Spindle-shaped goethite particles, spindle-shaped hematite particles, spindle-shaped magnetic metal particles containing iron as main component and processes for producing the same
    31.
    发明申请
    Spindle-shaped goethite particles, spindle-shaped hematite particles, spindle-shaped magnetic metal particles containing iron as main component and processes for producing the same 失效
    锭状的针铁矿颗粒,纺锤状赤铁矿颗粒,以铁为主要成分的梭形磁性金属颗粒及其制造方法

    公开(公告)号:US20020031666A1

    公开(公告)日:2002-03-14

    申请号:US09878311

    申请日:2001-06-12

    IPC分类号: C01G049/02

    摘要: The present invention relates to spindle-shaped goethite particles having an average major axial diameter of 0.05 to 0.18 nullm, spindle-shaped hematite particles having an average major axial diameter of 0.05 to 0.17 nullm, spindle-shaped magnetic metal particles containing iron as a main component, which exhibit an adequate coercive force, good dispersibility, good oxidation stability and excellent coercive force distribution notwithstanding the average major axial diameter thereof is as small as 0.05 to 0.15 nullm, and processes for producing the respective particles. Especially, the spindle-shaped magnetic metal particles containing iron as a main component, have an average major axial diameter of 0.05 to 0.15 nullm, an aspect ratio of from 5:1 to 9:1, a size distribution (standard deviation/average major axial diameter) of not more than 0.30, a crystallite size D110 of 130 to 160 null, a Co content of from 0.5 to less than 6 atm % based on whole Fe, an Al content of from more than 10 to less than 20 atm % based on whole Fe, a rare earth element content of from 1.5 to 5 atm % based on whole Fe, an atomic ratio of Al to Co of from more than 2 to 4, a coercive force of 111.4 to 143.2 kA/m, an oxidation stability of saturation magnetization (nullnulls) of not more than 10%, and an ignition temperature of not less than 130null C.

    摘要翻译: 本发明涉及平均主轴径为0.05〜0.18μm的纺锤状针铁矿颗粒,平均主轴径为0.05〜0.17μm的纺锤状赤铁矿颗粒,以铁为主体的梭形磁性金属颗粒 表现出足够的矫顽力,良好的分散性,良好的氧化稳定性和优异的矫顽力分布,尽管其平均主轴直径小至0.05至0.15μm,以及制备各个颗粒的方法。 特别地,以铁为主要成分的纺锤形磁性金属粒子的平均主轴径为0.05〜0.15μm,纵横比为5:1〜9:1,尺寸分布(标准偏差/平均重量 轴向直径)为0.30以下,微晶尺寸D110为130〜160,Co含量为0.5〜6atm%以上,Fe为10〜20atm%以下, 基于Fe,基于Fe的1.5〜5atm%的稀土元素含量,Al与Co的原子比大于2〜4,矫顽力为111.4〜143.2kA / m,氧化 饱和磁化强度(DELTAsigmas)的稳定度不大于10%,点火温度不低于130℃。

    SPINDLE-SHAPED GOETHITE PARTICLES AND PROCESS FOR PRODUCING THE SAME
    32.
    发明申请
    SPINDLE-SHAPED GOETHITE PARTICLES AND PROCESS FOR PRODUCING THE SAME 无效
    主要形状的粒状颗粒及其生产方法

    公开(公告)号:US20010051129A1

    公开(公告)日:2001-12-13

    申请号:US09260023

    申请日:1999-03-02

    发明人: KENJI OKINAKA

    IPC分类号: C01G049/02 C04B035/26

    摘要: Spindle-shaped goethite particles of the present invention uniformly contain cobalt of 1 to 20 atm %, calculated as Co, based on whole Fe and aluminum of 1 to 15 atm %, calculated as Al, based on whole Fe, and have an X-ray crystallite size ratio (D020:D110) of not less than 1.0:1 and less than 2.0:1, an average major axial diameter of 0.05 to 0.20 nullm, an average minor axial diameter of 0.010 to 0.020 nullm and an average aspect ratio (average major axial diameter:average minor axial diameter) of 4:1 to 10:1. Such spindle-shaped goethite particles are suitable as a starting material of spindle-shaped magnetic iron-based alloy particles which have a large saturation magnetization, an excellent oxidation stability, a high coercive force and a good dispersibility in binder resin, and which are excellent in sheet squareness (Br/Bm) due to the good dispersibility in binder resin.

    摘要翻译: 本发明的主轴状针铁矿颗粒,以Fe为基准,以Al为基准计算,以Fe计算,以Co计算,为1〜20atm%的钴,以Al计算的Fe, (D020:D110)为1.0:1以上且小于2.0:1,平均主轴径为0.05〜0.20μm,平均次轴径为0.010〜0.020μm,平均纵横比( 平均主轴径:平均小轴径)为4:1至10:1。 这种纺锤状针铁矿颗粒适合作为具有大的饱和磁化强度,优异的氧化稳定性,高矫顽力和在粘结剂树脂中良好的分散性的纺锤形磁性铁基合金颗粒的起始材料,并且它们是优异的 由于在粘合剂树脂中具有良好的分散性,在片状矩形(Br / Bm)中。

    Process for the production of iron oxide and its use
    33.
    发明申请
    Process for the production of iron oxide and its use 有权
    氧化铁生产工艺及其应用

    公开(公告)号:US20010031240A1

    公开(公告)日:2001-10-18

    申请号:US09798847

    申请日:2001-03-02

    发明人: Ulrich Meisen

    IPC分类号: C01G049/02 C04B016/00

    摘要: The present invention relates to a process for the production of an iron oxide yellow by a) adding FeSO4 or FeCl2 with an Fe(III) content of 0.0 to 4.0 mol % Fe(III) and a Mn content of up to 0.7 wt. %, based on the Fe content, to a solution or suspension of an alkaline component that has been heated to a temperature of between 42 and 75null C., and b) oxidizing the suspension formed with an oxidizing agent until all iron(II) has been converted into iron(III) as null-FeOOH, whereby the oxidizing agent is added at a rate such that the oxidation time is between 120 and 600 minutes and the reaction temperature during the entire oxidation time is at least at the temperature at which precipitation occurred.

    摘要翻译: 本发明涉及一种通过以下方法生产氧化铁黄的方法:a)加入Fe(III)含量为0.0-4.0mol%Fe(III)的FeSO 4或FeCl 2,Mn含量高达0.7wt。 基于Fe含量的碱性组分的溶液或悬浮液加热到42至75℃的温度,以及b)氧化由氧化剂形成的悬浮液,直到所有的铁(II) 已经被转化为铁(III)作为α-FeO​​OH,由此氧化剂以使得氧化时间在120和600分钟之间的速率加入,并且整个氧化时间期间的反应温度至少在 降水发生。

    Calcium-iron oxide composite particles
    34.
    发明申请
    Calcium-iron oxide composite particles 失效
    氧化铁 - 氧化铁复合颗粒

    公开(公告)号:US20010021366A1

    公开(公告)日:2001-09-13

    申请号:US09758270

    申请日:2001-01-12

    IPC分类号: C01G049/02

    摘要: Calcium-iron oxide composite particles of the present invention have a BET specific surface area of 1 to 100 m2/g and containing iron atom in an amount of 1 to 50 moles based on 100 moles of calcium atom, the iron atom of not less than 50% based on the total amount of iron atom contained in said calcium-iron oxide composite particles being bonded with calcium atom for forming a calcium-iron ferrite phase. A hydrogen chloride-scavenger comprising the calcium-iron oxide composite particles, is capable of effectively capturing harmful hydrogen chloride generated by thermal decomposition or combustion of chorine-containing resin molded products upon fire or incineration thereof, and fixing the hydrogen chloride as stable calcium chloride or the like.

    摘要翻译: 本发明的氧化铁 - 氧化铁复合粒子的BET比表面积为1〜100m 2 / g,相对于100摩尔的钙原子含有1〜50摩尔的铁原子,铁原子不小于 基于所述钙 - 铁氧化物复合颗粒中含有的铁原子的总量的50%,与用于形成铁 - 铁铁素体相的钙原子键合。 包含钙 - 铁氧化物复合颗粒的氯化氢 - 清除剂能够有效地捕获在其烧灼或焚烧时含有chorine的树脂模塑产品的热分解或燃烧产生的有害的氯化氢,并将氯化氢固定为稳定的氯化钙 或类似物。

    Cathode material for lithium rechargeable batteries
    39.
    发明申请
    Cathode material for lithium rechargeable batteries 有权
    锂可充电电池的阴极材料

    公开(公告)号:US20020192556A1

    公开(公告)日:2002-12-19

    申请号:US10073678

    申请日:2002-02-11

    摘要: A crystal which can be employed as the active material of a lithium-based battery has an empirical formula of Lix1A2Ni1nullynullzCoyBzOa, wherein nullx1null is greater than about 0.1 and equal to or less than about 1.3, nullx2,null nullynull and nullznull each is greater than about 0.0 and equal to or less than about 0.2, nullanull is greater than about 1.5 and less than about 2.1, nullAnull is at least one element selected from the group consisting of barium, magnesium, calcium and strontium and nullBnull is at least one element selected from the group consisting of boron, aluminum, gallium, manganese, titanium, vanadium and zirconium. A method includes combining lithium, nickel, cobalt and at least one element nullAnull selected from the group consisting of barium, magnesium, calcium and strontium, has at least one element nullBnull selected from the group consisting of boron, aluminum, gallium, manganese, titanium, vanadium and zirconium, in the presence of oxygen, wherein the combined components have the relative ratio of Lix1:Ax2:Ni1nullynullz:Coy:Bz, wherein nullx1,null nullx2,null nullynull and nullznull have the values given for the empirical formula shown above.

    摘要翻译: 可以用作锂基电池的活性材料的晶体具有Lix1A2Ni1-y-zCoyBzOa的经验式,其中“x1”大于约0.1且等于或小于约1.3,“x2”,“ y“和”z“各自大于约0.0且等于或小于约0.2,”a“大于约1.5且小于约2.1,”A“是选自由以下组成的组中的至少一种元素:钡 ,镁,钙和锶,“B”是选自硼,铝,镓,锰,钛,钒和锆中的至少一种元素。 一种方法包括组合锂,镍,钴和至少一种选自钡,镁,钙和锶的元素“A”,具有至少一种选自硼,铝,镓的元素“B” ,锰,钛,钒和锆,其中组合成分具有Lix1:Ax2:Ni1-yz:Coy:Bz的相对比例,其中“x1”,“x2”,“y”和“ z“具有上述经验公式给出的值。