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    Polyaluminum chloride and aluminum chlorohydrate, processes and compositions: high-basicity and ultra high-basicity products
    3.
    发明授权
    Polyaluminum chloride and aluminum chlorohydrate, processes and compositions: high-basicity and ultra high-basicity products 有权
    聚氯化铝和氯化铝水合物，工艺和组成：高碱度和超高碱度的产品

    公开(公告)号：US07846318B2

    公开(公告)日：2010-12-07

    申请号：US11619483

    申请日：2007-01-03

    申请人： William E. Pratt ,  Joseph J. Stevens ,  Peter G. Symons

    发明人： William E. Pratt ,  Joseph J. Stevens ,  Peter G. Symons

    IPC分类号： C25D5/34 ,  C25B1/24 ,  B01D61/00 ,  C01B17/45 ,  C01B17/46

    CPC分类号： C01F7/56 ,  A61K8/26 ,  A61Q15/00 ,  B01D61/44 ,  C01B9/02 ,  C01G23/02 ,  C01G25/04 ,  C01G49/10

    摘要： The invention relates generally to processes for the production of high-basicity and ultra-high basicity polyaluminum chlorides including aluminum chlorohydrate. The processes can produce products of a wide range of basicities and are particularly useful in producing high basicity products. The process can produce a wide range of solution concentrations and are particularly useful in producing high solution concentrations. The processes described generate high purity products, which are free of by-product salt(s). The processes described herein can also be utilized to produce enhanced efficacy polyaluminum chlorides including aluminum chlorohydrate. When compared to conventional processes for manufacturing these compounds the processes disclosed herein are unique in so far as the disclosed processes do not require aluminum metal as a starting material. The products of the processes are suitable in applications including water purification, catalysts, and antiperspirants. In addition, the invention is directed to the products prepared by the processes described herein.

    摘要翻译： 本发明一般涉及生产包括氯化铝水合物在内的高碱度和超高碱性聚氯化铝的方法。 该工艺可生产各种碱性产品，特别适用于生产高碱度产品。 该方法可产生大范围的溶液浓度，特别适用于生产高溶液浓度。 所述方法产生不含副产物盐的高纯度产物。 本文所述的方法也可用于产生包括氯化铝水合物的增强效力的聚氯化铝。 与用于制造这些化合物的常规方法相比，本文公开的方法是独特的，只要所公开的方法不需要铝金属作为起始材料即可。 该方法的产品适用于包括水净化，催化剂和止汗剂在内的应用。 此外，本发明涉及通过本文所述方法制备的产品。

    Method of reducing pitch in pulping and papermaking operations
    4.
    发明授权
    Method of reducing pitch in pulping and papermaking operations 失效
    减少制浆和造纸操作中沥青的方法

    公开(公告)号：US4964955A

    公开(公告)日：1990-10-23

    申请号：US287866

    申请日：1988-12-21

    申请人： Richard S. Lamar ,  William E. Pratt ,  Kenneth E. Weber ,  Robert E. Roeder

    发明人： Richard S. Lamar ,  William E. Pratt ,  Kenneth E. Weber ,  Robert E. Roeder

    IPC分类号： D21H21/02 ,  D21H23/10

    CPC分类号： D21H23/10 ,  D21H21/02 ,  Y10S162/04

    摘要： A method of and substances for reducing pitch in pulping and papermaking operations, particularly in furnishes made by mechanical pulping processes containing wood pulp in amounts greater than about 10% by weight, are disclosed. The method comprises adding to a pitch-containing furnish a stable, water dispersible particulate composite substance prepared by irreversibly adsorbing a water soluble cationic polymer, e.g., a poly(diallyldimethylammonium chloride), onto an essentially water insoluble particulate substrate, e.g., kaolin, thereby rendering the cationic polymer insoluble and immobile, the cationic polymer being sufficiently electropositive so that the particulate composite pitch control substance exhibits a zeta potential of at least about +30 mV, and preferably from about +60 mV to about +80 mV, the amount of the composite substance added to the furnish being effective to finely disperse pitch for removal as finely-dispersed pitch-containing aggregates in a paper sheet produced from said furnish.Further improvements in pitch control can be achieved using these particulate composite pitch control substances together with alum and/or relatively high molecular weight alkylene oxide polymers, and other desirable effects, including improved fines retention, better drainage and lower waste treatment costs are also obtained when practicing this method.

    摘要翻译： 公开了一种用于减少制浆和造纸操作中的沥青的方法和物质，特别是在含有大于约10重量％的木浆的机械制浆方法制备的配料中。 该方法包括向含沥青的添加物中添加通过不溶性地将水溶性阳离子聚合物例如聚（二烯丙基二甲基氯化铵）吸附在基本上不溶于水的颗粒基质例如高岭土上制备的稳定的水分散性颗粒状复合材料，由此 使阳离子聚合物不溶和不可移动，阳离子聚合物具有足够的正电性，使得颗粒状复合沥青控制物质的ζ电位显示出至少约+ 30mV，优选约+ 60mV至约+80mV， 添加到配料中的复合物质可有效地将沥青细分散，从而从由所述配料生产的纸张中精细分散含沥青的聚集体。 可以使用这些颗粒状复合沥青调节物质与明矾和/或相对高分子量的烯化氧聚合物一起实现沥青控制的进一步改进，以及其它期望的效果，包括改进的细粉保留，更好的排水和降低的废物处理成本。 练习这种方法。