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    Thiacrown ether compound corrosion inhibitors for alkanolamine units
    6.
    发明授权
    Thiacrown ether compound corrosion inhibitors for alkanolamine units 失效
    用于链烷醇胺单元的Thiacrown醚化合物腐蚀抑制剂

    公开(公告)号：US06187227B1

    公开(公告)日：2001-02-13

    申请号：US09088994

    申请日：1998-06-02

    申请人： Ljiljana V. Minevski ,  Janet A. Gaboury

    发明人： Ljiljana V. Minevski ,  Janet A. Gaboury

    IPC分类号： C09K300

    CPC分类号： C23F11/06 ,  B01D53/1493

    摘要： The corrosion of metals in contact with aqueous alkanolamine solution in acid gas removal units is inhibited by adding to the alkanolamine solution a corrosion inhibiting amount of a thiacrown ether compound. The compounds are monomeric or polymeric and have from 4 to about 10 sulfur atoms on each of the crown rings. The polymeric thiacrown ether ring structures are substituted with polymerized ethylenically unsaturated monomers and have from 4 to about 10 sulfur atoms on each of the crown rings. In some embodiments of the invention, a linkage “M” connects the thiacrown ether ring structures and the polymers and M is O; S; COO; C1 to C5 substituted or unsubstituted linear or branched alkylene wherein the substituent is OH, SH, F, Br, Cl, I, COOH, amine, mono- or di- C1 to C5 alkylamino, C1 to C3 lower alkanoylamino or nitro; or M is NR6 where R6 is H or C1 to C5 alkyl.

    摘要翻译： 通过向烷醇胺溶液中加入腐蚀抑制量的硫氰酸酯化合物来抑制与酸性气体去除单元中的链烷醇胺水溶液接触的金属的腐蚀。 化合物是单体或聚合的，并且在每个冠环上具有4至约10个硫原子。 聚合物硫辛醚环结构被聚合的烯属不饱和单体取代，并且在每个冠环上具有4至约10个硫原子。 在本发明的一些实施方案中，连接“M”连接thiacrown醚环结构和聚合物，M是O; S; 首席运营官 C1至C5取代或未取代的直链或支链亚烷基，其中取代基为OH，SH，F，Br，Cl，I，COOH，胺，单或二C1至C5烷基氨基，C1至C3低级烷酰氨基或硝基; 或M为NR 6，其中R 6为H或C 1至C 5烷基。

    Thiacrown ether compound
    7.
    发明授权
    Thiacrown ether compound 失效
    Thiacrown醚化合物

    公开(公告)号：US6147225A

    公开(公告)日：2000-11-14

    申请号：US88991

    申请日：1998-06-02

    申请人： Janet A. Gaboury ,  Fu Chen

    发明人： Janet A. Gaboury ,  Fu Chen

    IPC分类号： C07D341/00 ,  C23F11/16 ,  C23F11/173 ,  C07D331/02 ,  C08G73/06

    CPC分类号： C07D341/00 ,  C23F11/16 ,  C23F11/173

    摘要： Thiacrown ether and polymeric thiacrown ether compounds are disclosed. The thiacrown ether ring structures are substituted and have from 4 to about 10 sulfur atoms on each of the crown rings. The polymeric thiacrown ether ring structures are substituted with polymers and have from 4 to about 10 sulfur atoms on each of the crown rings. The thiacrown compounds of the present invention are expected to have utility in a wide range of applications including but not limited to utility as metal ion chelating, sequestering, and complexing agents. The thiacrown compounds are also expected to have utility as corrosion inhibitors for cooling tower, boiler, and waste water systems, hydrocarbon process systems and metal surface treatments systems.

    摘要翻译： 公开了Thiacrown醚和聚合物thiacrown醚化合物。 硫氰酸醚环结构被取代，并且在每个冠环上具有4至约10个硫原子。 聚合物硫辛醚环结构被聚合物取代，并且在每个冠环上具有4至约10个硫原子。 预期本发明的thiacrown化合物在广泛的应用中具有实用性，包括但不限于作为金属离子螯合，螯合和络合剂的用途。 还预计thiacrown化合物可用作冷却塔，锅炉和废水系统，烃工艺系统和金属表面处理系统的腐蚀抑制剂。