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1.发明申请公开(公告)号：US20200381133A1
公开(公告)日：2020-12-03
申请号：US16854817
申请日：2020-04-21
Inventor： Jichuan HUO , Yonglin HUO , Xingquan ZHANG , Xiang JI , Qihui LIAN
Abstract: Disclosed herein is a method for preparing a matrix for vitrifying radioactive waste, including: grinding natural magmatic rocks; and melting the ground product at 1450-1500° C. for 3-4.5 h followed by moulding and annealing to produce the matrix. The matrix includes 45%-65% by weight of SiO2, 9%-18% by weight of Al2O3, 4%-12% by weight of CaO, 3%-10% by weight of MgO, 6%-16% by weight of Fe2O3+FeO, 2%-9% by weight of Na2O+K2O and 1%-5% by weight of TiO2. The matrix is doped with simulated radioactive waste, ground, melted, moulded and annealed to obtain a glass wasteform with good chemical and thermal stability.
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2.发明公开公开(公告)号：US20240299903A1
公开(公告)日：2024-09-12
申请号：US18214069
申请日：2023-06-26
Applicant: SOUTHWEST UNIVERSITY OF SCIENCE AND TECHNOLOGY , Changchun lantian high-tech seling materials Co.,LTD
Inventor： Hongjuan SUN , Tongjiang PENG , Yue QING , Liming LUO , Yan XU
CPC classification number: B01J20/12 , B01D53/02 , B01J20/28004 , B01J20/3021 , B01J20/3028 , B01J20/3042 , B01J20/3078 , B01J20/3483 , B01D2252/10 , B01D2257/7027 , B01J2220/4806
Abstract: Provided are a method for preparing an adsorbent from industrial vermiculite, an adsorbent and application thereof. The method comprises steps: flaking and de-polluting the raw industrial vermiculite ore to obtain industrial vermiculite fine flakes; grinding the industrial vermiculite fine flakes to obtain industrial vermiculite powder; mixing the industrial vermiculite powder with a binder and granulating it to obtain an industrial vermiculite granular; and post-treating the industrial vermiculite granular to obtain the adsorbent. The adsorbent is prepared by the method. Applications may include purification of benzene gases such as toluene, sewage treatment, horticulture, soil improvement and applications in agricultural carriers. The adsorbent of the disclosure has the advantages of high cation exchange capacity, large internal specific surface area, strong adsorption of toluene and lightweight porous, etc. Moreover, the preparation method of the disclosure is simple, green, low production cost and easy to be produced on a large scale.
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公开(公告)号：US11566112B2
公开(公告)日：2023-01-31
申请号：US16853785
申请日：2020-04-21
Applicant: Southwest University of Science and Technology , Sichuan Guanmusiyang New Material Technology Co., Ltd.
Inventor： Guanjun Chang , Li Yang , Yewei Xu , Baoxuan Chang , Shien Yang , Rui Yuan
Abstract: A high-performance triple-crosslinked polymer and a preparation method thereof are provided. The polymer is obtained by curing and cross-linking a monomer having two epoxy groups, a cross-linking monomer and a functional monomer. The polymer contains a cross-linking network formed by covalent bonds and two types of multi-level hydrogen bonds with different strengths. The interaction strength between the covalent bonds and the two types of hydrogen bonds decreases in a gradient. The dilemma of the strength-ductility tradeoff in a high-performance polymer is overcome by forming a triple-crosslinked network with covalent bonds and multi-level hydrogen bonds with different strengths in the polymer. The dynamic and hierarchical hydrogen bonds are broken and recombined timely and continuously to concurrently maintain the complete structure of the polymer network and enable the polymer network to quickly respond to the transmission and dissipation of the external environment.
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公开(公告)号：US11549222B2
公开(公告)日：2023-01-10
申请号：US17004013
申请日：2020-08-27
Inventor： Baolong Zhu , Xin Li
Abstract: A vertical ground heat exchanger for reducing the temperature in the carbonaceous shale rock mass and preventing roadbed frost heave includes a heating mechanism, a heat releasing component respectively connected to both ends of the heating mechanism and a refrigeration heat exchange mechanism. The refrigeration heat exchange mechanism is connected to the lower end of the heating mechanism through a heat transfer pipeline and communicates with the heat releasing component. The heat releasing component includes a double-layer heat exchange tube component, a gas-liquid separator and a branch tube, wherein the double-layer heat exchange tube component is respectively connected to the both ends of the heating mechanism, the gas-liquid separator is connected to the double-layer heat exchange tube component, and the branch tube is connected between the gas-liquid separator and the refrigeration heat exchange mechanism. The double-layer heat exchange tube component includes an upper bellows and a lower bellows.
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公开(公告)号：US11384444B2
公开(公告)日：2022-07-12
申请号：US17433613
申请日：2020-12-11
Abstract: A method for electrochemical extraction of uranium from seawater using an oxygen vacancy (OV)-containing metal oxide includes the following steps: adding glycerin to a solution of indium nitrate in isopropanol, transferring a resulting mixture to a reactor, and conducting reaction to obtain a spherical indium hydroxide solid; dissolving the solid in deionized water, transferring a resulting solution to the reactor, and conducting reaction to obtain a flaky indium hydroxide solid; calcining the solid to obtain calcined OV-containing In2O3-x; adding the In2O3-x to ethanol, and adding a membrane solution; coating a resulting solution uniformly on carbon paper, and naturally drying the carbon paper; clamping dried carbon paper with a gold electrode for being used as a working electrode for a three-electrode system; and adding simulated seawater to an electrolytic cell, placing the three-electrode system in the simulated seawater, and stirring the simulated seawater for electrolysis to extract uranium from the seawater.
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Patent Agency Ranking
公开(公告)号：US20220032262A1
公开(公告)日：2022-02-03
申请号：US17190407
申请日：2021-03-03
Abstract: A preparation method of a bacterial cellulose-defective molybdenum disulfide (BC-MoS2-x) heterojunction material for treating radioactive wastewater is provided, including: preparing bacterial cellulose by the in situ growth technology of Acetobacter xylinum, and freeze-drying to obtain dried bacterial cellulose; carbonizing the dried bacterial cellulose to obtain carbonized bacterial cellulose; dispersing the carbonized bacterial cellulose into deionized water under an ultrasonic treatment; then adding thiourea and Na2MoO4.2H2O, dissolving under an ultrasonic treatment to obtain a reaction mixture, subjecting the reaction mixture to a hydrothermal reaction to obtain a BC-MoS2 heterojunction; and calcining the BC-MoS2 heterojunction in a tube furnace with an Ar/H2 atmosphere to obtain the BC-MoS2-x heterojunction.
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7.发明申请公开(公告)号：US20200217793A1
公开(公告)日：2020-07-09
申请号：US16791457
申请日：2020-02-14
Inventor： GUANJUN CHANG , Li Yang , Zhongyuan Lu , Junxiao Yang
Abstract: A method for detecting or comparing mechanical strength of macro-molecular polymer materials. The detecting method has the steps of measuring the mechanical strength and the maximum value of the fluorescence absorption spectrum of each of the plurality of samples to form a curve relationship or function relationship between the maximum value of the fluorescence absorption spectrum and the mechanical strength; measuring the maximum value of the fluorescence absorption spectrum of the target material, and using the curve relationship or the function relationship to obtain the mechanical strength of the target material. The plurality of samples and the target material are both prepared from a macro-molecular polymer, and the macro-molecular polymer may be composed of disulfonate-difluorobenzophenone, hydroxyindole and difluorobenzophenone as monomers, and the sulfonate groups of the disulfonate-difluorobenzophenone have metal cations. An object of the method is to identify mechanical properties of polymer materials by fluorescence nondestructive detection.
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公开(公告)号：US10564099B2
公开(公告)日：2020-02-18
申请号：US15883973
申请日：2018-01-30
Inventor： Guanjun Chang , Li Yang , Zhongyuan Lu , Junxiao Yang
Abstract: A method for detecting or comparing mechanical strength of macro-molecular polymer materials. The detecting method has the steps of measuring the mechanical strength and the maximum value of the fluorescence absorption spectrum of each of the plurality of samples to form a curve relationship or function relationship between the maximum value of the fluorescence absorption spectrum and the mechanical strength; measuring the maximum value of the fluorescence absorption spectrum of the target material, and using the curve relationship or the function relationship to obtain the mechanical strength of the target material. The plurality of samples and the target material are both prepared from a macro-molecular polymer, and the macro-molecular polymer may be composed of disulfonate-difluorobenzophenone, hydroxyindole and difluorobenzophenone as monomers, and the sulfonate groups of the disulfonate-difluorobenzophenone have metal cations. An object of the method is to identify mechanical properties of polymer materials by fluorescence nondestructive detection.
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公开(公告)号：US10119005B1
公开(公告)日：2018-11-06
申请号：US15883795
申请日：2018-01-30
Inventor： Guanjun Chang , Li Yang , Zhongyuan Lu , Junxiao Yang
Abstract: A method for recovering, regenerating and repairing polymer. The method includes immersing a polymer in an acid solution so that hydrogen ions of the acid solution replace metal cations of the polymer to obtain an acid-treated polymer, and to realize the recovery of the polymers. Subsequently, the acid-treated polymer is immersed in an alkaline solution to obtain a base-treated polymer to realize the regeneration of the polymers. The polymer is composed of disulfonate-difluorobenzophenone, hydroxyindole and difluorobenzophenone as monomers, and sulfonate groups of the disulfonate-difluorobenzophenone have metal cations. The method replaces the metal cations with hydrogen ions to realize the recovery of the polymers and reduce environmental pollutions. The regeneration of polymers is realized by replacing the hydrogen ions with the metal cation, and resource recycling. Through the process of local repair, the service life of the product of polymers can be prolonged.
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公开(公告)号：US20240400470A1
公开(公告)日：2024-12-05
申请号：US18507880
申请日：2023-11-13
Applicant: JIUZHAIGOU NATIONAL NATURE RESERVE ADMINSTRATION , CHENGDU INSTITUTE OF BIOLOGY, CHINESE ACADEMY OF SCIENCES , SOUTHWEST UNIVERSITY OF SCIENCE AND TECHNOLOGY , ABA TIBETAN AND QIANG AUTONOMOUS PREFECTURE ECOLOGICAL PROTECTION AND DEVELOPMENT RESEARCH INSTITUTE
Inventor： Demeng ZHAO , Geng Sun , Qunlong Chen , Jie Du , Yanbao Lei , Peng Ren , Ke Chen , Yunlai Tang , Hao Tang , Min Xiao , Ying Dai
Abstract: The present disclosure discloses a moss-covered green manure and an application method in assisting ecological remediation. The moss-covered green manure includes the following parts by weight of raw materials: 30-38 parts of plant fibers, 30-35 parts of moss, 5-8 parts of paclobutrazol, 5-7 parts of a growth regulator, 50-62 parts of humus soil and/or an oil cake, and 35-47 parts of electrolytic water. According to the moss-covered green manure and the application method in assisting ecological remediation provided by the present disclosure, bare soil is covered by arranging cooperative moss-covered green manure in a non-planting area of a remediation plant to ensure the beauty of the appearance. Meanwhile, the soil can also be improved by further utilizing the advantages of preserving moisture and fertility, improving the nitrogen fixing capacity of the soil and not competing with plants for fertilizer of the moss-covered green manure.
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