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    High density agglomerated boron nitride particles
    41.
    发明授权
    High density agglomerated boron nitride particles 失效
    高密度聚集氮化硼颗粒

    公开(公告)号：US5898009A

    公开(公告)日：1999-04-27

    申请号：US968959

    申请日：1997-11-12

    Applicant: Gregory W. Shaffer ,  Richard Frank Hill

    Inventor： Gregory W. Shaffer ,  Richard Frank Hill

    IPC: C04B35/5831 ,  C08K3/38 ,  C04B35/5833

    CPC classification number: C08K3/38 ,  C01B21/064 ,  C01B21/0648 ,  C04B35/5831 ,  C01P2004/45 ,  C01P2004/50 ,  C01P2006/10 ,  C01P2006/12

    Abstract: A method of forming pellets or agglomerates of high density boron nitride from high purity hexagonal boron nitride by crushing the high purity hexagonal boron nitride into boron nitride particles extending over a size range of at least 100 microns with the majority of the particles having a particle size above 50 microns and cold pressing the crushed particles into a compacted form. The compacted form is then granulated into a granulated powder and again cold pressed to form pellets or agglomerates of boron nitride particles with the operations of cold pressing and granulation occurring in one or more stages.

    Abstract translation: 通过将高纯度六方氮化硼粉碎至在至少100微米的尺寸范围内延伸的氮化硼颗粒，从高纯度六方氮化硼形成高密度氮化硼的颗粒或附聚物的方法，其中大部分颗粒具有粒径 高于50微米，并将压碎的颗粒冷压成压实形式。 然后将压制形式造粒成造粒粉末，并再次冷压以形成氮化硼颗粒的颗粒或附聚物，其中冷压和造粒的操作在一个或多个阶段中发生。

    Process for producing calcium carbonate and products thereof
    45.
    发明授权
    Process for producing calcium carbonate and products thereof 失效
    碳酸钙的制造方法及其制造方法

    公开(公告)号：US4888160A

    公开(公告)日：1989-12-19

    申请号：US47318

    申请日：1987-05-08

    Applicant: John A. Kosin ,  Claude R. Andrews

    Inventor： John A. Kosin ,  Claude R. Andrews

    IPC: C01F11/18

    CPC classification number: C01F11/182 ,  C01F11/181 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/38 ,  C01P2004/39 ,  C01P2004/45 ,  C01P2004/61 ,  C01P2004/62 ,  Y10T428/24479

    Abstract: A process for producing calcium carbonate from calcium hydroxide derived from, for example, limestone, comprises injecting a gas containing carbon dioxide into a recirculating stream flowing in a recycle piping system in communication with a reaction vessel. The carbon dioxide containing gas is injected at a turbulent area located in the recycle piping system. By controlling reaction parameters including pH and temperature, novel calcium carbonate products are formed by the process.

    Abstract translation: 从由例如石灰石衍生的氢氧化钙制备碳酸钙的方法包括将含有二氧化碳的气体注入到与反应容器连通的循环管道系统中流动的再循环流中。 含二氧化碳的气体被注入位于再循环管道系统中的湍流区域。 通过控制包括pH和温度的反应参数，通过该方法形成新的碳酸钙产物。

    Positive Electrode Active Material and Method of Preparing the Same
    48.
    发明公开
    Positive Electrode Active Material and Method of Preparing the Same 审中-公开

    公开(公告)号：US20240109789A1

    公开(公告)日：2024-04-04

    申请号：US18266839

    申请日：2022-02-03

    Applicant: LG Chem, Ltd.

    Inventor： Ji Hun Jung ,  Hyun Ah Park ,  Eung Ju Lee ,  Min Hee Son

    IPC: C01G53/00 ,  H01M10/052

    CPC classification number: C01G53/50 ,  H01M10/052 ,  C01P2004/03 ,  C01P2004/45 ,  C01P2006/40 ,  C01P2006/90

    Abstract: A positive electrode active material, a method of preparing the same, and a positive electrode and lithium secondary battery including the same are disclosed herein. In some embodiments, a positive electrode active material includes a lithium transition metal oxide which contains 60 mol % or more of nickel based on a total number of moles of transition metals excluding lithium in the lithium transition metal oxide, wherein the oxide is in a form of a secondary particle which is an aggregate of primary particles, wherein the lithium transition metal oxide satisfies Equation 1:




    1
    ≤

    x
    y

    ≤
    20




    Wherein x is a minimum area of a rectangle including all pores having an area greater than 0.002 μm2 among closed pores distributed in the secondary particle, and y is a total sum of areas of the pores having an area greater than 0.002 μm2 among the closed pores distributed in the secondary particle.

    PROCESS FOR PREPARING ZEOLITE MATERIAL HAVING AN AFX FRAMEWORK STRUCTURE AND ZEOLITE MATERIAL AS PREPARED
    50.
    发明公开
    PROCESS FOR PREPARING ZEOLITE MATERIAL HAVING AN AFX FRAMEWORK STRUCTURE AND ZEOLITE MATERIAL AS PREPARED 审中-公开

    公开(公告)号：US20230312357A1

    公开(公告)日：2023-10-05

    申请号：US18044607

    申请日：2021-09-10

    Applicant: BASF CORPORATION

    Inventor： Ming Ming WEI ,  Shi LIHUA ,  Vivek VATTIPALLI ,  Li MENGLU ,  Liu HAITAO ,  Li JIN

    IPC: C01B39/48 ,  B01D53/94

    CPC classification number: C01B39/48 ,  B01D53/9418 ,  B01D2257/40 ,  B01D2255/50 ,  C01P2004/32 ,  C01P2004/45

    Abstract: Disclosed herein is a process for preparing a zeolite material having an AFX framework structure including X2O3 and YO2 via interzeolite conversion, the process including (1) providing a mixture including a first zeolite material having a non-FAU framework structure including X2O3 and YO2 and an organic structure directing agent selected from the group consisting of diquaternary ammonium cation containing compounds, and (2) heating the mixture from (1) to form a second zeolite material having an AFX framework structure including X2O3 and YO2, wherein X is a trivalent element and Y is a tetravalent element, and where the organic structure directing agent is not 1,4-bis(1,4-diazabicyclo[2.2.2]octane)butyl dihydroxide when the first material zeolite has a CHA framework structure. Further disclosed herein is the zeolite material having an AFX framework structure as obtainable or obtained from the process, and a method of using the same as a catalytically active material.

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