Process for the removal of endocrine disrupting compounds
    2.
    发明授权
    Process for the removal of endocrine disrupting compounds 有权
    去除内分泌干扰物质的方法

    公开(公告)号:US08057683B2

    公开(公告)日:2011-11-15

    申请号:US12449935

    申请日:2008-03-19

    IPC分类号: C02F1/28

    摘要: The present invention relates to the removal of endocrine disrupting compounds from an aqueous medium by adding surface-reacted natural calcium carbonate or an aqueous suspension comprising surface-reacted calcium carbonate and having a pH greater than 6.0 measured at 20° C., to the medium, wherein the surface-reacted calcium carbonate is a reaction product of natural calcium carbonate with carbon dioxide and one or more acids, the use of the surface-reacted natural calcium carbonate for the removal of endocrine disrupting compounds, as well as to a combination of a surface-reacted natural calcium carbonate and activated carbon for the removal of endocrine disrupting compounds.

    摘要翻译: 本发明涉及通过将表面反应的天然碳酸钙或包含表面反应的碳酸钙并且在20℃下测量的pH大于6.0的水性悬浮液加入到介质中从水性介质中除去内分泌干扰化合物 其中表面反应的碳酸钙是天然碳酸钙与二氧化碳和一种或多种酸的反应产物,使用表面反应天然碳酸钙去除内分泌干扰化合物,以及组合 用于去除内分泌干扰化合物的表面反应的天然碳酸钙和活性炭。

    SURFACE-REACTED PRECIPITATED CALCIUM CARBONATE, PROCESS TO MAKE SAME, AND USES THEREOF
    8.
    发明申请
    SURFACE-REACTED PRECIPITATED CALCIUM CARBONATE, PROCESS TO MAKE SAME, AND USES THEREOF 审中-公开
    表面反应的碳酸钙,其制备方法及其用途

    公开(公告)号:US20100282127A1

    公开(公告)日:2010-11-11

    申请号:US12734992

    申请日:2008-12-02

    摘要: The present invention relates to a process for the preparation of a pigment comprising a surface-reacted precipitated calcium carbonate (PCC), the process comprising the steps of a) providing at least one precipitated calcium carbonate (PCC)-comprising pigment; b) providing H3O+ ions; c) providing at least one anion being capable of forming water-insoluble calcium salts, said anion being solubilised in an aqueous medium; d) contacting said PCC-comprising pigment, with said H3O+ ions and with said solubilised anions in an aqueous medium to form a slurry of surface-reacted PCC-comprising pigment, wherein said surface-reacted PCC comprises an insoluble, at least partially crystalline calcium salt of said anion formed on the surface of the PCC; wherein excess solubilised calcium ions are provided during step d). The present invention further relates to a slurry of surface-reacted PCC comprising pigment obtained by this process, its use as well as the surface-reacted PCC contained in the slurry.

    摘要翻译: 本发明涉及一种制备包含表面反应沉淀碳酸钙(PCC)的颜料的方法,该方法包括以下步骤:a)提供至少一种沉淀碳酸钙(PCC)的颜料; b)提供H3O +离子; c)提供至少一种能够形成水不溶性钙盐的阴离子,所述阴离子在水性介质中溶解; d)将所述含PCC的颜料与所述H 3 O +离子和所述溶解的阴离子在水性介质中接触以形成表面反应的含PCC的颜料的浆料,其中所述表面反应的PCC包含不溶性的至少部分结晶的钙 所述阴离子的盐形成在PCC的表面上; 其中在步骤d)期间提供过量溶解的钙离子。 本发明还涉及包含通过该方法获得的颜料的表面反应的PCC的浆料,其用途以及浆料中所含的表面反应的PCC。