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    Detection and identification method employing mossbauer isotopes
    8.
    发明授权
    Detection and identification method employing mossbauer isotopes 失效
    使用苔藓宝同位素的检测和识别方法

    公开(公告)号：US4363965A

    公开(公告)日：1982-12-14

    申请号：US193723

    申请日：1980-10-03

    申请人： Robert K. Soberman ,  Kenneth Krevitz ,  Louis L. Pytlewski

    发明人： Robert K. Soberman ,  Kenneth Krevitz ,  Louis L. Pytlewski

    IPC分类号： G09F3/00 ,  G21K1/12

    CPC分类号： G09F3/00 ,  G21K1/12

    摘要： A detection/identification method for determining the presence of a Mossbauer isotope-containing taggant in a carrier material, e.g., explosives, weapons, currency, tax stamps, or identification documents. The detector includes a Mossbauer isotope-containing detecting substance that is identical to the taggant, and a sensing element responsive to the presence of the tagging substance in the carrier material, provided that the Mossbauer isotope of the tagging substance is in a state of resonance excitation and causes excitation of the Mossbauer isotope of the detecting substance. The sensing element is operatively associated with an indicator for indicating whether or not the sensing element has been actuated. The method is initiated by irradiating the carrier material while in detecting proximity to the detector, with radiation from a radioactive source comprising a Mossbauer isotope-containing substance which corresponds exactly to the taggant.In the case of explosives, identification of the manufacturer, date of manufacture or type of explosive, may be made even after detonation.

    摘要翻译： 一种用于确定载体材料（例如爆炸物，武器，货币，税票或身份证件）中含有莫斯堡同位素的标记物的存在的检测/鉴定方法。 检测器包括与标签牌相同的含有Mossbauer同位素的检测物质，以及响应于载体材料中标记物质的存在的感测元件，条件是标记物质的Mossbauer同位素处于共振激发状态 并引起检测物质的Mossbauer同位素的激发。 感测元件可操作地与指示器相关联，用于指示感测元件是否已被致动。 该方法通过在检测到接近检测器的同时照射载体材料，并且包括来自包括与标签牌正好对应的含Mossbauer同位素的物质的放射源。 在爆炸物的情况下，制造商的识别，制造日期或爆炸物的类型也可能在爆炸后进行。

    Inert solid compositions which become chemically reactive when molten
    9.
    依法登记的发明
    Inert solid compositions which become chemically reactive when molten 失效
    熔融时变成化学反应的惰性固体组合物

    公开(公告)号：USH349H

    公开(公告)日：1987-10-06

    申请号：US25123

    申请日：1987-03-12

    申请人： Kenneth Krevitz ,  Louis L. Pytlewski ,  Charles T. Davey

    发明人： Kenneth Krevitz ,  Louis L. Pytlewski ,  Charles T. Davey

    IPC分类号： A62D1/00 ,  A62D3/00 ,  C08L91/06

    CPC分类号： C08L91/06 ,  A62D1/0007

    摘要： A reagent composition which is chemically inert when solid and is chemica reactive when molten comprises a first substance selected from high molecular weight waxes and polymers and a second substance dissolved, dispersed, or encapsulated in the first substance. The second substance is highly chemically reactive and is selected from strong bases and strong acids. The composition is particularly adapted for use in safety devices automatically activated in response to an increase in the temperature of a chemical system and in processes for automatically discontinuing the operation of or decontaminating the products of a malfunctioning chemical system.

    Method of recovering metals from metal containing materials
    10.
    发明授权
    Method of recovering metals from metal containing materials 失效
    从含金属材料中回收金属的方法

    公开(公告)号：US4349380A

    公开(公告)日：1982-09-14

    申请号：US250009

    申请日：1981-04-01

    申请人： Louis L. Pytlewski ,  Kenneth Krevitz

    发明人： Louis L. Pytlewski ,  Kenneth Krevitz

    IPC分类号： C22B3/16 ,  C22B7/00 ,  C22B11/04 ,  C22B15/12 ,  C22B23/04

    CPC分类号： C22B3/16 ,  C22B7/006 ,  Y02P10/234

    摘要： Valuable metals are recovered from metal-containing materials, such as scrap or waste materials, in which the metal is present in chemically combined form, by a process which comprises contacting the metal-containing material with a reagent comprising the product of the reaction of an alkali metal or alkali metal hydroxide with a polyglycol or a polyglycol monoalkyl ether and oxygen.

    摘要翻译： 有价值金属从包含金属的材料（例如废料或废料）中回收，其中金属以化学结合的形式存在，包括使含金属材料与包含以下物质的反应产物接触的方法： 碱金属或碱金属氢氧化物与聚二醇或聚乙二醇单烷基醚和氧气。