-
公开(公告)号：US20210129217A1
公开(公告)日：2021-05-06
申请号：US17090703
申请日：2020-11-05
Inventor： Yang LUO , Zilong WANG , Yuanfei Yang , Zhou HU , Dunbo Yu , Jiajun XIE , Yifan LIAO , Zhongkai WANG
Abstract: A method for preparing a rare earth anisotropic bonded magnetic powder, comprises the following steps: (1) preparing raw powder with RTBH as the main component, wherein, R is Nd or Pr/Nd, and T is a transition metal containing Fe; (2) adding La/Ce hydride and copper powder to the raw powder to form a mixture; (3) subjecting the mixture to atmosphere diffusion heat treatment to give the rare earth anisotropic bonded magnetic powder. The invention selects high-abundance rare earth elements La, Ce to replace Dy, Tb, Nd, Pr and other medium and heavy rare earth elements, which can achieve the same coercivity improvement effect while also significantly reducing the cost, thereby achieving efficient application of low-cost and high-abundance rare earths.
-
72.发明授权公开(公告)号：US10811175B2
公开(公告)日：2020-10-20
申请号：US15796153
申请日：2017-10-27
Applicant: GRIREM ADVANCED MATERIALS CO., LTD.
Inventor： Yang Luo , Chao Yuan , Kuo Men , Ningtao Quan , Hongbin Zhang , Wenlong Yan , Dunbo Yu , Yuanfei Yang
IPC: H01F1/055 , B22F9/04 , C22C33/02 , C22C1/04 , H01F1/057 , C22C1/03 , C22C28/00 , C22C38/00 , C22C38/10
Abstract: An alloy material, a bonded magnet, and a modification method of a rare-earth permanent magnetic powder are provided by the present application. A melting point of the alloy material is lower than 600° C. and a composition of the alloy material by an atomic part is RE100-x-yMxNy, wherein RE is one or more of non-heavy rare-earth Nd, Pr, Sm, La and Ce, M is one or more of Cu, Al, Zn and Mg, N is one or more of Ga, In and Sn, x=10-35 and y=1-15.
-
公开(公告)号：US20200318005A1
公开(公告)日：2020-10-08
申请号：US16620850
申请日：2018-10-15
Inventor： Jinqiu YU , Chengpeng DIAO , Hao WU , Lei CUI , Huaqiang HE
IPC: C09K11/77 , C01F17/253 , C01F17/271 , C30B29/12 , G01T1/202
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.
-
Patent Agency Ranking
公开(公告)号：US20200263280A1
公开(公告)日：2020-08-20
申请号：US16791088
申请日：2020-02-14
Applicant: GRIREM ADVANCED MATERIALS CO., LTD.
Inventor： Yang LUO , Xiao LIN , Guiyong WU , Jiajun XIE , Zilong WANG , Wenlong YAN , Zhongkai WANG , Dunbo YU
Abstract: The present disclosure discloses an yttrium (Y)-added rare-earth permanent magnetic material and a preparation method thereof. A chemical formula of the material expressed in atomic percentage is (YxRE1-x)aFebalMbNc, wherein 0.05≤x≤0.4, 7≤a≤13, 0≤b≤3, 5≤c≤20, and the balance is Fe, namely, bal=100-a-b-c; RE represents a rare-earth element Sm, or a combination of the rare-earth element Sm and any one or more elements of Zr, Nd and Pr; M represents Co and/or Nb; and N represents nitrogen. In the preparation method, the rare-earth element Y is utilized to replace the element Sm of a samarium-iron-nitrogen material. By regulating a ratio of the element Sm to the element Y, viscosity of an alloy liquid can be reduced, and an amorphous forming ability of the material is enhanced.
-
75.发明申请公开(公告)号：US20180363098A1
公开(公告)日：2018-12-20
申请号：US15736874
申请日：2016-06-16
Applicant: GRIREM ADVANCED MATERIALS CO., LTD.
Inventor： Xiaowei Huang , Yang Xu , Jinyu Wang , Liangshi Wang , Zongyu Feng , Dali Cui , Zhiqi Long , Xu Sun , Na Zhao
CPC classification number: C22B7/007 , C01F7/04 , C01F7/0693 , C01F7/22 , C01F7/24 , C01F7/26 , C01F17/0006 , C01F17/0043 , C01F17/0068 , C01F17/0075 , C22B7/00 , C22B21/0023 , C22B59/00 , Y02P10/234
Abstract: Disclosed is a method of recovering rare earth, aluminum and silicon from rare earth-containing aluminum-silicon scrap. The method comprises: S1, acid-leaching the rare earth-containing aluminum-silicon scrap with an inorganic acid aqueous solution to obtain a silicon-rich slag and acid leached solution containing rare earth and aluminum element; S2, adding an alkaline substance into the acid leached solution containing the rare earth and aluminum element and controlling a PH value of the acid leaching solution between 3.5 to 5.2, performing a solid-liquid separation to obtain a aluminum hydroxide-containing precipitate and a rare earth-containing solution filter; S3, reacting the aluminum hydroxide containing precipitate with sodium hydroxidee to obtain sodium metaaluminate solution and aluminum-silicon slag, and preparing a rare earth compound product with the rare earth-containing filtrate. The method dissolves an the aluminum and the rare earth with the acid and then via step wise alkaline conversion, convert aluminum icons to an aluminum hydroxide precipitate separated from rare earth ions, and then adds excessive amounts of sodium hydroxide to convert the aluminum hydroxide to a sodium metaaluminate solution, thereby realizing high-efficiency recovery of both rare earth and aluminum while significantly reducing the consumption of the sodium hydroxide and thus recovery cost.
-
76.发明申请公开(公告)号：US20180182517A1
公开(公告)日：2018-06-28
申请号：US15796153
申请日：2017-10-27
Applicant: GRIREM ADVANCED MATERIALS CO., LTD.
Inventor： Yang Luo , Chao Yuan , Kuo Men , Ningtao Quan , Hongbin Zhang , Wenlong Yan , Dunbo Yu , Yuanfei Yang
Abstract: An alloy material, a bonded magnet, and a modification method of a rare-earth permanent magnetic powder are provided by the present application. A melting point of the alloy material is lower than 600° C. and a composition of the alloy material by an atomic part is RE100-x-yMxNy, wherein RE is one or more of non-heavy rare-earth Nd, Pr, Sm, La and Ce, M is one or more of Cu, Al, Zn and Mg, N is one or more of Ga, In and Sn, x=10-35 and y=1-15.
-
77.发明申请公开(公告)号：US20180021759A1
公开(公告)日：2018-01-25
申请号：US15546152
申请日：2016-01-26
Applicant: GRIREM ADVANCED MATERIALS CO., LTD.
Inventor： Xiaowei Huang , Qi Wang , Mei Yue , Qiang Zhong , Lei Wang , Yongke Hou , Meisheng Cui
IPC: B01J23/83 , B01D53/86 , B01J23/10 , B01J23/34 , B01J35/08 , B01J37/02 , B01J35/00 , B01J35/10 , B01J37/04 , B01J37/03 , B01J37/00 , B01J37/10 , B01D53/94 , B01J35/06
CPC classification number: B01J23/83 , B01D53/86 , B01D53/94 , B01D2255/407 , B01J23/10 , B01J23/34 , B01J23/63 , B01J35/0013 , B01J35/026 , B01J35/06 , B01J35/08 , B01J35/1014 , B01J37/009 , B01J37/0236 , B01J37/03 , B01J37/038 , B01J37/04 , B01J37/10 , B01J2523/00 , B01J2523/3712 , B01J2523/48 , B01J2523/3725 , B01J2523/3706 , B01J2523/3718 , B01J2523/36 , B01J2523/72 , B01J2523/24 , B01J2523/17 , B01J2523/3756 , B01J2523/23 , B01J2523/3743 , B01J2523/847
Abstract: Provided are a cerium-zirconium composite oxide, a preparation method therefor and application of a catalyst. The cerium-zirconium composite oxide has a composite phase structure, and comprises a cerium oxide phase and a cerium-zirconium solid solution phase, or consists of two or more cerium-zirconium solid solution phases with different crystal structures and different chemical compositions, wherein the chemical formula of the cerium-zirconium solid solution phase is CexZr1-x-yMyO2, where M is at least one selected from the group consisting of a rare earth element other than cerium, a transition metal element and an alkaline earth metal element, x is 15-85 mol %, and y is 0-20 mol %.
-
78.发明申请公开(公告)号：US20150308657A1
公开(公告)日：2015-10-29
申请号：US14443053
申请日：2013-12-12
Applicant: GRIREM ADVANCED MATERIALS CO., LTD.
Inventor： Ronghui LIU , Yuanhong LIU , Huaqiang HE , Xiaowei HUANG , Wei GAO , Tao HE , Yunsheng HU , Weidong ZHUANG
CPC classification number: C09K11/7792 , C09K11/0883 , C09K11/7734 , F21K9/64 , F21V9/30 , F21Y2115/10 , H01L33/502 , H05B33/14 , Y02B20/181
Abstract: An oxynitride orange-red fluorescent substance and a light-emitting film or sheet and a light-emitting device comprising the same are disclosed. The chemical formula of the oxynitride orange-red fluorescent substance is MmAaSixNyOz:dR in which the element M is one or more of the elements Ca, Sr and Ba, the element A is Al or a mixture of Al with one or more of the elements Ga, La, Sc and Y, the element R is one or more of the elements Ce, Eu and Mn, and chemical formula meets 0.8≦m≦1.2, 1
-
-
-
-
-
-
-
Search Results
78
records
(took 0.031 seconds)
