slurry is guided in a circuit with the aid of ventilation. Cationic magnesium, such as magnesium chloride, is added to the slurry, and magnesium ammonium phosphate crystals which are crystallized out of the slurry are removed via a removal device (30) provided in the base region of the reaction container. The slurry is supplied from the first reaction container (10) to a second reaction container (12) via a first line (14), wherein an anaerobic milieu is set in the second reaction container in order to redissolve the phosphate, and MAP crystals crystallized in the second reaction container are supplied to the first reaction container.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: March 19, 2024
    Assignee: CNP CYCLES GMBH
    Inventor: Bernhard Ortwein
  • Patent number: 11932551
    Abstract: Salt production can include preparing hydrohalite particles by crystallization from saturated brine, adding the hydrohalite particles to a salt brine, thereby forming a hydrohalite-salt brine mixture, agitating the hydrohalite-salt brine mixture until the hydrohalite particles have decomposed into NaCl crystals, and filtering out the NaCl crystals from the salt brine. In some instances, an initial temperature of the salt brine prior to adding the hydrohalite particles is at least 0° C. In some instances, a ratio of salt brine to hydrohalite particles, by weight, is from 0.4 to 29.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: March 19, 2024
    Inventor: Tim Eisele
  • Patent number: 11932536
    Abstract: A process for on-site hydrogen reforming is disclosed. The process includes providing a combined reformer heat exchanger component in which heated air, steam, and hydrocarbon fuel react to form process gas containing hydrogen, and the process gas is cooled via the heat exchanger. The combined components enable reductions in size, materials, costs, and heat loss. Additionally, as the heat exchanger side of the component operates at a cooler temperature, an uninsulated flange for access to the catalyst chamber can be used. A combined combustion heat exchanger component is also provided with similar advantages. Process gas is processed, and hydrogen gas is produced via a purification process.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: March 19, 2024
    Inventor: Robert John Sanger
  • Patent number: 11926532
    Abstract: Provided are processes for producing metal oxides, including pigmentary TiO2. In embodiments, a process for producing a metal oxide comprises combining a metal halide and an oxidant in a liquid phase medium under conditions to oxidize the metal halide in the liquid phase medium to produce a metal oxide therefrom.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: March 12, 2024
    Assignee: University of Kansas
    Inventors: Mark Brandon Shiflett, David Richard Corbin, Andrew M. Danby, Bala Subramaniam
  • Patent number: 11912580
    Abstract: The invention discloses nano magnesium hydride and an in-situ preparation method thereof, including disposing and stirring magnesium chloride and lithium hydride in an organic solvent under a protection of an inert atmosphere, so as to obtain an organic suspension of a mixture; performing an ultrasonic treatment to the organic suspension, so as to promote a chemical reaction of the mixture. After the reaction is completed, the suspension is filtered; the solid reaction product is washed, centrifuged and dried to remove residual organic matter, so as to obtain nano-magnesium hydride.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: February 27, 2024
    Inventors: Yongfeng Liu, Xin Zhang, Hongge Pan, Mingxia Gao
  • Patent number: 11916191
    Abstract: A method for producing a sulfide solid electrolyte having an argyrodite-type crystal structure may involve: mixing a raw material containing elemental phosphorus at an integrated power of 0.5 kWh/kg or more, and heat-treating a precursor obtained in the mixing at 350 to 500° C.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: February 27, 2024
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Takayoshi Kambara, Minoru Senga, Katsuhito Kondo, Naoya Masuda, Hironari Kimpara, Futoshi Utsuno, Hiroyuki Tamura
  • Patent number: 11912579
    Abstract: The present disclosure provides an aerogel composition which is intrinsically hydrophobic without surface modification by a hydrophobizing agent, is durable and easy to handle, which has favorable performance in aqueous environments, and which also has favorable combustion and self-heating properties. Also provided is a method of preparing an aerogel composition which is intrinsically hydrophobic without surface modification by a hydrophobizing agent, is durable and easy to handle, which has favorable performance in aqueous environments, and which has favorable combustion and self-heating properties.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: February 27, 2024
    Assignee: Aspen Aerogels, Inc.
    Inventors: Owen Richard Evans, David J Mihalcik, Kathryn Elizabeth DeKrafft, Wenting Dong
  • Patent number: 11912578
    Abstract: A production method of boron carbide nano-sized particles and/or submicron particles includes the following sequential steps: obtention of a fluid mixture including elemental boron, glycerin and one or more carboxylic acid, wherein a molar ratio of glycerin to the one or more carboxylic acids is within a range between 10:1 and 10:7.5. Heating of the fluid mixture to obtain a first mid-product in a form of a gel including borate ester bonds. Solidification of the first mid-product by heating a reaction product to obtain a second mid-product in solid form. Sintering the second mid-product to obtain boron carbide in a form of particles.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: February 27, 2024
    Inventors: Cengiz Kaya, Figen Kaya
  • Patent number: 11905176
    Abstract: The present disclosure is directed to a method of manufacture of low silica zeolite having MFI framework, such as ZSM-5. A sol-gel formulation includes a water-soluble fraction of ODSO as an additional component. The resulting products include low silica zeolite having MFI framework, whereas in the absence of the ODSO, the resulting products are zeolite impurities including analcime.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: February 20, 2024
    Inventors: Robert P. Hodgkins, Omer Refa Koseoglu
  • Patent number: 11905181
    Abstract: The disclosure discloses a method for preparing calcium oxide using multistage suspension preheater kiln. The steps of the method are: (1) the limestone powder is fed to the multistage suspension preheater kiln for preheating to 800° C. to 900° C.; (2) A preheated material is fed to a decomposition furnace, and calcined at 900° C. to 1100° C. for 25 s to 35 s; (3) A calcined material is fed to a rotary kiln, and calcined at 1100° C. to 1300° C. for 25 to 35 minutes, and finally cooled to obtain calcium oxide.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: February 20, 2024
    Inventors: Yan Zhuang, Licheng Zhuang, Qiancheng Zhuang
  • Patent number: 11905174
    Abstract: Provided is methodology for the preparation of highly-desired iodosilanes such as H2SiI2 and HSi3, via a reaction of alkylaminosilanes with certain substituted acid iodides. In one embodiment, bis(diethylamino)silane is reacted with benzoyl iodide to provide diiodosilane.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: February 20, 2024
    Assignee: ENTEGRIS, INC.
    Inventors: Scott A. Laneman, Jonathan W. Dube, James M. Stubbs
  • Patent number: 11897783
    Abstract: The present invention relates to a porous aluminum hydrate, to a process for preparing same and to the use of same as intermediate in the preparation of an alumina or of a mixed oxide based on aluminum, on cerium and on zirconium. The invention also relates to the alumina obtained from the aluminum hydrate.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: February 13, 2024
    Inventors: Julien Hernandez, Olivier Larcher
  • Patent number: 11884540
    Abstract: The reaction of sodium hypochlorite with sodium bromide is slow, and commonly only part of the bromide is converted to hypobromite. Methods to accelerate the reaction by adding a regulated amount of acid to a solution comprising bleach and bromide are provided, whereby the yield of hypobromite can be increased. The amount of acid added can be predetermined based on the content of a base in the bleach, and acid can be added to neutralize the base. The amount of acid added can be based on a measured parameter of the reaction that is indicative of reaction kinetics. For example, the amount of acid can be actively controlled by measuring pH, absorbance of visible or near Ultraviolet light, or temperature of the reacting solution and adjusting acid.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: January 30, 2024
    Assignee: CHEMTREAT, INC.
    Inventors: Oleh Weres, Chris Baron