Methods and apparatus for treating cyanide- and/or complexing-agent-containing solutions
    1.
    发明申请
    Methods and apparatus for treating cyanide- and/or complexing-agent-containing solutions 审中-公开
    用于处理含氰化物和/或络合剂的溶液的方法和设备

    公开(公告)号:US20080185348A1

    公开(公告)日:2008-08-07

    申请号:US12002642

    申请日:2007-12-17

    IPC分类号: C02F1/02

    摘要: A method of treating an aqueous cyanide- and/or complexing-agent-containing solution, including high-temperature treating the solution in a closed reaction vessel, discharging at least a portion of the treated solution from the reaction vessel, at least partially replacing the discharged fraction with untreated solution, and subjecting the untreated solution to high-temperature treatment along with a treated-solution fraction remaining in the reaction vessel.

    摘要翻译: 一种处理含氰化物和/或络合剂的溶液的方法,包括在封闭的反应容器中高温处理溶液,将至少一部分处理溶液从反应容器排出,至少部分地代替 未处理溶液排出的馏分,并将未处理溶液与残留在反应容器中的处理溶液馏分一起进行高温处理。

    Method for the treatment of sewage containing nitrites
    2.
    发明授权
    Method for the treatment of sewage containing nitrites 失效
    用于处理含有亚硝酸盐的污水的方法

    公开(公告)号:US4968436A

    公开(公告)日:1990-11-06

    申请号:US344655

    申请日:1989-04-27

    IPC分类号: C02F1/68 C02F1/70

    摘要: In a method for the treatment of sewage containing nitrites comprising the reduction of the nitrite with urea in an acid medium it is provided, to obtain end products friendly to the environment and an economic conduction of the method, that a greatly acid urea solution be supplied and circulated through a pipe reactor, and that the sewage containing nitrite to be treated should be injected into the pipe reactor. Furthermore, the invention relates to a device for carrying out the method and to an examination device which is particularly suitable for the periodic determination of the nitrite content in a circulation duct.

    摘要翻译: 在含有亚硝酸盐的污水处理方法中,包括在酸性介质中用尿素还原亚硝酸盐,以获得对环境友好的最终产物和该方法的经济传导,提供大量酸性的尿素溶液 并通过管式反应器循环,并将含有待处理亚硝酸盐的污水注入管式反应器。 此外,本发明涉及一种用于实施该方法的装置和一种特别适用于周期性确定循环管道中的亚硝酸盐含量的检查装置。

    Method and kit for working up a gold bath
    3.
    发明授权
    Method and kit for working up a gold bath 失效
    处理金浴的方法和工具包

    公开(公告)号:US06652623B2

    公开(公告)日:2003-11-25

    申请号:US09836440

    申请日:2001-04-18

    IPC分类号: C22B1104

    摘要: In a method for working up a gold bath or a gold alloy bath, which contains gold in the form of a gold sulphite complex, working up takes place through at least one oxidant, which oxidizes the sulphite contained in the complex and reduces the gold contained in the complex to its metallic form. In the method in particular hydrogen peroxide and potassium-peroxo-monosulphate are used as oxidants. The oxidants are provided in a kit.

    摘要翻译: 在一种用于处理含有金亚硫酸盐络合物形式的金的金浴或金合金浴的方法中,通过至少一种氧化剂进行加工,氧化剂使复合物中所含的亚硫酸盐氧化并且还原金 在复杂的金属形式。 在该方法中,特别是使用过氧化氢和过氧化一硫酸钾作为氧化剂。 氧化剂在试剂盒中提供。