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    Reducing Aluminosilicate Scale in the Bayer Process
    1.
    发明申请
    Reducing Aluminosilicate Scale in the Bayer Process 有权
    在拜耳法中还原铝硅酸盐垢

    公开(公告)号：US20170050861A1

    公开(公告)日：2017-02-23

    申请号：US15346106

    申请日：2016-11-08

    申请人： Nalco Company

    发明人： Everett C. Phillips ,  Timothy La ,  Kailas B. Sawant

    IPC分类号： C01F7/06 ,  C07F7/02 ,  C02F5/12 ,  C01F7/46

    CPC分类号： C01F7/0633 ,  C01F7/0606 ,  C01F7/46 ,  C01F7/47 ,  C02F5/12 ,  C02F2103/16 ,  C07F7/025

    摘要： The invention provides a method of inhibiting the accumulation of DSP scale in the liquor circuit of Bayer process equipment. The method includes adding one or more particular silane based small molecules to the liquor fluid circuit. These scale inhibitors reduce DSP scale formation and thereby increase fluid throughput, increase the amount of time Bayer process equipment can be operational and reduce the need for expensive and dangerous acid washes of Bayer process equipment. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process.

    摘要翻译： 本发明提供了一种抑制拜耳工艺设备液液中DSP垢积累的方法。 该方法包括将一种或多种特定的硅烷基小分子加入到液体流体回路中。 这些阻垢剂可减少DSP垢的形成，从而增加流体的通量，增加拜耳工艺设备可以运行的时间，并减少对拜耳工艺设备昂贵且危险的酸洗液的需求。 结果，本发明大大降低了操作拜耳工艺的总成本。

    Composition for treating acid gas
    5.
    发明授权
    Composition for treating acid gas 有权
    用于处理酸性气体的组合物

    公开(公告)号：US09233338B2

    公开(公告)日：2016-01-12

    申请号：US13680544

    申请日：2012-11-19

    申请人： NALCO COMPANY

    发明人： Alan M. Blair ,  Keith N. Garside ,  William J. Andrews ,  Kailas B. Sawant

    IPC分类号： C07C211/13 ,  C07C211/14 ,  C09K3/32 ,  B01D53/40 ,  B01D53/14

    CPC分类号： B01D53/40 ,  B01D53/1475 ,  B01D53/1493 ,  B01D2252/504 ,  Y02C10/06

    摘要： This invention provides novel compositions comprising substituted polyamines as acid gas scrubbing solutions and methods of using the compositions in an industrial system. The invention relates to the use of such polyamine compounds in industrial processes to remove acidic contaminants from natural and industrial fluid streams, such as natural gas, combustion gas, natural gas, synthesis gas, biogas, and other industrial fluid streams. The compositions and methods of the invention are useful for removal, absorption, or sequestration of acidic contaminants and sulfide contaminants including CO2, H2S, RSH, CS2, COS, and SO2.

    摘要翻译： 本发明提供包含取代的多胺作为酸性气体洗涤溶液的新型组合物和在工业系统中使用该组合物的方法。 本发明涉及这种多胺化合物在工业过程中从天然气和工业流体流中除去酸性污染物的用途，例如天然气，燃烧气体，天然气，合成气，沼气和其它工业流体物流。 本发明的组合物和方法可用于除去，吸收或螯合酸性污染物和硫化物污染物，包括CO 2，H 2 S，RSH，CS 2，COS和SO 2。