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1. 发明申请

WO2012021342A2 THE RECOVERY OF ALUMINA TRIHYDRATE DURING THE BAYER PROCESS USING SCLEROGLUCAN 审中-公开
标题翻译：利用螺旋藻回收硼酸盐过程中的三水氧化铝
公开(公告)号：WO2012021342A2
公开(公告)日：2012-02-16
申请号：PCT/US2011046352
申请日：2011-08-03
申请人： NALCO CO , CHESTER RYAN TRAVIS , KILDEA JOHN D , WANG JING , BODE HEINRICH E , LI XIAOJIN HARRY
发明人： CHESTER RYAN TRAVIS , KILDEA JOHN D , WANG JING , BODE HEINRICH E , LI XIAOJIN HARRY
IPC分类号： C01F7/06 , B01D21/01 , C01F7/47
CPC分类号： C01F7/145 , C01F7/148
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：本发明提供了用于改善氧化铝生产的方法和组合物。本发明涉及将包含一种或多种多糖的产品添加到生产过程的流体回路内的液体中，其中多糖之一是硬葡聚糖。硬葡聚糖的使用可赋予许多优点，包括至少一些：更高的絮凝效力，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。

2. 发明申请

WO2011002952A2 A COMPOSITION AND METHOD FOR ENHANCING THE PRODUCTION OF CRYSTAL AGGLOMERATES FROM A PRECIPITATION LIQUOR 审中-公开
标题翻译：一种用于从降解液中增强晶体聚集体生成的组合物和方法
公开(公告)号：WO2011002952A2
公开(公告)日：2011-01-06
申请号：PCT/US2010040697
申请日：2010-07-01
申请人： NALCO CO , KOUZNETSOV DMITRI L , LIU JIANJUN , COLEMAN KIM RICHARD , CHESTER RYAN TRAVIS , KILDEA JOHN D
发明人： KOUZNETSOV DMITRI L , LIU JIANJUN , COLEMAN KIM RICHARD , CHESTER RYAN TRAVIS , KILDEA JOHN D
IPC分类号： C01F7/02 , C01B13/36 , C01F7/34 , C01F7/46
CPC分类号： C01F7/145 , B01D9/005 , C01F7/08
摘要： The present invention relates ways to increase the output of a high quality product from the precipitation liquor crystallization process exemplified through the aluminum hydroxide recovery processes such as the Bayer process. The invention is a method of increasing the size of precipitated of a liquor. The invention in one embodiment relates to the use of a crystal growth modifier compositions added to the precipitation process to increase the particle size distribution of the precipitated alumina trihydrate.
摘要翻译：本发明涉及通过例如拜耳法等氢氧化铝回收方法例示的沉淀液结晶方法来提高高质量产品的输出的方法。本发明是增加液体沉淀物的尺寸的方法。在一个实施方案中的本发明涉及使用沉淀方法中加入的晶体生长改性剂组合物来增加沉淀的三水合氧化铝的粒度分布。

3. 发明申请

WO2010117949A3 APPROACH IN CONTROLLING DSP SCALE IN THE BAYER PROCESS 审中-公开
标题翻译：在贝叶斯过程中控制DSP尺度的方法
公开(公告)号：WO2010117949A3
公开(公告)日：2010-12-16
申请号：PCT/US2010029968
申请日：2010-04-05
申请人： NALCO CO , 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 , C01F7/47
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和在过程中的后期阶段的DSP形成，其中沉淀作用在容器壁和设备上的沉淀是有问题的。结果，本发明大大降低了操作拜耳工艺的总成本。

4. 发明申请

WO2012115769A3 REDUCING ALUMINOSILICATE SCALE IN THE BAYER PROCESS 审中-公开
标题翻译：减少贝氏过程中的铝酸盐垢
公开(公告)号：WO2012115769A3
公开(公告)日：2012-10-18
申请号：PCT/US2012024099
申请日：2012-02-07
申请人： NALCO CO , LA TIMOTHY , KILDEA JOHN D , O'BRIEN KEVIN L , PHILLIPS EVERETT C , SAWANT KAILAS B , SLINKMAN DAVID H , SWIECINSKI FREDERICK J , CUI JI
发明人： LA TIMOTHY , KILDEA JOHN D , O'BRIEN KEVIN L , PHILLIPS EVERETT C , SAWANT KAILAS B , SLINKMAN DAVID H , SWIECINSKI FREDERICK J , CUI JI
IPC分类号： C07F7/10 , B01D21/01
CPC分类号： C01F7/47
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

5. 发明申请

WO2011037873A3 REDUCING ALUMINOSILICATE SCALE IN THE BAYER PROCESS 审中-公开
标题翻译：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

6. 发明申请

WO2004076510A3 HIGH MOLECULAR WEIGHT POLYMERS CONTAINING PENDENT SALICYCLIC ACID GROUPS FOR CLARIFYING BAYER PROCESS LIQUORS 审中-公开
标题翻译：含分子量级聚合物的高分子量聚合物，用于澄清贝氏体工艺液体
公开(公告)号：WO2004076510A3
公开(公告)日：2005-09-09
申请号：PCT/US2004004004
申请日：2004-02-11
申请人： NALCO CO
发明人： QUADIR MURAT , PHILLIPS EVERETT C , BRAMMER LARRY E JR , MAHONEY ROBERT P , KILDEA JOHN D , RAMESH MANIAN , MALITO JOHN T
IPC分类号： B01D21/01 , C01F7/06 , C01F7/47 , C02F1/52 , C02F1/56 , C08F220/58 , C08F246/00 , C08G67/02 , C08F20/10 , C08F118/16 , C08F120/54 , C08F120/58 , C08F122/10 , C08F220/10 , C08F220/68
CPC分类号： C02F1/5272 , B01D21/01 , C01F7/0653 , C01F7/47 , C02F1/56 , C02F2103/10 , C02F2103/16 , C08F220/58 , C08F246/00 , C08F220/06 , C08F220/14 , C08F220/18
摘要： A high molecular weight, water-soluble polymer comprising pendant salicylic acid groups and having a weight average molecular weight of at least about 2,000,000 daltons and use of the polymer for clarifying red mud-containing liquors generated in the Bayer process for the recovery of alumina from bauxite.
摘要翻译：一种高分子量的水溶性聚合物，其包含侧基水杨酸基团并且具有至少约2,000,000道尔顿的重均分子量，并且使用该聚合物来澄清在拜耳法中产生的含红泥的液体以从铝土矿。

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