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    DRY WATER SOLUBLE POLYMER PARTICLES
    1.
    发明申请
    DRY WATER SOLUBLE POLYMER PARTICLES 审中-公开
    干水溶性聚合物颗粒

    公开(公告)号：WO2016205504A3

    公开(公告)日：2017-01-26

    申请号：PCT/US2016037859

    申请日：2016-06-16

    申请人： WATER MARK TECH INC

    发明人： REILLY PHILLIP B JR ,  LOGSDON KIMBERLY S ,  REILLY PHILLIP B III

    IPC分类号： B29C67/00

    CPC分类号： C08J3/203 ,  C01F7/066 ,  C01F7/47 ,  C02F11/14 ,  C08J3/12 ,  C08J2333/02 ,  C08J2333/26 ,  C08K3/16 ,  C08K3/26 ,  C08K5/098 ,  C08K2003/162 ,  C08K2003/262 ,  C09K8/68 ,  C09K8/80

    摘要： A method of forming a micronized dry water soluble polymer particles is disclosed herein. In some embodiments, the method includes reducing a particle size of dry water soluble polymer (DWSP) particles; and forming micronized DWSP particles by mixing an additive with the DWSP particles at least one of prior to, during, or after the reduction of the particle size of the DWSP particles, wherein the DWSP is selected from the group consisting of a dry anionic, a dry cationic, a dry nonionic water soluble polymer, and mixtures thereof, wherein the additive is selected from the group consisting of an inorganic oxide, an inorganic hydroxide, an inorganic salt, an organic salt, an insoluble water absorbing material, and mixtures thereof, and wherein a mean particle size of the micronized DWSP particles ranges from about 1 to about 300 microns.

    摘要翻译： 本文公开了形成微粉化的干水溶性聚合物颗粒的方法。 在一些实施方案中，该方法包括减少干水溶性聚合物（DWSP）颗粒的粒度; 以及通过在DWSP颗粒的颗粒尺寸的减小之前，期间或之后的至少之一处混合添加剂与DWSP颗粒来形成微粉化DWSP颗粒，其中DWSP选自干阴离子， 干阳离子，干非离子水溶性聚合物及其混合物，其中添加剂选自无机氧化物，无机氢氧化物，无机盐，有机盐，不溶性吸水材料及其混合物， 并且其中所述微粉化DWSP颗粒的平均粒度为约1至约300微米。

    THE RECOVERY OF ALUMINA TRIHYDRATE DURING THE BAYER PROCESS USING CROSS-LINKED POLYSACCHARIDES
    4.
    发明申请
    THE RECOVERY OF ALUMINA TRIHYDRATE DURING THE BAYER PROCESS USING CROSS-LINKED POLYSACCHARIDES 审中-公开
    使用交联多糖在贝叶过程中恢复氧化铝三水合物

    公开(公告)号：WO2012021375A3

    公开(公告)日：2012-05-24

    申请号：PCT/US2011046579

    申请日：2011-08-04

    申请人： NALCO CO ,  WANG JING ,  BODE HEINRICH E ,  LI XIAOJIN HARRY

    发明人： WANG JING ,  BODE HEINRICH E ,  LI XIAOJIN HARRY

    IPC分类号： C01F7/06 ,  B01D21/01 ,  C01F7/47

    CPC分类号： C01F7/145 ,  C01F7/0653 ,  C01F7/148 ,  C01F7/47

    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。

    REDUCING ALUMINOSILICATE SCALE IN THE BAYER PROCESS
    5.
    发明申请
    REDUCING ALUMINOSILICATE SCALE IN THE BAYER PROCESS 审中-公开
    减少贝氏过程中的铝酸盐垢

    公开(公告)号：WO2011037873A3

    公开(公告)日：2011-09-15

    申请号：PCT/US2010049555

    申请日：2010-09-21

    申请人： NALCO CO ,  LA TIMOTHY ,  CUI JI ,  KILDEA JOHN D ,  SLINKMAN DAVID H

    发明人： LA TIMOTHY ,  CUI JI ,  KILDEA JOHN D ,  SLINKMAN DAVID H

    IPC分类号： C01F7/47 ,  C02F5/12 ,  C07F7/10

    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。 这些阻垢剂可降低DSP垢的形成，从而提高流体的通量，增加拜耳工艺设备可以运行的时间，减少对拜耳工艺设备昂贵且危险的酸洗液的需求。 因此，本发明大大降低了操作拜耳过程的总成本

    METHOD FOR CONTROLLING THE PRECIPITATION OF ALUMINA
    6.
    发明申请
    METHOD FOR CONTROLLING THE PRECIPITATION OF ALUMINA 审中-公开
    控制氧化铝降解的方法

    公开(公告)号：WO2009009824A1

    公开(公告)日：2009-01-22

    申请号：PCT/AU2008/001025

    申请日：2008-07-11

    申请人： ALCOA OF AUSTRALIA LIMITED ,  BESIDA, John ,  DELMAU, Lætitia, Hélène ,  MOYER, Bruce, April

    发明人： BESIDA, John ,  DELMAU, Lætitia, Hélène ,  MOYER, Bruce, April

    IPC分类号： C01F7/02 ,  C01F7/47

    CPC分类号： C01F7/47 ,  C01F7/144

    摘要： A method for controlling the precipitation of alumina from a Bayer process solution, the method comprising the steps of: contacting the Bayer process solution with a solid support comprising an extractant, wherein the solid support is substantially water insoluble; removing sodium ions from the Bayer process solution; reducing the concentration of hydroxide ions in the Bayer process solution; and precipitating alumina in the Bayer process solution.

    摘要翻译： 一种控制拜耳法溶液沉淀氧化铝的方法，该方法包括以下步骤：使拜耳法处理溶液与包含萃取剂的固体载体接触，其中固体载体基本上不溶于水; 从拜耳工艺溶液中除去钠离子; 降低Bayer工艺溶液中氢氧根离子的浓度; 并在拜耳法溶液中沉淀氧化铝。

    PROCESS FOR FILTERING SODIUM ALUMINATE SOLUTION CONTAINING SOLID IMPURITIES
    8.
    发明申请
    PROCESS FOR FILTERING SODIUM ALUMINATE SOLUTION CONTAINING SOLID IMPURITIES 审中-公开
    过滤含有固体污染物的铝酸钠溶液

    公开(公告)号：WO2005007575A1

    公开(公告)日：2005-01-27

    申请号：PCT/KR2003/002813

    申请日：2003-12-23

    申请人： KC CORPORATION ,  LEE, Sung-Oh ,  OH, Chi-Jung ,  BAE, Hyeon-Cheol ,  SHIN, Gwang-Hee

    发明人： LEE, Sung-Oh ,  OH, Chi-Jung ,  BAE, Hyeon-Cheol ,  SHIN, Gwang-Hee

    IPC分类号： C01F7/04

    CPC分类号： C01F7/47

    摘要： The present invention relates to a process for filtering a strongly alkaline solution of at a high temperature, particularly a sodium aluminate solution (NaAl(OH) 4 ) to remove solid impurities therefrom in an environmental-friendly and efficient manner, which comprises feeding the sodium aluminate solution containing solid impurities to a porous ceramic micron filter to filter said solution under an applied pressure; collecting the filtrate and storing a portion of the filtrate in a storage tank; and discharging the retentate from the ceramic micron filter.

    摘要翻译： 本发明涉及一种在高温下过滤强碱性溶液，特别是铝酸钠溶液（NaAl（OH）4）以从环境友好而有效地除去固体杂质的方法，其包括将钠 含有固体杂质的铝酸盐溶液到多孔陶瓷微米过滤器以在施加的压力下过滤所述溶液; 收集滤液并将一部分滤液储存在储罐中; 并从陶瓷微米过滤器中排出滞留物。

    NOVEL APPROACH IN CONTROLLING DSP SCALE IN THE BAYER PROCESS
    10.
    发明申请
    NOVEL APPROACH IN CONTROLLING DSP SCALE IN THE BAYER PROCESS 审中-公开
    在贝叶斯过程中控制DSP规模的新方法

    公开(公告)号：WO2010117949A2

    公开(公告)日：2010-10-14

    申请号：PCT/US2010/029968

    申请日：2010-04-05

    申请人： NALCO COMPANY ,  LA, Timothy ,  CUI, Ji ,  KILDEA, John D. ,  SLINKMAN, David H. ,  COLEMAN, Kim Richard

    发明人： LA, Timothy ,  CUI, Ji ,  KILDEA, John D. ,  SLINKMAN, David H. ,  COLEMAN, Kim Richard

    IPC分类号： C01F7/06

    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方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物和过程后期阶段的DSP形成，其中沉淀作为鳞片沉积到容器壁和设备上是有问题的。 因此，本发明大大降低了操作拜耳过程的总成本。