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    Production of alkaline earth metal ferrites
    21.
    发明申请
    Production of alkaline earth metal ferrites 审中-公开
    生产碱土金属铁氧体

    公开(公告)号：US20030124052A1

    公开(公告)日：2003-07-03

    申请号：US10035382

    申请日：2001-12-28

    发明人： Lloyd Ballard Mauldin ,  Jerry Allen Cook

    IPC分类号： C01G049/02

    CPC分类号： C01G49/0036

    摘要： A method is disclosed for the manufacture of barium or strontium ferrite from a chloride solution containing barium or strontium ions and ferrous ions by a pyrohydrolysis reaction catalyzed by carbon dioxide. The presence of carbon dioxide in the heated atmosphere in which pyrohydrolysis of an admixture of alkaline earth metal chloride and iron chloride is carried out substantially decreases the temperature required for reaction to occur.

    摘要翻译： 公开了通过二氧化碳催化的热解反应从含有钡或锶离子和亚铁离子的氯化物溶液制造钡或锶铁氧体的方法。 进行碱土金属氯化物和氯化铁混合物的热水解的加热气氛中二氧化碳的存在大大降低了反应发生所需的温度。

    Spindle-shaped hematite particles and process for making spindle-shaped hematite particles
    24.
    发明申请
    Spindle-shaped hematite particles and process for making spindle-shaped hematite particles 失效
    锭状赤铁矿颗粒和制造纺锤形赤铁矿颗粒的方法

    公开(公告)号：US20020033118A1

    公开(公告)日：2002-03-21

    申请号：US09920796

    申请日：2001-08-03

    申请人： Toda Kogyo Corporation

    发明人： Kenji Okinaka ,  Masaaki Maekawa

    IPC分类号： C01G049/02 ,  C09C001/22

    CPC分类号： B82Y30/00 ,  C01G49/06 ,  C01P2002/52 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/10 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  G11B5/70621

    摘要： Spindle-shaped goethite particles of the present invention contain Co of 8 to 45 atm %, calculated as Co, based on whole Fe, Al of 5 to 20 atm %, calculated as Al, based on whole Fe, and have an average major axial diameter of 0.05 to 0.18 nullm, each of said spindle-shaped goethite particles comprising a seed portion and a surface layer portion, the weight ratio of said seed portion to said surface layer portion being 30:70 to 80:20 and the relationship of the Co concentration of the seed portion with that of the hematite particle being 50 to 95:100 when the Co concentration of the hematite particle is 100, and said Al existing in said surface layer portion. Such spindle-shaped goethite particles are fine particles and exhibit a good particle size distribution. Spindle-shaped hematite particles obtained form the spindle-shaped goethite particles, can be prevented as highly as possible from causing destruction of particle shape when subjected to a heat-reduction step for producing magnetic spindle-shaped metal particles and magnetic spindle-shaped metal particles containing iron as a main component produced from the spindle-shaped goethite particles or the spindle-shaped hematite particles as a starting material, exhibit a high coercive force, an excellent particle coercive force distribution, a large saturation magnetization and an excellent oxidation stability, and are excellent in a squareness (Br/Bm) of the sheet due to a good dispersibility in a binder resin.

    摘要翻译： 本发明的主轴形针铁矿颗粒含有Co为8〜45atm％，以Co为基准，以Fe为基准，以Fe为基准计，Al为5〜20atm％，以Fe为基准计算，平均主轴 每个所述纺锤状针铁矿颗粒包含种子部分和表面层部分，所述种子部分与所述表面层部分的重量比为30:70至80:20，并且 当赤铁矿颗粒的Co浓度为100时，种子部分与赤铁矿颗粒的Co浓度为50至95：100，并且所述Al存在于所述表面层部分中。 这种纺锤状针铁矿颗粒是细颗粒并且表现出良好的粒度分布。 获得的纺锤状赤铁矿颗粒可以在锭子形状的针铁矿颗粒的形成时，尽可能地防止在进行用于制造磁性心轴状金属颗粒和磁性心轴状金属颗粒的热还原步骤时造成颗粒形状破坏 作为主要成分的铁作为主要成分，由锭状的针铁矿粒子或纺锤状赤铁矿粒子作为起始原料，具有高的矫顽力，优异的矫顽力分布，大的饱和磁化强度和优异的氧化稳定性，以及 由于在粘合剂树脂中具有良好的分散性，所以片材的矩形度（Br / Bm）优异。

    Novel porous sulpha sponge iron compound, a process for preparing the same and a method for desulphurizing natural gas therewith
    25.
    发明申请
    Novel porous sulpha sponge iron compound, a process for preparing the same and a method for desulphurizing natural gas therewith 失效
    新型多孔硅海绵铁化合物，其制备方法和天然气脱硫方法

    公开(公告)号：US20040146584A1

    公开(公告)日：2004-07-29

    申请号：US10479715

    申请日：2003-12-05

    发明人： Nadathur Venkata Ragahavan Therani

    IPC分类号： C01G049/02 ,  A61K033/26

    CPC分类号： C10L3/102 ,  B01J20/0229 ,  B01J20/041 ,  B01J20/06 ,  B01J20/08 ,  C01B17/0408 ,  C10L3/10

    摘要： This invention relates to a novel porous, sulpha sponge iron compound derived from haematite having the following composition given below: and having trace elements such as Au, Pt and Ag therein,by dissolving said haematite in concentrated hydrochloric acid. The acidic solution is treated with alcoholic ammonia and glacial acetic acid. The sulpha sponge iron compound has Fe2/Fe3 cores forming interstatially stabilized clusters. The invention also includes a process for desulphurising natural gas by adsorbing sulphur containing contaminants in the novel sulpha sponge iron compound either at the drilling site or on a bed containing the same.

    摘要翻译： 本发明涉及由以下组成的由赤铁矿衍生的新型多孔，sulpha海绵铁化合物：其中含有Au，Pt和Ag等微量元素，通过将所述赤铁矿溶解在浓盐酸中。 酸性溶液用醇氨和冰醋酸处理。 sulpha海绵铁化合物具有形成间质稳定簇的Fe 2 / Fe 3核。 本发明还包括一种通过在钻井现场或含有它们的床上吸附新颖的海绵铁化合物中的含硫污染物来脱硫天然气的方法。

    Shape anisotropic metal oxide nanoparticles and synthetic method thereof
    26.
    发明申请
    Shape anisotropic metal oxide nanoparticles and synthetic method thereof 失效
    形状各向异性金属氧化物纳米粒子及其合成方法

    公开(公告)号：US20040115124A1

    公开(公告)日：2004-06-17

    申请号：US10678047

    申请日：2003-10-01

    申请人： Korea Institute of Science and Technology

    发明人： Kyoung-Ja Woo ,  Jae-Pyoung Ahn ,  Hae-Weon Lee

    IPC分类号： C01G049/02

    CPC分类号： B82Y30/00 ,  C01G49/06 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/42 ,  Y10S977/773 ,  Y10S977/775 ,  Y10S977/777 ,  Y10S977/811

    摘要： In a metal oxide nanoparticle and a synthetic method thereof, and in particular to maghemite (null-Fe2O3) nanoparticles usable as a superhigh density magnetic recording substance by having good shape anisotropy and magnetic characteristics, hematite (null-Fe2O3) nanoparticles usable as a precursor to the maghemite or a catalyst, maghemite and hematite-mixed nanoparticles and a synthetic method thereof, the method for synthesizing metal oxide nanoparticles includes forming a reverse micelle solution by adding distilled water, a surfactant and a solvent to metallic salt not less than trivalent, precipitating and separating gel type amorphous metal oxide particles by adding proton scavenger to the reverse micelle solution; adjusting a molar ratio of metal oxide to the surfactant by washing the gel type amorphous metal oxide particles with a polar solvent; and crystallizing metal oxide nanoparticles through heating or reflux after dispersing the gel type amorphous metal oxide particles in a non-polar solvent having a high boiling point.

    摘要翻译： 在金属氧化物纳米粒子及其合成方法中，特别是可用作超高密度磁记录物质的磁赤铁矿（γ-Fe 2 O 3）纳米颗粒具有良好的形状各向异性和磁特性，可用作前体的赤铁矿（α-Fe 2 O 3） 对于磁赤铁矿或催化剂，磁赤铁矿和赤铁矿混合纳米粒子及其合成方法，合成金属氧化物纳米粒子的方法包括通过向不少于三价的金属盐加入蒸馏水，表面活性剂和溶剂形成反胶束溶液， 通过向反胶束溶液中加入质子清除剂沉淀和分离凝胶型无定形金属氧化物颗粒; 通过用极性溶剂洗涤凝胶型无定形金属氧化物颗粒来调节金属氧化物与表面活性剂的摩尔比; 以及在将凝胶型无定形金属氧化物颗粒分散在具有高沸点的非极性溶剂中之后通过加热或回流结晶金属氧化物纳米颗粒。

    Method for preparing hydrous iron oxide gels and spherules
    28.
    发明申请
    Method for preparing hydrous iron oxide gels and spherules 失效

    公开(公告)号：US20030021747A1

    公开(公告)日：2003-01-30

    申请号：US09917117

    申请日：2001-07-27

    发明人： Jack L. Collins ,  Robert J. Lauf ,  Kimberly K. Anderson

    IPC分类号： C01G049/02

    CPC分类号： C01G49/02 ,  C01G49/0036 ,  C01P2004/32 ,  C01P2004/62

    摘要： The present invention is directed to methods for preparing hydrous iron oxide spherules, hydrous iron oxide gels such as gel slabs, films, capillary and electrophoresis gels, iron monohydrogen phosphate spherules, hydrous iron oxide spherules having suspendable particles homogeneously embedded within to form composite sorbents and catalysts, iron monohydrogen phosphate spherules having suspendable particles of at least one different sorbent homogeneously embedded within to form a composite sorbent, iron oxide spherules having suspendable particles homogeneously embedded within to form a composite of hydrous iron oxide fiber materials, iron oxide fiber materials, hydrous iron oxide fiber materials having suspendable particles homogeneously embedded within to form a composite, iron oxide fiber materials having suspendable particles homogeneously embedded within to form a composite, dielectric spherules of barium, strontium, and lead ferrites and mixtures thereof, and composite catalytic spherules of barium or strontium ferrite embedded with oxides of Mg, Zn, Pb, Ce and mixtures thereof. These variations of hydrous iron oxide spherules and gel forms prepared by the gel-sphere, internal gelation process offer more useful forms of inorganic ion exchangers, catalysts, getters, dielectrics, and ceramics.

    Electrochemical storage device and method for producing the same
    29.
    发明申请
    Electrochemical storage device and method for producing the same 审中-公开
    电化学储存装置及其制造方法

    公开(公告)号：US20020182503A1

    公开(公告)日：2002-12-05

    申请号：US10112548

    申请日：2002-03-28

    申请人： Matsushita Electric Industrial Co., Ltd.

    发明人： Takuma Asari ,  Susumu Nomoto ,  Mikinari Shimada ,  Kazuyuki Okano

    IPC分类号： H01M004/48 ,  H01M004/58 ,  H01M004/52 ,  C01G001/02 ,  C01G039/02 ,  C01G049/02 ,  C01G053/02 ,  C01D001/02 ,  C01D001/04 ,  C01G055/00 ,  C01G051/04 ,  C01G045/02 ,  C01G031/02 ,  H01M004/62 ,  H01M004/50

    CPC分类号： H01G9/155 ,  C01P2002/72 ,  C01P2002/88 ,  C09C1/56 ,  Y02E60/13

    摘要： An electrochemical storage device includes a pair of electrodes, a separator present between the pair of electrodes, and an electrolyte solution with which the electrodes and the separator are impregnated. The electrodes are obtained by allowing at least one selected from a transition metal nitrate compound and a solution of the transition metal nitrate compound to be adsorbed on a carbon-based material and performing an additional treatment so that at least one of a transition metal oxide and a transition metal hydroxide is supported on the carbon-based material. Thus, an electrode material containing a reduced amount of halogenated ions mixed on which a transition metal oxide or a transition metal hydroxide is supported efficiently can be produced, and an electrochemical storage device having a high capacitance and a long life and a method for producing the same can be provided.

    摘要翻译： 一种电化学存储装置，包括一对电极，一对电极之间存在的隔膜和浸渍电极和隔膜的电解质溶液。 电极是通过使选自过渡金属硝酸盐化合物和过渡金属硝酸盐化合物的溶液中的至少一种吸附在碳类材料上并进行附加处理而获得的，使得过渡金属氧化物和 过渡金属氢氧化物负载在碳基材料上。 因此，能够有效地提供含有过渡金属氧化物或过渡金属氢氧化物混合的卤化离子量减少的电极材料，具有高电容性和长寿命的电化学储存装置及其制造方法 同样可以提供。