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。

    RECOVERY OF ALUMINA TRIHYDRATE DURING THE BAYER PROCESS USING CROSS-LINKED POLYSACCHARIDES
    2.
    发明申请
    RECOVERY OF ALUMINA TRIHYDRATE DURING THE BAYER PROCESS USING CROSS-LINKED POLYSACCHARIDES 有权
    使用交联多糖在贝叶过程中恢复三氧化二铝

    公开(公告)号:US20120034142A1

    公开(公告)日:2012-02-09

    申请号:US12852910

    申请日:2010-08-09

    IPC分类号: C22B21/00 C01F7/14

    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 cross-linked polysaccharides
    3.
    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
    4.
    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。

    Production and composition of glycerol based polyols
    5.
    发明授权
    Production and composition of glycerol based polyols 有权
    甘油基多元醇的生产和组成

    公开(公告)号:US09290620B2

    公开(公告)日:2016-03-22

    申请号:US12582827

    申请日:2009-10-21

    摘要: The invention provides a method of efficiently producing branched, cyclic glycerol-based polyols with a co-product as anti-biodegrading agent from inexpensive readily available glycerol monomer. The method involves polymerizing glycerol or glycerol with at least another monomer to multiple other monomers in the presence of particular amount of a strong base as the catalyst under a particular distillation environment. The polyol produced by the inventive method is beneficial of reducing scales in Bayer liquid for aluminum production process and improving brightness of coated paper substrates without greening effect.

    摘要翻译: 本发明提供了一种有效生产支链环状基于甘油的多元醇的方法,该多元醇具有由廉价容易获得的甘油单体作为抗生物降解剂的副产物。 该方法包括在特定蒸馏环境下,在特定量的强碱作为催化剂的存在下,将甘油或甘油与至少另一种单体聚合成多种其它单体。 通过本发明方法生产的多元醇有利于减少用于铝生产工艺的拜耳液体中的垢,并改善涂布纸基材的亮度,而不会产生绿化效果。

    RECOVERY OF ALUMINA TRIHYDRATE DURING THE BAYER PROCESS USING SCLEROGLUCAN
    6.
    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:US20120305837A1

    公开(公告)日:2012-12-06

    申请号:US13586025

    申请日:2012-08-15

    IPC分类号: C09K3/00

    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。

    Recovery of alumina trihydrate during the bayer process using scleroglucan
    7.
    发明授权
    Recovery of alumina trihydrate during the bayer process using scleroglucan 有权
    在拜耳过程中使用硬葡聚糖回收三水合氧化铝

    公开(公告)号:US08252266B2

    公开(公告)日:2012-08-28

    申请号:US12852917

    申请日:2010-08-09

    IPC分类号: C01F7/02 B01D21/01

    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。

    PRODUCTION AND COMPOSITION OF GLYCEROL BASED POLYOLS
    8.
    发明申请
    PRODUCTION AND COMPOSITION OF GLYCEROL BASED POLYOLS 有权
    基于甘油的聚合物的生产和组合

    公开(公告)号:US20110092743A1

    公开(公告)日:2011-04-21

    申请号:US12582827

    申请日:2009-10-21

    IPC分类号: C07C41/18

    摘要: The invention provides a method of efficiently producing branched, cyclic glycerol-based polyols with a co-product as anti-biodegrading agent from inexpensive readily available glycerol monomer. The method involves polymerizing glycerol or glycerol with at least another monomer to multiple other monomers in the presence of particular amount of a strong base as the catalyst under a particular distillation environment. The polyol produced by the inventive method is beneficial of reducing scales in Bayer liquid for aluminum production process and improving brightness of coated paper substrates without greening effect.

    摘要翻译: 本发明提供了一种有效生产支链环状基于甘油的多元醇的方法,该多元醇具有由廉价容易获得的甘油单体作为抗生物降解剂的副产物。 该方法包括在特定蒸馏环境下,在特定量的强碱作为催化剂的存在下,将甘油或甘油与至少另一种单体聚合成多种其它单体。 通过本发明方法生产的多元醇有利于减少用于铝生产工艺的拜耳液体中的垢,并改善涂布纸基材的亮度,而不会产生绿化效果。

    METHOD FOR IMPROVING THE PERFORMANCE OF OPTICAL BRIGHTENING AGENTS
    10.
    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。