利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

17 条记录 (耗时 0.032 秒)

    Reducing aluminosilicate scale in the bayer process
    3.
    发明授权
    Reducing aluminosilicate scale in the bayer process 有权
    在拜耳法中减少铝硅酸盐垢

    公开(公告)号：US09487408B2

    公开(公告)日：2016-11-08

    申请号：US13403282

    申请日：2012-02-23

    申请人： Everett C. Phillips ,  Timothy La ,  Kailas B. Sawant

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

    IPC分类号： C01F7/02 ,  C01F7/47 ,  C01F7/06

    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。

    REDUCING ALUMINOSILICATE SCALE IN THE BAYER PROCESS
    4.
    发明申请
    REDUCING ALUMINOSILICATE SCALE IN THE BAYER PROCESS 有权
    减少贝氏过程中的铝酸盐垢

    公开(公告)号：US20120148462A1

    公开(公告)日：2012-06-14

    申请号：US13403282

    申请日：2012-02-23

    申请人： Everett C. Phillips ,  Timothy La ,  Kailas B. Sawant

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

    IPC分类号： C01F7/02

    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。

    PROCESS FOR PREPARING NUCLEOSIDE ANALOGS
    5.
    发明申请
    PROCESS FOR PREPARING NUCLEOSIDE ANALOGS 审中-公开
    制备核苷类似物的方法

    公开(公告)号：US20090247750A1

    公开(公告)日：2009-10-01

    申请号：US12413119

    申请日：2009-03-27

    申请人： Pravin L. Kotian ,  Kailas B. Sawant ,  Pooran Chand

    发明人： Pravin L. Kotian ,  Kailas B. Sawant ,  Pooran Chand

    IPC分类号： C07D487/04

    CPC分类号： C07D487/04

    摘要： The invention provides an improved method for preparing a compound of formula 2: that is useful to treat diseases wherein it is desirable to inhibit purine nucleoside phosphorylases or nucleoside hydrolases (e.g., parasitic infections, inflammatory disorders, etc.).

    摘要翻译： 本发明提供了制备式2化合物的改进方法：其可用于治疗其中期望抑制嘌呤核苷磷酸酶或核苷水解酶（例如寄生虫感染，炎症性疾病等）的疾病。

    Continuous production of DMAEA quaternary salts
    7.
    发明授权
    Continuous production of DMAEA quaternary salts 有权
    连续生产DMAEA季盐

    公开(公告)号：US08247597B2

    公开(公告)日：2012-08-21

    申请号：US12691159

    申请日：2010-01-21

    申请人： Barbara E. Fair ,  Peter E. Reed ,  Leonard M. Ver Vers ,  Larry E. Brammer, Jr. ,  Charles J. Holada ,  Cheng-Sung Huang ,  Kailas B. Sawant

    发明人： Barbara E. Fair ,  Peter E. Reed ,  Leonard M. Ver Vers ,  Larry E. Brammer, Jr. ,  Charles J. Holada ,  Cheng-Sung Huang ,  Kailas B. Sawant

    IPC分类号： C07C69/52

    CPC分类号： C07C213/08 ,  C07C219/08

    摘要： The invention provides a method of continuously producing high quality quaternized N,N-dialkylaminoethyl (meth)acrylates (DMAEA.MCQ) that has a long shelf life and which is stable in water. The method involves placing starting materials into a continuously stirred tank reactor in the presence of less than 6% water. This low amount of water causes two liquid phases to form and prevents unwanted side reactions. The denser liquid phase contains DMAEA.MCQ and the lighter phase contains the starting materials. Liquid from the denser phase is removed from a position where little of the lighter phase has been mixed in. The removed liquid then has any last traces of the starting materials reacted into DMAEA.MCQ and strips away any starting materials with a gas flow. The resulting liquid is high purity DMAEA.MCQ. Water can then safely be added to ease in the transport and use of the produced DMAEA.MCQ.

    摘要翻译： 本发明提供了一种连续生产高效季铵化N（N-二烷基氨基乙基（甲基）丙烯酸酯（DMAEA.MCQ））的方法，其具有长的保质期，并且在水中稳定。 该方法包括在少于6％的水的存在下将原料放入连续搅拌的罐式反应器中。 这种少量的水导致形成两个液相并防止不期望的副反应。 密度较高的液相含有DMAEA.MCQ，较浅的相含有原料。 来自较稠相的液体从少量较轻相混合的位置被除去。然后，除去的液体具有反应成DMAEA.MCQ的起始材料的任何最后痕迹，并用气流剥离任何起始材料。 所得液体为高纯度DMAEA.MCQ。 然后可以安全地加入水，以便于运输和使用生产的DMAEA.MCQ。