Hydroxymethyl diphosphonated polyacrylates for red mud treatment
    9.
    发明授权
    Hydroxymethyl diphosphonated polyacrylates for red mud treatment 失效
    羟基甲基二膦酸聚丙烯酸酯用于红泥处理

    公开(公告)号:US5711923A

    公开(公告)日:1998-01-27

    申请号:US675135

    申请日:1996-07-03

    IPC分类号: B01D21/00 C01F7/00

    CPC分类号: B01D21/00 C01F7/00

    摘要: The invention comprises a process for improved flocculation of Bayer process red mud-containing slurry. The improvement comprises adding to the red mud-containing liquor a hydroxymethyl diphosphonic acid polymer optionally in addition to the conventional flocculant. The polymer is added to the red mud-containing liquor in an amount sufficient to reduce the concentration of suspended solids in the supernatant phase and/or increase the rate of sedimentation.

    摘要翻译: 本发明包括一种改进拜耳法红泥浆的絮凝的方法。 该改进包括向含红泥的液体中加入任选地除了常规絮凝剂之外的羟甲基二膦酸聚合物。 将聚合物以足以降低上清液相中悬浮固体浓度和/或提高沉降速率的量加入含红泥的液体中。

    POLYMERS USEFUL IN AGRICULTURAL APPLICATIONS
    10.
    发明申请
    POLYMERS USEFUL IN AGRICULTURAL APPLICATIONS 有权
    聚合物在农业应用中的应用

    公开(公告)号:US20140298872A1

    公开(公告)日:2014-10-09

    申请号:US13857792

    申请日:2013-04-05

    IPC分类号: C05G3/00 A01G25/16

    摘要: Methods of coating seeds with polymers and seeds coated with such polymers are disclosed herein. The polymers can be phosphonates, sulfonates, polymers of ethylenically unsaturated carboxylic acids, polyaminopolyethermethylene phosphonate, polysuccinic oligomers, acrylic acid/2-acrylamido-2-methylpropane sulfonic acid, blends of acrylic acid/2-acrylamido-2-methylpropane sulfonic acid with polyaminopolyethermethylene phosphonate, sulfomethylated acrylic acid/acrylamide, blends of sulfomethylated acrylic acid/acrylamide with polyaminopolyethermethylene phosphonate, polymaleic acid, acrylic acid/acrylamide copolymers, polyacrylic acid, trimethylglycine hydrochloride, blends of polyaminopolyethermethylene phosphonate with trimethylglycine hydrochloride, and any combination or salt of such polymers. Methods of monitoring, determining, and controlling the concentration of scale inhibitors in an agricultural irrigation system are also disclosed herein.

    摘要翻译: 本文公开了用这种聚合物涂覆的聚合物和种子涂覆种子的方法。 聚合物可以是膦酸盐,磺酸盐,烯键式不饱和羧酸的聚合物,聚氨基聚亚甲基膦酸盐,聚琥珀酸低聚物,丙烯酸/ 2-丙烯酰胺基-2-甲基丙磺酸,丙烯酸/ 2-丙烯酰胺基-2-甲基丙磺酸与聚氨基聚醚亚甲基 膦酸酯,磺甲基化丙烯酸/丙烯酰胺,磺基甲基化丙烯酸/丙烯酰胺与聚氨基聚醚亚甲基膦酸酯的共混物,聚马来酸,丙烯酸/丙烯酰胺共聚物,聚丙烯酸,三甲基甘氨酸盐酸盐,聚氨基聚醚亚甲基膦酸酯与三甲基甘氨酸盐酸盐的共混物,以及这些聚合物的任何组合或盐 。 本文还公开了在农业灌溉系统中监测,测定和控制结垢抑制剂浓度的方法。