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34 条记录 (耗时 0.025 秒)

    Reducing aluminosilicate scale in the Bayer process
    1.
    发明授权
    Reducing aluminosilicate scale in the Bayer process 有权
    在拜耳工艺中减少铝硅酸盐垢

    公开(公告)号：US08545776B2

    公开(公告)日：2013-10-01

    申请号：US12567116

    申请日：2009-09-25

    申请人： Timothy La ,  Ji Cui ,  John D. Kildea ,  David H. Slinkman

    发明人： Timothy La ,  Ji Cui ,  John D. Kildea ,  David H. Slinkman

    IPC分类号： C01F7/04 ,  C01F1/00 ,  C02F1/52 ,  C02F5/08 ,  B01D21/01

    CPC分类号： C02F5/105 ,  C01F7/47 ,  C22B21/0015

    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。

    NOVEL APPROACH IN CONTROLLING DSP SCALE IN BAYER PROCESS
    3.
    发明申请
    NOVEL APPROACH IN CONTROLLING DSP SCALE IN BAYER PROCESS 有权
    在贝叶斯过程中控制DSP规模的新方法

    公开(公告)号：US20100254866A1

    公开(公告)日：2010-10-07

    申请号：US12418988

    申请日：2009-04-06

    申请人： Timothy La ,  Ji Cui ,  John D. Kildea ,  David H. Slinkman ,  Kim Richard Coleman

    发明人： Timothy La ,  Ji Cui ,  John D. Kildea ,  David H. Slinkman ,  Kim Richard Coleman

    IPC分类号： C01F7/20

    CPC分类号： C01F7/0606 ,  C01F7/47

    摘要： The invention provides a method of controlling silica in the liquor circuit of the Bayer process. The method involves addition of a promoter material to enhance the precipitation of DSP and includes adding one or more silica dispersion materials or dry silica forms to those parts of the circuit where precipitation of DSP and removal of silica from solution is desirable; for example the desilication stage of a Bayer process plant. The removal of DSP from solution reduces silica concentration in the liquor and thereby enables better control of process issues such as silica contamination in alumina product and DSP formation in later stages of the process where precipitation as scale onto vessel walls and equipment is problematical. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process.

    摘要翻译： 本发明提供了一种在拜耳法的液体回路中控制二氧化硅的方法。 该方法包括添加助催化剂材料以增强DSP的沉淀，并且包括向需要沉淀DSP并从溶液中除去二氧化硅的电路部分添加一种或多种二氧化硅分散体材料或干燥二氧化硅形式; 例如拜耳加工厂的脱硅阶段。 从溶液中除去DSP会降低液体中的二氧化硅浓度，从而可以更好地控制工艺问题，例如氧化铝产品中的二氧化硅污染和在过程中的后期阶段的DSP形成，其中沉淀作用在容器壁和设备上的沉淀是有问题的。 结果，本发明大大降低了操作拜耳工艺的总成本。

    Approach in controlling DSP scale in bayer process
    6.
    发明授权
    Approach in controlling DSP scale in bayer process 有权
    拜耳过程控制DSP规模的方法

    公开(公告)号：US08029752B2

    公开(公告)日：2011-10-04

    申请号：US12418988

    申请日：2009-04-06

    申请人： Timothy La ,  Ji Cui ,  John D. Kildea ,  David H Slinkman ,  Kim Richard Coleman

    发明人： Timothy La ,  Ji Cui ,  John D. Kildea ,  David H Slinkman ,  Kim Richard Coleman

    IPC分类号： C01B33/26

    CPC分类号： C01F7/0606 ,  C01F7/47

    摘要： The invention provides a method of controlling silica in the liquor circuit of the Bayer process. The method involves addition of a promoter material to enhance the precipitation of DSP and includes adding one or more silica dispersion materials or dry silica forms to those parts of the circuit where precipitation of DSP and removal of silica from solution is desirable; for example the desilication stage of a Bayer process plant. The removal of DSP from solution reduces silica concentration in the liquor and thereby enables better control of process issues such as silica contamination in alumina product and DSP formation in later stages of the process where precipitation as scale onto vessel walls and equipment is problematical. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process.

    摘要翻译： 本发明提供了一种在拜耳法的液体回路中控制二氧化硅的方法。 该方法包括添加助催化剂材料以增强DSP的沉淀，并且包括向需要沉淀DSP并从溶液中除去二氧化硅的电路部分添加一种或多种二氧化硅分散体材料或干燥二氧化硅形式; 例如拜耳加工厂的脱硅阶段。 从溶液中除去DSP会降低液体中的二氧化硅浓度，从而可以更好地控制工艺问题，例如氧化铝产品中的二氧化硅污染和在过程中的后期阶段的DSP形成，其中沉淀作用在容器壁和设备上的沉淀是有问题的。 结果，本发明大大降低了操作拜耳工艺的总成本。

    Organically modifid silica and use thereof
    9.
    发明申请
    Organically modifid silica and use thereof 有权
    有机二氧化硅及其用途

    公开(公告)号：US20070282122A1

    公开(公告)日：2007-12-06

    申请号：US11443515

    申请日：2006-05-30

    申请人： Brian T. Holland ,  Ji Cui ,  Timothy S. Keizer

    发明人： Brian T. Holland ,  Ji Cui ,  Timothy S. Keizer

    IPC分类号： C07F7/00

    CPC分类号： C07F7/1804 ,  C07B2200/11 ,  Y10T428/2982

    摘要： Organosilane-modified nanoparticles of silica, having a particle size of no more than 1 micron, in which the organosilane resides throughout the entire volume of the nanoparticles and not just at the surfaces of the nanoparticle. The nanoparticles may be in a colloidal solution. They may be prepared by hydrolyzing an alkali silicate under acidic conditions to obtain a silicic acid dispersion, followed by adding an organosilane having hydroxyl and/or hydrolyzable groups to the dispersion under acid conditions; and then raising the pH of the dispersion to at least eight to form the nanoparticles. They may be used in an effective paint primer/protective coating formulation.

    摘要翻译： 有机硅烷改性的二氧化硅纳米颗粒，其粒径不超过1微米，其中有机硅烷位于纳米颗粒的整个体积内，而不仅仅在纳米颗粒的表面。 纳米颗粒可以是胶体溶液。 它们可以通过在酸性条件下水解碱金属硅酸盐来获得硅酸分散体，然后在酸性条件下向分散体中加入具有羟基和/或可水解基团的有机硅烷来制备; 然后将分散体的pH提高至至少8以形成纳米颗粒。 它们可以用于有效的漆底漆/保护涂层制剂中。

    Natural Gas Adsorption Devices
    10.
    发明申请
    Natural Gas Adsorption Devices 有权
    天然气吸附装置

    公开(公告)号：US20130220479A1

    公开(公告)日：2013-08-29

    申请号：US13686050

    申请日：2012-11-27

    申请人： Nie Luo ,  Ji Cui ,  Lizhang Yang

    发明人： Nie Luo ,  Ji Cui ,  Lizhang Yang

    IPC分类号： F17C1/00 ,  F17C5/06

    CPC分类号： F17C1/00 ,  F17C5/06 ,  F17C11/007

    摘要： This disclosure relates to a natural gas absorption device that includes (1) at least one porous, flexible container that has an average pore diameter and is permeable to natural gas, (2) a natural gas absorption material at least partially disposed in the container, the material having a volume average diameter larger than the average pore diameter of the container, and (3) a storage tank having an opening, the tank enclosing the container and the natural gas absorption material.

    摘要翻译： 本公开涉及一种天然气吸收装置，其包括（1）至少一个具有平均孔径并且可天然气渗透的多孔柔性容器，（2）至少部分地设置在容器中的天然气吸收材料， 所述材料的体积平均直径大于所述容器的平均孔径，以及（3）具有开口的储罐，所述容器包围所述容器和所述天然气吸收材料。