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首页> 外文期刊>Journal of Applied Polymer Science >THE EFFECTS OF CATIONIC POLYMERS ON FLOCCULATION OF A COAL THICKENER FEED IN WASHERY WATER AS A FUNCTION OF PH
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THE EFFECTS OF CATIONIC POLYMERS ON FLOCCULATION OF A COAL THICKENER FEED IN WASHERY WATER AS A FUNCTION OF PH

机译：阳离子聚合物对洗涤水中煤增稠剂絮凝过程中PH值的影响

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摘要

The flocculation of a thickener feed using three cationic polyacrylamide copolymers of high molar mass and different charge densities was studied at three pHs in washery water. The binding capacities were very dependent on pH but only slightly dependent on the polymeric charge density. The reverse was true for the settling rates. At pH 7, all three polymers were equally effective at clarifying the suspensions, but there were marked differences at pH 4 and 9. For the polymers of highest charge density, reducing the pH increased their effectiveness; for the polymer of lower charge density, changing the pH had little effect on the residual turbidity. (C) 1997 John Wiley & Sons, Inc. [References: 9]
机译：在洗涤水中，在三个pH值下，研究了使用三种高摩尔质量和不同电荷密度的阳离子聚丙烯酰胺共聚物对增稠剂进料的絮凝。结合能力非常依赖于pH，但是仅轻微依赖于聚合物电荷密度。沉降率则相反。在pH值为7时，所有三种聚合物在澄清悬浮液方面均同样有效，但在pH 4和9时存在显着差异。对于电荷密度最高的聚合物，降低pH值可提高其效力。对于电荷密度较低的聚合物，改变pH值对残留浊度的影响很小。 （C）1997 John Wiley＆Sons，Inc. [参考：9]

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