会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明申请
    • METHOD FOR THE PRODUCTION OF ELEMENTAL MERCURY FROM MERCURY COMPOUNDS
    • 从汞化合物生产元素汞的方法
    • WO2008064667A8
    • 2008-09-04
    • PCT/DE2007002165
    • 2007-11-30
    • UNIV HALLE WITTENBERGKANEFKE RICOKOESER HEINZVOSTEEN BERNHARDFEHRE KRISTINABERGMANN FRANKSTOLLE RAIK
    • KANEFKE RICOKOESER HEINZVOSTEEN BERNHARDFEHRE KRISTINABERGMANN FRANKSTOLLE RAIK
    • G01N33/00G01N31/10
    • G01N33/0045G01N33/0013
    • The aim of the invention is to develop a method allowing mercury to be determined in exhaust gases. All previously known methods for processing exhaust gases use wet chemical processes or thermocatalytic reactors, resulting in not inconsiderable secondary reactions of the components contained in the exhaust gases in addition to mercury. The aim of the invention is to develop a method which reliably converts Hg compounds into measurable Hg(el) without causing said secondary reactions in the presence of other flue gas components. Said aim is achieved by a low-temperature method that uses copper or copper alloys as a catalyst material for converting mercury compounds into elemental mercury. Red brass RG7 is particularly suitable, having the advantageous property of binding free halogens and thus preventing back reaction into mercury halides. Because of the low temperatures, said method prevents SO 2 from being converted into SO 3 while the metal surfaces of the measuring instrument are not additionally corroded. The test gas flows through an Hg converter in which the oxidized Hg compounds (e.g. HgCl 2 ) are converted into elemental Hg with the help of the copper and other metals (Sn, Zn, Pb) contained in the red brass. The invention is used for determining exhaust gases in coal-fired power plants, waste incinerators, and cement factories.
    • 本发明的目的是开发一种能够测定废气中的汞的方法。 所有已知的用于处理废气用的所谓湿化学或热催化反应器工作,导致由废气中添加汞的不可忽视的副反应的方法进一步包含的成分。 其目的是开发一种将汞化合物可靠转化为可测量汞(el)的工艺,该工艺在其他烟气成分的存在下不会产生上述副反应。 使用低温工艺,其使用铜或铜合金作为将汞化合物转化为元素汞的催化剂材料。 特别合适的是铜合金炮铜RG7。 这种材料具有结合游离卤素的有利性质并因此防止了对汞卤化物的逆反应。 该方法不会导致由于低温下SO 2 的转化在SO 3 ,不会发生所述测量装置的金属表面上的附加攻击。 样品气体流过汞转换器,其中氧化的汞化合物(如氯化汞 2 )。随着铜的助剂(以及其它包含在红黄铜的金属:锡,锌,铅)的 元素汞被转化。 测定燃煤电厂,垃圾焚烧厂,水泥厂的废气。