Process for the destruction of sulfur and nitrogen mustards and their homologous/analogous at ambient conditions
    2.
    发明授权
    Process for the destruction of sulfur and nitrogen mustards and their homologous/analogous at ambient conditions 有权
    在环境条件下破坏硫和氮芥末及其同源/类似物的方法

    公开(公告)号:US08618346B2

    公开(公告)日:2013-12-31

    申请号:US12078001

    申请日:2008-03-26

    CPC classification number: A62D3/38 A62D3/11 A62D2101/02 A62D2203/04

    Abstract: The subject invention provides a potentially economically viable process for the destruction of small to large quantities of sulfur and nitrogen mustards and lewisite, their homologous/analogues, and similar chemical warfare agents at ambient conditions without producing any toxic by-products. The process uses the superoxide ion that is either electrochemically generated by the reduction of oxygen in ionic liquids or chemically by dissolving Group 1 (alkali metals) or Group 2 (alkaline earth metals) superoxides, e.g. potassium superoxide, in ionic liquids.

    Abstract translation: 本发明提供了一种潜在的经济可行的方法,用于在环境条件下破坏小量至大量的硫和氮芥末和蛭石,它们的同源/类似物和类似的化学战剂,而不产生任何有毒的副产物。 该方法使用通过在离子液体中还原氧而电化学产生的超氧化物离子,或通过溶解第1族(碱金属)或第2族(碱土金属)超氧化物,例如, 钾离子液体中的超氧化物。

    System for electrochemical decomposition of sodium azide
    3.
    发明授权
    System for electrochemical decomposition of sodium azide 失效
    叠氮化钠电化学分解系统

    公开(公告)号:US6024860A

    公开(公告)日:2000-02-15

    申请号:US911982

    申请日:1997-08-15

    CPC classification number: A62D3/115 C02F1/467 A62D2101/45

    Abstract: A process and an apparatus for electrochemical decomposition of sodium azide in aqueous alkaline solutions form sodium hydroxide, ammonia, nitrogen, and oxygen. The apparatus contains five major parts, which are (1) an electrolyzer which contains one or more cell units, (2) a rectifier which supplies D.C. electrical current to the electrolyzer, (3) a tank which holds the electrolyte (containing sodium hydroxide and sodium azide) needed to be processed in the electrolyzer, (4) a vacuum which can remove off gases generated by electrolysis in the electrolyzer, and (5) a recovery system which can further separate off gases. It is optional to add a pump in between the tank and the electrolyzer to be used for filling, mechanical agitation, or recycle. The process includes (1) transferring the aqueous solution containing the sodium azide to the electrolyzer, (2) subjecting the aqueous solution to electrolytic action to decompose the sodium azide and to generate off gases including nitrogen, oxygen, and ammonia, and (3) removing off gases. The off gases can also be removed by vacuum and recovered separately in a recovery system.

    Abstract translation: 用于碱性水溶液中的叠氮化钠的电化学分解的方法和装置形成氢氧化钠,氨,氮和氧。 该装置包括五个主要部分,它们是(1)包含一个或多个电池单元的电解槽,(2)向电解器提供直流电流的整流器,(3)保持电解质(含有氢氧化钠和 叠氮化钠)需要在电解槽中进行处理,(4)可除去在电解槽中电解产生的气体的真空,以及(5)能进一步分离出气体的回收系统。 在泵和电解槽之间添加一个泵,用于填充,机械搅拌或循环。 该方法包括(1)将含有叠氮化钠的水溶液转移到电解槽中,(2)使水溶液进行电解作用以分解叠氮化钠并产生包括氮,氧和氨的废气,(3) 去除气体。 废气也可以通过真空除去并在回收系统中单独回收。

    Electrochemical desensitization process
    4.
    发明授权
    Electrochemical desensitization process 失效
    电化学脱敏过程

    公开(公告)号:US5250161A

    公开(公告)日:1993-10-05

    申请号:US904813

    申请日:1992-06-26

    Abstract: Potentially hazardous compositions containing solid combustible fuels, oxidants, nitro-containing, nitramine-containing or nitrato-containing compounds and, in many cases, binders are desensitized by electrolysis at low current and over an extended period of time. According to one disclosed method, compositions containing binders are first oxidized at the anode to cause decomposition and swelling of the binder, followed by further oxidation of the remaining components of the composition or switching of the polarity to cause reduction, as needed. According to another disclosed method, the composition is retained in a reaction vessel separate from the electrolysis cell, and the aqueous leachant from the composition is circulated in two portions through the two halves of the electrolysis cell to form strong oxidizing and reducing reagents, respectively, which are then circulated in succession through the reaction vessel to decompose the composition. In either case, the resulting composition has a lowered sensitivity to initiation by such external influences as inadvertent impact or inadvertent electrostatic discharge.

    Abstract translation: 含有固体可燃性燃料,氧化剂,含硝基,含硝化物或含硝化物的化合物的潜在危险组合物,并且在许多情况下,粘合剂通过在低电流下和长时间内的电解而脱敏。 根据一个公开的方法,首先在阳极处将包含粘合剂的组合物氧化以引起粘合剂的分解和溶胀,随后根据需要进一步氧化组合物的剩余组分或极性的转换以引起还原。 根据另一公开的方法,将组合物保留在与电解槽分离的反应容器中,并且将来自组合物的水性浸出剂分两部分循环通过电解槽的两半以分别形成强氧化和还原试剂, 然后将其随后循环通过反应容器以分解组合物。 在任一种情况下,所得组合物对于由于无意的冲击或无意的静电放电等外部影响引发的敏感性降低。

    Waste treatment process for the disposal of dichlorodifluoromethane by
conversion into polytetrafluoroethylene
    5.
    发明授权
    Waste treatment process for the disposal of dichlorodifluoromethane by conversion into polytetrafluoroethylene 失效
    通过转化成聚四氟乙烯处理二氯二氟甲烷的废物处理过程

    公开(公告)号:US5868943A

    公开(公告)日:1999-02-09

    申请号:US232763

    申请日:1994-04-25

    CPC classification number: A62D3/37 A62D2101/22

    Abstract: A saturated solution of an alkaline earth or alkali metal halide salt is electrolyzed in a flowing mercury cathode electrolysis cell. The amalgam is added dropwise to a solution of dichlorodifluoromethane in a solution of a polar, aprotic solvent, not reducible by such amalgams. The solvent contains inhibitors of polymerization, and may contain a promoting salt of lithium or the "onium" type. Tetrafluoroethylene and unreacted dichlorodifluoromethane gases are evolved, and separated by condensing the dichlorodifluoromethane. The polar, aprotic solvent is removed from the reaction and evaporated, crystallizing the chloride salt of the alkaline earth or alkali metal. This salt is combined with the anolyte of the mercury cell to form brine. The spent mercury from the dechlorination and dimerization is also recycled to the mercury cell. The polar, aprotic solvent is condensed, and mixed with the condensed unreacted dichlorodifluoromethane for further dechlorination and dimerization. The tetrafluoroethylene gas is polymerized in aqueous media, under heat and pressure to form polytetrafluoroethylene.

    Abstract translation: 在流动的汞阴极电解池中电解碱土金属或碱金属卤化物盐的饱和溶液。 将汞齐滴加到二氯二氟甲烷在极性非质子溶剂的溶液中,不能被这种汞合金还原的溶液中。 溶剂含有聚合抑制剂,并且可以含有锂的促进盐或“鎓”型。 四氟乙烯和未反应的二氯二氟甲烷气体被放出,并通过冷凝二氯二氟甲烷分离。 从反应中除去极性的非质子溶剂并蒸发,使碱土金属或碱金属的氯化物盐结晶。 将该盐与汞电池的阳极电解液结合形成盐水。 来自脱氯和二聚化的废汞也被循环到汞电池中。 将极性非质子溶剂冷凝,并与冷凝的未反应二氯二氟甲烷混合,进一步脱氯和二聚。 四氟乙烯气体在水介质中在加热和加压下聚合形成聚四氟乙烯。

    Method for destruction of chlorinated hydrocarbons
    6.
    发明授权
    Method for destruction of chlorinated hydrocarbons 失效
    氯化烃的破坏方法

    公开(公告)号:US5569809A

    公开(公告)日:1996-10-29

    申请号:US497828

    申请日:1995-07-03

    Applicant: John Y. Gui

    Inventor: John Y. Gui

    Abstract: A method for detecting and destroying various chlorinated hydrocarbons and unsaturated hydrocarbons in the environment using electrochemical techniques has been invented. By concentrating the chlorinated hydrocarbons or unsaturated hydrocarbons in a solvent by liquid-solid or liquid-liquid extraction, and then passing current through the solvent extractant containing the chlorinated hydrocarbons or unsaturated hydrocarbons electrochemically removes chlorine and oxidizes unsaturated hydrocarbons. The potential is measured to correlate to the concentration of the chlorinated hydrocarbon specie.

    Abstract translation: 已经发明了一种使用电化学技术检测和破坏环境中各种氯代烃和不饱和烃的方法。 通过液 - 液或液 - 液萃取将氯代烃或不饱和烃浓缩在溶剂中,然后使电流通过含有氯代烃或不饱和烃的溶剂萃取剂电化学去除氯并氧化不饱和烃。 测量电位以与氯化烃类物质的浓度相关。

    On-site electrochemical dehalogenation process and system
    7.
    发明授权
    On-site electrochemical dehalogenation process and system 失效
    现场电化学脱卤过程及系统

    公开(公告)号:US5534124A

    公开(公告)日:1996-07-09

    申请号:US530068

    申请日:1995-09-19

    CPC classification number: A62D3/11 C10G32/02 A62D2101/22

    Abstract: An electrochemical process and system for dehalogenating halogenated hydrocarbons. The process facilitates on-site processing and transformation of waste oils, PCB oils in electrical transformers and chlorinated solvents to salts. The system includes a two-piece tubular structure including an electrical insulating member, an electrode member having perforations leading into a hollow vessel portion. The process includes, by example, reacting the halogenated hydrocarbon compound with at least one metal hydroxide selected from a metallic hydroxide group consisting of sodium hydroxide, calcium hydroxide, zinc hydroxide, and potassium hydroxide in the presence of an alcohol selected from an alcohol group consisting of methanol, ethanol, or isopropanol. The tubular structure is inserted into the container and energized by applying a voltage to the electrode member. The electrochemical reaction results in producing an electrolyte salt solution containing metallic cations and halogen anions which migrate into the hollow vessel portion where the migrated halogen ions are trapped. Upon completion of the reaction, the probe with the trapped halogen is removed from the container and the trapped halogen disposed. The process is repeated until the concentration level of halogen is at, or below, a predetermined acceptable concentrations level. The process has particular utility for on-site treatment of hazardous waste material in 55 gallon drums and facilitates recycling of existing stored hazardous material.

    Abstract translation: 用于脱卤卤代烃的电化学过程和系统。 该方法便于废油,电气变压器中的PCB油和氯化溶剂到盐的现场处理和转化。 该系统包括两件式管状结构,其包括电绝缘构件,具有穿过中空容器部分的穿孔的电极构件。 该方法包括,例如,使卤代烃化合物与至少一种选自氢氧化钠,氢氧化钙,氢氧化锌和氢氧化钾的金属氢氧化物的金属氢氧化物在选自以下的醇类 的甲醇,乙醇或异丙醇。 将管状结构插入容器中并通过向电极构件施加电压而通电。 电化学反应导致产生含有金属阳离子和卤素阴离子的电解质盐溶液,迁移到迁移的卤素离子被捕获的中空容器部分中。 反应完成后,从容器中除去捕获的卤素的探针,并将捕获的卤素置于其上。 重复该过程,直到卤素的浓度水平处于或低于预定的可接受浓度水平。 该过程对于55加仑桶中的危险废物的现场处理具有特殊的用途,并有助于回收现存的危险物质。

    Method and apparatus for removing polycyclic aromatic hydrocarbons from
the exhaust of a municipal waste incinerator
    9.
    发明授权
    Method and apparatus for removing polycyclic aromatic hydrocarbons from the exhaust of a municipal waste incinerator 失效
    从城市垃圾焚烧炉排气中除去多环芳烃的方法和装置

    公开(公告)号:US4818355A

    公开(公告)日:1989-04-04

    申请号:US43576

    申请日:1987-04-27

    CPC classification number: B01J19/088 B01D53/32 B01D53/70 B01D53/72 Y10S422/907

    Abstract: A system for decomposing aromatic hydrocarbons, such as furans, dioxins and PCBs, uses a glow discharge device as an electrochemical reactor. A gas, containing an aromatic hydrocarbon, is supplied at approximately atmospheric pressure to the glow discharge device which includes a pair of electrodes separated by a gap. The gas flows through the gap between the electrodes, one of which is preferably a planar electrode and the other of which is preferably a plurality of pins arranged perpendicular to the planar electrode. The electrodes are connected to a direct current power source via a ballast. The electrical potential across the electrodes is adjusted in conjunction with the flow rate to provide sufficient energy to break the benzene rings in the aromatic hydrocarbon, while preventing arcing across the electrodes.

    Abstract translation: 用于分解芳族烃的系统,例如呋喃,二恶英和PCB,使用辉光放电装置作为电化学反应器。 含有芳香族烃的气体在大气压下供给包含一对间隔开的电极的辉光放电装置。 气体流过电极之间的间隙,其中一个优选为平面电极,另一个优选为垂直于平面电极布置的多个销。 电极通过镇流器连接到直流电源。 电极两端的电位与流速一起调节,以提供足够的能量来破坏芳烃中的苯环,同时防止电弧穿过电极。

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