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    METHOD FOR ALUMINA PRODUCTION
    3.
    发明申请
    METHOD FOR ALUMINA PRODUCTION 审中-公开
    三氯氧化铝计算方法

    公开(公告)号：WO2008052249A1

    公开(公告)日：2008-05-08

    申请号：PCT/AU2007/001617

    申请日：2007-10-24

    Applicant: ALCOA OF AUSTRALIA LIMITED ,  MILLS, Gregory

    Inventor： MILLS, Gregory

    IPC: C01F7/44 ,  C01F7/30 ,  C01F7/02 ,  C01F7/46

    CPC classification number: C01F7/448 ,  C01F7/441

    Abstract: A method for the calcination of aluminium trihydroxide, the method comprising the steps of: directly contacting the aluminium trihydroxide with steam; and calcining at least a portion of the aluminium trihydroxide to alumina and/or aluminium oxyhydroxide.

    Abstract translation: 一种煅烧氢氧化铝的方法，所述方法包括以下步骤：将三氢氧化铝与蒸汽直接接触; 并将至少一部分三氢氧化铝煅烧成氧化铝和/或羟基氧化铝。

    PROCESS FOR THE PREPARATION OF QUASI-CRYSTALLINE BOEHMITES FROM INEXPENSIVE PRECURSORS
    5.
    发明申请
    PROCESS FOR THE PREPARATION OF QUASI-CRYSTALLINE BOEHMITES FROM INEXPENSIVE PRECURSORS 审中-公开
    从独立前驱体制备准晶体银沸石的方法

    公开(公告)号：WO01012553A1

    公开(公告)日：2001-02-22

    申请号：PCT/EP2000/007790

    申请日：2000-08-11

    IPC: B01J21/04 ,  B01J23/10 ,  B01J37/10 ,  C01F7/34 ,  C01F7/44

    CPC classification number: C01F7/448 ,  B01J21/04 ,  B01J23/10 ,  B01J37/10 ,  C01F7/34 ,  C01P2002/04 ,  C01P2002/74

    Abstract: The present invention pertains to cheaper process for the preparation of quasi-crystalline boehmite containing additive in a homogeneously dispersed state. In this cheaper process an inexpensive quasi-crystalline boehmite precursor and an additive are combined and aged to form a quasi-crystalline boehmite containing additive in a homogeneously dispersed state. Suitable inexpensive quasi-crystalline boehmite precursors are aluminium trihydrate and thermally treated forms thereof and inorganic aluminium salts. Suitable additives are compounds containing elements selected from the group of rare earth metals, alkaline earth metals, transition metals, actinides, silicon, gallium, boron, and phosphorus.

    Abstract translation: 本发明涉及制备具有均匀分散状态的含准结晶勃姆石的添加剂的较便宜的方法。 在这种更便宜的方法中，将廉价的准晶体勃姆石前体和添加剂组合并老化以形成均匀分散状态的含有添加剂的准晶体勃姆石。 合适的廉价准晶体勃姆石前体是三水合铝和其热处理形式和无机铝盐。 合适的添加剂是含有选自稀土金属，碱土金属，过渡金属，锕系元素，硅，镓，硼和磷的元素的化合物。

    ALUMINA TRIHYDRATE DERIVED HIGH PORE VOLUME, HIGH SURFACE AREA ALUMINUM OXIDE COMPOSITES AND METHODS OF THEIR PREPARATION AND USE
    8.
    发明申请
    ALUMINA TRIHYDRATE DERIVED HIGH PORE VOLUME, HIGH SURFACE AREA ALUMINUM OXIDE COMPOSITES AND METHODS OF THEIR PREPARATION AND USE 审中-公开
    氧化铝三水合物衍生的高孔体积，高表面积的氧化铝氧化物复合材料及其制备和使用方法

    公开(公告)号：WO01045838A1

    公开(公告)日：2001-06-28

    申请号：PCT/US2000/034073

    申请日：2000-12-18

    IPC: B01J21/04 ,  B01J21/12 ,  B01J32/00 ,  B01J35/10 ,  B01J37/04 ,  C01F7/02 ,  C01F7/44 ,  C10G45/04

    CPC classification number: C01F7/02 ,  B01J21/04 ,  B01J21/12 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/108 ,  C01F7/448 ,  C01P2002/60 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16

    Abstract: Porous composite particles are provided which comprise an aluminum oxide component, e.g., crystalline boehmite having a crystallite size of from about 20 to about 200 Angstroms and additive component residue, e.g., silicate, phosphate, of a crystal size growth inhibitor, intimately dispersed within the aluminum oxide component. The aluminum oxide component of the composite particles are derived from a mixture of alumina trihydrate (e.g., gibbsite) and an alumina seed component, i.e., active alumina, which are both converted to crystalline boehmite in the presence of the additive component. Also provided is a method for making the composite particles, agglomerate particles derived therefrom, and a process for hydroprocessing petroleum feedstock using the agglomerates.

    Abstract translation: 提供多孔复合颗粒，其包含氧化铝组分，例如具有约20至约200埃的微晶尺寸的结晶勃姆石和添加剂组分残余物，例如晶体尺寸生长抑制剂的硅酸盐，磷酸盐，紧密分散在 氧化铝组分。 复合颗粒的氧化铝组分衍生自三水合氧化铝（例如三水铝矿）和氧化铝种子组分（即活性氧化铝）的混合物，其在添加剂组分存在下都转化为结晶勃姆石。 还提供了制备复合颗粒的方法，由其衍生的附聚颗粒以及使用附聚物加氢处理石油原料的方法。

    PROCESS FOR THE PREPARATION OF QUASI-CRYSTALLINE BOEHMITES
    9.
    发明申请
    PROCESS FOR THE PREPARATION OF QUASI-CRYSTALLINE BOEHMITES 审中-公开
    制备晶体沸石的方法

    公开(公告)号：WO01012554A1

    公开(公告)日：2001-02-22

    申请号：PCT/EP2000/007792

    申请日：2000-08-11

    IPC: B01J21/04 ,  C01F7/34 ,  C01F7/36 ,  C01F7/44

    CPC classification number: C01F7/448 ,  B01J21/04 ,  C01F7/34 ,  C01F7/36 ,  C01P2002/04 ,  C01P2002/72

    Abstract: The present invention pertains to an improved process for the preparation of quasi-crystalline boehmite. In this improved process a quasi-crystalline boehmite precursor is aged at a pH below 7, preferably under hydrothermal conditions. It was found that when conducting the preparation processes for quasi-crystalline aluminas described in the prior art at a pH below 7 and under hydrothermal conditions instead of the high pH and thermal ageing used in the prior art, QCBs with higher crystallinity are obtained. In the process according to the invention additives may be added to the quasi-crystalline boehmite precursor. This results in a high quality QCB with additives in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group of rare earth metals, alkaline earth metals, transition metals, actinides, silicon, gallium, boron, and phosphorus.

    Abstract translation: 本发明涉及制备准晶状勃姆石的改进方法。 在这种改进的方法中，准晶体勃姆石前体在pH低于7的条件下老化，优选在水热条件下。 已经发现，在现有技术中描述的准晶体氧化铝的制备方法在pH低于7且在水热条件下代替现有技术中使用的高pH和热老化，获得具有较高结晶度的QCB。 在根据本发明的方法中，可将添加剂加入到准结晶勃姆石前体中。 这导致具有均匀分散状态的添加剂的高质量QCB。 合适的添加剂是含有选自稀土金属，碱土金属，过渡金属，锕系元素，硅，镓，硼和磷的元素的化合物。

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