Methods for purifying a solvent
    62.
    发明申请
    Methods for purifying a solvent 失效
    纯化溶剂的方法

    公开(公告)号:US20020014456A1

    公开(公告)日:2002-02-07

    申请号:US09923642

    申请日:2001-08-07

    CPC classification number: B01J20/28 B01D15/00 C02F1/68

    Abstract: An improved inclusive method for purifying a polar solvent such as water includes the re-suspension of finely divided layered materials within which contaminants have been captured, wherein the re-suspension is in a solvent selected primarily on the basis of its ability to re-suspend the finely divided layered materials and/or for its effect on the included contaminant material, and within which additional materials may or may not be intentionally dissolved, mixed, or suspended, in order to recover and reuse the finely divided layered material and/or to selectively recover a specific included contaminant or several specific included contaminants in series. The process is useful in the rapid and efficient recovery of the finely divided layered materials, and in the removal of suspended particles, dissolved materials, immiscible liquids, and living organisms from the polar solvent.

    Abstract translation: 用于纯化极性溶剂如水的改进的包容性方法包括其中捕获了污染物的细碎分层材料的再悬浮,其中再悬浮液在主要基于其再悬浮能力的溶剂中选择的溶剂 细碎的层状材料和/或其对所包含的污染物质的影响,并且其中附加材料可能有意或不会有意地溶解,混合或悬浮,以便回收和再利用细碎的层状材料和/或 选择性地回收特定的包含的污染物或几个特定的​​包含的污染物串联。 该方法可有效地快速且有效地回收细碎的层状材料,以及从极性溶剂中除去悬浮颗粒,溶解的材料,不混溶液体和活生物体。

    Sorbent for use in hot gas desulfurization
    63.
    发明授权
    Sorbent for use in hot gas desulfurization 失效
    吸附剂用于热气脱硫

    公开(公告)号:US5227351A

    公开(公告)日:1993-07-13

    申请号:US668521

    申请日:1991-03-13

    Abstract: A multiple metal oxide sorbent supported on a zeolite of substantially silicon oxide is used for the desulfurization of process gas streams, such as from a coal gasifier, at temperatures in the range of about 1200.degree. to about 1600.degree. F. The sorbent is provided by a mixture of copper oxide and manganese oxide and preferably such a mixture with molybdenum oxide. The manganese oxide and the molybdenum are believed to function as promoters for the reaction of hydrogen sulfide with copper oxide. Also, the manganese oxide inhibits the volatilization of the molybdenum oxide at the higher temperatures.

    Abstract translation: 负载在基本上氧化硅的沸石上的多重金属氧化物吸附剂用于在约1200至约1600°F的温度范围内从工业气体流中脱硫,例如来自煤气化器。吸附剂由 氧化铜和氧化锰的混合物,优选这种与氧化钼的混合物。 据信锰氧化物和钼用作硫化氢与氧化铜反应的促进剂。 此外,氧化锰抑制氧化钼在较高温度下的挥发。

    Colloidal silica-based binder vehicles and gels
    64.
    发明授权
    Colloidal silica-based binder vehicles and gels 失效
    胶体二氧化硅基粘合剂载体和凝胶

    公开(公告)号:US3920578A

    公开(公告)日:1975-11-18

    申请号:US11941471

    申请日:1971-02-26

    Applicant: DU PONT

    Abstract: Rapid-gelling binder vehicles are produced by admixing a small amount of a water-soluble alkaline ionic silicate with a colloidal amorphous silica aquasol and adjusting the resulting composition to a pH of from 5 to 9.5. The amount of alkaline ionic silicate added is within the range of from 0.083 to 1.67 moles per 1000 grams of binder vehicle exclusive of silica and is dependent on the concentration and median particle diameter of the colloidal silica, the concentration of neutral salts and the pH to which the composition is to be adjusted. A binder vehicle prepared in this manner gels within from 5 to 300 seconds to form a gel structure having an exceptionally high porosity, wide pore diameters and high strength and attrition resistance.

    Abstract translation: 通过将少量水溶性碱性离子硅酸盐与胶态无定形二氧化硅水溶胶混合并将所得组合物调节至5至9.5的pH来制备快速凝胶粘合剂载体。 碱性离子硅酸盐的添加量在0.083至1.67摩尔/ 1000克不含二氧化硅的粘合剂载体的范围内,并且取决于胶体二氧化硅的浓度和中值粒径,中性盐的浓度和pH值 该组合物将被调整。 以这种方式制备的粘合剂载体在5至300秒内凝胶以形成具有特别高的孔隙率,宽孔径和高强度和耐磨性的凝胶结构。

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