Patents Assigned to Central South University
  • Publication number: 20200102265
    Abstract: Provided are a process and a device for preparing environmentally-friendly insulating gas perfluoroalkylnitrile. The device comprises a first tank reactor, a second tank reactor, and a fixed bed reactor. A condensing and collecting device is provided at the top of the first tank reactor, a collecting and guiding channel at the bottom of the condensing and collecting device is connected to an inlet of a storage tank, and an outlet of the storage tank is connected to an inlet of the second tank reactor. The second tank reactor is connected to a perfluoroolefin tank. An outlet of the second tank reactor is connected to a storage gasification tank. The storage gasification tank is connected to a carrier gas tank, and an outlet of the storage gasification tank is connected to an inlet of the fixed bed reactor. The present invention starts from cyanuric chloride and perfluoropropylene, and uses two tank reactors and a fixed bed reactor to realize production with high atom economy.
    Type: Application
    Filed: January 12, 2018
    Publication date: April 2, 2020
    Applicants: STATE GRID CORPORATION OF CHINA, STATE GRID SHAANXI ELECTRIC POWER RESEARCH INSTITUTE, CENTRAL SOUTH UNIVERSITY, STATE GRID (XI'AN) ENVIRONMENTAL PROTECTION TECHNIQUE CENTER CO. LTD
    Inventors: Qiang SUN, Jian WU, Yin CHEN, De DING, Genzhou ZHANG, Xiaochun BAI, Anxiang GUO, Yantao ZHANG, Pinghai LV, Xiaobing YU
  • Publication number: 20200048776
    Abstract: A boron doped diamond electrode and its preparation method and application, the electrode is deposited with a boron or nitrogen doped diamond layer or a boron or nitrogen doped diamond layer composite layer on the surface of the electrode substrate, or after a transition layer is disposed on the surface of the substrate, a boron or nitrogen doped diamond layer or a composite layer of boron or nitrogen doped diamond layer is disposed on the surface of transition layer. The preparation method is depositing or plating a boron or nitrogen doped diamond layer on the surface of the electrode substrate, or providing a transition layer on the surface of the electrode substrate, and then depositing or plating a boron or nitrogen doped diamond layer or a composite layer of boron or nitrogen doped diamond layer on the surface of the transition layer.
    Type: Application
    Filed: February 22, 2017
    Publication date: February 13, 2020
    Applicant: CENTRAL SOUTH UNIVERSITY
    Inventors: Qiuping WEI, Kezhao ZHOU, Li MA, Long ZHANG, Zhiming YU
  • Patent number: 10556603
    Abstract: A collision energy absorption apparatus for a rail vehicle, including a connection member, a base, and an energy-absorption splitting tube provided on the outer side in the radial direction of the connection member. The inner wall and outer wall of the energy-absorption splitting tube includes one or more pairs of slits having radial positions corresponding to each other. Each pair of slits includes an inner slit and an outer slit. Each slit is a non-closed linear slit. The slit has a width of 0.05-0.8 mm. The sum of the depths of each pair of slits is less than the wall thickness of the energy-absorption splitting tube.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: February 11, 2020
    Assignee: CENTRAL SOUTH UNIVERSITY
    Inventor: Guangjun Gao
  • Publication number: 20200000769
    Abstract: The present invention relates to the use of N-(2-aminoethyl)-N-(4-benzyloxy)-3-methoxybenzyl)thiophene-2-formamide hydrochloride for treating liver cancer. The N-(2-aminoethyl)-N-(4-benzyloxy)-3-methoxybenzyl)thiophene-2-formamide hydrochloride of the present invention can effectively inhibit the growth of liver cancer cells and has a therapeutic effect on liver cancer.
    Type: Application
    Filed: March 8, 2017
    Publication date: January 2, 2020
    Applicant: The Second Xiangya Hospital, Central South University
    Inventor: Xundi Xu
  • Publication number: 20190365801
    Abstract: The present invention discloses an iron oxide/nanokaolin composite hemostatic agent and a preparation method thereof. The composite hemostatic agent is composed of nanokaolin and iron oxide, where the nanokaolin is used as a carrier, and the iron oxide is loaded on a surface of a nanokaolin flake. The composite hemostatic agent is obtained by a precipitation method. The composite hemostatic agent has the advantages of good hemostatic effect, rapid wound healing, no obvious cytotoxicity, no hemolysis, high biocompatibility, and the like.
    Type: Application
    Filed: April 26, 2018
    Publication date: December 5, 2019
    Applicant: Central South University
    Inventors: Huaming YANG, Yi ZHANG, Mei LONG
  • Patent number: 10486233
    Abstract: The invention relates to a method for eliminating hollow defects in atomized superalloy powder, and pertains to the field of powder metallurgy materials. A ball-milling processing is conducted on the atomized alloy powder to eliminate the hollow defect, obtain solid powder and increase powder utilization efficiency. By controlling mill ball diameters, mass ratio of mill balls with different diameters, mass ratio of ball to powder and ball milling time, a multi-directional impact on the powder is achieved, thereby control powder shape and obtain solid spherical powder. The invention eliminates powder hollow defect by using ball milling process and equipment. This invention with high powder utilization efficiency, short ball milling time and simple operating process, can be used for large-scale preparation and application.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: November 26, 2019
    Assignee: CENTRAL SOUTH UNIVERSITY
    Inventors: Zuming Liu, Pengfei Su, Boyun Huang, Qinglong Duan, Mengmei Ma, Yang Guo, Shiqi Chen
  • Publication number: 20190352740
    Abstract: The present invention relates to the field of ore smelting technology, and particularly provides a method and system for comprehensive recovery and utilization of copper-nickel sulfide ore. Under normal pressure, the method can be used to directly leach copper-nickel sulfide ore concentrate or low-grade nickel matte obtained by matte smelting of copper-nickel sulfide ore. In the leaching process, the leaching rate of nickel, cobalt and iron is up to 99% or more, and copper is hardly leached, whereby the deep separation of copper from elements such as nickel and cobalt is directly realized, and the huge system for copper-nickel separation in the conventional process is omitted. Moreover, noble metals are not leached, and almost all of them remain in the leaching slag with copper, so the destiny is simple.
    Type: Application
    Filed: August 1, 2019
    Publication date: November 21, 2019
    Applicant: CENTRAL SOUTH UNIVERSITY
    Inventors: Zhongwei ZHAO, Yongli LI, Xuheng LIU, Wanhai XIAO, Xingyu CHEN, Jiangtao LI
  • Patent number: 10464812
    Abstract: Provided is a method for catalytically reducing selenium. Hydrogen peroxide is used as a catalyst, and a reducer is added to a hexavalent-selenium-containing solution for reaction so as to reduce the selenium to elemental selenium, wherein the standard oxidation-reduction potential of the reducer is lower than the standard oxidation-reduction potential of the conversion of the hexavalent selenium to elemental selenium. The present method can further reduce a hexavalent-selenium element-containing selenic acid or selenate solution to an elemental selenium product in one step.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: November 5, 2019
    Assignee: Central South University
    Inventors: Xueyi Guo, Runze Xu, Dong Li, Qinghua Tian
  • Publication number: 20190331698
    Abstract: The present invention relates to a molecular marker, a kit and an application for early diagnosis and prediction of sepsis acute kidney injury (AKI). TCONS_00024536 is highly expressed in the blood of sepsis AKI patients. By detecting the expression level of TCONS_00024536 in the blood of patients, whether the patients suffer from sepsis AKI or the probability of suffering from sepsis AKI can be judged. The present invention is of great significance for specific and sensitive early diagnosis and prediction of sepsis AKI.
    Type: Application
    Filed: May 7, 2019
    Publication date: October 31, 2019
    Applicant: THE SECOND XIANGYA HOSPITAL OF CENTRAL SOUTH UNIVERSITY
    Inventors: Dongshan ZHANG, Siyuan QU, Huiling LI, Pan ZHANG
  • Patent number: 10460849
    Abstract: A lightweight, high-conductivity, heat-resistant, and iron-containing aluminum wire, and a preparation process thereof. The aluminum wire is mainly composed of aluminum, boron, zirconium, iron, lanthanum, and inevitable impurity elements, and the preparation process for the wire is as follows: melting industrial pure aluminum; then adding intermediate alloys of boron, zirconium, iron, and lanthanum to the melt; performing stirring, refining, furnace front component rapid analysis, component adjustment, standing, deslagging, and rapid cooling casting to obtain an aluminum alloy blank; and performing annealing, extrusion, and drawing on the cast blank to obtain an aluminum alloy monofilament. The wire obtained has density less than or equal to 2.714 g/cm3, electrical conductivity greater than or equal to 62% IACS, a short-term heat-resistance temperature as high as 230° C., a long-term heat-resistance temperature as high as 210° C., and tensile strength greater than or equal to 170 MPa.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: October 29, 2019
    Assignee: CENTRAL SOUTH UNIVERSITY
    Inventors: Hongying Li, Jie Bin, Zhaohe Gao
  • Patent number: 10435045
    Abstract: An anti-derailment apparatus for a bogie of a rail vehicle of the disclosure comprises at least one mounting seat and an anti-derailment slide plate. The transverse orientation of the anti-derailment slide plate on the mounting seat and the extending length of the anti-derailment slide plate in the vertical direction meet the following requirements simultaneously: 1) making the anti-derailment slide plate located at the inside of the ground rail when the rail vehicle runs normally; 2) when at least one wheelset of the rail vehicle climbs rail, the anti-derailment slide plate acts on the ground rail to form lateral limitation points so as to limit the freedom of the rail vehicle and make it still constrained by the ground rail.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: October 8, 2019
    Assignee: CENTRAL SOUTH UNIVERSITY
    Inventor: Guangjun Gao
  • Patent number: 10364194
    Abstract: A method for preparing a ceramic-modified carbon-carbon composite material. The method includes preparing and thermally treating a carbon fiber preform, and depositing pyrolytic carbon on the carbon fiber preform in a chemical vapor infiltration furnace, to yield a porous carbon-carbon composite material; placing the carbon-carbon composite material deposited with the pyrolytic carbon on a zirconium-titanium powder mixture, and performing a reactive melt infiltration, to yield a carbon-carbon composite material modified by non-stoichiometric zirconium titanium carbide; and placing the carbon-carbon composite material modified by non-stoichiometric zirconium titanium carbide in a powder mixture including carbon, boron carbide, silicon carbide, silicon, and an infiltration enhancer, and performing an embedding method, to form a ceramic-modified carbon-carbon composite material.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: July 30, 2019
    Assignee: CENTRAL SOUTH UNIVERSITY
    Inventors: Yi Zeng, Xiang Xiong, Dini Wang, Wei Sun, Zhaoke Chen, Yalei Wang
  • Publication number: 20190217310
    Abstract: The present invention relates to an azolethione flotation collector and application thereof. According to the application, an azolethione compound such as a 1,3,4-thiadiazole-2-thione compound, a 1,3,4-oxadiazole-2-thione compound, a 1,2,4-triazole-3-thione compound or a 1,2,4,5-tetrazole-3-thione compound is used as a mineral flotation collector to be applied to ores containing copper, zinc, lead, nickel, cobalt, platinum, palladium, silver or gold minerals to realize flotation recovery of valuable metal minerals. Compared with common flotation collectors in the existing technologies, the flotation collector of the present invention can effectively improve enrichment and recovery of copper, zinc, lead, nickel, cobalt, platinum, palladium, silver or gold minerals.
    Type: Application
    Filed: March 21, 2019
    Publication date: July 18, 2019
    Applicant: CENTRAL SOUTH UNIVERSITY
    Inventors: Guangyi LIU, Yaoguo HUANG, Longqun MA, Xiaoxue NIU, Jun LIU, Hong ZHONG, Zhe HU
  • Patent number: 10341451
    Abstract: The present invention discloses a cloud-oriented stream scheduling method based on Android platform, which aims to solve the problem that the calculation and storage capability of the mobile terminal device are limited and the application has a low expandability. The technical solution of the present invention is to build a core scheduling routine and an App management routine in a mobile terminal device based on Android operation system, and build a cloud management service subsystem in cloud server to construct a cloud-oriented stream scheduling system based on the Android platform to make the mobile terminal device enabled to dynamically install or uninstall the applications according to security attribute, user behavior habit, network status and transmission quality, processing capability of current mobile terminal device, and timed task of the application and achieve the consistent application view on the level of the mobile terminal device.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: July 2, 2019
    Assignee: CENTRAL SOUTH UNIVERSITY
    Inventors: Yaping Liu, Shaoyong Li, Yaoxue Zhang, Shuo Zhang, Haining Liao
  • Publication number: 20190185341
    Abstract: A preparation method of phosphotungstic acid includes mixing a mixed solution containing tungsten, phosphorus and an inorganic acid with an organic-alcohol-containing oil phase for extraction, stripping the obtained supported organic phase and distilled water according to an oil phase:aqueous phase volume ratio of 3:1 to 10:1 to obtain a stripping solution; and carrying out thermal evaporation crystallization or spray drying on the stripping solution to obtain a phosphotungstic acid crystal, wherein the organic alcohol is a C7-C20 alcohol. The inventors have found out that the addition of an inorganic acid to a solution of phosphorus or tungsten and the use of an organic alcohol as an extractant can achieve simultaneous and efficient extraction of phosphotungstic acid. It has also been found that the organic-alcohol-containing oil phase has excellent selectivity for phosphotungstic acid molecules in the mixed solution.
    Type: Application
    Filed: August 3, 2017
    Publication date: June 20, 2019
    Applicant: CENTRAL SOUTH UNIVERSITY
    Inventors: Zhongwei ZHAO, Yongli LI
  • Patent number: 10279822
    Abstract: A telescopic type collision energy absorption device includes a first tube, a second tube telescoped within the first tube, and a telescopic mechanism connected with the second tube by passing through the first tube, the first tube being mounted with a cutting mechanism for cutting an outer wall of the second tube, when the device is in a non-operating state, the telescopic mechanism pulls the second tube to retract into the first tube; in a state prior to the collision of a vehicle, the telescopic mechanism under an effect of high-pressure air pushes the second tube to eject outwards, the cutting mechanism is pressed against locating slots of the second tube under an effect of a spring force, the cutting mechanism cuts the second tube and absorbs energy when the second tube is subjected to an external force and retracts towards interior of the first tube.
    Type: Grant
    Filed: October 15, 2016
    Date of Patent: May 7, 2019
    Assignee: Central South University
    Inventor: Guangjun Gao
  • Publication number: 20190112445
    Abstract: A foamed skeleton reinforced composite, comprising a foamed skeleton and a matrix material. The foamed skeleton is selected from at least one of a metal foamed skeleton, an inorganic non-metal foamed skeleton, and an organic foamed skeleton. The matrix material is selected from a metal or a polymer.
    Type: Application
    Filed: February 22, 2017
    Publication date: April 18, 2019
    Applicant: CENTRAL SOUTH UNIVERSITY
    Inventors: Kezhao ZHOU, Qiuping WEI, Li MA, Long ZHANG, Zhiming YU
  • Publication number: 20190094162
    Abstract: A method for testing a phase transformation point of aluminium alloy, comprising cutting an aluminium alloy material to obtain at least three samples to be tested; performing heat treatment on a first sample to be tested to obtain a first resistivity-temperature curve; respectively performing quenching treatment and annealing treatment on a second sample to be tested and a third sample to be tested to obtain the second sample to be tested at a quenched state and the third sample to be tested at a fully annealed state, and respectively heating the second sample to be tested at a quenched state and the third sample to be tested at a fully annealed state to obtain a second resistivity-temperature curve and a third resistivity-temperature curve; obtaining a relative resistivity-temperature curve; and determining a phase transformation starting temperature and a phase transformation termination temperature of the sample to be tested according to the relative resistivity-temperature curve.
    Type: Application
    Filed: March 9, 2016
    Publication date: March 28, 2019
    Applicant: CENTRAL SOUTH UNIVERSITY
    Inventors: Hongying LI, Jiaojiao LIU
  • Publication number: 20190096538
    Abstract: A lightweight, high-conductivity, heat-resistant, and iron-containing aluminum wire, and a preparation process thereof. The aluminum wire is mainly composed of aluminum, boron, zirconium, iron, lanthanum, and inevitable impurity elements, and the preparation process for the wire is as follows: melting industrial pure aluminum; then adding intermediate alloys of boron, zirconium, iron, and lanthanum to the melt; performing stirring, refining, furnace front component rapid analysis, component adjustment, standing, deslagging, and rapid cooling casting to obtain an aluminum alloy blank; and performing annealing, extrusion, and drawing on the cast blank to obtain an aluminum alloy monofilament. The wire obtained has density less than or equal to 2.714 g/cm3, electrical conductivity greater than or equal to 62% IACS, a short-term heat-resistance temperature as high as 230° C., a long-term heat-resistance temperature as high as 210° C., and tensile strength greater than or equal to 170 MPa.
    Type: Application
    Filed: March 24, 2017
    Publication date: March 28, 2019
    Applicant: CENTRAL SOUTH UNIVERSITY
    Inventors: Hongying LI, Jie BIN, Zhaohe GAO
  • Publication number: 20190023585
    Abstract: A method and an apparatus for recovery and deep treatment of a polluted acid. The method comprises the following main steps: (1) selectively adsorbing rare and noble metals, such as rhenium, selenium and the like; (2) separating copper from arsenic to recover the copper; (3) carrying out efficient vulcanization to perform deep arsenic removal; (4) carrying out electrodialysis to pre-concentrate acid; (5) evaporating and concentrating the acid; (6) carrying out an air-stripping method to remove fluorine and chlorine. The polluted acid treatment apparatus mainly comprises a precision filtering tank, a special adsorbing tank, a copper-arsenic separation device, a vulcanization device, an electrodialysis device, an evaporative concentration device, and an air-stripping device.
    Type: Application
    Filed: September 9, 2016
    Publication date: January 24, 2019
    Applicant: Central South University
    Inventors: Liyuan CHAI, Qingwei WANG, Guomin JIANG, Chengyun ZHOU, Qingzhu LI, Zhihui YANG, Weirong GAO