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    • 1. 发明授权
    • Process for the separation of radioactive iodine compounds by
precipitation
    • 通过沉淀分离放射性碘化合物的方法
    • US5352367A
    • 1994-10-04
    • US970847
    • 1992-11-03
    • Ken-ichi OchiaiYoshiro Fuseya
    • Ken-ichi OchiaiYoshiro Fuseya
    • G21F9/06G21F9/10C02F1/70C02F1/58
    • G21F9/10Y10S210/911
    • A process for the separation of radioactive iodine compounds by precipitation is provided. This process comprises adding 0.1 to 3 parts by weight of a reducing agent and an effective amount of silver nitrate to 100 parts by weight of a liquid waste containing radioactive iodine compounds while keeping the liquid waste at a temperature ranging from 20.degree. to 80.degree.C., and stirring the obtained mixture for 0.5 to 72 hours to precipitate the radioactive iodine compounds. Silver nitrate is preferably used in a molar concentration which is 1 to 4 times that of radioactive iodine molecules contained in the liquid waste. By this process, iodates which could not be precipitated by conventional methods can be effectively precipitated and separated to thereby reduce the amount of radioactive iodine discharged to the environment.
    • 提供了通过沉淀分离放射性碘化合物的方法。 该方法包括向100重量份含有放射性碘化合物的废液中加入0.1至3重量份的还原剂和有效量的硝酸银,同时将废液保持在20至80℃的温度 并将所得混合物搅拌0.5至72小时以沉淀放射性碘化合物。 硝酸银的摩尔浓度优选为废液中含有的放射性碘分子的1〜4倍。 通过该方法,可以有效地沉淀和分离通过常规方法不能沉淀的碘酸盐,从而减少排放到环境中的放射性碘的量。
    • 3. 发明授权
    • Temperature history indicator and its manufacturing method
    • 温度历史指标及其制造方法
    • US4931420A
    • 1990-06-05
    • US043745
    • 1987-04-29
    • Makoto AsanoHaruki TsutsumiEishi TanakaYoshiro FuseyaKiyoharu HasegawaHiroyuki Akahori
    • Makoto AsanoHaruki TsutsumiEishi TanakaYoshiro FuseyaKiyoharu HasegawaHiroyuki Akahori
    • G01K11/06G01K3/04
    • G01K3/04Y10S428/913Y10T428/24802Y10T428/24868Y10T428/24876
    • A temperature history indicator and its manufacturing method wherein the indicators are formed as chips, labels, tags or the like and accompanied with those goods or their packings which must be stored at a certain temperature or lower and when their storage temperature rises higher than the certain temperature over a not-permissible time period, this fact can be visibly shown by development or change of color caused by chemical matters in the indicator, characterized in that when temperature rises higher than a certain value, a hydrophobic organic compound enclosed in microcapsules melts and diffuses causing a dye-precursor and a color developer, which are prepared independently of the compound, to be contacted with each other to irreversibly achieve color development or change, that this color development or change system is rendered operative when the temperature rise continues to exceed a permissible time period, and that when the tops of the color development or change systems are coated with a transparent material, the arrangement of a bonding agent is improved neither to break those chemical compositions which cause the color development or change nor to lower their color developing function.
    • 温度历史指示器及其制造方法,其中指示器形成为芯片,标签,标签等,并且伴随着必须在一定温度或更低温度下储存的那些商品或其包装,并且当它们的储存温度升高到高于某一温度 温度超过不允许的时间段,这一事实可以通过由指示剂中的化学物质引起的颜色的变化或变化而明显地显示,其特征在于当温度升高高于一定值时,封闭在微胶囊中的疏水性有机化合物熔化和 使独立于化合物制备的染料前体和显色剂的扩散彼此接触以不可逆转地实现显色或变化,使得该显色或变色系统在温度升高持续超过 允许的时间段,以及颜色开发或更换系统的顶部 涂覆有透明材料,粘合剂的布置既不破坏导致显色或变色的化学组成,也不能降低其显色功能。