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1. 发明授权

EP1274652B1 METHOD OF CLARIFYING WATER USING LOW MOLECULAR WEIGHT CATIONIC DISPERSION POLYMERS 有权
标题翻译：工艺用水的IN USE低分子阳离子分散聚合物澄清
公开(公告)号：EP1274652B1
公开(公告)日：2013-12-18
申请号：EP01924243.7
申请日：2001-03-20
申请人： NALCO CHEMICAL COMPANY
发明人： SPARAPANY, John, W. , CARDILE, Richard, P.
IPC分类号： C02F1/56
CPC分类号： C02F1/56 , C02F1/682 , C02F11/14 , C02F2103/001 , C08F220/56 , C08F220/34
摘要： This invention is directed to a method of clarifying water comprising adding to the water an effective clarifying amount of a low molecular weight water-soluble cationic dispersion polymer prepared by polymerizing one or more cationic monomers and one or more nonionic monomers and one or more chain transfer agents under free radical forming conditions in an aqueous solution of an anionic salt in the presence of a stabilizer polymer, wherein the cationic dispersion has a cationic charge of from about 1.0 mole percent to about 75 mole percent and an RSV of from about 0.2 dl/g to about 6 dl/g.

2. 发明公开

EP2058654A1 Apparatus for measuring calcium oxalate scaling 审中-公开
标题翻译：用于测量草酸钙结垢的设备
公开(公告)号：EP2058654A1
公开(公告)日：2009-05-13
申请号：EP09152953.7
申请日：2001-02-23
申请人： NALCO CHEMICAL COMPANY
发明人： Shevchenko, Sergey M , Kouznetsov, Dmitri L , Duggirala, Prasad Y
IPC分类号： G01N27/42 , G01N27/00 , G01N33/18
CPC分类号： G01N29/30 , G01N29/022 , G01N29/222 , G01N33/1853 , G01N2291/0256 , G01N2291/0426
摘要： The invention relates to an apparatus for measuring the calcium oxalate scale forming propensity of a continuously flowing solution having a pH of from 2 to 3 which comprises a quartz crystal microbalance having a top side comprising a working electrode for exposure to the solution and a bottom side isolated from the solution, wherein the working electrode is coated with or made of a conductive material on which the intensive evolution of hydrogen gas proceeds at potentials more negative than necessary to achieve a pH of 3.5-9 proximate to the microbalance.
摘要翻译：本发明涉及一种用于测量具有2至3的pH的连续流动溶液的草酸钙垢形成倾向的设备，该设备包括石英晶体微量天平，该石英晶体微量天平具有包括用于暴露于溶液的工作电极的顶侧和底侧其中所述工作电极涂覆有导电材料或由导电材料制成，在所述导电材料上氢气的强烈放电在比实现接近微量天平的3.5-9的pH所需负电势更负的电位下进行。

3. 发明授权

EP1266210B1 METHOD FOR MEASURING CALCIUM OXALATE SCALING 有权
标题翻译：测量水垢沉积的钙草酸盐法
公开(公告)号：EP1266210B1
公开(公告)日：2009-04-15
申请号：EP01916179.3
申请日：2001-02-23
申请人： NALCO CHEMICAL COMPANY
发明人： SHEVCHENKO, Sergey, M. , KOUZNETSOV, Dmitri, L. , DUGGIRALA, Prasad, Y.
IPC分类号： G01N27/42 , G01N27/00 , G01N33/18
CPC分类号： G01N29/30 , G01N29/022 , G01N29/222 , G01N33/1853 , G01N2291/0256 , G01N2291/0426
摘要： This invention is directed to a method and apparatus for measuring the rate of calcium oxalate scale formation in a continuously flowing solution having a pH of from about 2 to about 3 comprising measuring the rate of deposition of calcium oxalate scale from the solution on to a quartz crystal microbalance having a top side and a second, bottom side isolated from the solution, wherein the pH of the solution proximate to the microbalance is measured using a pH measuring module and is controlled electrochemically at from about 3.5 to about 9 and wherein the working electrode (23) is coated with or made of a conductive material on which the intensive evolution of hydrogen gas proceeds at potentials more negative than those necessary to achieve a pH of 3.5-9 proximate to the microbalance (2).

4. 发明授权

EP1115663B1 METHOD OF DEWATERING DIFFICULT SLUDGES 有权
标题翻译：方法复杂排水污泥
公开(公告)号：EP1115663B1
公开(公告)日：2006-09-20
申请号：EP99932065.8
申请日：1999-06-29
申请人： NALCO CHEMICAL COMPANY
发明人： SOMMESE, Anthony, G. , SHAH, Jitendra
IPC分类号： C02F1/52 , C02F1/54 , C02F1/56 , C02F11/14 , C02F11/02
CPC分类号： C02F11/14
摘要： The present invention provides a new method for dewatering difficult sludges, such as autothermal thermophilic aerobic digestion sludges. The method incorporates a three-component treatment system. Initially, the difficult sludge is dosed with an inorganic coagulant and then the resulting sludge - inorganic mixture is dosed with a microparticle component. Lastly, the resulting mixture is dosed with a high molecular weight flocculant.

5. 发明授权

EP1089797B1 DEXTRAN STARCH AND FLOCCULANT COMBINATION FOR IMPROVING RED MUD CLARIFICATION 有权
标题翻译：葡聚糖强度和絮凝剂，以改善ROTSCHLAMMKLÄRUNG
公开(公告)号：EP1089797B1
公开(公告)日：2006-09-20
申请号：EP99924318.1
申请日：1999-05-19
申请人： NALCO CHEMICAL COMPANY
发明人： BARHAM, Scott , TIPPETT, James, Morton
IPC分类号： B01D21/01 , C02F1/56 , C02F1/52
CPC分类号： C02F1/54 , B01D21/01 , B01D21/26 , B01D21/262 , C02F1/5263 , C02F1/56 , C02F2103/16
摘要： The claimed invention is a method for separating Bayer process red mud from a Bayer process liquor which comprises adding to a Bayer process liquor containing red mud an effective amount of a water soluble synthetic flocculant, dextran and starch combination. The flocculant is added anywhere in the slurry containing the red mud suspended in Bayer process liquor, or in a liquor slurry containing bauxite prior to or during digestion. Once the flocculant combination is added, it is mixed sequentially with the Bayer process liquor and the red mud contained in the Bayer process liquor is removed by sedimentation, centrifugation or filtration.

6. 发明公开

EP1496351A3 Solid-state fluorometer and methods of use therefor 失效
标题翻译：固态荧光计及其使用方法
公开(公告)号：EP1496351A3
公开(公告)日：2006-03-15
申请号：EP04022872.8
申请日：1998-06-09
申请人： NALCO CHEMICAL COMPANY
发明人： Alfano, Joseph C. , Fehr, Michael J. , Godfrey, Martin R. , Hoots, John E. , Moeggenborg, Kevin J. , Rao, Narasimha M. , Rasimas, Jeffrey P. , Tubergen, Karen R. , Whitten, James E.
IPC分类号： G01N21/64
CPC分类号： G01N21/643
摘要： Fluorescence of a sample cell 20, 120, resulting from excitation by a diode laser 12 or a LED excitation source, 112 is imaged, optionally with a lens, 14, 114 onto a silicon photodiode detector 16, 116. An optical filter 18, 118 is placed between the sample cell and the photodiode detector to reject scattered excitation light. Output from the photodiode is amplified to produce an output voltage proportional to the quantity of fluorescence striking the photodiode detector. Since fluorescence is proportional to the concentration of a fluorophore present in a sample stream through hthe sample cell, and the concentration of the fluorophore is further proportional to a concentration of a chemical treatment agent or other additive present, then continuous monitoring of a voltage output allows real-time measurement of the amount of chemical treatment agent or other additive present in the sample stream.
摘要翻译：由二极管激光器12或LED激发源112激发产生的样本单元20,120的荧光可选地用透镜14,114成像到硅光电二极管检测器16,116上。光学滤波器18,118 放置在样品池和光电二极管检测器之间以排除散射的激发光。光电二极管的输出被放大，产生与光电二极管检测器的荧光量成比例的输出电压。由于荧光与通过样品池的样品流中存在的荧光团的浓度成比例，并且荧光团的浓度进一步与存在的化学处理剂或其他添加剂的浓度成比例，因此对电压输出的连续监测允许实时测量样品流中存在的化学处理剂或其他添加剂的量。

7. 发明公开

EP1460041A3 An anionic nanocomposite for use as a retention and drainage aid in papermaking 有权
标题翻译：用作造纸助留助滤剂阴离子纳米复合材料
公开(公告)号：EP1460041A3
公开(公告)日：2006-01-25
申请号：EP04014887.6
申请日：1999-06-17
申请人： NALCO CHEMICAL COMPANY
发明人： Begala, Arthur James , Keiser, Bruce A.
IPC分类号： C01B33/14 , D21H17/69 , D21H21/10 , D21H17/42 , D21H17/47 , D21H17/68
CPC分类号： D21H21/10 , D21H17/28 , D21H17/43 , D21H17/47 , D21H17/68 , D21H17/69 , D21H23/765
摘要： According to the present invention, there is provided an anionic nanocomposite for use as a retention and drainage aid in papermaking obtainable by a process comprising the steps of:

a) providing a sodium silicate solution;
b) adding an anionic polyelectrolyte to the sodium silicate solution; and
c) combining the sodium silicate solution containing the anionic polyelectrolyte with silicic acid, wherein the silicic acid is combined with the sodium silicate solution containing the anionic polyelectrolyte by adding the silicic acid to the solution or wherein the silicic acid is combined with the sodium silicate solution containing the anionic polyelectrolyte by generating the silicic acid in situ by adding a solution of sodium silicate, also containing an anionic polyelectrolyte or the two can be added separately, to a weak acid ion exchange resin in the hydrogen form.

8. 发明公开

EP1493333A1 Composition and method for controlling biological growth using stabilized sodium hypobromite in synergistic combinations 有权
标题翻译：组合物和方法，用于在协同组合使用稳定化的次溴酸钠控制生物生长
公开(公告)号：EP1493333A1
公开(公告)日：2005-01-05
申请号：EP04022539.3
申请日：2000-08-11
申请人： NALCO CHEMICAL COMPANY
发明人： Cooper, Andrew J. , Dallmier, Anthony W. , Kelly, Robert F. , McCoy, William F. , Ma, Xi
IPC分类号： A01N59/00 , A01N43/80
CPC分类号： C02F1/766 , A01N43/80 , A01N59/00 , C02F1/50 , C02F2101/308 , C02F2103/008 , C02F2103/02 , C02F2103/023 , C02F2103/10 , C02F2103/12 , C02F2103/18 , C02F2103/28 , C02F2103/32 , C02F2103/42 , A01N57/34 , A01N43/90 , A01N33/24 , A01N33/04 , A01N25/22 , A01N2300/00
摘要： A synergistic composition and method for controlling biological growth in industrial fluids are disclosed, wherein the composition comprises stabilized sodium hypobromite and 4, 5-dichloro-2-n-octyl-4-isothiazoline-3-one.

9. 发明公开

EP1460041A2 An anionic nanocomposite for use as a retention and drainage aid in papermaking 有权
标题翻译：用作造纸助留助滤剂阴离子纳米复合材料
公开(公告)号：EP1460041A2
公开(公告)日：2004-09-22
申请号：EP04014887.6
申请日：1999-06-17
申请人： NALCO CHEMICAL COMPANY
发明人： Begala, Arthur James , Keiser, Bruce A.
IPC分类号： C01B33/14 , D21H17/69
CPC分类号： D21H21/10 , D21H17/28 , D21H17/43 , D21H17/47 , D21H17/68 , D21H17/69 , D21H23/765
摘要： According to the present invention, there is provided an anionic nanocomposite for use as a retention and drainage aid in papermaking obtainable by a process comprising the steps of:

a) providing a sodium silicate solution;
b) adding an anionic polyelectrolyte to the sodium silicate solution; and
c) combining the sodium silicate solution containing the anionic polyelectrolyte with silicic acid, wherein the silicic acid is combined with the sodium silicate solution containing the anionic polyelectrolyte by adding the silicic acid to the solution or wherein the silicic acid is combined with the sodium silicate solution containing the anionic polyelectrolyte by generating the silicic acid in situ by adding a solution of sodium silicate, also containing an anionic polyelectrolyte or the two can be added separately, to a weak acid ion exchange resin in the hydrogen form.
摘要翻译：。根据本发明，在纳米复合阴离子提供用作通过包括以下步骤的方法在造纸可获得的一助留助滤剂：a）提供一种硅酸钠溶液; b）向阴离子聚电解质的硅酸钠溶液; 及c）将硅酸钠溶液，其中含有阴离子聚电解质与硅酸，worin硅酸与硅酸钠溶液通过将硅酸溶液或worin硅酸含阴离子聚电解质组合与硅酸钠结合含有通过添加硅酸钠溶液就地生成的硅酸溶液的阴离子聚电解质，所以在阴离子聚电解质含有或二者可以单独地加入，以在氢形式的弱酸离子交换树脂。

10. 发明授权

EP0924167B1 Amphoteric polymer/polyamine combinations for color removal and clarification of paper mill waste water 有权
标题翻译：两性聚合物/多胺的混合物用于去除染料的和澄清的流出物从造纸机
公开(公告)号：EP0924167B1
公开(公告)日：2003-09-03
申请号：EP98310135.3
申请日：1998-12-10
申请人： NALCO CHEMICAL COMPANY
发明人： Braden, Michael L. , Metzgar, Richard E. , Shah, Jitendra T,
IPC分类号： C02F1/56 , C02F9/00
CPC分类号： C02F1/56 , Y10S210/917 , Y10S210/928

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