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    Process for removing deposits from water-carrying systems and devices for water supply
    2.
    发明授权
    Process for removing deposits from water-carrying systems and devices for water supply 失效
    从载水系统和供水设备中清除沉积物的方法

    公开(公告)号：US06827090B2

    公开(公告)日：2004-12-07

    申请号：US09923051

    申请日：2001-08-06

    申请人： Michael Nurnberger ,  Robert Nusko ,  Georg Maier

    发明人： Michael Nurnberger ,  Robert Nusko ,  Georg Maier

    IPC分类号： B08B300

    CPC分类号： C02F5/105 ,  C02F1/66 ,  C02F1/683 ,  C02F1/70 ,  C02F1/722 ,  C02F5/08 ,  C02F5/145 ,  C02F2103/023 ,  C02F2305/04 ,  C23F14/02 ,  C23G1/065 ,  C23G1/066 ,  C23G1/26

    摘要： Process for removing deposits from water-carrying systems and devices for water supply, or from their individual parts, in which the deposits are dissolved by means of an aqueous treatment solution and removed in dissolved form from the system or the device or their individual parts, wherein the deposits are dissolved by means of an aqueous treatment solution comprised of a combination of (i) a reducing agent, in particular in the form of a slat-like, reducing sulfur-oxygen compound, nitrogen-oxygen compound or phosphorous-oxygen compound, and (ii) a complexing agent having phosphonic acid groups or phosphonate groups or a complexing agent of the hydroxy acid type at pH values in the range of approximately 4.5 to 9.5, in particular from approximately 6.0 to 8.0.

    摘要翻译： 从含水处理溶液中溶解有沉积物并从系统或设备或其各自部件中以溶解形式除去的用于从用水供应系统和设备供水的沉积物或其各自的部分去除沉积物的方法， 其中所述沉积物通过由以下组合组成的水处理溶液溶解：（i）还原剂，特别是板状的还原性硫 - 氧化合物，氮氧化合物或磷 - 氧化合物 ，和（ii）具有膦酸基团或膦酸酯基团的络合剂或羟基酸型络合剂，其pH值在约4.5至9.5，特别是约6.0至8.0的范围内。

    Process of using thiophosphates as corrosion inhibitors for metals in aqueous acid systems
    10.
    发明授权
    Process of using thiophosphates as corrosion inhibitors for metals in aqueous acid systems 失效
    在含水酸性体系中使用硫代磷酸盐作为金属腐蚀抑制剂的方法

    公开(公告)号：US3984203A

    公开(公告)日：1976-10-05

    申请号：US374913

    申请日：1973-06-29

    申请人： Bernardus A. Oude Alink

    发明人： Bernardus A. Oude Alink

    IPC分类号： C07F9/173 ,  C23F11/04 ,  C23G1/06 ,  C23F11/16 ,  C23F11/10 ,  C23F11/12

    CPC分类号： C23G1/066 ,  C07F9/173 ,  C23F11/04

    摘要： Thiophosphates of the formula ##EQU1## where X is O or S, R is a hydrocarbon or a substituted hydrocarbon group such as alkyl, aryl, cycloalkyl, alkaryl, aralkyl, etc., and R' is a 3-thione-propene-1 or a substituted 3-thione-propene-1 group; the preparation thereof by reacting a 1,2-dithiolium compound with a phosphite ester; the reversion to the original dithionium compound is effected by reacting the thiophosphate under acid conditions; and the uses of such thiophosphates as corrosion inhibitors in acid systems.

    摘要翻译： 式X的二硫代磷酸酯（RX）2P-SR'，其中X为O或S，R为烃或取代的烃基如烷基，芳基，环烷基，烷芳基，芳烷基等，R'为3 - 硫酮 - 丙烯-1或取代的3-硫酮 - 丙烯-1-基; 其通过1,2-二硫鎓鎓化合物与亚磷酸酯反应制备; 通过在酸性条件下使硫代磷酸酯反应来实现对原始的二硫化钛化合物的反转; 以及这些硫代磷酸盐在酸性体系中作为腐蚀抑制剂的用途。