Patents Assigned to NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD.
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Publication number: 20230416870Abstract: A method for enriching niobium and titanium in a mineral containing iron, niobium, and titanium, includes: reacting raw materials comprising 1 part by weight of a mineral containing iron, niobium, and titanium, 0.1-0.8 part by weight of a nickel-containing substance and 0.2-1 part by weight of carbon at 800-1500° C. to obtain a nickel-iron alloy and a niobium-titanium rich slag, where an amount of the mineral containing iron, niobium, and titanium is counted in terms of iron element, and an amount of the nickel-containing substance is counted in terms of nickel element. The nickel-containing substance is one or more selected from the group consisting of oxides of nickel and nickel minerals.Type: ApplicationFiled: May 5, 2022Publication date: December 28, 2023Applicants: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS, NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD.Inventors: Yubao Liu, Erxiong Zhao, Xianheng Zhang, Pengfei Yang, Yuan Li, Guohua Chen, Weidong Lv, Rizeng Gao, Xuchen Miao, Bing Yu, Fusheng Hou, Quanjun Zhang, Haitao Huang, Qicao Yan, Yang Zhang, Jia Kang, Yueyang Dong, Ran Liu, Yiren Hao
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Patent number: 11590480Abstract: The present invention discloses a molecular sieve and its preparation method. The molecular sieve has micromorphology in a football shape and consists of molecular sieve framework and active elements. The molecular sieve framework comprises silicon element and aluminum element; the active elements comprise copper element and rare earth elements. The rare earth elements are one or more selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm, Eu, Sc and Y. The mass ratio of the silicon element to the aluminum element is 3-9:1. The content of the copper element in the molecular sieve is 1.5-3.2 wt %. The mass of rare earth elements is 50 ppm-2 wt % of the molecular sieve framework. The mass of the silicon element is calculated by silicon dioxide, the mass of aluminum element is calculated by aluminum oxide, the mass of copper element is calculated by copper oxides, and the mass of rare earth elements is calculated by rare earth oxides.Type: GrantFiled: May 25, 2021Date of Patent: February 28, 2023Assignees: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS, NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD.Inventors: Yan Wang, Zhaoqiang Li, Zhiyong Ding, Rongrong Fan, Cheng Zhang, Yu Wang, Xin Guo, Na Kang, Wei Liu, Rong Wang, Jing Song
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Patent number: 11427884Abstract: A method for treating fluorine-containing rare earth mineral particles may include mixing a first batch of the fluorine-containing rare earth mineral particles with a first sulfuric acid solution in a weight ratio in the range of 2-10:1 of the sulfuric acid in the first sulfuric acid solution to the first batch of fluorine-containing rare earth mineral particles, and heating the mixture to cause a liquid-solid reaction. The solid phase and liquid phase may be separated after the reaction to obtain an acid filtrate and an acid residue. The acid residue may be leached with water to obtain an aqueous leaching liquor that comprises a rare earth sulfate and an aqueous leaching residue. A second sulfuric acid solution may be added to the acid filtrate in an amount such that the sulfuric acid concentration of the acid filtrate is 40-85 wt %.Type: GrantFiled: June 21, 2019Date of Patent: August 30, 2022Assignees: NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD., BAOTOU RESEARCH INSTITUTE OF RARE EARTHSInventors: Jianguo Cui, Zhe Wang, Ruien Hou, Dong Li, Meng Xu, Ting Gao, Xiaoli Hao, Bo Li, Yang Zhang
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Patent number: 11305345Abstract: A method for preparing a NdFeB permanent magnetic material may include providing a covered NdFeB magnetic powder by depositing heavy rare earth particles or high-melting particles onto a NdFeB magnetic powder by physical vapor deposition; and performing orientation molding and sintering on the covered NdFeB magnetic powder to provide the NdFeB permanent magnetic material.Type: GrantFiled: December 21, 2017Date of Patent: April 19, 2022Assignees: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS, NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD., BAOTOU IRON & STEEL (GROUP) CO., LTD., XIAMEN INSTITUTE OF RARE-EARTH MATERIALS, BAOTOU JINSHAN MAGNETIC MATERIAL CO. LTDInventors: Liangcheng Sun, Zhanfeng Yang, Zhihong Zhang, Xiaoyu Liu, Shufeng Liu, Fan Yang, Jixiang Liu, Yu Wang, Jingya Li, Fei Lu, Shupu Lou, Hui Li, Peixin Chen, Yang Bai, Yu Cheng, Feng Wang, Tiancang Zheng, Feng Xia, Caina Sun
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Publication number: 20210283586Abstract: The present invention discloses a molecular sieve and its preparation method. The molecular sieve has micromorphology in a football shape and consists of molecular sieve framework and active elements. The molecular sieve framework comprises silicon element and aluminum element; the active elements comprise copper element and rare earth elements. The rare earth elements are one or more selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm, Eu, Sc and Y. The mass ratio of the silicon element to the aluminum element is 3-9:1. The content of the copper element in the molecular sieve is 1.5-3.2 wt %. The mass of rare earth elements is 50 ppm-2 wt % of the molecular sieve framework. The mass of the silicon element is calculated by silicon dioxide, the mass of aluminum element is calculated by aluminum oxide, the mass of copper element is calculated by copper oxides, and the mass of rare earth elements is calculated by rare earth oxides.Type: ApplicationFiled: May 25, 2021Publication date: September 16, 2021Applicants: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS, NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD.Inventors: Yan Wang, Zhaoqiang Li, Zhiyong Ding, Rongrong Fan, Cheng Zhang, Yu Wang, Xin Guo, Na Kang, Wei Liu, Rong Wang, Jing Song
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Patent number: 11110437Abstract: A method for preparing an SCR catalyst may include: (1) placing a first aqueous solution containing a titanium oxide and a tungstate in an electric field environment, adjusting the pH value of the first aqueous solution, and adjusting the current direction of the electric field environment to obtain a first mixture; (2) providing a second mixture by, in the electric field environment, adding dropwise a second aqueous solution containing a soluble salt of one or more active components, a copper-organic polyamine complex and a dispersant to the first mixture, and adjusting the current direction; and (3) processing the second mixture to obtain the SCR catalyst. The one or more active components may be selected from Ce, Zr, Cu, Fe, Pr and Sc.Type: GrantFiled: July 17, 2019Date of Patent: September 7, 2021Assignees: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS, NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD., HEBEI HWAT AUTOMOBILE COMPONENTS CO., LTD.Inventors: Wenyi Zhao, Yan Wang, Zhaoqiang Li, Cheng Zhang, Rongrong Fan, Xin Guo, Yu Wang, Rong Wang, Lihua Song, Yanhai Song, Yuan Li, Zhiyong Ding, Jing Song
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Publication number: 20210062295Abstract: A method for treating fluorine-containing rare earth mineral particles may include mixing a first batch of the fluorine-containing rare earth mineral particles with a first sulfuric acid solution in a weight ratio in the range of 2-10:1 of the sulfuric acid in the first sulfuric acid solution to the first batch of fluorine-containing rare earth mineral particles, and heating the mixture to cause a liquid-solid reaction. The solid phase and liquid phase may be separated after the reaction to obtain an acid filtrate and an acid residue. The acid residue may be leached with water to obtain an aqueous leaching liquor that comprises a rare earth sulfate and an aqueous leaching residue. A second sulfuric acid solution may be added to the acid filtrate in an amount such that the sulfuric acid concentration of the acid filtrate is 40-85 wt %.Type: ApplicationFiled: June 21, 2019Publication date: March 4, 2021Applicants: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS, NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD.Inventors: Jianguo Cui, Zhe Wang, Ruien Hou, Dong Li, Meng Xu, Ting Gao, Xiaoli Hao, Bo Li, Yang Zhang
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Publication number: 20200038845Abstract: A method for preparing an SCR catalyst may include: (1) placing a first aqueous solution containing a titanium oxide and a tungstate in an electric field environment, adjusting the pH value of the first aqueous solution, and adjusting the current direction of the electric field environment to obtain a first mixture; (2) providing a second mixture by, in the electric field environment, adding dropwise a second aqueous solution containing a soluble salt of one or more active components, a copper-organic polyamine complex and a dispersant to the first mixture, and adjusting the current direction; and (3) processing the second mixture to obtain the SCR catalyst. The one or more active components may be selected from Ce, Zr, Cu, Fe, Pr and Sc.Type: ApplicationFiled: July 17, 2019Publication date: February 6, 2020Applicants: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS, NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD., HEBEI HWAT AUTOMOBILE COMPONENTS CO., LTD.Inventors: Wenyi Zhao, Yan Wang, Zhaoqiang Li, Cheng Zhang, Rongrong Fan, Xin Guo, Yu Wang, Rong Wang, Lihua Song, Yanhai Song, Yuan Li, Zhiyong Ding, Jing Song
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Publication number: 20200001360Abstract: A method for preparing a NdFeB permanent magnetic material may include providing a covered NdFeB magnetic powder by depositing heavy rare earth particles or high-melting particles onto a NdFeB magnetic powder by physical vapor deposition; and performing orientation molding and sintering on the covered NdFeB magnetic powder to provide the NdFeB permanent magnetic material.Type: ApplicationFiled: December 21, 2017Publication date: January 2, 2020Applicants: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS, NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD., BAOTOU IRON & STEEL (GROUP) CO., LTD., XIAMEN INSTITUTE OF RARE-EARTH MATERIALS, BAOTOU JINSHAN MAGNETIC MATERIAL CO. LTDInventors: Liangcheng Sun, Zhanfeng Yang, Zhihong Zhang, Xiaoyu Liu, Shufeng Liu, Fan Yang, Jixiang Liu, Yu Wang, Jingya Li, Fei Lu, Shupu Lou, Hui Li, Peixin Chen, Yang Bai, Yu Cheng, Feng Wang, Tiancang Zheng, Feng Xia, Caina Sun