Patents by Inventor Gaohong HE
Gaohong HE 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).
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Publication number: 20240124336Abstract: The present invention provides a high-efficient magnesium ion removal system for salt lake brine based on in situ alkali production using bipolar membrane electrochemical process, it is constructed with cathode, cathode cell, anode, anode cell, and anion exchange membranes, bipolar membranes, acid cells, alkali cells, mesh materials for precipitate aggregation, acid-washing cells.Type: ApplicationFiled: August 8, 2022Publication date: April 18, 2024Inventors: Xuehua RUAN, Xiaobin JIANG, Gaohong HE, Xiaoming YAN, Wanting CHEN, Xuemei WU, Yan DAI, Tiantian LI, Miao YU
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Patent number: 11949137Abstract: The present invention belongs to the field of alkaline polymer electrolyte membranes, and relates to a comb-shaped structure polybenzimidazole anion exchange membrane with high conductivity and preparation method thereof. In the invention, firstly, polybenzimidazole is grafted with the non-cationic side chains to the max grafting rate to synthesize the de-protonated comb-shaped polybenzimidazole material, avoiding the N—H in benzimidazole forms ionic binding with cationic functional groups, which will reduce the reactivity and mobility of cationic groups; then react de-protonated comb-shaped polybenzimidazole with quaternization reagent to attach the pendent side chain with cationic functional groups, making it easy to aggregate to form ion clusters and hydrophilic/hydrophobic microphase separation. The anion exchange membrane prepared in this invention has excellent conductivity, mechanical properties and alkaline stability.Type: GrantFiled: March 19, 2020Date of Patent: April 2, 2024Assignee: DALIAN UNIVERSITY OF TECHNOLOGYInventors: Xuemei Wu, Gaohong He, Xiaozhou Wang, Xiaoming Yan, Tiantian Li, Wanting Chen, Xiangcun Li, Wu Xiao, Xiaobin Jiang, Fujun Cui, Yan Dai, Xuehua Ruan
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Publication number: 20230256396Abstract: In a method for preparing a zeolite CHA membrane, a gel conversion method is adopted to assist crystallization, seed solutions with different concentrations and sizes are successively coated on the surface of a porous support to obtain a seed layer, a synthetic gel is coated on the seed layer to obtain a gel layer, and then the porous support is subjected to a membrane crystallization reaction to obtain a zeolite CHA membrane. The method skips the conventional stage of converting the heterogeneous zeolite into the zeolite CHA seed, and directly takes a heterogeneous zeolite with the same secondary structural unit as that of zeolite CHA as a seed to directly prepare a zeolite CHA membrane on a support.Type: ApplicationFiled: March 4, 2021Publication date: August 17, 2023Inventors: Jianhua YANG, Linzhe LI, Ying LU, Gaohong HE, Jinming LU, Yan ZHANG
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Patent number: 11697092Abstract: A separation and purification coupled process with a high helium yield and diversified products is provided. The process is as follows. Firstly, a low-concentration helium-containing gas after being pressurized and pre-treated enters a two-stage and two-section membrane separation unit to produce a helium product with a medium concentration by concentrating stage by stage through the membrane separation unit. A part of the helium with medium concentration enters an adsorption unit for further concentration to produce a helium product above grade A.Type: GrantFiled: June 23, 2021Date of Patent: July 11, 2023Assignees: Dalian University of Technology, Panjin Institute of Industrial Technology, Dalian University of TechnologyInventors: Gaohong He, Minggang Guo, Yan Dai, Xuehua Ruan, Panpan Mi, Xiaohang Yang
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Publication number: 20230146223Abstract: The present invention discloses a nucleic acids extraction system and method based on a 3D-printed microdevice, and belongs to the technical field of nucleic acids extraction. The nucleic acids extraction system is a monomer 3D-printed microdevice or a 3D-printed microdevice prepared by 3D printing technologies, the monomer 3D-printed microdevice comprises a nucleic acids binding region and a handle region, and the 3D-printed microdevice is composed of more than two monomer 3D-printed microdevices through a joining region; and the nucleic acids binding region is made of photosensitive resin or thermoplastic. An extraction method for the nucleic acids extraction system based on a 3D-printed microdevice is used to bind, clean and elute nucleic acids by moving the monomer 3D-printed microdevice or the 3D-printed microdevice among a solution containing target nucleic acids, a washing buffer and an elution buffer.Type: ApplicationFiled: June 18, 2021Publication date: May 11, 2023Inventors: Xiaobin JIANG, Peipei LI, Menghang LI, Zhijie YUAN, Gaohong HE, Wu XIAO, Xiangcun LI, Xuemei WU
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Patent number: 11452948Abstract: An experiment system and method for accurate controlling of macromolecular crystallization process. The system has a platform-equipped horizontal moving slot and channel dedicated backwash module, a droplet adding control module, an observing module, a user observation computer system, and an experimental condition control module. A high-precision movement knob of the x-axis platform and the y-axis platform of the system and the accurate position control of a syringe needle are used to ensure that the macromolecular solution can be added into the correct positions of convex or concave. The crystallization induction period of the target crystal form is determined by the real-time data of the high-speed microcamera, and the crystal cultivation environment is adjusted in real time. This is simple and easy to operate, high in productivity, can be applied to the conventional experimental replication.Type: GrantFiled: December 18, 2018Date of Patent: September 27, 2022Assignee: DALIAN UNIVERSITY OF TECHNOLOGYInventors: Xiaobin Jiang, Mingguang Han, Gaohong He, Jin Li, Xiangcun Li, Wu Xiao, Xuemei Wu
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Publication number: 20210402345Abstract: A separation and purification coupled process with a high helium yield and diversified products is provided The process is as follows. Firstly, a low-concentration helium-containing gas after being pressurized and pre-treated enters a two-stage and two-section membrane separation unit to produce a helium product with a medium concentration by concentrating stage by stage through the membrane separation unit. A part of the helium with medium concentration enters an adsorption unit for further concentration to produce a helium product above grade A.Type: ApplicationFiled: June 23, 2021Publication date: December 30, 2021Inventors: Gaohong He, Minggang Guo, Yan Dai, Xuehua Ruan, Panpan Mi, Xiaohang Yang
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Publication number: 20210202972Abstract: The present invention belongs to the field of alkaline polymer electrolyte membranes, and relates to a comb-shaped structure polybenzimidazole anion exchange membrane with high conductivity and preparation method thereof. In the invention, firstly, polybenzimidazole is grafted with the non-cationic side chains to the max grafting rate to synthesize the de-protonated comb-shaped polybenzimidazole material, avoiding the N—H in benzimidazole forms ionic binding with cationic functional groups, which will reduce the reactivity and mobility of cationic groups; then react de-protonated comb-shaped polybenzimidazole with quaternization reagent to attach the pendent side chain with cationic functional groups, making it easy to aggregate to form ion clusters and hydrophilic/hydrophobic microphase separation. The anion exchange membrane prepared in this invention has excellent conductivity, mechanical properties and alkaline stability.Type: ApplicationFiled: March 19, 2020Publication date: July 1, 2021Inventors: Xuemei WU, Gaohong HE, Xiaozhou WANG, Xiaoming YAN, Tiantian LI, Wanting CHEN, Xiangcun LI, Wu XIAO, Xiaobin JIANG, Fujun CUI, Yan DAI, Xuehua RUAN
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Patent number: 10675557Abstract: The present invention provides a continuous crystallization method under control of the multistage membrane modules, and belongs to the technical field of crystallization engineering. A crystallization solution is added to a crystallizer, and a stirring apparatus and a temperature control apparatus are started. After the system running stability, the loop of crystallization is started. Meanwhile, the coolant or antisolvent feed liquid loop is also started. The crystallization solution can respectively conduct crystal nucleation, growth and ripening in the multistage membrane modules, and then the crystallization solution is transported into a filter device and a drying apparatus to obtain the final crystal products. The desired crystal products can be obtained by the systematical control of the nucleation and crystal growth through the flow and the temperature of the crystallization solution, coolant or antisolvent feed liquid, and the contact time between two liquid phases.Type: GrantFiled: November 3, 2017Date of Patent: June 9, 2020Assignee: DALIAN UNIVERSITY OF TECHNOLOGYInventors: Xiaobin Jiang, Guannan Li, Gaohong He, Linghan Tuo, Dapeng Lu, Wu Xiao, Xiangcun Li, Xuemei Wu
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Patent number: 10633554Abstract: The present invention provides a surface modification method based on the polymerization and cross-linking solidification of dopamine and/or its derivatives, which belongs to the technical field about composite material fabrication. The principle of dopamine polymerization and the formation process of polydopamine coating layer are the foundation of the present invention. This innovative method is established after deeply analyzing the failure mechanism of polydopamine coating layer in severe environments, such as organic solvents and acidic/alkalic environments. The critical work is finding out an eligible cross-linking agent which could react with the active functional groups in polydopamine. After cross-linking reaction, the soluble low-molecular-weight dopamine oligomers could be transformed into the insoluble three-dimensional stereographic networks.Type: GrantFiled: December 11, 2017Date of Patent: April 28, 2020Assignee: DALIAN UNIVERSITY OF TECHNOLOGYInventors: Xuehua Ruan, Gaohong He, Xuxing Liao, Yan Xu, Xiaoming Yan, Yan Dai, Ning Zhang
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Publication number: 20200114277Abstract: The present invention provides a continuous crystallization method under control of the multistage membrane modules, and belongs to the technical field of crystallization engineering. A crystallization solution is added to a crystallizer, and a stirring apparatus and a temperature control apparatus are started. After the system running stability, the loop of crystallization is started. Meanwhile, the coolant or antisolvent feed liquid loop is also started. The crystallization solution can respectively conduct crystal nucleation, growth and ripening in the multistage membrane modules, and then the crystallization solution is transported into a filter device and a drying apparatus to obtain the final crystal products. The desired crystal products can be obtained by the systematical control of the nucleation and crystal growth through the flow and the temperature of the crystallization solution, coolant or antisolvent feed liquid, and the contact time between two liquid phases.Type: ApplicationFiled: November 3, 2017Publication date: April 16, 2020Inventors: Xiaobin JIANG, Guannan LI, Gaohong HE, Linghan TUO, Dapeng LU, Wu XIAO, Xiangcun LI, Xuemei WU
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Publication number: 20200108330Abstract: An experiment system and method for accurate controlling of macromolecular crystallization process. The system has a platform-equipped horizontal moving slot and channel dedicated backwash module, a droplet adding control module, an observing module, a user observation computer system, and an experimental condition control module. A high-precision movement knob of the x-axis platform and the y-axis platform of the system and the accurate position control of a syringe needle are used to ensure that the macromolecular solution can be added into the correct positions of convex or concave. The crystallization induction period of the target crystal faun is determined by the real-time data of the high-speed microcamera, and the crystal cultivation environment is adjusted in real time. This is simple and easy to operate, high in productivity, can be applied to the conventional experimental replication.Type: ApplicationFiled: December 18, 2018Publication date: April 9, 2020Inventors: Xiaobin JIANG, Mingguang HAN, Gaohong HE, Jin LI, Xiangcun LI, Wu XIAO, Xuemei WU
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Publication number: 20190177570Abstract: The present invention provides a surface modification method based on the polymerization and cross-linking solidification of dopamine and/or its derivatives, which belongs to the technical field about composite material fabrication. The principle of dopamine polymerization and the formation process of polydopamine coating layer are the foundation of the present invention. This innovative method is established after deeply analyzing the failure mechanism of polydopamine coating layer in severe environments, such as organic solvents and acidic/alkalic environments. The critical work is finding out an eligible cross-linking agent which could react with the active functional groups in polydopamine. After cross-linking reaction, the soluble low-molecular-weight dopamine oligomers could be transformed into the insoluble three-dimensional stereographic networks.Type: ApplicationFiled: December 11, 2017Publication date: June 13, 2019Applicant: Dalian University of TechnologyInventors: Xuehua RUAN, Gaohong HE, Xuxing LIAO, Yan XU, Xiaoming YAN, Yan DAI, Ning ZHANG