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    Process For The Preparation Of An Additive-Containing Anionic Clay
    221.
    发明申请
    Process For The Preparation Of An Additive-Containing Anionic Clay 失效
    含添加剂阴离子粘土的制备方法

    公开(公告)号：US20080032883A1

    公开(公告)日：2008-02-07

    申请号：US11587393

    申请日：2005-04-26

    Applicant: William Jones

    Inventor： William Jones

    IPC: C04B33/00

    CPC classification number: C01B13/322 ,  B01J20/06 ,  B01J20/08 ,  B01J23/002 ,  C01F7/005 ,  C01P2002/22 ,  C01P2002/50

    Abstract: Process for the preparation of an additive-containing anionic clay comprising the steps of (a) preparing a physical mixture of a divalent and a trivalent metal compound, (b) calcining the physical mixture at a temperature in the range 200-800° C. without performing a prior aging or shaping step, thereby forming a product containing at least 5 wt % of a rehydratable compound, and (c) rehydrating the calcined mixture in aqueous suspension containing an additive to form the additive-containing anionic clay. This process provides a simple and cost-effective way of preparing additive-containing anionic clays. The process does neither require aging or reaction steps before calcination, nor does it require precipitation of metal salts or the handling of inhomogeneous slurries.

    Abstract translation: 制备含添加剂的阴离子粘土的方法包括以下步骤：（a）制备二价和三价金属化合物的物理混合物，（b）在200-800℃的温度下煅烧该物理混合物。 从而形成含有至少5重量％的可再水化合物的产品，和（c）将含有添加剂的含水悬浮液中的煅烧混合物再水合以形成含添加剂的阴离子粘土。 该方法提供了制备含添加剂的阴离子粘土的简单和成本有效的方法。 该方法既不需要煅烧前的老化或反应步骤，也不需要沉淀金属盐或处理不均匀的浆料。

    Hydrothermally stable alumina
    225.
    发明申请
    Hydrothermally stable alumina 有权
    水热稳定氧化铝

    公开(公告)号：US20070275846A1

    公开(公告)日：2007-11-29

    申请号：US11439547

    申请日：2006-05-24

    Applicant: Vladislav I. Kanazirev ,  Peter Rumfola

    Inventor： Vladislav I. Kanazirev ,  Peter Rumfola

    IPC: B01J29/06

    CPC classification number: B01D53/02 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2257/80 ,  B01J20/08 ,  B01J20/103 ,  B01J20/3293

    Abstract: The hydrothermal stability of transition aluminas used as adsorbents and catalyst carriers is improved through their treatment with a soluble silicon inorganic compound such as sodium silicate wherein the silicon compound is mixed with the alumina powder at the production stage of forming particulates by liquid addition. The silicon containing particulates are activated by heating at a temperature lower than 500° C. and treated, before or after the thermal activation, by a colloidal silica solution to produce a hydrothermally stable, low dust alumina. The total silica content of the final product is typically less than 5 mass-%.

    Abstract translation: 通过用可溶性硅无机化合物如硅酸钠处理用作吸附剂和催化剂载体的过渡氧化铝的水热稳定性，其中在通过液体添加形成颗粒的生产阶段将硅化合物与氧化铝粉末混合。 含硅微粒通过在低于500℃的温度下加热而活化，并在热活化之前或之后用胶体二氧化硅溶液进行处理以产生水热稳定的低灰尘氧化铝。 最终产物的总二氧化硅含量通常小于5质量％。

    Method and Composition for Sorbing Toxic Substances
    227.
    发明申请
    Method and Composition for Sorbing Toxic Substances 失效
    吸附有毒物质的方法和组成

    公开(公告)号：US20070224112A1

    公开(公告)日：2007-09-27

    申请号：US11277282

    申请日：2006-03-23

    Applicant: Joseph Iannicelli

    Inventor： Joseph Iannicelli

    IPC: B01J20/02

    CPC classification number: B01J20/06 ,  B01J20/0229 ,  B01J20/0259 ,  B01J20/0285 ,  B01J20/045 ,  B01J20/08 ,  B01J20/3078 ,  B01J20/3085 ,  B01J2220/4887 ,  C02F1/281 ,  C02F2101/20 ,  C02F2101/22 ,  C02F2103/06 ,  C02F2103/10 ,  C10G25/003 ,  Y10S95/90 ,  Y10S210/912 ,  Y10S210/913 ,  Y10S210/914

    Abstract: Toxic substances such as heavy metals are extracted from a medium using a sorbent composition. The composition is derived by sulfidation of red mud, which contains hydrated ferric oxides derived from the Bayer processing of bauxitic ores. Exemplary sulfidizing compounds are H2S, Na2S, K2S, (NH4)2S, and CaSx. The sulfur content typically is from about 0.2 to about 10% above the residual sulfur in the red mud. The sulfidized red mud is effective for sorbing some contaminants, such as mercury, which are not effectively sorbed by red mud. Conversely, red mud is effective for sorbing other contaminants, such as arsenic, which are not effectively sorbed by sulfidized red mud. Thus, some aspects of the invention utilize combinations of red mud and sulfidized red mud, which potentially can allow for the extraction of a wider range of contaminants.

    Abstract translation: 使用吸附剂组合物从介质中提取有毒物质如重金属。 该组合物是通过红泥硫化产生的，其中含有源于拜耳铝土矿矿石的水合氧化铁。 示例性的硫化化合物是H 2 S 2，N 2 S，K 2 S，（NH 4） > 2 和CaS x x。 硫含量通常比红泥中的残留硫高约0.2至约10％。 硫化红泥对于吸收一些不被红泥吸收的污染物如汞是有效的。 相反，红泥对于吸附其他不被硫化红泥吸收的其他污染物如砷是有效的。 因此，本发明的一些方面利用红泥和硫化红泥的组合，其可能允许提取更宽范围的污染物。

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