Methods of making inorganic compounds

    公开(公告)号:US10326133B2

    公开(公告)日:2019-06-18

    申请号:US15267167

    申请日:2016-09-16

    Abstract: The invention relates to a chemical compound of the formula NibM1cM2d(O)x(OH)y, wherein M1 denotes at least one element from the group consisting of Fe, Co, Mg, Zn, Cu and/or mixtures thereof, M2 denotes at least one element from the group consisting of Mn, Al, B, Ca, Cr and/or mixtures thereof, wherein b≤0.8, c≤0.5, d≤0.5, and x is a number between 0.1 and 0.8, y is a number between 1.2 and 1.9, and x+y=2. A process for the preparation thereof, and the use thereof as a precursor for the preparation of cathode material for secondary lithium batteries are described.

    Magnetic carrier for electrophotographic developer and process for producing the same, and two-component system developer

    公开(公告)号:US09952524B2

    公开(公告)日:2018-04-24

    申请号:US14404543

    申请日:2013-05-30

    Abstract: The present invention relates to a magnetic carrier for an electrophotographic developer comprising spherical composite core particles comprising at least ferromagnetic iron oxide fine particles and a cured phenol resin, and having an average particle diameter of 20 to 60 μm, the magnetic carrier for an electrophotographic developer satisfying the formula (1): σ1−σ0=−2 to 0 wherein σ0 represents a saturation magnetization (Am2/kg) of the carrier particles having a particle diameter in the vicinity of the average particle diameter of the magnetic carrier for an electrophotographic developer; and σ1 represents a saturation magnetization (Am2/kg) of the carrier particles having a particle diameter of less than 20 μm, and a two-component system developer using the magnetic carrier. The two-component system developer of the present invention includes a magnetic carrier used for an electrophotographic developer which can exhibit a good durability, is free from occurrence of carrier adhesion, and can maintain a high quality of images produced for a long period of time, and comprises the magnetic carrier for an electrophotographic developer and a toner.

    R-T-B-BASED RARE EARTH MAGNET PARTICLES, PROCESS FOR PRODUCING THE R-T-B-BASED RARE EARTH MAGNET PARTICLES, AND BONDED MAGNET
    86.
    发明申请
    R-T-B-BASED RARE EARTH MAGNET PARTICLES, PROCESS FOR PRODUCING THE R-T-B-BASED RARE EARTH MAGNET PARTICLES, AND BONDED MAGNET 审中-公开
    基于R-T-B的稀土磁体颗粒,用于生产基于R-T-B的稀土磁体颗粒和粘结磁体的方法

    公开(公告)号:US20140326363A1

    公开(公告)日:2014-11-06

    申请号:US14342930

    申请日:2012-08-30

    Abstract: The present invention provides R-T-B-based rare earth magnet particles comprising no expensive rare resources such as Dy and having an excellent coercive force which can be produced by HDDR treatment without any additional steps. The present invention relates to R-T-B-based rare earth magnet particles comprising crystal grains comprising a magnetic phase of R2T14B, and a grain boundary phase, in which the grain boundary phase has a composition comprising R in an amount of not less than 13.5 atom % and not more than 35.0 atom % and Al in an amount of not less than 1.0 atom % and not more than 7.0 atom %. The R-T-B-based rare earth magnet particles can be obtained by controlling heat treatment conditions in the DR step of the HDDR treatment in the course of subjecting a raw material alloy to the HDDR treatment.

    Abstract translation: 本发明提供了不含昂贵稀有资源如Dy的R-T-B系稀土磁体颗粒,具有优异的矫顽力,可通过HDDR处理而无需任何附加步骤。 本发明涉及包含R2T14B的磁性相的晶粒和晶界相的RTB系稀土类磁铁粒子,其中,晶界相的组成为不低于13.5原子%的R, 不大于35.0原子%,Al为1.0原子%以上7.0原子%以下的Al。 通过控制HDDR处理的DR步骤中的原料合金进行HDDR处理的过程中的热处理条件,可以得到R-T-B系稀土类磁体粒子。

    SPHERICAL CARBON MATERIAL AND PROCESS FOR PRODUCING THE SPHERICAL CARBON MATERIAL
    87.
    发明申请
    SPHERICAL CARBON MATERIAL AND PROCESS FOR PRODUCING THE SPHERICAL CARBON MATERIAL 审中-公开
    球形碳材料和生产球形材料的方法

    公开(公告)号:US20140248493A1

    公开(公告)日:2014-09-04

    申请号:US14349515

    申请日:2012-10-02

    Abstract: The present invention provides a spherical carbon material in the form of isotropic particles which undergoes a considerably less change in shape even after subjected to carbonization or graphitization, and has a good crystal growth property. The present invention relates to a raw coke spherical carbon material in which an average of a plane-direction sphericity and an elevation-direction sphericity of particles of the spherical carbon material as measured in plane and elevation directions of particles of the spherical carbon material, respectively, by observation using a scanning electron microscope is not less than 60%, and a shape retention rate of the spherical carbon material after being heated at 1200° C. for 5 hr and then at 2800° C. for 3 hr is not less than 70%; a process for producing the above raw coke spherical carbon material, comprising the step of applying a compression shear stress to raw coke particles comprising particles having a particle diameter that is not more than 1/3 of an average particle diameter (D50) thereof in an amount of not less than 5% to subject the raw coke particles to dry granulation sphericalization treatment; a carbonaceous spherical carbon material obtained by carbonizing the above raw coke spherical carbon material and a process for producing the carbonaceous spherical carbon material; and a graphite spherical carbon material obtained by graphitizing the above raw coke spherical carbon material and a process for producing the graphite spherical carbon material.

    Abstract translation: 本发明提供一种各向同性粒子形状的球形碳材料,其即使经过碳化或石墨化也经历了相当小的形状变化,并且具有良好的晶体生长性能。 本发明涉及一种原焦炭球形碳材料,其中分别在球形碳材料颗粒的平面和高度方向上测量球形碳材料颗粒的平面方向球形度和高度方向球形度 通过使用扫描电子显微镜的观察不低于60%,并且在1200℃下加热5小时,然后在2800℃下3小时后的球形碳材料的形状保持率不小于 70%; 一种生产上述原料焦炭球形碳材料的方法,包括将压缩剪切应力施加到原料焦炭颗粒的步骤中,所述原料焦炭颗粒包含粒径不大于其平均粒径(D50)的1/3的颗粒, 数量不少于5%,使原焦颗粒干燥造粒球化; 通过碳化上述原料焦炭球形碳材料获得的碳质球形碳材料和碳质球形碳材料的制造方法; 以及通过石墨化上述原料焦炭球形碳材料得到的石墨球形碳材料和石墨球形碳材料的制造方法。

    Soft magnetic material, powder magnetic core and method of manufacturing soft magnetic material
    88.
    发明授权
    Soft magnetic material, powder magnetic core and method of manufacturing soft magnetic material 有权
    软磁材料,粉末磁芯和软磁材料的制造方法

    公开(公告)号:US08323725B2

    公开(公告)日:2012-12-04

    申请号:US12816833

    申请日:2010-06-16

    Abstract: A soft magnetic material is a soft magnetic material including a composite magnetic particle (30) having a metal magnetic particle (10) mainly composed of Fe and an insulating coating (20) covering metal magnetic particle (10), and insulating coating (20) contains an iron phosphate compound and an aluminum phosphate compound. The atomic ratio of Fe contained in a contact surface of insulating coating (20) in contact with metal magnetic particle (10) is larger than the atomic ratio of Fe contained in the surface of insulating coating (20). The atomic ratio of Al contained in the contact surface of insulating coating (20) in contact with metal magnetic particle (10) is smaller than the atomic ratio of Al contained in the surface of insulating coating (20). Thus, iron loss can be reduced.

    Abstract translation: 软磁性材料是包括具有主要由Fe构成的金属磁性粒子(10)和覆盖金属磁性粒子(10)的绝缘涂层(20)的复合磁性体(30)和绝缘涂层(20)的软磁性材料, 含有磷酸铁化合物和磷酸铝化合物。 包含在与金属磁性颗粒(10)接触的绝缘涂层(20)的接触表面中的Fe的原子比大于绝缘涂层(20)表面中所含的Fe的原子比。 绝缘涂层(20)与金属磁性颗粒(10)接触的接触表面中所含的Al的原子比小于绝缘涂层(20)表面中的Al的原子比。 因此,可以减少铁损。

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