Recovery of alumina trihydrate during the Bayer process using scleroglucan
    1.
    发明授权
    Recovery of alumina trihydrate during the Bayer process using scleroglucan 有权
    在拜耳法中使用硬葡聚糖回收三水合氧化铝

    公开(公告)号:US08394290B2

    公开(公告)日:2013-03-12

    申请号:US13586025

    申请日:2012-08-15

    CPC分类号: C01F7/145 C01F7/148

    摘要: The invention provides methods and compositions for improving the production of alumina. The invention involves adding a product containing one or more polysaccharides to liquor within the fluid circuit of the production process, where one of the polysaccharides is scleroglucan. The use of scleroglucan can impart a number of advantages including at least some of: greater flocculation effectiveness, increasing the maximum effective dosage, faster settling rate. The production process can be a Bayer process.

    摘要翻译: 本发明提供了改善氧化铝生产的方法和组合物。 本发明涉及将含有一种或多种多糖的产品加入到生产过程的流体回路内的液体中,其中一种多糖是硬葡聚糖。 使用硬葡聚糖可以具有许多优点,包括以下至少一些:更大的絮凝效果,增加最大有效剂量,更快的沉降速率。 生产过程可以是拜耳过程。

    METHOD FOR IMPROVING THE PERFORMANCE OF OPTICAL BRIGHTENING AGENTS
    2.
    发明申请
    METHOD FOR IMPROVING THE PERFORMANCE OF OPTICAL BRIGHTENING AGENTS 审中-公开
    改善光学增强剂性能的方法

    公开(公告)号:US20110008637A1

    公开(公告)日:2011-01-13

    申请号:US12499916

    申请日:2009-07-09

    IPC分类号: B32B29/00

    摘要: The invention provides a more effective optical brightener composition for coating paper substrates. The invention includes an optical brightening agent (OBA) and a glycerol based polymer. This combination results in a composition that provides a surprisingly large whitening effect and does not degrade the shade of the paper. As a result extremely high degrees of whiteness can be achieved without being frustrated by the greening effect.

    摘要翻译: 本发明提供了一种用于涂布纸基材的更有效的荧光增白剂组合物。 本发明包括光学增亮剂(OBA)和基于甘油的聚合物。 这种组合导致组合物提供惊人的大的美白效果并且不会降低纸张的色调。 因此,可以实现非常高的白度,而不会受到绿化效果的挫败。

    Lipohydrophilic glycerol based polymers as digestion aids for improving wood pulping processes
    4.
    发明授权
    Lipohydrophilic glycerol based polymers as digestion aids for improving wood pulping processes 有权
    亲水性亲油甘油基聚合物作为改进木材制浆工艺的消化助剂

    公开(公告)号:US08366877B2

    公开(公告)日:2013-02-05

    申请号:US12720973

    申请日:2010-03-10

    IPC分类号: D21C3/00 D21C3/26

    CPC分类号: D21C3/222 D21C3/02

    摘要: The invention provides a method of improving the digestion of wood chips into pulp. The method involves: adding a liphohydrophilic glycerol-based polymer additive to a solution used in the digestion process. This additive is unexpectedly effective at facilitating digestion. The branched and ether structure of the additive allows it to withstand the harsh nature of a highly alkaline environment. In addition, it is more soluble in high pH than other surfactants. The structure, resistance, and particular balance between hydrophobic and hydrophilic regions, causes the additive to increases the interaction between the wood chips and the digestion chemicals. This in turn reduces the costs, the amount of additive needed, and the amount of reject wood chunks that result from the digestion process.

    摘要翻译: 本发明提供了一种改善木屑进入纸浆的消化方法。 该方法涉及:将一种亲水基亲油甘油基聚合物添加剂加入到消化过程中使用的溶液中。 这种添加剂在促进消化方面出人意料地有效。 添加剂的支链和醚结构使其能够承受高碱性环境的苛刻性质。 此外,它比其他表面活性剂更易溶于高pH。 疏水和亲水区域之间的结构,电阻和特殊的平衡导致添加剂增加了木片与消化化学物质之间的相互作用。 这又降低了成本,所需添加剂的量以及消化过程产生的拒收木块的量。

    Recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides
    5.
    发明授权
    Recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides 有权
    在拜耳法中使用交联多糖回收三水合氧化铝

    公开(公告)号:US08298508B2

    公开(公告)日:2012-10-30

    申请号:US12852910

    申请日:2010-08-09

    IPC分类号: C01F7/02 C01F7/04

    摘要: The invention provides methods and compositions for improving the production of alumina hydrate. The invention involves adding one or more polysaccharides to liquor or slurry in the fluid circuit of the production process. The one or more polysaccharides can be a cross-linked polysaccharide (such as cross-linked dextran or cross-linked dihydroxypropyl cellulose). The various polysaccharides can impart a number of advantages including at least some of: greater flocculation effectiveness, increasing the maximum effective dosage, faster settling rate. The production process can be a Bayer process.

    摘要翻译: 本发明提供了改善水合氧化铝生产的方法和组合物。 本发明涉及在生产过程的流体回路中向液体或浆料中加入一种或多种多糖。 一种或多种多糖可以是交联的多糖(例如交联的葡聚糖或交联的二羟丙基纤维素)。 各种多糖可以赋予许多优点,包括以下至少一些:更大的絮凝效果,增加最大有效剂量,更快的沉降速率。 生产过程可以是拜耳过程。

    RECOVERY OF ALUMINA TRIHYDRATE DURING THE BAYER PROCESS USING SCLEROGLUCAN
    7.
    发明申请
    RECOVERY OF ALUMINA TRIHYDRATE DURING THE BAYER PROCESS USING SCLEROGLUCAN 有权
    使用SCLEROGLUCAN在贝叶过程中恢复氧化铝三水合物

    公开(公告)号:US20120034143A1

    公开(公告)日:2012-02-09

    申请号:US12852917

    申请日:2010-08-09

    IPC分类号: C22B21/00 C01F7/14

    CPC分类号: C01F7/145 C01F7/148

    摘要: The invention provides methods and compositions for improving the production of alumina. The invention involves adding a product containing one or more polysaccharides to liquor within the fluid circuit of the production process, where one of the polysaccharides is scieroglucan. The use of scleroglucan can impart a number of advantages including at least some of: greater flocculation effectiveness, increasing the maximum effective dosage, faster settling rate. The production process can be a Bayer process.

    摘要翻译: 本发明提供了改善氧化铝生产的方法和组合物。 本发明涉及将含有一种或多种多糖的产品加入到生产过程的流体回路内的液体中,其中一种多糖是葡聚糖。 使用硬葡聚糖可以具有许多优点,包括以下至少一些:更大的絮凝效果,增加最大有效剂量,更快的沉降速率。 生产过程可以是拜耳过程。

    Modifying agent for yankee coatings
    10.
    发明授权
    Modifying agent for yankee coatings 有权
    yankee涂料改性剂

    公开(公告)号:US08101045B2

    公开(公告)日:2012-01-24

    申请号:US12652059

    申请日:2010-01-05

    IPC分类号: B31F1/12

    摘要: The invention provides a composition of matter useful for producing very soft high grades of tissue paper. The composition of matter comprises an adhesive composition that includes a glycerol-based polyol. The glycerol-based polyol prevents the composition from becoming brittle and is non-volatile. This allows the composition to become rewetted after creping and allows for strong levels of adhesion even at high temperatures.

    摘要翻译: 本发明提供了用于生产非常柔软的高等级的薄纸的物质组合物。 物质的组成包括含有甘油基多元醇的粘合剂组合物。 基于甘油的多元醇防止组合物变脆并且是非挥发性的。 这使得组合物在起皱后再润湿,并且即使在高温下也允许强烈的粘合水平。