Patents by Inventor Zhichang Liu

Zhichang Liu 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).

  • Publication number: 20240109056
    Abstract: The present disclosure provides a composite ionic liquid and a preparation method and a use thereof. A first aspect of the present disclosure provides a preparation method of a composite ionic liquid, where an ammonium salt, a first metal salt, a second metal salt, and a third metal salt are sequentially added into a reactor for performing a reaction under different conditions, and the composite ionic liquid is obtained after the reaction is finished. The composite ionic liquid prepared by the method may be used as a catalyst to catalyze an alkylation reaction of isoparaffin with C4 olefin to obtain alkylated oil, which has the advantages of high catalytic activity, long catalytic life, low consumption, and better distribution of the resulting alkylated oil, etc, and thereby significantly reducing the production costs and improving the quality of the resulted alkylated oil.
    Type: Application
    Filed: January 19, 2023
    Publication date: April 4, 2024
    Inventors: Tao ZHENG, Rui ZHANG, Zhichang LIU, Haiyan LIU, Xianghai MENG, Chunming XU
  • Patent number: 11890591
    Abstract: Disclosed herein are lithiated cyclodextrin metal organic frameworks and method of making and using the same. A metal organic framework comprising a coordinated network of repeating units extending in three dimensions, wherein the repeating unit comprises a cyclodextrin, a first coordinating metal cation, and a second coordinating metal cation.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: February 6, 2024
    Assignees: Northwestern University, King Abdulaziz City for Science and Technology (KACST)
    Inventors: James Fraser Stoddart, Hasmukh A. Patel, Zhichang Liu, Siva Krishna Mohan Nalluri
  • Patent number: 11634334
    Abstract: The present disclosure provides a method of synthesizing an aluminosilicate molecular sieve by a crystal seed-assisted method, a natural aluminosilicate clay mineral treated and activated by an alkali is used as a crystal seed for synthesis of the aluminosilicate molecular sieve, and the target molecular sieve product is synthesized by hydrothermal crystallization, wherein the synthesis process does not require addition of conventional crystal seeds of a molecular sieve or use of any organic template agent, thus the synthesized product does not require a calcination process to remove the template agent. The method of synthesizing an aluminosilicate molecular sieve by a crystal seed-assisted method can meet the requirements of both crystallinity and nucleation time, and greatly reduce costs of synthesizing the aluminosilicate molecular sieve, and reduce the environmental pollution caused by removal of the template agent by calcinating.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: April 25, 2023
    Assignee: CHINA UNIVERSITY OF PETROLEUM-BEIJING
    Inventors: Tao Zheng, Haiyan Liu, Zhichang Liu, Xianghai Meng, Rui Zhang, Chunming Xu
  • Publication number: 20220347652
    Abstract: Disclosed herein are lithiated cyclodextrin metal organic frameworks and method of making and using the same. A metal organic framework comprising a coordinated network of repeating units extending in three dimensions, wherein the repeating unit comprises a cyclodextrin, a first coordinating metal cation, and a second coordinating metal cation.
    Type: Application
    Filed: April 11, 2022
    Publication date: November 3, 2022
    Inventors: James Fraser Stoddart, Hasmukh A. Patel, Zhichang Liu, Siva Krishna Mohan Nalluri
  • Patent number: 11426702
    Abstract: A method and a system for treatment of a spent chloroaluminate ionic liquid catalyst and an alkaline wastewater, where the method includes: 1) mixing the catalyst with a concentrated brine for hydrolysis reaction until residual activity of the catalyst is completely eliminated, to obtain an acidic hydrolysate and an acid-soluble oil; 2) mixing the acidic hydrolysate with an alkaline solution containing the alkaline wastewater for neutralization reaction until this reaction system becomes weak alkaline, to obtain a neutralization solution; 3) fully mixing the neutralization solution with a flocculant, carrying out sedimentation and separation, collecting the concentrated brine at an upper layer for reuse in the hydrolysis reaction, and collecting concentrated flocs at a lower layer; 4) dehydrating the concentrated flocs to obtain concentrated brine for reuse into the hydrolysis reaction, and collecting a wet solid slag; and 5) drying the wet solid slag to obtain a dry solid slag.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: August 30, 2022
    Assignee: CHINA UNIVERSITY OF PETROLEUM-BEIJING
    Inventors: Chunmao Chen, Zhichang Liu, Zhongjin Yi, Rui Zhang, Jiahao Liang, Xianghai Meng, Haiyan Liu, Chunming Xu, Qinghong Wang
  • Patent number: 11298677
    Abstract: Disclosed herein are lithiated cyclodextrin metal organic frameworks and method of making and using the same. A metal organic framework comprising a coordinated network of repeating units extending in three dimensions, wherein the repeating unit comprises a cyclodextrin, a first coordinating metal cation, and a second coordinating metal cation.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: April 12, 2022
    Assignees: Northwestern University, King Abdulaziz City for Science and Technology
    Inventors: James Fraser Stoddart, Hasmukh A. Patel, Zhichang Liu, Siva Krishna Mohan Nalluri
  • Patent number: 11275200
    Abstract: An array substrate and a manufacturing method thereof, a display panel and a display device are disclosed. The array substrate includes a transparent base substrate and an electrode structure provided on the transparent base substrate, the electrode structure including an anti-reflective layer and a first electrode layer, the anti-reflective layer being located between the first electrode layer and the transparent base substrate.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: March 15, 2022
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shoukun Wang, Huibin Guo, Hao Han, Fangbin Fu, Yihe Jia, Yongzhi Song, Zhichang Liu, Jiantao Liu
  • Patent number: 11254678
    Abstract: Disclosed herein is a mixed-valence crystal superstructure assembled from a 2:1 host-guest inclusion complex. The complex comprises an aromatic guest encircled by two macrocycles, wherein the complex has an empirical charge greater than 0 and less than 1. Methods of preparing the compositions described herein are also disclosed.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: February 22, 2022
    Assignees: Northwestern University, King Abdulaziz City for Science and Technology (KACST)
    Inventors: Zhichang Liu, James Fraser Stoddart
  • Patent number: 11155554
    Abstract: Provided herein are rigid macrocycles comprising a first redox-active subunit and a second redox-active subunit, wherein the first redox-active unit and the second redox-active unit are different subunits. Also provided herein are methods of preparation of the rigid macrocycles and use thereof, for example, in the first of energy generation and storage.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 26, 2021
    Assignees: Northwestern University, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY (KACST)
    Inventors: James Fraser Stoddart, Siva Krishna Mohan Nalluri, Zhichang Liu
  • Publication number: 20210221811
    Abstract: Disclosed herein is a mixed-valence crystal superstructure assembled from a 2: 1 host-guest inclusion complex. The complex comprises an aromatic guest encircled by two macrocycles, wherein the complex has an empirical charge greater than 0 and less than 1. Methods of preparing the compositions described herein are also disclosed.
    Type: Application
    Filed: June 4, 2019
    Publication date: July 22, 2021
    Inventors: Zhichang Liu, James Fraser Stoddart
  • Publication number: 20210223440
    Abstract: An array substrate and a manufacturing method thereof, a display panel and a display device are disclosed. The array substrate includes a transparent base substrate and an electrode structure provided on the transparent base substrate, the electrode structure including an anti-reflective layer and a first electrode layer the anti-reflective layer being located between the first electrode layer and the transparent base substrate.
    Type: Application
    Filed: July 24, 2019
    Publication date: July 22, 2021
    Inventors: Shoukun WANG, Huibin GUO, Hao HAN, Fangbin FU, Yihe JIA, Yongzhi SONG, Zhichang LIU, Jiantao LIU
  • Publication number: 20210094836
    Abstract: The present disclosure provides a method of synthesizing an aluminosilicate molecular sieve by a crystal seed-assisted method, a natural aluminosilicate clay mineral treated and activated by an alkali is used as a crystal seed for synthesis of the aluminosilicate molecular sieve, and the target molecular sieve product is synthesized by hydrothermal crystallization, wherein the synthesis process does not require addition of conventional crystal seeds of a molecular sieve or use of any organic template agent, thus the synthesized product does not require a calcination process to remove the template agent. The method of synthesizing an aluminosilicate molecular sieve by a crystal seed-assisted method can meet the requirements of both crystallinity and nucleation time, and greatly reduce costs of synthesizing the aluminosilicate molecular sieve, and reduce the environmental pollution caused by removal of the template agent by calcinating.
    Type: Application
    Filed: September 29, 2020
    Publication date: April 1, 2021
    Inventors: HAIYAN LIU, TAO ZHENG, ZHICHANG LIU, XIANGHAI MENG, RUI ZHANG, CHUNMING XU
  • Publication number: 20200392029
    Abstract: A method and a system for treatment of a spent chloroaluminate ionic liquid catalyst and an alkaline wastewater, where the method includes: 1) mixing the catalyst with a concentrated brine for hydrolysis reaction until residual activity of the catalyst is completely eliminated, to obtain an acidic hydrolysate and an acid-soluble oil; 2) mixing the acidic hydrolysate with a lye containing the alkaline wastewater for neutralization reaction until this reaction system becomes weak alkaline, to obtain a neutralization solution; 3) fully mixing the neutralization solution with a flocculant, carrying out sedimentation and separation, collecting the concentrated brine at an upper layer for reuse in the hydrolysis reaction, and collecting concentrated flocs at a lower layer; 4) dehydrating the concentrated flocs to obtain concentrated brine for reuse into the hydrolysis reaction, and collecting a wet solid slag; and 5) drying the wet solid slag to obtain a dry solid slag.
    Type: Application
    Filed: August 28, 2020
    Publication date: December 17, 2020
    Inventors: CHUNMAO CHEN, ZHICHANG LIU, ZHONGJIN YI, RUI ZHANG, JIAHAO LIANG, XIANGHAI MENG, HAIYAN LIU, CHUNMING XU, QINGHONG WANG
  • Patent number: 10867718
    Abstract: Provided herein are mechanically interlocked air-stable persistent organic radicals. The radical compositions may access a multiplicity of radical, cationic redox states as well as a fully cationic redox state. A composition comprises a first ring mechanically interlocked with a second ring or a salt thereof, wherein the first ring comprises a 4,4?-bipyridinium subunit or a derivative thereof and a diazapyrenium subunit or a derivative thereof and the second ring comprises a 4,4?-bipyridinium subunit or a derivative thereof. In some embodiments, the second ring further comprises a diazapyrenium subunit or a derivative thereof. Methods of preparing the compositions are also provided.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: December 15, 2020
    Assignee: Northwestern University
    Inventors: Zhichang Liu, Junling Sun, James Fraser Stoddart
  • Patent number: 10822242
    Abstract: The present application provides a ZSM-35 molecular sieve and a preparation method thereof. The ZSM-35 molecular sieve is an aggregated ZSM-35 molecular sieve having a hierarchical macro-meso-microporous pore structure. Raw materials for the preparation method do not include an organic template agent and a crystal seed, and the preparation method includes the following steps: preparing a reactant gel where a molar ratio of SiO2, Al2O3, Na2O, K2O, oxygen-containing acid radical and H2O is (20-40):1.0:(1.5-2.0):(4.0-6.5):(1.0-4.0):(600-1200); sequentially performing an aging treatment and a crystallization treatment on the reactant gel, washing and drying a resulting synthetic product. The ZSM-35 molecular sieve provided by the present application may be obtained by synthesizing without using an organic template agent and crystal seed, and because it has a hierarchical pore structure, it is favorable for material diffusion and mass transfer.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: November 3, 2020
    Assignee: CHINA UNIVERSITY OF PETROLEUM—BEIJING
    Inventors: Haiyan Liu, Tao Zheng, Zhichang Liu, Xianghai Meng, Rui Zhang, Chunming Xu
  • Patent number: 10784289
    Abstract: The present application provides an array substrate. The array substrate in each of a plurality of subpixel areas includes a first thin film transistor having a first gate electrode connected to one of a plurality of gate lines, a first source electrode connected to one of a plurality of data lines, and a first drain electrode connected to a pixel electrode; a second thin film transistor having a second gate electrode, a second source electrode connected to the one of the plurality of data lines, and a second drain electrode connected to the pixel electrode; and a third thin film transistor having a third gate electrode connected to the one of the plurality of data lines, a third source electrode connected to the one of the plurality of gate lines, and a third drain electrode connected to the second gate electrode and one of a plurality of auxiliary signal lines.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: September 22, 2020
    Assignees: Chongqing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yulong Chen, Niannian Wang, Yong Xiong, Zhichang Liu, Xiaorui Tian, Linglong Lu, Ziwei Wang, Meng Wei, Xiang Zhang
  • Patent number: 10745418
    Abstract: Provided herein are supramolecular assemblies, the supramolecular assemblies comprising a racemic mixture of rigid macrocycles capable of interacting through [C—H . . . O] hydrogen bonds. Also provided herein are methods for preparing supramolecular assemblies, the method comprising providing a mixture of rigid macrocycles capable of interacting through [C—H . . . O] hydrogen bonds, the mixture of rigid macrocycles comprising a first rigid macrocycle enantiomer and a second rigid macrocycle enantiomer, and providing a solvent.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: August 18, 2020
    Assignee: Northwestern University
    Inventors: James Fraser Stoddart, Zhichang Liu
  • Publication number: 20200164342
    Abstract: Disclosed herein are lithiated cyclodextrin metal organic frameworks and method of making and using the same. A metal organic framework comprising a coordinated network of repeating units extending in three dimensions, wherein the repeating unit comprises a cyclodextrin, a first coordinating metal cation, and a second coordinating metal cation.
    Type: Application
    Filed: July 23, 2018
    Publication date: May 28, 2020
    Inventors: James Fraser Stoddart, Hasmukh A. Patel, Zhichang Liu, Siva Krishna Mohan Nalluri
  • Publication number: 20200038848
    Abstract: The present application provides a ZSM-35 molecular sieve and a preparation method thereof. The ZSM-35 molecular sieve is an aggregated ZSM-35 molecular sieve having a hierarchical macro-meso-microporous pore structure. Raw materials for the preparation method do not include an organic template agent and a crystal seed, and the preparation method includes the following steps: preparing a reactant gel where a molar ratio of SiO2, Al2O3, Na2O, K2O, oxygen-containing acid radical and H2O is (20-40):1.0:(1.5-2.0):(4.0-6.5):(1.0-4.0):(600-1200); sequentially performing an aging treatment and a crystallization treatment on the reactant gel, washing and drying a resulting synthetic product. The ZSM-35 molecular sieve provided by the present application may be obtained by synthesizing without using an organic template agent and crystal seed, and because it has a hierarchical pore structure, it is favorable for material diffusion and mass transfer.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Inventors: HAIYAN LIU, TAO ZHENG, ZHICHANG LIU, XIANGHAI MENG, RUI ZHANG, CHUNMING XU
  • Publication number: 20190363104
    Abstract: The present application provides an array substrate. The array substrate in each of a plurality of subpixel areas includes a first thin film transistor having a first gate electrode connected to one of a plurality of gate lines, a first source electrode connected to one of a plurality of data lines, and a first drain electrode connected to a pixel electrode; a second thin film transistor having a second gate electrode, a second source electrode connected to the one of the plurality of data lines, and a second drain electrode connected to the pixel electrode; and a third thin film transistor having a third gate electrode connected to the one of the plurality of data lines, a third source electrode connected to the one of the plurality of gate lines, and a third drain electrode connected to the second gate electrode and one of a plurality of auxiliary signal lines.
    Type: Application
    Filed: May 22, 2018
    Publication date: November 28, 2019
    Applicants: Chongqing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yulong Chen, Niannian Wang, Yong Xiong, Zhichang Liu, Xiaorui Tian, Linglong Lu, Ziwei Wang, Meng Wei, Xiang Zhang