Stabilized substituted aminomethane-1, 1-diphosphonic acid n-oxides and
use thereof in preventing scale and corrosion
    3.
    发明授权
    Stabilized substituted aminomethane-1, 1-diphosphonic acid n-oxides and use thereof in preventing scale and corrosion 有权
    稳定的取代氨基甲烷-1,1-二膦酸N-氧化物及其在防止垢和腐蚀中的用途

    公开(公告)号:US06083403A

    公开(公告)日:2000-07-04

    申请号:US186592

    申请日:1998-11-05

    IPC分类号: C02F5/14

    CPC分类号: C02F5/14

    摘要: This invention relates to novel organic phosphonate compounds which can be used as water treatment agents. More specifically, this invention relates to 1,1 -diphosphonic acid N-oxides and water-soluble salts thereof for control of corrosion and scale in aqueous systems. Preferred N-oxides are morpholinomethane-1,1-diphosphonic acid N-oxide and N,N-dimethylaminomethane-1,1-diphosphonic acid N-oxide.

    摘要翻译: 本发明涉及可用作水处理剂的新型有机膦酸酯化合物。 更具体地,本发明涉及1,1-二膦酸N-氧化物及其水溶性盐,用于控制水性体系中的腐蚀和结垢。 优选的N-氧化物是吗啉代甲烷-1,1-二膦酸N-氧化物和N,N-二甲基氨基甲烷-1,1-二膦酸N-氧化物。

    Ether diphosphonate scale inhibitors
    4.
    发明授权
    Ether diphosphonate scale inhibitors 失效
    醚二膦酸盐垢抑制剂

    公开(公告)号:US5772893A

    公开(公告)日:1998-06-30

    申请号:US696450

    申请日:1996-08-13

    IPC分类号: C02F5/00 C02F5/14 C07F9/38

    CPC分类号: C07F9/386 C02F5/14

    摘要: The invention is a method for the prevention of scale formation on metal or other surfaces in contact with scale-forming industrial water with an effective scale-inhibiting amount of an ether 1,1-diphosphonate of the general formula: ##STR1## The invention is also a method for the prevention of corrosion on metal surfaces in contact with corrosive industrial water with an effective corrosion-inhibiting amount of an ether 1,1-diphosphonate of the same general formula. A preferred ether 1, 1-diphosphonate is 1,1, diphosphono-4,7-dioxaoctane for both methods.

    摘要翻译: 本发明是一种用于防止在具有阻垢量的具有下列通式的醚的1,1-二膦酸盐的鳞屑形成工业用水接触的金属或其它表面上的结垢的方法: 本发明还是一种防腐蚀金属表面与腐蚀性工业用水腐蚀的方法,该腐蚀性工业用水具有相同通式的有效防腐蚀量的1,1-二膦酸盐。 优选的1,1-二膦酸醚是1,1,二膦酰-4,7-二氧杂辛烷,用于两种方法。