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41.发明授权公开(公告)号：US12109551B2
公开(公告)日：2024-10-08
申请号：US17422691
申请日：2020-09-04
Applicant: GRIREM ADVANCED MATERIALS CO., LTD. , Rare Earth Functional Materials (Xiong 'an) Innovation Center Co., Ltd. , GRIREM HI-TECH CO., LTD.
Inventor： Xiaowei Huang , Yongqi Zhang , Hongwei Li , Zhizhe Zhai , Qiang Zhong , He Zhang , Meisheng Cui , Yongke Hou , Hao Wang , Zongyu Feng
IPC: B01J21/06 , B01J6/00 , B01J23/02 , B01J23/10 , B01J35/00 , B01J35/30 , B01J35/39 , B01J37/04 , F01N3/10
CPC classification number: B01J23/10 , B01J6/001 , B01J21/066 , B01J23/02 , B01J35/19 , B01J35/397 , B01J35/398 , B01J37/04 , F01N3/10 , F01N2570/14
Abstract: The present invention discloses a rare-earth-manganese/cerium-zirconium-based composite compound, a method for preparing the same, and a use thereof. The composite compound is of a core-shell structure with a general formula expressed as: A REcBaOb-(1-A)CexZr(1-x-y)MyO2-z, wherein 0.1≤A≤0.3, preferably 0.1≤A≤0.2; a shell layer has a main component of rare-earth manganese oxide with a general formula of REcMnaOb, wherein RE is a rare-earth element or a combination of more than one rare-earth elements, and B is Mn or a combination of Mn and a transition metal element, 1≤a≤8, 2≤b≤18, and 0.25≤c≤4; and a core has a main component of cerium-zirconium composite oxide with a general formula of CexZr(1-x-y)MyO2-z, wherein M is one or more non-cerium rare-earth elements, 0.1≤x≤0.9, 0≤y≤0.3, and 0.01≤z≤0.3. The composite compound enhances an oxygen storage capacity of a cerium-zirconium material through an interface effect, thereby increasing a conversion rate of a nitrogen oxide.
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公开(公告)号：US11981983B2
公开(公告)日：2024-05-14
申请号：US17090710
申请日：2020-11-05
Inventor： Yang Luo , Zhongkai Wang , Yuanfei Yang , Zilong Wang , Dunbo Yu , Yifan Liao , Jiajun Xie , Zhou Hu
CPC classification number: C22C33/0257 , B22F1/05 , B22F1/065 , B22F1/102 , H01F1/0578 , H01F1/059 , H01F41/0266 , B22F2301/355 , B22F2304/10 , B22F2998/10 , B22F1/10 , B22F3/02 , B22F2998/10 , B22F1/10 , B22F3/20 , B22F2998/10 , B22F1/10 , B22F3/225 , B22F2998/10 , B22F1/10 , B22F3/18
Abstract: The invention discloses a composite rare earth anisotropic bonded magnet and a preparation method thereof. The composite rare earth anisotropic bonded magnet comprises a Nd—Fe—B magnetic powder, a Sm—Fe—N magnetic powder, a binder and an inorganic nano-dispersant. The preparation method comprises steps of preparing a Nd—Fe—B magnetic powder by a HDDR method, preparing a Sm—Fe—N magnetic powder by a powder metallurgy method, mixing the Nd—Fe—B magnetic powder, the Sm—Fe—N magnetic powder, the binder and the inorganic nano-dispersant at a specific ratio to finally obtain the composite rare earth anisotropic bonded magnet. The invention, by adding an inorganic nano-dispersant, enables the full dispersion of the fine Sm—Fe—N powder during the mixing process of the binder, the Nd—Fe—B magnetic powder and the Sm—Fe—N powder, and thus makes the fine Sm—Fe—N powder and the binder evenly coated on the surface of the anisotropic Nd—Fe—B magnetic powder.
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公开(公告)号：US11802326B2
公开(公告)日：2023-10-31
申请号：US17331531
申请日：2021-05-26
Applicant: GRIREM HI-TECH CO., LTD. , GRIREM ADVANCED MATERIALS CO., LTD. , Grirem (Rongcheng) Co., Ltd.
Inventor： Yang Luo , Yuanfei Yang , Zilong Wang , Dunbo Yu , Hongbin Zhang , Jiajun Xie , Zhou Hu , Zhongkai Wang
CPC classification number: C22C38/002 , B22F1/102 , B22F7/062 , C22C38/005 , H01F1/0558 , H01F1/0576 , H01F1/0578 , H01F41/0266 , B22F2202/05 , B22F2301/355 , C22C2202/02 , B22F2998/10 , B22F1/10 , B22F3/02 , B22F2003/248
Abstract: An anisotropic bonded magnet and a preparation method thereof are provided. By stacking magnets having different magnetic properties and/or densities, the magnets in the middle have high properties and the magnets at two ends and/or the periphery have low properties, thereby compensating for a property deviation caused by a difference in pressing densities during a pressing process, and improving the property uniformity of the magnets in an axial direction. The method solves the problem of “low in the middle and high at two ends” caused by the phenomenon of non-uniform magnetic field orientation and density along a height direction during orientation and densification.
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44.发明公开公开(公告)号：US20230321632A1
公开(公告)日：2023-10-12
申请号：US18027044
申请日：2021-08-27
Applicant: GRIREM ADVANCED MATERIALS CO., LTD. , RARE EARTH FUNCTIONAL MATERIALS (XIONG 'AN) INNOVATION CENTER CO., LTD. , GRIREM HI-TECH CO., LTD.
Inventor： Xiaowei HUANG , Yongke HOU , Zheng ZHAO , Yongqi ZHANG , Juanyu YANG , Meisheng CUI , Zhizhe ZHAI , Yang XU , Zongyu FENG , Shilei CHEN
CPC classification number: B01J21/066 , B01J35/1014 , B01J37/009 , B01J37/038 , B01J23/10 , B01J35/1038 , B01J35/1042 , B01D53/945 , B01J37/08 , B01D2255/407 , B01D2258/01 , B01D2255/908
Abstract: The present disclosure relates to a cerium-zirconium-based composite oxide having gradient element distribution and a preparation method therefor. According to the present disclosure, the cerium-zirconium-based composite oxide having gradient element distribution is prepared by a step-by-step precipitation method. First, a zirconium-rich component is precipitated to form a crystal structure and a crystal grain stack structure which have high thermal stability, slow down the segregation of zirconium on a surface after high-temperature treatment, and reduce element migration among crystal grains; second, a cerium-rich component is precipitated to improve the cerium content of the surface layers of the crystal grains, improve the utilization rate of the cerium element, and improve the oxygen storage amount and the oxygen storage rate.
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公开(公告)号：US11685860B2
公开(公告)日：2023-06-27
申请号：US17441920
申请日：2020-10-30
Applicant: GRIREM ADVANCED MATERIALS CO., LTD. , GRIREM HI-TECH CO., LTD. , Rare Earth Functional Materials (Xiong 'an) Innovation Center Co., Ltd.
Inventor： Jinqiu Yu , Liang Luo , Chengpeng Diao , Lei Cui , Hao Wu , Huaqiang He
CPC classification number: C09K11/7719 , C30B11/00 , G01T1/362
Abstract: A rare earth halide scintillation material the chemical formula of the material being CeBr3+x, wherein 0.0001x0.1. The rare earth halide scintillation material has excellent scintillation properties including high light output, high energy resolution, and fast decay.
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Patent Agency Ranking
公开(公告)号：US11512251B2
公开(公告)日：2022-11-29
申请号：US16620850
申请日：2018-10-15
Inventor： Jinqiu Yu , Chengpeng Diao , Hao Wu , Lei Cui , Huaqiang He
IPC: G01T1/29 , G01T1/36 , C09K11/77 , C01F17/253 , C01F17/271 , C30B29/12 , G01T1/202 , E21B49/00
Abstract: The present invention provides a rare-earth halide scintillating material and application thereof. The rare-earth halide scintillating material has a chemical formula of REaCebX3, wherein RE is a rare-earth element La, Gd, Lu or Y, X is one or two of halogens Cl, Br and I, 0≤a≤1.1, 0.01≤b≤1.1, and 1.0001≤a+b≤1.2. By taking a +2 valent rare-earth halide having the same composition as a dopant to replace a heterogeneous alkaline earth metal halide in the prior art for doping, the rare-earth halide scintillating material is relatively short of a halogen ion. The apparent valence state of a rare-earth ion is between +2 and +3. The rare-earth halide scintillating material belongs to non-stoichiometric compounds, but still retains a crystal structure of an original stoichiometric compound, and has more excellent energy resolution and energy response linearity than the stoichiometric compound.
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公开(公告)号：US11485907B2
公开(公告)日：2022-11-01
申请号：US16469114
申请日：2018-09-29
Inventor： Ronghui Liu , Yuanhong Liu , Xia Zhang , Wei Gao , Xiaole Ma , Huibing Xu
Abstract: The present disclosure relates to the technical field of luminescent materials, and more particularly, to a nitride luminescent material and a light emitting device comprising the luminescent material. The nitride luminescent material recited in the present disclosure includes an inorganic compound with the structural composition RwQxSiyNz, the excitation wavelength of the luminescent material is between 300-650 nm, and the emission main peak of the NIR light region is broadband emission between 900-1100 nm; the excitation wavelength of the luminescent material is relatively broad and capable of excellent absorption of ultraviolet visible light, and has more intensive NIR emission as compared with NIR organic luminescent materials and inorganic luminescent materials of other systems, so it is an ideal application material for NIR devices.
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48.发明申请公开(公告)号：US20220184583A1
公开(公告)日：2022-06-16
申请号：US17422691
申请日：2020-09-04
Applicant: GRIREM ADVANCED MATERIALS CO.,LTD. , Rare Earth Functional Materials (Xiong'an) Innovation Center Co., Ltd. , GRIREM HI-TECH CO.,LTD.
Inventor： Xiaowei HUANG , Yongqi ZHANG , Hongwei LI , Zhizhe ZHAI , Qiang ZHONG , He ZHANG , Meisheng CUI , Yongke HOU , Hao WANG , Zongyu FENG
Abstract: The present invention discloses a rare-earth-manganese/cerium-zirconium-based composite compound, a method for preparing the same, and a use thereof. The composite compound is of a core-shell structure with a general formula expressed as: A REcBaOb-(1-A)CexZr(1-x-y)MyO2-z, wherein 0.1≤A≤0.3, preferably 0.1≤A≤0.2; a shell layer has a main component of rare-earth manganese oxide with a general formula of REcMnaOb, wherein RE is a rare-earth element or a combination of more than one rare-earth elements, and B is Mn or a combination of Mn and a transition metal element, 1≤a≤8, 2≤b≤18, and 0.25≤c≤4; and a core has a main component of cerium-zirconium composite oxide with a general formula of CexZr(1-x-y)MyO2-z, wherein M is one or more non-cerium rare-earth elements, 0.1≤x≤0.9, 0≤y≤0.3, and 0.01≤z≤0.3. The composite compound enhances an oxygen storage capacity of a cerium-zirconium material through an interface effect, thereby increasing a conversion rate of a nitrogen oxide.
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49.发明申请公开(公告)号：US20210388262A1
公开(公告)日：2021-12-16
申请号：US17254224
申请日：2019-07-09
Applicant: Grirem Advanced Materials Co.,Ltd
Inventor： Xiaoxia CHEN , Yuanhong LIU , Ronghui LIU , Yuan XUE
Abstract: Disclosed are a red light and near-infrared light-emitting material and a preparation method thereof, and a light-emitting device including the light-emitting material. The red light and near-infrared light-emitting material contains a compound represented by a molecular formula, aSc2O3.Ga2O3.bR2O3, wherein the element R includes one or two of Cr, Ni, Fe, Yb, Nd or Er; 0.001≤a≤0.6; and 0.001≤b≤0.1. The light-emitting material can be excited by a spectrum having a wide wavelength range (ultraviolet light or purple light or blue light) to emit light with a wide spectrum of 650 nm to 1700 nm or multiple spectra, thus having higher light-emitting intensity.
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公开(公告)号：US20210375512A1
公开(公告)日：2021-12-02
申请号：US17331544
申请日：2021-05-26
Applicant: GRIREM HI-TECH CO., LTD. , GRIREM ADVANCED MATERIALS CO.,LTD. , Grirem (Rongcheng) Co., Ltd.
Inventor： Yang LUO , Yuanfei YANG , Zilong WANG , Dunbo YU , Jiajun XIE , Kaiwen WU , Yifan LIAO , Jichen JIA
Abstract: An anisotropic bonded magnet and a preparation method thereof are provided. Through a method of stacking magnets which are different in content of SmFeN and/or have different densities, the magnets in the middle have high properties and the magnets at two ends and/or the periphery have low properties, thereby compensating for a property deviation caused by a difference in densities during a pressing process, and improving the property uniformity of the magnets in an axial direction. The method avoids the phenomenon of non-uniform magnetic field orientation and density in a height direction during orientation and densification as well as the phenomenon of low in the middle and high at two ends.
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