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    • 1. 发明申请
    • APPARATUS FOR DISSOCIATING BULK WASTE IN A MOLTEN METAL BATH
    • 用于在熔融金属浴中分解大块废物的装置
    • WO1998010838A1
    • 1998-03-19
    • PCT/US1996014689
    • 1996-09-12
    • MOLTEN METAL TECHNOLOGY, INC.
    • MOLTEN METAL TECHNOLOGY, INC.LOEWEN, Eric, P.WHITE, Arthur, W.
    • A62D03/00
    • C22B7/02C03B5/00C03B5/005C03B18/00C21B3/04C22B7/001Y02P10/214Y02P40/52Y02W30/542
    • A reactor (12) includes a bulk waste inlet (20) and a gas outlet (28). A baffle (32) within the reactor (12) has a lower edge (34) which can be immersed by a molten metal bath (56) within the reactor (12). The baffle (32) partitions gaseous volume above the molten metal bath (56) into a first region (58), proximate to the bulk waste inlet (20), and a second region (60), proximate to the gas outlet (28). A gas conduit (42) extends from the first region (58) to a portion of the reactor (12) beneath the second region (60). Gas is directed from the first region (58) through the gas conduit (42) to a portion of the molten metal bath beneath (56) the second region (60). The gas pressure is thereby equalized above the molten metal bath (56) in the first (58) and second regions (60) during dissociation of bulk waste directed into the first region (58).
    • 反应器(12)包括大量废物入口(20)和气体出口(28)。 反应器(12)内的挡板(32)具有下边缘(34),该下边缘可被熔融金属浴(56)浸入反应器(12)内。 挡板(32)将熔融金属浴(56)上方的气体体积分隔成邻近大量废物入口(20)的第一区域(58)和靠近气体出口(28)的第二区域(60) 。 气体管道(42)从第一区域(58)延伸到第二区域(60)下方的反应器(12)的一部分。 气体从第一区域(58)通过气体导管(42)引导到第二区域(60)下面(56)下方的熔融金属浴的一部分。 因此,在引导到第一区域(58)的散装废物解离期间,气体压力在第一(58)和第二区域(60)中的熔融金属浴(56)之上均衡。
    • 4. 发明申请
    • METHOD FOR HOT AND SUPERCRITICAL WATER OXIDATION OF MATERIAL USING SPECIFIC REACTANTS
    • 使用特定反应物的材料的热超临界水氧化方法
    • WO1997034660A1
    • 1997-09-25
    • PCT/US1997004443
    • 1997-03-19
    • SRI INTERNATIONALROSS, David, S.JAYAWEERA, IndiraBOMBERGER, David, C.LEIF, Roald, N.
    • SRI INTERNATIONAL
    • A62D03/00
    • A62D3/20A62D2101/22A62D2101/28C02F1/722C02F11/086C02F2101/36Y10S210/908Y10S210/909Y10S210/915
    • This invention relates to a process for the decomposition of material selected from halogenated organic compounds, to compounds which are environmentally acceptable, or are amenable to further degradation by conventional disposal systems to produce environmentally acceptable products, which process comprises: (a) conveying an aqueous solution or an aqueous slurry of material into a reaction zone capable of withstanding the temperatures and pressures of decomposition of the material; (b) contacting the material in the reaction zone with aqueous sodium carbonate as a reactant in an amount effective to decompose the material under hydrothermal oxidation conditions of between about 300 and 600 DEG C and a pressure of between about 10 and 400 atmospheres for between 0.01 and 120 min wherein the specific reactant, a carbonate such as sodium carbonate, at the reaction conditions is present at about 10 % or less as a water-soluble salt as compared to the solubility of the salt at ambient conditions wherein the specific reactant is essentially present as a solid and the oxidation occurs under heterogeneous conditions, wherein the process occurs in the presence of a gaseous oxidant wherein said oxidant is present in an amount of between about 0.01 and 50 % by weight of the material; (c) producing about 99 % or greater of the decomposition of the material, or 99 % or greater conversion of the material to compounds which are environmentally acceptable or to compounds which are amendable to further degradation; and (d) optionally degrading further the compounds produced in step (c) by reaction to environmentally acceptable products. Preferably, the specific reactant is sodium carbonate and the oxidant is oxygen or air. Preferably, the halogenated organic compound is selected from polychlorobiphenyl, polybromobiphenyl mono-chlorobenzodioxin or poly-chlorobenzodioxin compounds.
    • 本发明涉及一种将选自卤代有机化合物的材料分解成环境可接受的化合物或通过常规处理系统进一步降解以生产环境可接受的产品的方法,该方法包括:(a)输送水性 溶液或材料的水性浆料进入能够承受材料分解的温度和压力的反应区; (b)使反应区中的材料与碳酸钠水溶液作为反应物接触,其量可以有效地在约300-600℃的水热氧化条件下分解该材料,在约10-400个大气压之间压力为0.01 和120分钟,其中在反应条件下的特定反应物碳酸酯如碳酸钠在水溶性盐中的存在量为约10%或更少,与盐在环境条件下的溶解度相比,其中特定反应物基本上是 作为固体存在并且氧化发生在非均相条件下,其中该方法在气态氧化剂存在下进行,其中所述氧化剂的存在量为所述材料重量的约0.01%至50%; (c)产生约99%或更多的材料分解,或99%或更多的材料转化为环境可接受的化合物或可修饰为进一步降解的化合物; 和(d)通过与环境可接受的产物反应,任选进一步降解步骤(c)中产生的化合物。 优选地,特定反应物是碳酸钠,氧化剂是氧气或空气。 优选地,卤代有机化合物选自聚氯联苯,聚溴联苯一氯代二氯苯或聚氯苯并二恶英化合物。
    • 6. 发明申请
    • APPARATUS AND METHOD FOR TREATING SOLIDS
    • 用于处理固体的装置和方法
    • WO1997027903A1
    • 1997-08-07
    • PCT/US1997000538
    • 1997-01-27
    • VIAL, Jean-Luc
    • A62D03/00
    • B09B3/00B01J8/12C10J3/02C10J3/20C10J3/34C10J3/36C10J2300/1628C10J2300/1631
    • An apparatus and method suitable for the treatment of solid materials, and, particularly, waste, are disclosed. The apparatus includes a reaction vessel (20) including a reaction chamber (16); a system (3) for introducing solid material into the reaction chamber; a steam generating system for supplying steam to the reaction chamber to react with the solid materials; a grate (2) disposed in the reaction chamber (16) having openings of an effective size to pass ash and steam; an ash extraction system (4) disposed below the grate for extracting ash. The extracted ash may be fed into the reaction chamber (16) along with selected metallic oxides and lime. The apparatus may further include peripheral systems for treating the ash and gaseous by-products.
    • 公开了适用于固体材料,特别是废物的处理的装置和方法。 该装置包括:反应容器(20),包括反应室(16); 用于将固体材料引入反应室的系统(3); 用于向反应室供应蒸汽以与固体材料反应的蒸汽发生系统; 设置在具有有效尺寸的开口以使灰分和蒸汽通过的反应室(16)中的格栅(2) 设置在炉排下方的用于提取灰分的灰分提取系统(4)。 提取的灰分可以与选择的金属氧化物和石灰一起进料到反应室(16)中。 该装置还可以包括用于处理灰分和气体副产物的外围系统。
    • 7. 发明申请
    • METHOD OF DECOMPOSING ASBESTOS-CONTAINING WASTES
    • 分解含有ASBESTOS的废物的方法
    • WO1997027902A1
    • 1997-08-07
    • PCT/FI1997000057
    • 1997-02-03
    • HJA-ENGINEERING OYPUSA, Markku, Pete, JuhaniKARHUMÄKI, Markku, KaleviAHONEN, Heikki, Juhani
    • HJA-ENGINEERING OY
    • A62D03/00
    • A62D3/36A62D2101/41B09B3/0066C04B14/405C04B18/0481Y02W30/58Y02W30/91C04B14/40C04B20/023
    • The invention relates to a method for neutralizing asbestos waste. According to the method, the waste is contacted with an acid capable of dissolving the asbestos, or with a salt thereof. According to the method, a hydrochloric acid solution is used as the acid, containing a suitable potassium salt in an amount of about 0.5 to 10 % based on the amount of the hydrochloric acid, in particular potassium sulphate, potassium chloride, potassium nitrate, potassium carbonate or potassium phosphate, and possibly a small amount of nitric acid and/or phosphoric acid. In order to enhance the dissolution of the asbestos, the waste is first wetted with water which may contain a surface activity reducing agent. The invention also relates to a method for disposing of the asbestos material in acetylene cylinders, whereby the acetylene cylinder is cut in two and the material is removed by hydrostatic pressure. Next, the wetted material is treated with a hydrochloric acid solution. The invention can also advantageously be applied to demolition waste from buildings.
    • 本发明涉及一种中和石棉废物的方法。 根据该方法,废物与能够溶解石棉的酸或其盐接触。 根据该方法,使用盐酸溶液作为酸,其含有相对于盐酸的量为约0.5〜10%的合适的钾盐,特别是硫酸钾,氯化钾,硝酸钾,钾 碳酸盐或磷酸钾,以及可能的少量硝酸和/或磷酸。 为了增强石棉的溶解度,首先用可能含有表面活性降低剂的水润湿废物。 本发明还涉及一种在乙炔气瓶中处理石棉材料的方法,由此将乙炔气瓶切成两部分,并通过静水压力除去材料。 接下来,用盐酸溶液处理润湿的材料。 本发明还可以有利地应用于从建筑物中拆除废物。