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    Enhanced oxidation of air contaminants on an ultra-low density UV-accessible aerogel photocatalyst
    5.
    发明授权
    Enhanced oxidation of air contaminants on an ultra-low density UV-accessible aerogel photocatalyst 失效
    在超低密度紫外线可接近的气凝胶光催化剂上增强空气污染物的氧化

    公开(公告)号：US06241856B1

    公开(公告)日：2001-06-05

    申请号：US09189705

    申请日：1998-11-11

    申请人： Gerard K. Newman ,  Jeffrey H. Harwell ,  Lance Lobban

    发明人： Gerard K. Newman ,  Jeffrey H. Harwell ,  Lance Lobban

    IPC分类号： B01D5300

    CPC分类号： B01J35/0026 ,  B01J21/063 ,  B01J35/002 ,  B01J35/004

    摘要： A method of enhancing oxidation of air contaminants on an ultra-low density, UV light accessible aerogel photocatalyst is provided. The method includes the steps of providing a photocatalytic reactor system broadly comprising a photocatalytic reactor cell, a UV light source, and a pump to force the contaminated air stream through the photocatalytic reactor cell. The photocatalytic reactor cell includes glass cell. A catalyst bed formed of a titanium dioxide aerogel is provided in the glass cell whereby a high fraction of the titanium dioxide aerogel is accessible to UV light and gas. The catalyst bed is exposed to UV light from the UV light source and a contaminated air stream is introduced into the photocatalytic reactor cell such that the air stream passes through the catalyst bed causing oxidation of the contaminants of the air stream.

    摘要翻译： 提供了一种在超低密度紫外线可及的气凝胶光催化剂上增强空气污染物氧化的方法。 该方法包括提供广泛包含光催化反应器电池，UV光源和泵的光催化反应器系统的步骤，以迫使污染的空气流通过光催化反应器电池。 光催化反应器电池包括玻璃电池。 在玻璃电池中提供由二氧化钛气凝胶形成的催化剂床，由此可以使紫外光和气体接近高比例的二氧化钛气凝胶。 将催化剂床暴露于来自UV光源的UV光，并将污染的空气流引入光催化反应器电池中，使得空气流通过催化剂床，引起空气流的污染物的氧化。

    Particulate amorphous silica associated with thin polymeric film
    6.
    发明授权
    Particulate amorphous silica associated with thin polymeric film 失效
    与薄聚合物膜相关的颗粒状无定形二氧化硅

    公开(公告)号：US5426136A

    公开(公告)日：1995-06-20

    申请号：US37985

    申请日：1993-03-24

    申请人： Walter H. Waddell ,  Larry R. Evans ,  Jeffrey H. Harwell ,  John H. O'Haver

    发明人： Walter H. Waddell ,  Larry R. Evans ,  Jeffrey H. Harwell ,  John H. O'Haver

    IPC分类号： C08F292/00 ,  C08K9/08 ,  C08K9/04

    CPC分类号： C08K9/08 ,  C08F292/00 ,  Y10T428/2998

    摘要： Particulate amorphous silica, surfactant, monomer, and an aqueous solvent are brought into mutual contact so that as equilibrium is approached the concentration of the surfactant in the liquid phase is below, at, or slightly above the critical micelle concentration; the monomer is then polymerized to form polymeric film associated with at least a portion of the surface of the particulate amorphous silica, the polymeric film being (i) homopolymer of an aliphatic monomer or (ii) copolymer of at least two different monomers.

    摘要翻译： 颗粒状无定形二氧化硅，表面活性剂，单体和水性溶剂相互接触，使得当接近平衡时，表面活性剂在液相中的浓度低于或略高于临界胶束浓度; 然后聚合单体以形成与颗粒状无定形二氧化硅的表面的至少一部分相关联的聚合物膜，聚合物膜是（i）脂族单体的均聚物或（ii）至少两种不同单体的共聚物。

    Surfactant enhanced regeneration of hydrophobic materials
    7.
    发明授权
    Surfactant enhanced regeneration of hydrophobic materials 失效
    表面活性剂增强了疏​​水材料的再生

    公开(公告)号：US4943376A

    公开(公告)日：1990-07-24

    申请号：US176616

    申请日：1988-04-01

    申请人： John F. Scamehorn ,  Jeffrey H. Harwell

    发明人： John F. Scamehorn ,  Jeffrey H. Harwell

    IPC分类号： B01J20/34 ,  C01B31/08

    CPC分类号： C01B31/087 ,  B01J20/20 ,  B01J20/3416 ,  B01J20/3475

    摘要： A method of regenerating spent hydrophobic materials, and recovering material sorbed thereon whereby sorbed materials are removed by contacting same with a surfactant solution. The surfactant solution, is of sufficient concentration to form micelles which are aggregates of surfactant molecules with a hydrocarbon-like interior which solubilize a portion of the sorbed material. The resulting solution is removed from the hydrophobic material and the material contained therein separated from the solution. Any residual surfactant on the hydrophobic material may be flushed from the hydrophobic material, if necessary.

    摘要翻译： 再生废疏水材料的方法，以及回收吸附在其上的材料，由此通过与表面活性剂溶液接触来除去吸附材料。 表面活性剂溶液具有足够的浓度以形成胶束，其是具有烃类内部的表面活性剂分子的聚集体，其溶解吸着材料的一部分。 将所得溶液从疏水材料中除去，并将其中所含的材料与溶液分离。 如果需要，疏水材料上的任何残留的表面活性剂可以从疏水材料中冲洗掉。

    Enhanced oxidation of air contaminants on an ultra-low density UV-accessible aerogel photocatalyst
    9.
    发明授权
    Enhanced oxidation of air contaminants on an ultra-low density UV-accessible aerogel photocatalyst 失效

    公开(公告)号：US06524536B2

    公开(公告)日：2003-02-25

    申请号：US09825731

    申请日：2001-04-04

    申请人： Gerard K. Newman ,  Jeffrey H. Harwell ,  Lance Lobban

    发明人： Gerard K. Newman ,  Jeffrey H. Harwell ,  Lance Lobban

    IPC分类号： B01D5300

    CPC分类号： B01J35/0026 ,  B01J21/063 ,  B01J35/002 ,  B01J35/004

    摘要： A method of enhancing oxidation of air contaminants on an ultra-low density, UV light accessible aerogel photocatalyst is provided. The method includes the steps of providing a photocatalytic reactor system broadly comprising a photocatalytic reactor cell, a UV light source, and a pump to force the contaminated air stream through the photocatalytic reactor cell. The photocatalytic reactor cell includes glass cell. A catalyst bed formed of a titanium dioxide aerogel is provided in the glass cell whereby a high fraction of the titanium dioxide aerogel is accessible to UV light and gas. The catalyst bed is exposed to UV light from the UV light source and a contaminated air stream is introduced into the photocatalytic reactor cell such that the air stream passes through the catalyst bed causing oxidation of the contaminants of the air stream.