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1.发明授权
公开(公告)号：US5840158A
公开(公告)日：1998-11-24
申请号：US834915
申请日：1997-04-07
申请人： Pek Lee Choo , Bruce A. Keiser , Michio Kobayashi , Maureen B. Nunn , David A. Picco , Kristine S. Salmen
发明人： Pek Lee Choo , Bruce A. Keiser , Michio Kobayashi , Maureen B. Nunn , David A. Picco , Kristine S. Salmen
CPC分类号： D21H21/10 , C02F1/5236 , C02F1/54 , C02F1/56 , D21H17/29 , D21H17/455 , D21H17/56 , D21H17/68
摘要： A method for the manufacture of paper comprising the steps of: a) forming an aqueous cellulosic papermaking slurry; b) adding an effective coagulating amount of a coagulant and a flocculant to said cellulosic papermaking slurry, wherein said coagulant is prepared by blending i) an effective coagulating amount of an aqueous conditioned colloidal silica sol with an average particle size within the range of from 1 to 150 nm and wherein the aqueous colloidal silica sol is conditioned by contacting said sol with a strong acid cation exchange resin, and ii) an effective coagulating amount of a cationically-charged water-soluble polymeric coagulant; c) draining said cellulosic suspension to form a sheet; and, d) drying said sheet. The components of the invention are blended together so that addition is simultaneous. The colloidal silica is conditioned by passing over a cationic exchange resin prior to addition of cationic polymer. The term conditioned as used herein refers to the act of passing the colloidal silica over a cationic exchange resin.
摘要翻译： 一种制造纸的方法，包括以下步骤：a）形成水性纤维素造纸浆料; b）向所述纤维素造纸浆液中加入有效凝固量的絮凝剂和絮凝剂，其中所述絮凝剂是通过将i）有效凝固量的水性调理胶体二氧化硅溶胶的平均粒度在1 通过使所述溶胶与强酸阳离子交换树脂接触来调节水性胶体二氧化硅溶胶，和ii）有效凝结量的阳离子电荷的水溶性聚合物凝结剂; c）排出所述纤维素悬浮液以形成片材; 和d）干燥所述片材。 将本发明的组分混合在一起，使得添加是同时进行的。 在加入阳离子聚合物之前，通过使阳离子交换树脂通过来调节胶体二氧化硅。 如本文所用的术语条件是指将胶体二氧化硅通过阳离子交换树脂的作用。
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2.发明授权
公开(公告)号：US5667697A
公开(公告)日：1997-09-16
申请号：US701224
申请日：1996-08-21
CPC分类号： C02F1/54 , C02F1/5236 , C02F1/56 , D21H17/29 , D21H17/455 , D21H17/56 , D21H17/68
摘要： This invention relates to the clarification of natural waters containing turbidity-causing components. This method comprises the addition of a stable colloidal silica suspension and water based polymeric coagulant to the turbid water. The components of the invention may be added independently, or blended together so that addition is simultaneous. The colloidal silica may also be conditioned by passing over a cationic exchange resin prior to addition of cationic polymer.
摘要翻译： 本发明涉及含有浑浊成分的天然水的澄清。 该方法包括向混浊水中加入稳定的胶体二氧化硅悬浮液和水基聚合物凝结剂。 本发明的组分可以独立地加入，或者混合在一起，使得添加是同时的。 胶体二氧化硅也可以在加入阳离子聚合物之前通过阳离子交换树脂进行调理。
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3.发明授权
公开(公告)号：US5620629A
公开(公告)日：1997-04-15
申请号：US613791
申请日：1995-11-26
CPC分类号： C02F1/54 , C02F1/5236 , C02F1/56 , D21H17/29 , D21H17/455 , D21H17/56 , D21H17/68
摘要： This invention relates to a composition of matter of a silica sol/water soluble cationic polymer mixture. The colloidal silica may also be conditioned by passing over a cationic exchange resin prior to addition of cationic polymer.
摘要翻译： 本发明涉及硅溶胶/水溶性阳离子聚合物混合物的物质组成。 胶体二氧化硅也可以在加入阳离子聚合物之前通过阳离子交换树脂进行调理。
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公开(公告)号：US5554298A
公开(公告)日：1996-09-10
申请号：US376729
申请日：1995-01-20
CPC分类号： B01D17/047 , B21B45/0296 , Y02P70/135
摘要： The invention comprises a method of preventing deposition of oil on steel mill scale particles comprising adding from about 1 part per million to about 500 parts per million of an amine acrylate/acrylic acid copolymer to mill flume water. Once the copolymer is added, deposition of oil onto scale particles is prevented. The recovered mill scale has less than 2% oil by weight on the scale, making it suitable for recycle to the steelmaking process. Oil and water are subsequently separated with a greater percentage of oil being recovered.
摘要翻译： 本发明包括一种防止油在钢厂颗粒上沉积的方法，其包括将约百万分之一至约百万分之一份的丙烯酸胺/丙烯酸共聚物加入到水槽中。 一旦加入共聚物，就可以防止油垢沉积在鳞屑颗粒上。 回收的轧机规模在规模上具有小于2％的油重量，使其适合回收到炼钢过程。 随后，油和水随着回收的油的百分比的增加而分离。
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