Situ formed anionic clay-containing bodies

    公开(公告)号:US07008896B2

    公开(公告)日:2006-03-07

    申请号:US10066078

    申请日:2002-01-31

    Abstract: The present invention is directed to a process for the preparation of crystalline anionic clay-containing bodies from sources comprising a trivalent metal source and a divalent metal source comprising the steps of: a) preparing a precursor mixture containing a liquid, a divalent metal source and/or a trivalent metal source, at least one of them being insoluble in the liquid; b) shaping the precursor mixture to obtain shaped bodies; c) optionally thermally treating the shaped bodies; and d) aging the shaped bodies to obtain crystalline anionic clay-containing bodies; with the proviso that if no divalent or trivalent metal source is present in the precursor mixture of step a), such source is added to the shaped bodies after shaping step b) and before aging step d); and with the further proviso that the combined use of an aluminium source as the trivalent metal source and a magnesium source as the divalent metal source is excluded. The quintessence of the present invention is that the major part of the final amount of anionic clay is formed after shaping, i.e., in situ in the shaped body. This results in attrition resistant bodies, without the need to add a binder material.

    Process for the preparation of quasi-crystalline boehmites from inexpensive precursors
    38.
    发明授权
    Process for the preparation of quasi-crystalline boehmites from inexpensive precursors 有权
    用于从廉价前驱物制备准晶体波音的方法

    公开(公告)号:US06689333B1

    公开(公告)日:2004-02-10

    申请号:US09636692

    申请日:2000-08-11

    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 is and 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 aluminum trihydrate and thermally treated forms thereof and inorganic aluminum 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,廉价的准晶体勃姆石前体和添加剂结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。

    Process for producing Mg-containing non-Al anionic clay
    39.
    发明授权
    Process for producing Mg-containing non-Al anionic clay 失效
    含Mg非铝阴离子粘土的制备方法

    公开(公告)号:US06652828B2

    公开(公告)日:2003-11-25

    申请号:US10231673

    申请日:2002-08-30

    Abstract: This patent describes economical and environment-friendly processes for the synthesis of Mg-containing non-Al anionic clays. It involves a one-step process wherein a suspension comprising a trivalent metal source and at least a magnesium containing source as a divalent metal source is reacted to obtain a magnesium-containing non-Al anionic clay. The anionic clay has interlayers containing anions comprising hydroxycarbonate, carbonate, bicarbonate, acetate, hydroxyacetate, oxalate, nitrate, hydroxyl, and/or formate or mixtures thereof. There is no necessity to wash or filter the product. It can be spray dried directly to form microspheres or can be extruded to form shaped bodies. The product can be combined with other ingredients in the manufacture of catalysts, absorbents, pharmaceuticals, cosmetics, detergents, and other commodity products that contain anionic clays.

    Abstract translation: 该专利描述了用于合成含Mg非铝阴离子粘土的经济和环境友好的方法。 它涉及一步法,其中将包含三价金属源和至少含镁源作为二价金属源的悬浮液反应,得到含镁非Al阴离子粘土。 阴离子粘土含有含有羟基碳酸盐,碳酸盐,碳酸氢盐,乙酸盐,羟基乙酸盐,草酸盐,硝酸盐,羟基和/或甲酸盐或其混合物的阴离子的中间层。 没有必要洗涤或过滤产品。 它可以直接喷雾干燥以形成微球体,或者可以挤出形成成型体。 该产品可以与制造催化剂,吸收剂,药物,化妆品,洗涤剂和其他含有阴离子粘土的商品一起制成其他成分。

    Process for producing Mg-containing no-Al anionic clay
    40.
    发明授权
    Process for producing Mg-containing no-Al anionic clay 失效
    制备含Mg的无铝阴离子粘土的方法

    公开(公告)号:US06444188B1

    公开(公告)日:2002-09-03

    申请号:US09637243

    申请日:2000-08-11

    Abstract: This patent describes economical and environment-friendly processes for the synthesis of Mg-containing non-Al anionic clays. It involves (hydro)thermally reacting a slurry comprising a Mg metals source with a trivalent metals source to directly obtain Mg-containing non-Al anionic clay, the Mg sources being an oxide, hydroxide or a carbonate. There is no necessity to wash or filter the product. It can be spray dried directly to form microspheres or can be extruded to form shaped bodies. The product can be combined with other ingredients in the manufacture of catalysts, absorbents, pharmaceuticals, cosmetics, detergents, and other commodity products that contain anionic clays.

    Abstract translation: 该专利描述了用于合成含Mg非铝阴离子粘土的经济和环境友好的方法。 它涉及(氢)使包含Mg金属源的浆料与三价金属源热反应直接获得含Mg非Al阴离子粘土,Mg源是氧化物,氢氧化物或碳酸盐。 没有必要洗涤或过滤产品。 它可以直接喷雾干燥以形成微球体,或者可以挤出形成成型体。 该产品可以与制造催化剂,吸收剂,药物,化妆品,洗涤剂和其他含有阴离子粘土的商品一起制成其他成分。

Patent Agency Ranking