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    Methods for melting of materials to be treated
    2.
    发明授权
    Methods for melting of materials to be treated 有权

    公开(公告)号：US07211038B2

    公开(公告)日：2007-05-01

    申请号：US10808929

    申请日：2004-03-25

    申请人： Leo E. Thompson ,  Patrick S. Lowery ,  Steven L. Woosley

    发明人： Leo E. Thompson ,  Patrick S. Lowery ,  Steven L. Woosley

    IPC分类号： B09B3/00

    CPC分类号： C03B5/0334 ,  B09C1/067 ,  C03B5/005 ,  C03B5/0272

    摘要： A process for melting material to be treated includes placing material to be treated in a container that may include an insulating lining, heating the material to be treated and melting the material to be treated, preferably allowing the melted material to cool to form a vitrified and/or crystalline mass, and disposing of the mass. The mass is either disposed while contained in container or removed from container after cooling and disposed. Insulating lining may comprise one or more layers of a thermal insulating material, one or more layers of refractory material, or a combination thereof. The material to be treated may be heated by placing at least two electrodes in the material to be treated and passing a current between the electrodes, or alternatively, by placing at least one heating element in the material to be treated and passing heat into the material to be treated.

    Method and system for high-temperature waste treatment
    6.
    发明授权
    Method and system for high-temperature waste treatment 失效
    高温废物处理方法和系统

    公开(公告)号：US06355904B1

    公开(公告)日：2002-03-12

    申请号：US08661413

    申请日：1996-06-07

    申请人： James A. Batdorf ,  John D. Dalton ,  Raymond M. Geimer ,  Robert L. Gillins ,  Milo M. Larsen ,  Gary L. Leatherman ,  Steven D. Poling ,  William P. Wolfe

    发明人： James A. Batdorf ,  John D. Dalton ,  Raymond M. Geimer ,  Robert L. Gillins ,  Milo M. Larsen ,  Gary L. Leatherman ,  Steven D. Poling ,  William P. Wolfe

    IPC分类号： B23K1000

    CPC分类号： F23G5/16 ,  B09B3/00 ,  B09B3/005 ,  B09C1/067 ,  C03B5/005 ,  C03B5/025 ,  C22B4/005 ,  C22B7/001 ,  F23G5/006 ,  F23G5/085 ,  F23J15/006 ,  G21F9/308 ,  G21F9/32 ,  Y02P10/214 ,  Y02P40/57 ,  Y10S588/90

    摘要： A waste treatment system is provided, including a waste melter system and an air pollution control system. Hazardous and/or radioactive waste in drums is conducted through a waste feed system into a plasma chamber where the waste is exposed to heat from a plasma torch. A part of the waste volatilizes and leaves the plasma chamber for a secondary reaction chamber, in which the waste is combusted to form a waste gas stream. The air pollution control system treats the waste gas stream through quenching, filtering and scrubbing, to produce a clean gas stream suitable for release to the atmosphere. Offgas may be recirculated through the waste treatment system as desired. The waste remaining inside the plasma chamber melts and drops onto sloped processing surfaces inside a hearth located below the plasma torch. The hearth includes ground electrodes configured for electrical contact with waste held in the hearth so that the melted waste in the hearth may be further heated by the plasma torch. As the melted waste is heated inside the hearth, the hearth is static, enabling the melted waste to separate into a first metal fraction having a high specific gravity and a second slag fraction having a relatively lower specific gravity. When the melted waste is processed sufficiently, the hearth is first lowered from the plasma chamber and then tilted in a first direction to pour the slag fraction and then tilted in another to pour the metal fraction from under an underflow weir configured in the hearth. The hearth includes a second ground electrode strategically situated near the underflow weir to ensure that the waste remains melted as it flows through a flow path under the underflow weir.

    摘要翻译： 提供了一种废物处理系统，包括废胶机系统和空气污染控制系统。 鼓中的危险和/或放射性废物通过废物进料系统进入等离子体室，在该等离子体室中废物暴露于等离子体焰炬的热量。 废弃物的一部分挥发并离开等离子体室用于二次反应室，其中废物被燃烧以形成废气流。 空气污染控制系统通过淬火，过滤和洗涤处理废气流，产生适合释放到大气中的清洁气流。 废气可以根据需要再循环通过废物处理系统。 留在等离子体室内的废物熔化并滴落到位于等离子体焰炬下面的炉膛内的倾斜处理表面上。 炉膛包括配置为与搁置在炉膛中的废物电接触的接地电极，使得炉膛中的熔化废物可以被等离子炬进一步加热。 当熔化的废物在炉膛内被加热时，炉床是静态的，使得熔化的废物能够分离成具有高比重的第一金属部分和具有相对较低比重的第二炉渣部分。 当熔化的废物被充分处理时，首先将炉床从等离子体室中放下，然后沿第一方向倾斜以倾倒炉渣部分，然后在另一个方向倾斜，从而在配置在炉膛中的下溢堰下方倒入金属部分。 炉膛包括位于下溢堰附近的第二接地电极，以确保废物在流过下溢堰下方的流动路径时保持熔化。

    Method for indirect chemical reduction of metals in waste
    7.
    发明授权
    Method for indirect chemical reduction of metals in waste 失效
    废物中金属间接化学还原的方法

    公开(公告)号：US5322547A

    公开(公告)日：1994-06-21

    申请号：US34557

    申请日：1993-03-19

    申请人： Christopher J. Nagel ,  Robert D. Bach

    发明人： Christopher J. Nagel ,  Robert D. Bach

    IPC分类号： B09B3/00 ,  A62D3/00 ,  A62D3/32 ,  A62D3/37 ,  A62D101/08 ,  A62D101/20 ,  A62D101/40 ,  A62D101/43 ,  B09C1/06 ,  C22B5/00 ,  C22B5/02 ,  C22B5/04 ,  C22B7/00 ,  C22B7/04 ,  F23G5/00

    CPC分类号： C22B7/04 ,  A62D3/32 ,  B09C1/06 ,  B09C1/067 ,  C22B5/02 ,  C22B7/001 ,  A62D2101/08 ,  A62D2101/20 ,  A62D2101/40 ,  A62D2101/43 ,  Y02P10/214 ,  Y10S423/12

    摘要： An environmentally sound process is described for the remediation of waste materials that allows the separation, recovery and decontamination of metals. The method includes chemically reducing essentially all of a reducible toxic and potentially hazardous metal-containing component of a waste composition. The waste is directed into a molten metal bath, including a first reducing agent which, under the operating conditions of the molten metal bath, chemically reduces a metal of the metal-containing component to form a dissolved intermediate. A reagent is directed into the molten metal bath for metal-ligand exchange with the dissolved intermediate to form a metal-ligand exchange product that includes the metal of the dissolved intermediate. A second reducing agent is directed into the molten metal bath. The second reducing agent, under the operations of the molten metal bath, chemically reduces the metal of the metal-ligand exchange product. The rate at which the second reducing agent is directed into the molten metal bath, relative to the rate at which the component of the waste is directed into the molten metal bath, is sufficient to cause essentially all metal of the metal-containing intermediate formed to be reduced in the molten metal bath, thereby indirectly chemically reducing the component of the waste. This indirect reduction technology can remediate a variety of materials, including ash metal-contaminated municipal waste, vitreous slag-like materials and spent metal catalysts, while allowing the recovery of remediable metals.

    摘要翻译： 描述了一种无害环境的过程，用于修复允许金属分离，回收和去污的废料。 该方法包括化学还原废物组合物中所有可还原的有毒和潜在危险的含金属成分。 将废物引入熔融金属浴中，包括第一还原剂，其在熔融金属浴的操作条件下化学还原含金属组分的金属以形成溶解的中间体。 将试剂引入熔融金属浴中以与溶解的中间体进行金属 - 配体交换以形成包含溶解的中间体的金属的金属 - 配体交换产物。 将第二还原剂引入熔融金属浴中。 第二种还原剂在熔融金属浴的作用下化学还原金属 - 配体交换产物的金属。 第二还原剂相对于废物的组分被引入熔融金属浴的速率相对于熔融金属浴的速率足以使基本上所有含金属的中间体的所有金属形成 在熔融金属浴中被还原，从而间接化学地还原废物的组分。 这种间接还原技术可以补救各种材料，包括灰渣金属污染的城市废物，玻璃状炉渣样物料和废金属催化剂，同时允许回收可补救金属。

    In situ heating to detoxify organic-contaminated soils
    8.
    发明授权
    In situ heating to detoxify organic-contaminated soils 失效
    进行原位加热，对有机污染土壤进行解毒

    公开(公告)号：US4957393A

    公开(公告)日：1990-09-18

    申请号：US181635

    申请日：1988-04-14

    申请人： James L. Buelt ,  Kenton H. Oma

    发明人： James L. Buelt ,  Kenton H. Oma

    IPC分类号： B09C1/06 ,  E02D3/11 ,  E21B36/04 ,  E21B43/24 ,  H05B3/03 ,  H05B3/60

    CPC分类号： H05B3/60 ,  B09C1/065 ,  B09C1/067 ,  E02D3/11 ,  E21B36/04 ,  E21B43/24 ,  H05B3/03 ,  B09C2101/00

    摘要： A method and apparatus for decontaminating ground areas where toxic chemicals are buried comprises disposition of a plurality of spaced electrodes in the ground to be treated and application of a voltage across the electrodes for bringing about current flow through the ground. Power delivered to the ground volatilizes the chemicals which are collected and directed to a gas treatment system. The preferred form of the invention employs high voltage arc discharge between the electrodes for heating a ground region to relatively high temperatures at relatively low power levels.

    摘要翻译： 用于对有毒化学物质进行掩埋的地面区域进行净化的方法和装置包括在待处理的地面中设置多个间隔开的电极，并且在电极之间施加电压以使电流流过地面。 输送到地面的电力使收集和引导到气体处理系统的化学品挥发。 本发明的优选形式在电极之间采用高压电弧放电，以在相对低的功率水平下将接地区域加热到较高的温度。

    Methods for melting of materials to be treated
    10.
    发明申请
    Methods for melting of materials to be treated 有权
    熔化待处理材料的方法

    公开(公告)号：US20070208208A1

    公开(公告)日：2007-09-06

    申请号：US11796263

    申请日：2007-04-27

    申请人： Leo Thompson ,  Patrick Lowery ,  Steven Woosley

    发明人： Leo Thompson ,  Patrick Lowery ,  Steven Woosley

    IPC分类号： C02F11/18

    CPC分类号： C03B5/0334 ,  B09C1/067 ,  C03B5/005 ,  C03B5/0272

    摘要： A process for melting material to be treated includes placing material to be treated in a container that may include an insulating lining, heating the material to be treated and melting the material to be treated, preferably allowing the melted material to cool to form a vitrified and/or crystalline mass, and disposing of the mass. The mass is either disposed while contained in container or removed from container after cooling and disposed. Insulating lining may comprise one or more layers of a thermal insulating material, one or more layers of refractory material, or a combination thereof. The material to be treated may be heated by placing at least two electrodes in the material to be treated and passing a current between the electrodes, or alternatively, by placing at least one heating element in the material to be treated and passing heat into the material to be treated.

    摘要翻译： 用于熔化待处理材料的方法包括将待处理的材料放置在可以包括绝缘衬里的容器中，加热待处理的材料并熔化待处理的材料，优选使熔融材料冷却以形成玻璃化和 /或结晶质量，以及物料的处置。 物料在容器中放置或者在冷却和处理后从容器中取出。 绝缘衬里可以包括一层或多层绝热材料，一层或多层耐火材料或其组合。 要处理的材料可以通过将至少两个电极放置在待处理的材料中并在电极之间传递电流来加热，或者通过将至少一个加热元件放置在待处理的材料中并将热量传递到材料中 待处理