Chemically-impregnated silicate agents for mercury control
    41.
    发明授权
    Chemically-impregnated silicate agents for mercury control 有权
    用于汞控制的化学浸渍硅酸盐剂

    公开(公告)号:US07048781B1

    公开(公告)日:2006-05-23

    申请号:US10681671

    申请日:2003-10-07

    IPC分类号: B01D53/04 B01D53/64

    摘要: The present invention is directed to a contaminant removal agent comprising a polyvalent metal sulfide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate such as a zeolite. The agent removes mercury from process streams. The ion exchange to deposit the polyvalent metal on the substrate is preferably performed at a pH above the pHZPC.

    摘要翻译: 本发明涉及在惰性基材的表面上包含多价金属硫化物的污染物去除剂。 底物可以是层状硅酸盐,例如蛭石,硅铝酸盐如蒙脱石,或非层状硅酸盐如沸石。 该代理从流程中除去汞。 将多价金属沉积在基底上的离子交换优选在高于pH“ZPC”的pH下进行。

    Method for reducing emissions from evaporative emissions control systems
    42.
    再颁专利
    Method for reducing emissions from evaporative emissions control systems 有权
    减少蒸发排放控制系统排放的方法

    公开(公告)号:USRE38844E1

    公开(公告)日:2005-10-25

    申请号:US10690298

    申请日:2003-10-21

    摘要: Disclosed is a method for sharply reducing diurnal breathing loss emissions from automotive evaporative emissions control systems by providing multiple layers, or stages, of adsorbents. On the fuel source-side of an emissions control system canister, high working capacity carbons are preferred in a first canister (adsorb) region. In subsequent canister region(s) on the vent-side, the preferred adsorbent should exhibit a flat or flattened adsorption isotherm on a volumetric basis and relatively lower capacity for high concentration vapors as compared with the fuel source-side adsorbent. Multiple approaches are described for attaining the preferred properties for the vent-side canister region. One approach is to use a filler and/or voidages as a volumetric diluent for flattening an adsorption isotherm. Another approach is to employ an adsorbent with the desired adsorption isotherm properties and to process it into an appropriate shape or form without necessarily requiring any special provision for dilution. The improved combination of high working capacity carbons on the fuel source-side and preferred lower working capacity adsorbent on the vent-side provides substantially lower diurnal breathing emissions without a significant loss in working capacity or increase in flow restriction compared with known adsorbents used in canister configurations for automotive emissions control systems.

    摘要翻译: 公开了通过提供吸附剂的多个层或阶段来急剧减少来自汽车蒸发排放控制系统的日间呼吸损失排放的方法。 在排放控制系统罐的燃料源侧,在第一罐(吸附)区域中优选高工作容量的碳。 在排气侧的随后的罐区域中,与燃料源侧吸附剂相比,优选的吸附剂在体积基础上应该呈现平坦或平坦的吸附等温线,并且相对较低的高浓度蒸气容量。 描述了用于获得排气侧罐区域的优选性能的多种方法。 一种方法是使用填料和/或空隙作为容积稀释剂来平坦化吸附等温线。 另一种方法是使用具有所需吸附等温线性质的吸附剂,并将其加工成合适的形状或形式,而不需要任何特殊的稀释配置。 在排气侧的燃料源侧和优选的较低工作能力的吸附剂改进的高加工能力碳的组合提供了明显较低的昼夜呼吸排放,而与罐中使用的已知吸附剂相比,工作能力没有显着损失或流量限制增加 汽车排放控制系统的配置。

    Method of platinnum particles recovery from reaction gas in the process of nitric acid production and granular composite material for recovery of such particles
    43.
    发明申请
    Method of platinnum particles recovery from reaction gas in the process of nitric acid production and granular composite material for recovery of such particles 失效
    在硝酸生产过程中从反应气体中回收铂金颗粒的方法和用于回收这种颗粒的颗粒状复合材料

    公开(公告)号:US20040197250A1

    公开(公告)日:2004-10-07

    申请号:US10486875

    申请日:2004-02-13

    IPC分类号: B01D053/02

    摘要: A method of recovering platinum particles from the flow of the reaction gas in the process of nitric acid production comprising passing the reaction gas through a layer of sorbent formed by a granular composite material, containing calcium oxide and binding agent, which includes magnesium oxide and calcium chloride or/and magnesium chloride with the following components ratio, in weight %: calcium oxide 50-75 magnesium oxide 20-35 calcium chloride or/and magnesium chloride, converting to Clnull 5-15. A granular composite material for recovering platinum particles form the flow of the reaction gas in the process of nitric acid production contains calcium oxide and binding agent that includes magnesium oxide and calcium chloride or/and magnesium chloride with the following components ratio in the final product, in weight %: calcium oxide 50-75 magnesium oxide 20-35 calcium chloride or/and magnesium chloride, converting to Clnull 5-15. The invention allows to reach the concentration of platinum metals in the used sorbent up to 2.5%, to obtain sorbent of the required composition and porosity, in form of granules of any required shape, to increase the sorbent strength and simplify the technology of the recovery of precious metals from the used sorbent.

    摘要翻译: 一种在硝酸生产过程中从反应气体流中回收铂颗粒的方法,包括使反应气体通过由含有氧化钙和结合剂的颗粒状复合材料形成的吸附剂层,包括氧化镁和钙 氯化物或/和氯化镁的组分比例,重量%:氧化钙50-75氧化镁20-35氯化钙或/和氯化镁,转化为Cl - 5-15。 用于在硝酸生产过程中回收铂颗粒形成反应气体流的颗粒状复合材料包含氧化钙和粘合剂,其包含氧化镁和氯化钙或/和氯化镁,在最终产物中具有以下成分比例, 重量%:氧化钙50-75氧化镁20-35氯化钙或/和氯化镁,转化为Cl - 5-15。 本发明允许达到所用吸附剂中铂金属的浓度高达2.5%,以获得任何所需形状的颗粒形式的所需组成和孔隙度的吸附剂,以增加吸附剂强度并简化回收技术 的贵金属从使用的吸附剂。

    Adsorbents for low vapor pressure fluid storage and delivery
    44.
    发明申请
    Adsorbents for low vapor pressure fluid storage and delivery 失效
    用于低蒸汽压液体储存和输送的吸附剂

    公开(公告)号:US20040089151A1

    公开(公告)日:2004-05-13

    申请号:US10611534

    申请日:2003-07-01

    IPC分类号: B01D053/02

    摘要: The invention relates to a fluid storage and delivery system utilizing a porous metal matrix that comprises at least one Group VIII metal or Group IB metal therein. In one aspect of the invention, such porous metal matrix forms a solid-phase metal adsorbent medium, characterized by an average pore diameter of from about 0.5 nm to about 2.0 nm and a porosity of from about 10% to about 30%. Such solid-phase metal adsorbent medium is particularly useful for sorptively storing and desoprotively dispensing a low vapor pressure fluid, e.g., ClF3, HF, GeF4, Br2, etc. In another aspect of the invention, such porous metal matrix forms a solid-phase metal sorbent, characterized by an average pore diameter of from about 0.25 nullm to about 500 nullm and a porosity of from about 15% to about 95%, which can effectively immobilize low vapor pressure liquefied gas and prevent the same from entering the fluid regulator as described in U.S. Pat. No. 6,089,027.

    摘要翻译: 本发明涉及一种利用多孔金属基质的流体储存和输送系统,该多孔金属基质包含至少一种第VIII族金属或IB族金属。 在本发明的一个方面,这种多孔金属基质形成固相金属吸附剂介质,其特征在于平均孔径为约0.5nm至约2.0nm,孔隙率为约10%至约30%。 这样的固相金属吸附剂介质特别适用于吸附储存和反向分配低蒸气压流体,例如ClF 3,HF,GeF 4,Br 2等。在本发明的另一方面,这种多孔金属基质形成固相 金属吸附剂,其特征在于平均孔径为约0.25μm至约500μm,孔隙率为约15%至约95%,其可以有效地固定低蒸气压液化气体并防止其相同地进入流体调节器,如 在美国专利中描述。 No. 6,089,027。

    Hydrogen peroxide vapor system with replaceable desiccant cartridge
    45.
    发明申请
    Hydrogen peroxide vapor system with replaceable desiccant cartridge 有权
    过氧化氢蒸气系统,带可更换干燥剂筒

    公开(公告)号:US20030164091A1

    公开(公告)日:2003-09-04

    申请号:US10377557

    申请日:2003-02-28

    申请人: STERIS INC.

    IPC分类号: B01D053/02

    摘要: A hydrogen peroxide vapor generation unit (10) receives hydrogen peroxide and water solution at an interface (20) and interconnects with an air dryer (14) by way of nipples (72, 92). In one embodiment, the dryer includes a clamping assembly (42) which is latched (74, 94) with the nipples and which receives a disposable desiccant cartridge (40). In an alternate embodiment, a reusable desiccant cartridge (40null) is connected directly to the nipples (72, 92). When the desiccant cartridge (40null) is saturated, it is removed and placed in a regenerator unit (120). A regenerated cartridge is installed in its place.

    摘要翻译: 过氧化氢蒸汽发生单元(10)在界面(20)处接收过氧化氢和水溶液,并通过乳头(72,92)与空气干燥器(14)互连。 在一个实施例中,所述干燥器包括夹紧组件(42),所述夹紧组件(42)与所述接头锁定(74,94)并且接收一次性干燥剂盒(40)。 在替代实施例中,可重复使用的干燥剂盒(40')直接连接到接头(72,92)。 当干燥剂盒(40')饱和时,其被移除并放置在再生器单元(120)中。 一个再生的墨盒安装在它的位置。