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    Particle synthesis by means of the thermohydrolysis of mineral precursors
    51.
    发明授权
    Particle synthesis by means of the thermohydrolysis of mineral precursors 有权
    通过矿物前体的热水解使颗粒合成

    公开(公告)号：US08986648B2

    公开(公告)日：2015-03-24

    申请号：US13384703

    申请日：2010-07-20

    Applicant: Daniel Aymes ,  Moustapha Ariane ,  Frédéric Bernard ,  Hervé Muhr ,  Frédéric Demoisson

    Inventor： Daniel Aymes ,  Moustapha Ariane ,  Frédéric Bernard ,  Hervé Muhr ,  Frédéric Demoisson

    IPC: C01B13/00 ,  B01J2/02 ,  B01J2/06 ,  B82Y30/00 ,  C01B13/36 ,  C01G9/02 ,  C01G23/047 ,  C01G25/02 ,  C01G49/02

    CPC classification number: B01J2/02 ,  B01J2/06 ,  B01J2219/00123 ,  B82Y30/00 ,  C01B13/36 ,  C01G9/02 ,  C01G23/047 ,  C01G25/02 ,  C01G49/02 ,  C01P2004/64

    Abstract: The present invention relates to a method for continuously preparing mineral particles by means of the thermolysis of mineral precursors in an aqueous medium, comprising contacting: a reactive flow, including mineral precursors at a temperature lower than the conversion temperature thereof; and a heat transfer flow that is countercurrent to said reactive flow and contains water at a temperature that is sufficient to bring the precursors to a temperature higher than the conversion temperature thereof, the mixture flow that results from said reactive flow and said heat transfer flow then being conveyed into a tubular reactor, inside of which particles are formed by gradually converting the precursors, and where the reactive flow and the heat transfer flow are placed in contact with each other inside a mixing chamber, inside of which the reactive flow and the heat transfer flow are fed by supply pipes having outlet cross-sections that are smaller than the maximum cross-section of said mixing chamber. The invention also relates to a device for implementing said method.

    Abstract translation: 本发明涉及一种通过在水性介质中热分解矿物前体而连续制备矿物颗粒的方法，包括在低于其转化温度的温度下接触包括矿物前体的反应性流; 以及与所述反应性流逆流并且在足以使前体达到高于其转化温度的温度的温度下的水的传热流，由所述反应流和所述传热流产生的混合物流 被输送到管式反应器中，其中通过逐渐转化前体形成颗粒，并且其中反应流和传热流在混合室内相互接触地形成，其中反应流和热量 输送流由具有小于所述混合室的最大横截面的出口横截面的供给管供给。 本发明还涉及一种用于实现所述方法的装置。

    METHOD OF MANUFACTURING HEXAGONAL FERRITE MAGNETIC PARTICLES
    52.
    发明申请
    METHOD OF MANUFACTURING HEXAGONAL FERRITE MAGNETIC PARTICLES 有权
    制造六角形铁素体磁性颗粒的方法

    公开(公告)号：US20150010466A1

    公开(公告)日：2015-01-08

    申请号：US14324857

    申请日：2014-07-07

    Applicant: FUJIFILM Corporation

    Inventor： Yasushi HATTORI ,  Yoshinori TAMADA

    IPC: C01G49/02 ,  H01F1/01

    CPC classification number: H01F1/01 ,  C01G49/0036 ,  C01P2004/64 ,  C01P2006/42 ,  H01F1/348 ,  H01F1/36

    Abstract: The method of manufacturing hexagonal ferrite magnetic particles comprises applying, in a water-based solution, an adhering matter comprising a glass component and an alkaline earth metal to iron oxide particles to which a surfactant adheres, and calcining the iron oxide particles to which the adhering matter adheres to obtain a calcined product in which a main component that is detected by X-ray diffraction analysis is hexagonal ferrite.

    Abstract translation: 制造六方晶系铁氧体磁性颗粒的方法包括在水性溶液中将包含玻璃组分和碱土金属的粘附物施加到表面活性剂附着的氧化铁颗粒上，并煅烧氧化铁颗粒， 物质粘附以获得其中通过X射线衍射分析检测的主要成分是六方铁素体的煅烧产物。

    Catalytic CO2 Desorption on the Interface between NaHCO3 and Multifunctional Nanoporous TiO(OH)2
    58.
    发明申请
    Catalytic CO2 Desorption on the Interface between NaHCO3 and Multifunctional Nanoporous TiO(OH)2 有权
    在NaHCO 3和多功能纳米多孔TiO（OH）2界面上的催化二氧化碳解吸

    公开(公告)号：US20130004394A1

    公开(公告)日：2013-01-03

    申请号：US13469895

    申请日：2012-05-11

    Applicant: Maohong Fan

    Inventor： Maohong Fan

    IPC: C01B13/00 ,  C01F7/02 ,  B01J27/232 ,  C01G23/04 ,  B01J21/02 ,  B01D53/62 ,  B01J21/06 ,  B01J23/10 ,  B01J23/745 ,  C01G49/02 ,  C01F17/00

    CPC classification number: C01G23/04 ,  B01D53/62 ,  B01D53/96 ,  B01D2251/304 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/20738 ,  B01D2255/2092 ,  B01D2257/504 ,  B01J20/043 ,  B01J20/06 ,  B01J20/28057 ,  B01J20/28071 ,  B01J20/28083 ,  B01J20/3078 ,  B01J20/3085 ,  B01J20/3204 ,  B01J20/3236 ,  B01J21/063 ,  B01J27/232 ,  B01J2220/42 ,  C01P2002/72 ,  C01P2002/82 ,  C01P2002/88 ,  C01P2004/03 ,  Y02C10/04 ,  Y02C10/08 ,  Y02P20/152

    Abstract: CO2 capture from flue gas is a costly procedure, usually due to the energy required for regeneration of the capture medium. One potential medium which could reduce such an energy consumption, however, is Na2CO3. It has been well studied as a sorbent, and it is understood that the theoretical energy penalty of use of Na2CO3 for CO2 separation is low, due to the relatively low heat of reaction and low heat capacity of the material. While it offers some advantages over other methods, its primary downfall is the slow reaction with CO2 during adsorption and the slow Na2CO3 regeneration process. In an effort to reduce the energy penalty of post-combustion CO2 capture, the catalytic decomposition of NaHCO3 is studied. Nanoporous TiO(OH)2 is examined as a potential catalytic support for a cyclic Na2CO3/NaHCO3 based CO2 capture process. FT-IR, SEM, and XRD characterization of NaHCO3 supported on nanoporous TiO(OH)2 treated with different processes indicate that TiO(OH)2 is stable within the temperature range necessary for such a process, up to about 200° C. More importantly, the TiO(OH)2 has a catalytic effect on the decomposition of NaHCO3, reducing the activation energy from about 75 kJ/mol to 36 kJ/mol. This significant drop in activation energy could translate into a much lower operating cost for regenerating Na2CO3. The reaction rate of NaHCO3 decomposition, or CO2 desorption, is observed to increase by as much as a factor of ten due to this decrease in activation energy.

    Abstract translation: 烟道气中的二氧化碳捕获是一个昂贵的过程，通常是由于捕获介质再生所需的能量。 然而，可以减少这种能量消耗的一种潜在介质是Na 2 CO 3。 作为吸附剂已经被很好地研究，并且可以理解，由于反应热较少并且材料的热容量低，使用Na 2 CO 3进行CO 2分离的理论能量损失较低。 虽然它比其他方法提供了一些优势，但它的主要垮台是吸附过程中CO2的缓慢反应和缓慢的Na2CO3再生过程。 为了减少燃烧后CO2捕获的能量损失，研究了NaHCO 3的催化分解。 检测纳米多孔TiO（OH）2作为基于CO 2捕获过程的环状Na 2 CO 3 / NaHCO 3的潜在催化载体。 用不同方法处理的纳米多孔TiO（OH）2负载的NaHCO3的FT-IR，SEM和XRD表征表明，TiO（OH）2在这种方法所需的温度范围内是稳定的，高达约200℃。 重要的是，TiO（OH）2对NaHCO 3的分解具有催化作用，将活化能从约75kJ / mol降低至36kJ / mol。 活化能的这种显着下降可以转化成用于再生Na 2 CO 3的低得多的操作成本。 由于活化能的降低，观察到NaHCO3分解或CO 2脱附的反应速率增加了10倍。

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