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    • 2. 发明授权
    • Treatment of suspensions
    • 治疗悬浮液
    • US07252783B2
    • 2007-08-07
    • US10472788
    • 2002-04-02
    • Steven WeirJanine Marie GriffithSimon Paul Oldfield
    • Steven WeirJanine Marie GriffithSimon Paul Oldfield
    • C02F1/56
    • C02F1/56B01D21/01C02F2103/28Y10S524/922
    • A method of dewatering a suspension of solids in an aqueous medium, comprising introducing into the suspension a flocculating system, which flocculation system comprises, a) a substantially non-ionic water-soluble polymer and b) a cationic polymeric flocculant of intrinsic viscosity at least 4 dl/g, thereby causing the solids to flocculate, separating the flocculated from aqueous medium, characterized in that i) the components a) and b) are introduced into the suspension as an aqueous blend; or ii) component a) is a non-ionic polymer that has an average molecular weight of below 750,000 and components a) and b) are introduced into the suspension as an aqueous blend or separately. Also claimed is an aqueous composition comprising the substantially non-ionic water-soluble polymer and cationic polymer, method for making it and a composition comprising a blend of substantially anhydrous particles of component (a) and component (b). The method and novel composition are particularly suitable for dewatering aqueous suspensions such as sewage sludges.
    • 一种将固体悬浮液在水性介质中脱水的方法,包括将絮凝体系引入悬浮液中,所述絮凝体系包含:a)基本上非离子的水溶性聚合物,和b)至少具有特性粘度的阳离子聚合物絮凝剂 4dl / g,从而导致固体絮凝,从水性介质中分离絮凝物,其特征在于i)将组分a)和b)作为水性共混物引入悬浮液中; 或ii)组分a)是平均分子量低于750,000的非离子聚合物,并且组分a)和b)作为水性共混物或分开地引入到悬浮液中。 还要求保护的是包含基本上非离子水溶性聚合物和阳离子聚合物的水性组合物,其制备方法和包含基本上无水的组分(a)和组分(b)的混合物的组合物。 该方法和新型组合物特别适用于脱水水性悬浮液如污水淤泥。
    • 4. 发明申请
    • Composition, amphoteric polymeric flocculant and use of both
    • 成分,两性聚合物絮凝剂和两者的使用
    • US20040238454A1
    • 2004-12-02
    • US10487918
    • 2004-02-27
    • Yoshio MoriKoichi Adachi
    • C02F001/52
    • D21H21/10B01D21/01C02F1/56C02F11/14C02F2209/06C08L101/02Y10S524/922
    • A composition is provided which comprises amphoteric polymers comprising, as constituent monomer units, a cationic monomer unit, an anionic monomer unit, and optionally a nonionic monomer unit and having a 0.5% salted viscosity of 10 to 120 mPanulls, wherein said amphoteric polymers comprise a first amphoteric polymer satisfying the following expression (1) and a second amphoteric polymer satisfying the following expression (2) or a third amphoteric polymer satisfying the following expressions (3) and (4): Ca1/An1null1nullnull(1) Ca2/An2
    • 提供一种组合物,其包含两性聚合物,其包含作为构成单体单元的阳离子单体单元,阴离子单体单元和任选的非离子单体单元,并且具有10至120mPa.s的0.5%盐析粘度,其中所述两性聚合物 包含满足以下表达式(1)的第一两性聚合物和满足以下表达式(2)的第二两性聚合物或满足以下表达式(3)和(4)的第三种两性聚合物:Ca1 / An1> = 1(1) Ca2 / An2 <1(2)Ca3 / An3> = 1(3)|(Ca1-An1) - (Ca3-An3)|> = 1.5(4)其中Ca1和An1分别表示阳离子单体的总摩尔数 单位和第一两性聚合物中阴离子单体单元的总摩尔数,其中第一两性聚合物中所有构成单体单元的总摩尔数转化为100摩尔; 在类似于上述条件下,Ca2和An2以及Ca3和An3分别表示第二和第三两性聚合物中阳离子单体单元的总摩尔数和阴离子单体单元的总摩尔数。 该组合物对于各种污泥的各种絮凝和脱水性能优异,特别是对于污泥比例高的污泥,可用于造纸工艺中的工艺成品率提高。
    • 6. 发明授权
    • Process for reducing true color in waste liquids
    • 减少废液中真实颜色的方法
    • US06491827B1
    • 2002-12-10
    • US09715792
    • 2000-11-17
    • Stephen R. TempleMichael J. Stoltz
    • Stephen R. TempleMichael J. Stoltz
    • C02F156
    • C02F1/56C02F1/5236C02F2103/28Y10S210/917Y10S210/928Y10S524/922
    • Compositions of aluminum chlorohydrate and high molecular weight branched epichlorohydrin amine condensate polymers are applied to waste liquids, such as pulp and paper mill effluents having a lignin content, to reduce true color. The branched epichlorohydrin amine condensate polymer is branched using branching agents which result in a molecular weight greater than about 300,000 and permit solubility. When applied to waste liquids, the high molecular weight branched epichlorohydrin amine condensate polymer and aluminum chlorohydrate react with the lignin components in the waste liquid to form an insoluble agglomerate thus reducing the true color of the waste liquid. The resulting agglomerate, including the colored lignin, may be filtered from the waste liquid.
    • 将氯化铝水合物和高分子量支链表氯醇胺缩合物聚合物的组合物应用于具有木质素含量的废液,例如纸浆和造纸厂废水,以减少真实颜色。 支化的表氯醇胺缩合物聚合物使用支化剂进行支化,其导致分子量大于约300,000并允许溶解度。 当应用于废液时,高分子量支链表氯醇胺缩合物聚合物和氯化铝铝与废液中的木质素组分反应形成不溶性聚集体,从而降低废液的真实颜色。 所得到的附聚物,包括着色的木质素,可以从废液中过滤。