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1. 发明授权

US08029752B2 Approach in controlling DSP scale in bayer process 有权
标题翻译：拜耳过程控制DSP规模的方法
公开(公告)号：US08029752B2
公开(公告)日：2011-10-04
申请号：US12418988
申请日：2009-04-06
申请人： Timothy La , Ji Cui , John D. Kildea , David H Slinkman , Kim Richard Coleman
发明人： Timothy La , Ji Cui , John D. Kildea , David H Slinkman , Kim Richard Coleman
IPC分类号： C01B33/26
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。

2. 发明授权

US06527959B1 Method of clarifying bayer process liquors using salicylic acid containing polymers 失效
标题翻译：使用含水杨酸聚合物澄清拜耳处理液的方法
公开(公告)号：US06527959B1
公开(公告)日：2003-03-04
申请号：US09771844
申请日：2001-01-29
申请人： Murat Quadir , Everett C. Phillips , Larry E. Brammer, Jr. , Robert P. Mahoney , John D Kildea , Manian Ramesh , John T. Malito
发明人： Murat Quadir , Everett C. Phillips , Larry E. Brammer, Jr. , Robert P. Mahoney , John D Kildea , Manian Ramesh , John T. Malito
IPC分类号： B01D2101
CPC分类号： C01F7/47 , B01D21/01 , C01F7/0653
摘要： A method of flocculating suspended solids in a Bayer process liquor comprising adding to the liquor an effective amount of a polymer comprising salicylic acid groups.
摘要翻译：一种在拜耳法溶液中絮凝悬浮固体的方法，包括向该液体中加入有效量的包含水杨酸基团的聚合物。

3. 发明授权

US5385586A Liquor oxalate stabilizers 失效
标题翻译：酒草酸盐稳定剂
公开(公告)号：US5385586A
公开(公告)日：1995-01-31
申请号：US214928
申请日：1994-03-17
申请人： Graeme J. Farquharson , John D. Kildea , Anthony E. Gross , Stephen C. Grocott
发明人： Graeme J. Farquharson , John D. Kildea , Anthony E. Gross , Stephen C. Grocott
IPC分类号： C01F7/14 , C01F7/47 , C01F7/34
CPC分类号： C01F7/473 , C01F7/145
摘要： A method for inhibiting the precipitation of sodium oxalate crystals in a Bayer process liquor. The method comprises the step of adding to the Bayer process liquor, after red mud separation and immediately prior to crystallization of alumina trihydrate, or during crystallization of alumina trihydrate, or during classification of alumina trihydrate, an effective amount of a cationic, surface active, alkylammonium salt compound.
摘要翻译：一种抑制拜耳法处理液中草酸钠晶体析出的方法。该方法包括以下步骤：在红泥分离之后立即在三水合氧化铝结晶之前或在三水合氧化铝结晶期间，或在三水合氧化铝分级期间，将有效量的阳离子表面活性剂，烷基铵盐化合物。

4. 发明授权

US08545776B2 Reducing aluminosilicate scale in the Bayer process 有权
标题翻译：在拜耳工艺中减少铝硅酸盐垢
公开(公告)号：US08545776B2
公开(公告)日：2013-10-01
申请号：US12567116
申请日：2009-09-25
申请人： Timothy La , Ji Cui , John D. Kildea , David H. Slinkman
发明人： Timothy La , Ji Cui , John D. Kildea , David H. Slinkman
IPC分类号： C01F7/04 , C01F1/00 , C02F1/52 , C02F5/08 , B01D21/01
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

US20110212006A1 REDUCING ALUMINOSILICATE SCALE IN THE BAYER PROCESS 有权
标题翻译：减少贝氏过程中的铝酸盐垢
公开(公告)号：US20110212006A1
公开(公告)日：2011-09-01
申请号：US13035124
申请日：2011-02-25
申请人： Timothy La , John D. Kildea , Kevin L. O'Brien , Everett C. Phillips , Kailas B. Sawant , David H. Slinkman , Frederick J. Swiecinski , Ji Cui
发明人： Timothy La , John D. Kildea , Kevin L. O'Brien , Everett C. Phillips , Kailas B. Sawant , David H. Slinkman , Frederick J. Swiecinski , Ji Cui
IPC分类号： C01F7/02
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，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。

6. 发明申请

US20100254866A1 NOVEL APPROACH IN CONTROLLING DSP SCALE IN BAYER PROCESS 有权
标题翻译：在贝叶斯过程中控制DSP规模的新方法
公开(公告)号：US20100254866A1
公开(公告)日：2010-10-07
申请号：US12418988
申请日：2009-04-06
申请人： Timothy La , Ji Cui , John D. Kildea , David H. Slinkman , Kim Richard Coleman
发明人： Timothy La , Ji Cui , John D. Kildea , David H. Slinkman , Kim Richard Coleman
IPC分类号： C01F7/20
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。

7. 发明授权

US07138472B2 High molecular weight polymers containing pendant salicylic acid groups for clarifying bayer process liquors 有权
公开(公告)号：US07138472B2
公开(公告)日：2006-11-21
申请号：US10373132
申请日：2003-02-24
申请人： Murat Quadir , Everett C. Phillips , Larry E. Brammer, Jr. , Robert P. Mahoney , John D. Kildea , Manian Ramesh , John T. Malito
发明人： Murat Quadir , Everett C. Phillips , Larry E. Brammer, Jr. , Robert P. Mahoney , John D. Kildea , Manian Ramesh , John T. Malito
IPC分类号： C08F220/10
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.

8. 发明授权

US08889096B2 Reducing aluminosilicate scale in the bayer process 有权
标题翻译：在拜耳法中减少铝硅酸盐垢
公开(公告)号：US08889096B2
公开(公告)日：2014-11-18
申请号：US13035124
申请日：2011-02-25
申请人： Timothy La , John D. Kildea , Kevin L. O'Brien , Everett C. Phillips , Kailas B. Sawant , David H. Slinkman , Frederick J. Swiecinski , Ji Cui
发明人： Timothy La , John D. Kildea , Kevin L. O'Brien , Everett C. Phillips , Kailas B. Sawant , David H. Slinkman , Frederick J. Swiecinski , Ji Cui
IPC分类号： C01F7/02 , C01F7/47
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。

9. 发明申请

US20120305837A1 RECOVERY OF ALUMINA TRIHYDRATE DURING THE BAYER PROCESS USING SCLEROGLUCAN 有权
标题翻译：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
申请人： Ryan Chester , John D. Kildea , Jing Wang , Heinrich E. Bode , Xiaojin Harry Li
发明人： Ryan Chester , John D. Kildea , Jing Wang , Heinrich E. Bode , Xiaojin Harry Li
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。

10. 发明授权

US08252266B2 Recovery of alumina trihydrate during the bayer process using scleroglucan 有权
标题翻译：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
申请人： Ryan Chester , John D. Kildea , Jing Wang , Heinrich E Bode , Xiaojin Harry Li
发明人： Ryan Chester , John D. Kildea , Jing Wang , Heinrich E Bode , Xiaojin Harry Li
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。

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