专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2002060555A1 METHOD OF CLARIFYING BAYER PROCESS LIQUORS USING SALICYLIC ACID CONTAINING POLYMERS 审中-公开
标题翻译：使用含有聚合物的脂肪酸澄清贝氏体工艺液体的方法
公开(公告)号：WO2002060555A1
公开(公告)日：2002-08-08
申请号：PCT/US2001/048585
申请日：2001-12-11
申请人： ONDEO NALCO COMPANY
发明人： QUADIR, Murat , PHILLIPS, Everett, C. , BRAMMER, Larry, E., Jr. , MAHONEY, Robert, P. , KILDEA, John, L. , RAMESH, Manian , MALITO, John, T.
IPC分类号： B01D21/01
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。

2. 发明申请

WO00043317A1 RHEOLOGY MODIFICATION OF SETTLED SOLIDS IN MINERAL PROCESSING 审中-公开
标题翻译：矿物加工中固定固体的流变学改造
公开(公告)号：WO00043317A1
公开(公告)日：2000-07-27
申请号：PCT/US1999/028855
申请日：1999-12-06
IPC分类号： B01F7/16 , B01F15/02 , C01F7/06 , C01F1/00 , B01D21/00 , B01D43/00 , B01F5/04 , C01F7/00
CPC分类号： C01F7/0653 , B01F7/165 , B01F15/0203 , C01F7/066
摘要： The present invention comprises a method for reducing the viscosity of the settled mud or underflow of a raked thickener thereby reducing the torque necessary to move the rake blade through the settled mud. The method includes the step of delivering a viscosity modifier to the settled mud and in front of the rake blade by pumping the viscosity modifier down the rake arm to the area in front of the rake blade. The method also includes an improved rake mechanism that includes a means for delivering viscosity modifier to the settled mud and in front of the rake blade. The present invention also includes a method of increasing the rate of consolidation of flocculated solids in a slurry.
摘要翻译：本发明包括一种降低沉降的泥浆的粘度或倾斜的增稠器的下溢的方法，从而减少将耙刀移动通过沉降的泥浆所必需的扭矩。该方法包括通过将耙臂上的粘度调节剂泵送到耙叶前面的区域，将粘度调节剂输送到沉降的泥浆和耙叶前面的步骤。该方法还包括改进的耙式机构，其包括用于将粘度调节剂输送到沉降的泥浆和在耙叶前面的装置。本发明还包括提高浆料中絮凝固体的固结速率的方法。

3. 发明申请

WO1996014271A1 BLENDS OF HYDROXAMATED POLYMER EMULSIONS WITH POLYACRYLATE EMULSIONS 审中-公开
标题翻译：含聚丙烯酸酯乳液的水性聚合物乳液的共混
公开(公告)号：WO1996014271A1
公开(公告)日：1996-05-17
申请号：PCT/US1995013491
申请日：1995-10-10
申请人： CYTEC TECHNOLOGY CORP.
发明人： CYTEC TECHNOLOGY CORP. , LEWELLYN, Morris, E.
IPC分类号： C01F07/06
CPC分类号： B01D21/01 , C01F7/0653
摘要： A composition comprising a blend of an inverse emulsion of a hydroxamated polymer and a second inverse emulsion of a second polymer selected from the group consisting of alkali metal (meth)acrylate homopolymers, ammonium (meth)acrylate homopolymers, and copolymers of the (meth)acrylates with (alk)acrylamides, wherein the molar ratio of hydroxamated polymer to said second polymer in the emulsion is within the range of about 99:1 to 15:85 when the second polymer is an alkali metal (meth)acrylate homopolymer or copolymer and is within the range of about 99:1 to 58:42 when said second polymer is an ammonium (meth)acrylate homopolymer or copolymer. Processes for removing suspended solids from Bayer alumina process streams using these compositions are also provided.
摘要翻译：一种组合物，其包含异羟肟化聚合物的反相乳液和选自碱金属（甲基）丙烯酸酯均聚物，（甲基）丙烯酸铵均聚物和第（甲基）丙烯酸烷基酯）均聚物的第二聚合物的第二反相乳液的共混物，丙烯酸酯与（alk）丙烯酰胺，其中当第二聚合物是碱金属（甲基）丙烯酸酯均聚物或共聚物时，乳液中异羟肟酸聚合物与所述第二聚合物的摩尔比在约99:1至15:85的范围内，当所述第二聚合物是（甲基）丙烯酸铵均聚物或共聚物时，在约99:1至58:42的范围内。还提供了使用这些组合物从拜耳氧化铝工艺流中除去悬浮固体的方法。

4. 发明申请

WO2015092503A1 PROCESS AND INSTALLATION FOR PRODUCING ALUMINA TRIHYDRATE BY ALKALINE DIGESTION OF BAUXITE ORE 审中-公开
标题翻译：通过碱金属碱处理生产三氧化二铝的工艺和安装
公开(公告)号：WO2015092503A1
公开(公告)日：2015-06-25
申请号：PCT/IB2014/002606
申请日：2014-11-28
申请人： RIO TINTO ALCAN INTERNATIONAL LIMITED
发明人： REID, Michaël , PELOQUIN, Guy , ST-LAURENT, Matthieu , RACINE, Philippe
IPC分类号： C22B3/04 , C01F7/14 , C22B3/20 , C22B21/00
CPC分类号： C01F7/0666 , B01D21/01 , B01D21/06 , B01D21/08 , B01D21/2405 , B01D21/2411 , B01D21/2427 , B01D21/2444 , B01D21/2488 , B01D21/32 , C01F7/0646 , C01F7/0653
摘要： A process for producing alumina trihydrate comprising an digestion step (26), a separation step (70), and a precipitation step (52) the separation step including: b1) pretreating a slurry from the digestion step by adding a fiocculant to said slurry and mixing the fiocculant and the slurry, b2) settling the resulting flocculated slurry in a gravity settler vessel, b3) determining a measured value representative of the concentration of solid particles in the resulting clarified liquor, b4) comparing the measured value with a predetermined threshold, b5) feeding said clarified liquor directly to the precipitation step (52), while the measured value is less than said predetermined threshold, and b6) redirecting said clarified liquor to the pre-treatment step b1), when the measured value is more than said predetermined threshold. An installation for operating said process.
摘要翻译：一种生产氧化铝三水合物的方法，包括消化步骤（26），分离步骤（70）和沉淀步骤（52），所述分离步骤包括：b1）通过向所述浆料中加入絮凝剂，从消化步骤中预处理浆料，将絮凝剂和浆料混合，b2）将所得絮凝浆料沉淀在重力沉降器容器中，b3）测定代表所得澄清液体中固体颗粒浓度的测量值，b4）将测量值与预定阈值进行比较， b5）将所述澄清液直接进入沉淀步骤（52），同时测量值小于所述预定阈值，以及b6）当所述测量值大于所述预处理步骤b1）时，将所述澄清液重定向到所述预处理步骤b1）预定阈值。用于操作所述过程的安装。

5. 发明申请

WO2012087862A3 MICRODISPERSIONS OF HYDROXAMATED POLYMERS AND METHODS OF MAKING AND USING THEM 审中-公开
标题翻译：羟基化聚合物的微分散体及其制备和使用方法
公开(公告)号：WO2012087862A3
公开(公告)日：2012-12-06
申请号：PCT/US2011065718
申请日：2011-12-19
申请人： CYTEC TECH CORP , LEWELLYN MORRIS , ROTHENBERG ALAN S , CHEN HAUNN-LIN TONY , MAGLIOCCO LINO G , SASSI THOMAS P
发明人： LEWELLYN MORRIS , ROTHENBERG ALAN S , CHEN HAUNN-LIN TONY , MAGLIOCCO LINO G , SASSI THOMAS P
IPC分类号： C08F8/32 , B01D21/01 , C01B21/14 , C01F7/06 , C08F2/32 , C08F20/02 , C08F20/56
CPC分类号： C08F8/32 , C01F7/0653 , C08F20/56
摘要： Methods of producing microdispersions containing hydroxamated polymers by reacting water-in-oil microdispersions having vinyl polymers containing one or more pendant functional groups that react with hydroxylamine, with a hydroxylamine-free base substantially free of inorganic salt and containing less than 500 ppm hydrazine are disclosed herein, along with the microdispersions thereby obtained.
摘要翻译：通过使含有一个或多个与羟胺反应的侧链官能团的乙烯基聚合物与基本上不含无机盐且含有少于500ppm肼的无羟基碱的油包水微分散体反应而制备含有异羟肟酸化聚合物的微分散体的方法在此连同由此获得的微分散体。

6. 发明申请

WO2011100183A1 WATER-IN-OIL EMULSION COMPOSITIONS AND METHODS FOR MAKING AND USING THE SAME 审中-公开
标题翻译：油脂乳化剂组合物及其制备和使用方法
公开(公告)号：WO2011100183A1
公开(公告)日：2011-08-18
申请号：PCT/US2011/023866
申请日：2011-02-07
申请人： CYTEC TECHNOLOGY CORP. , CHEN, Haunn-Lin, (Tony) , CYWAR, Douglas, A. , DAVIS, Matthew, J. , LEWELLYN, Morris
发明人： CHEN, Haunn-Lin, (Tony) , CYWAR, Douglas, A. , DAVIS, Matthew, J. , LEWELLYN, Morris
IPC分类号： B01F17/00 , C01F7/06
CPC分类号： C01F7/0653 , B01F17/0071 , C02F1/56 , C08F212/08
摘要： The suspended solids content of a process stream in a process for producing alumina is reduced by contacting the stream with silicon-containing polymers provided by water-in-oil compositions.
摘要翻译：通过使流与由油包水组合物提供的含硅聚合物接触，在生产氧化铝的方法中工艺流的悬浮固体含量降低。

7. 发明申请

WO2004076510A2 HIGH MOLECULAR WEIGHT POLYMERS CONTAINING PENDENT SALICYCLIC ACID GROUPS FOR CLARIFYING BAYER PROCESS LIQUORS 审中-公开
标题翻译：高分子量聚合物包含用于澄清贝叶子过程液体的相关的水性酸性聚合物
公开(公告)号：WO2004076510A2
公开(公告)日：2004-09-10
申请号：PCT/US2004/004004
申请日：2004-02-11
申请人： NALCO COMPANY
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： C08G
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，其包含水杨酸侧基并具有至少约2,000,000道尔顿的重均分子量，并且使用该聚合物澄清在拜耳法中产生的含红泥的液体以从铝土矿。

8. 发明申请

WO99030794A1 WATER CONTINUOUS EMULSION POLYMERS FOR IMPROVING THE EFFICIENCY OF FILTRATION, CLARIFICATION AND SCALE CONTROL IN THE BAYER PROCESS 审中-公开
标题翻译：水连续乳化聚合物，用于提高贝氏体过滤过滤，澄清和定标控制的效率
公开(公告)号：WO99030794A1
公开(公告)日：1999-06-24
申请号：PCT/US1998/026207
申请日：1998-12-10
IPC分类号： B01D21/01 , C01F7/06 , C02F1/56
CPC分类号： C02F1/56 , B01D21/01 , C01F7/0653
摘要： The present invention is directed to improvements in the Bayer mining process, used for the recovery of alumina from bauxite ore. Water-continuous emulsion polymers are advantageously used to improve the clarification, filtration and scale control of red-mud containing liquors generated during the Bayer process. Preferred polymers are high molecular weight poly(methyl acrylate/acrylic acid), poly(methyl acrylate), poly(vinyl acetate/acrylic acid/methyl acrylate) and a combination of a high molecular weight poly(methyl acrylate/acrylic acid) with a lower molecular weight poly(methyl acrylate/acrylic acid).
摘要翻译：本发明涉及用于从铝土矿矿石回收氧化铝的拜耳采矿方法的改进。水连续乳液聚合物有利地用于改善在拜耳法中产生的含红泥的液体的澄清，过滤和水垢控制。优选的聚合物是高分子量聚（丙烯酸甲酯/丙烯酸），聚（丙烯酸甲酯），聚（乙酸乙烯酯/丙烯酸/丙烯酸甲酯）和高分子量聚（丙烯酸甲酯/丙烯酸）与较低分子量的聚（丙烯酸甲酯/丙烯酸）。

9. 发明申请

WO2014158381A1 CROSS-LINKED ETHYLSULFONATED DIHYDROXYPROPYL CELLULOSE 审中-公开
标题翻译：交联乙二醇二羟丙基纤维素
公开(公告)号：WO2014158381A1
公开(公告)日：2014-10-02
申请号：PCT/US2014/015538
申请日：2014-02-10
申请人： NALCO COMPANY
发明人： BODE, Heinrich E. , KILDEA, John D. , WANG, Jing
IPC分类号： C01F7/02 , C08B37/00 , C08B1/00
CPC分类号： C01F7/0633 , C01F7/0653 , C01F7/145 , C08B5/14 , C08B15/005 , C08B37/0021 , C08L1/16 , C08L5/02
摘要： The invention provides methods and compositions for improving the production of alumina hydrate. The invention involves adding one or more cross-linked ethylsulfonated polysaccharides to liquor or slurry in the fluid circuit of the production process. The one or more polysaccharides include 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交联的乙基磺化多糖。一种或多种多糖包括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。

10. 发明申请

WO2012087862A2 MICRODISPERSIONS OF HYDROXAMATED POLYMERS AND METHODS OF MAKING AND USING THEM 审中-公开
标题翻译：羟基聚合物的微观结构及其制备与使用方法
公开(公告)号：WO2012087862A2
公开(公告)日：2012-06-28
申请号：PCT/US2011/065718
申请日：2011-12-19
申请人： CYTEC TECHNOLOGY CORP. , LEWELLYN, Morris , ROTHENBERG, Alan, S. , CHEN, Haunn-lin, Tony , MAGLIOCCO, Lino, G. , SASSI, Thomas, P.
发明人： LEWELLYN, Morris , ROTHENBERG, Alan, S. , CHEN, Haunn-lin, Tony , MAGLIOCCO, Lino, G. , SASSI, Thomas, P.
IPC分类号： C08F8/32
CPC分类号： C08F8/32 , C01F7/0653 , C08F20/56
摘要： Methods of producing microdispersions containing hydroxamated polymers by reacting water-in-oil microdispersions having vinyl polymers containing one or more pendant functional groups that react with hydroxylamine, with a hydroxylamine-free base substantially free of inorganic salt and containing less than 500 ppm hydrazine are disclosed herein, along with the microdispersions thereby obtained.
摘要翻译：公开了通过使含有与羟胺反应的一个或多个侧基官能团的乙烯基聚合物的油包水微分散体与基本上不含无机盐并且含有小于500ppm肼的不含羟胺的碱反应来生产含有异羟肟化聚合物的微分散体的方法在此，连同由此得到的微分散体一起。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式