Bayer liquor polishing
    21.
    发明授权
    Bayer liquor polishing 失效
    拜耳酒抛光

    公开(公告)号:US5387405A

    公开(公告)日:1995-02-07

    申请号:US82145

    申请日:1993-06-24

    摘要: A secondary polishing process for Bayer Process liquors suspension is described. The polishing process uses a combination of bio-polymers, particularly such bio-carbohydrates as dextran, with an inert insoluble solid, such as a filter aid, to treat the primary red mud settler overflow, then clarifying these treated overflow liquors in a secondary clarifier. Results provide for from 0-20 milligrams per liter suspended solids, often from 0-5 ppm suspended solids, and may make sand filter or Kelly filter operation an option in the Bayer Process.

    摘要翻译: 描述了拜耳工艺液体悬浮液的二次抛光工艺。 抛光过程使用生物聚合物,特别是葡聚糖等生物碳水化合物与惰性不溶性固体如助滤剂的组合来处理初级红泥沉降器溢流,然后在二级澄清池中澄清这些处理的溢流液 。 结果可提供每升0-20毫克悬浮固体,通常为0-5 ppm悬浮固体,并可在拜耳工艺中制作砂滤器或凯利过滤器操作。

    Cartridge for extending the lifetime of dyes in dye lasers
    22.
    发明授权
    Cartridge for extending the lifetime of dyes in dye lasers 失效
    用于延长染色体活性染料寿命的墨盒

    公开(公告)号:US5087388A

    公开(公告)日:1992-02-11

    申请号:US484533

    申请日:1990-02-26

    IPC分类号: H01S3/02 H01S3/213

    CPC分类号: H01S3/213 H01S3/022

    摘要: A method for releasing trialkylamines into the dye circulation stream of a dye laser and a filter cartridge containing a resin bound anion stabilizing agent for insertion into the dye circulation stream of a dye laser improves the performance thereof, especially with respect to excimer and flashlamp pumped coumarin and carbostyryl dye lasers. The resin bears quaternary ammonium groups, and borohydride, bromide, hudroxide or chloride may be used as the counter ion. A resin bound borohydride stabilizing agent is capable of releasing trialkylamine into the dye circulation stream and reducing the carbonyl functional groups of polyarbonyl material in the stream to less light absorbing alcohol functional groups. A resin bound chloride stabilizing agent is capable of releasing trialkylamine into the dye circulation stream as a quencher and radical scavenger.

    摘要翻译: 将三烷基胺释放到染料激光器的染料循环流中的方法和含有树脂结合的阴离子稳定剂的滤筒用于插入染料激光器的染料循环流中的方法改善了其性能,特别是关于受激准分子和闪光灯泵抽香豆素 和喹诺酮染料激光。 树脂带有季铵基,可以使用硼氢化物,溴化物,四氢呋喃或氯化物作为抗衡离子。 树脂结合的硼氢化钠稳定剂能够将三烷基胺释放到染料循环流中,并将该流中的聚羰基物质的羰基官能团还原成较少的光吸收性醇官能团。 树脂结合氯化物稳定剂能够作为猝灭剂和自由基清除剂将三烷基胺释放到染料循环流中。

    Hydroxymethyl diphosphonated polyacrylates for red mud treatment
    24.
    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 containing phosphonic acid groups for the treatment of red mud
in the Bayer process
    25.
    发明授权
    Polymers containing phosphonic acid groups for the treatment of red mud in the Bayer process 失效
    含有膦酸基团的聚合物用于拜耳法处理红泥

    公开(公告)号:US5534235A

    公开(公告)日:1996-07-09

    申请号:US523993

    申请日:1995-09-05

    IPC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 phosphonic 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。 改进之处在于,除了常规的絮凝剂外,还向含红泥的液体中加入任选的膦酸聚合物。 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。

    SYSTEM, METHODS, PROCESSES AND APPARATUS FOR REMOVING FINELY DISPERSED PARTICULATE MATTER FROM A FLUID STREAM
    30.
    发明申请
    SYSTEM, METHODS, PROCESSES AND APPARATUS FOR REMOVING FINELY DISPERSED PARTICULATE MATTER FROM A FLUID STREAM 有权
    系统,方法,从流体流中移除细分散颗粒物的方法和装置

    公开(公告)号:US20110094970A1

    公开(公告)日:2011-04-28

    申请号:US12846021

    申请日:2010-07-29

    IPC分类号: B01D21/01 B01D21/02 B01D21/26

    摘要: Disclosed herein are systems and methods for removing fine particulate matter from a fluid, comprising a separator that separates an inflow fluid stream into an overflow fluid path and an underflow fluid path, where the underflow fluid path is treated with a tethering material that attaches to the coarse particulate matter to form tether-bearing anchor particles and where the overflow fluid path is treated with an activating material so that the activating material interacts with the fine particulate matter to form activated particles. After these treatments, the underflow fluid path containing the tether-bearing anchor particles is comingled with the overflow fluid path containing the activated particles, so that a removable complex is produced that can be removed in a settling facility, thereby removing the fine particulate matter from the fluid. The systems and methods are particularly advantageous for removing particulate matter from a fluid waste stream following mining or ore processing operations, such as oil sands mining or processing.

    摘要翻译: 本文公开了用于从流体中除去细颗粒物质的系统和方法,包括将流入流体流分离成溢流流体路径和下溢流体路径的分离器,其中下溢流体路径用连接至 粗颗粒物以形成带束锚固颗粒,并且其中溢流体路径用活化材料处理,使得活化材料与细颗粒物质相互作用以形成活化颗粒。 在这些处理之后,含有带束缚锚定颗粒的下溢流体路径与含有活化颗粒的溢流流体路线一起流出,从而产生可在沉降设备中除去的可去除的复合物,从而从 流体。 这些系统和方法特别有利于在采矿或矿石加工操作(例如油砂开采或加工)之后从流体废物流中除去颗粒物质。