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3751 条记录 (耗时 0.041 秒)

    Method for preparing a monolithic stationary phase, associated method for producing a chromatography column and associated separation method
    92.
    发明授权
    Method for preparing a monolithic stationary phase, associated method for producing a chromatography column and associated separation method 有权

    公开(公告)号：US11498051B2

    公开(公告)日：2022-11-15

    申请号：US16627536

    申请日：2018-07-05

    申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

    发明人： Marion Losno ,  Clarisse Mariet

    IPC分类号： B01J20/286 ,  B01J20/32 ,  G01N30/60

    摘要： The invention relates to a method for preparing a monolithic stationary phase in the interior volume of a chromatography column made of thermoplastic polymer. This method comprises the following steps: (i) modifying the inner wall of the chromatography column by implementing the following steps: (a) preparing a polymerizable anchoring composition comprising at least one particular methacrylate monomer, one or more solvents and 2,2-dimethoxy-2-phenylacetophenone, (b) depositing, on the inner wall of the column, the polymerizable anchoring composition prepared in step (a), and (c) polymerizing the polymerizable anchoring composition by irradiation with ultraviolet radiation; (ii) introducing, into the interior volume of the column, a polymerizable monolith synthesis composition comprising first and second particular (meth)acrylate monomers, one or more pore-forming agents and a free-radical polymerization initiator; and (iii) polymerizing the polymerizable monolith synthesis composition. The invention also relates to a method for producing a chromatography column comprising such a monolithic stationary phase and to a chromatographic separation method using such a column.

    CARBON DIOXIDE ADSORBENT BASED ON HYDROPHOBIC SILANE-COATED AMINE-FUNCTIONALIZED MOF/ALUMINA COMPOSITE
    95.
    发明申请
    CARBON DIOXIDE ADSORBENT BASED ON HYDROPHOBIC SILANE-COATED AMINE-FUNCTIONALIZED MOF/ALUMINA COMPOSITE 有权

    公开(公告)号：US20220323930A1

    公开(公告)日：2022-10-13

    申请号：US17615652

    申请日：2020-05-28

    申请人： KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

    发明人： Chang Seop HONG ,  Jong Hyeak CHOE

    IPC分类号： B01J20/22 ,  B01J20/08 ,  B01J20/28 ,  B01J20/30 ,  B01J20/32

    摘要： The present invention relates to a carbon dioxide adsorbent based on a hydrophobic silane-coated amine-functionalized MOF/alumina composite and, more specifically, to a carbon dioxide adsorbent based on a hydrophobic silane-coated amine-functionalized MOF/alumina composite, capable of maintaining structural stability by means of the moisture present in exhaust gas, and thus can effectively capture carbon dioxide in a real fluidized bed. According to the present invention, provided are a carbon dioxide adsorbent and a preparation method therefor, the carbon dioxide adsorbent being capable of maintaining structural stability by means of the moisture present in exhaust gas since the surface of a porous metal-organic framework/alumina oxide composite is coated with hydrophobic silane.

    NON-TOXIC NANOMATERIAL FOR METALS EXTRACTION
    96.
    发明申请
    NON-TOXIC NANOMATERIAL FOR METALS EXTRACTION 有权

    公开(公告)号：US20220323928A1

    公开(公告)日：2022-10-13

    申请号：US17716739

    申请日：2022-04-08

    申请人： Jessica M. Andriolo ,  M. Katie Hailer ,  Jack L. Skinner ,  Jerome P. Downey ,  David L. Hutchins ,  Teagan Leitzke

    发明人： Jessica M. Andriolo ,  M. Katie Hailer ,  Jack L. Skinner ,  Jerome P. Downey ,  David L. Hutchins ,  Teagan Leitzke

    IPC分类号： B01J20/04 ,  B01J20/28 ,  B01J20/30 ,  B01J20/32 ,  C02F1/28 ,  C02F1/48 ,  B09C1/08

    摘要： Fresh water contamination by heavy metals results from a variety of sources and can be damaging to wildlife, alter landscapes, and impact human health. metals removal form water sources is desirable for improving water quality and preventing adverse effects, but also for metals collection and recycling. Adsorption is a desirable metals extraction technique due to economic feasibility. Nanoscale materials exhibit high surface-area-to-volume ratio that lends to high adsorption and reactivity, making them ideal candidates for adsorptive metals extraction processes. Despite these properties, nanomaterials have elicited safety concerns. The extraordinarily small dimensions of these materials allow them to maneuver biological systems, tissues, and even cells, and combined with high reactivity, this translocation can result in toxic effects. It is therefore imperative that safety of nanomaterials for metals extraction be evaluated in addition to adsorptive properties. The current invention describes nanoparticles composed of magnetite, coated in hydroxyapatite, and functionalized for adsorption with titanium dioxide (TiHAMNPs). This material is safe, provides significant adsorption of metals, and allows efficient collection in magnetic systems.

    A Composite Material and a Method of Preparing the Same
    98.
    发明申请
    A Composite Material and a Method of Preparing the Same 有权

    公开(公告)号：US20220305455A1

    公开(公告)日：2022-09-29

    申请号：US17427407

    申请日：2020-01-31

    申请人： AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

    发明人： Xu Li ,  Jiating He

    IPC分类号： B01J20/10 ,  B01J20/02 ,  B01J20/26 ,  B01J20/28 ,  B01J20/32

    摘要： There is provided a composite material comprising a porous silica particle, a plurality of metal particles disposed within the pores of said silica particle and a polymeric coating that at least partially encapsulates said silica particle. There is also provided a method of preparing a composite material, comprising the step of mixing a solution containing a plurality of activated metal and silica particles with a polymer solution to thereby form said composite material, wherein said composite material comprises a porous silica particle, a plurality of metal particles disposed within the pores of said silica particle and a polymeric coating that at least partially encapsulates said silica particle.