聚硅酸铝镁-羧甲基纤维素钠复合絮凝剂的制备及应用
发布时间:2018-03-21 02:35
本文选题:聚硅酸铝镁 切入点:羧甲基纤维素钠 出处:《精细化工》2017年09期 论文类型:期刊论文
【摘要】:以硅酸钠、硫酸铝、硫酸镁、羧甲基纤维素钠为原料,制备了聚硅酸铝镁-羧甲基纤维素钠(PSi AM-CMC)无机-有机复合絮凝剂并应用于模拟的松花江水样的处理。结果表明,在n(Al+Mg)/n(Si)=0.6、n(Mg)∶n(Al)=1∶4、m(CMC)/m(Si)=0.3、羧甲基纤维素钠糊化温度为60℃、p H=2的条件下,制备的PSi AM-CMC对模拟江水的絮凝效果最好,色度、浊度去除率可达98%以上。采用SEM、FTIR、XRD对絮凝剂的结构进行表征,结果表明,PSi AM-CMC不是聚硅酸、金属盐和羧甲基纤维素钠的混合物,而是通过缩聚和配位反应,形成的一种兼具无机和有机絮凝剂优点的物质。
[Abstract]:Using sodium silicate, aluminum sulfate, magnesium sulfate and sodium carboxymethyl cellulose as raw materials, the inorganic organic compound flocculant PSiAM-CMC was prepared and applied to the treatment of simulated Songhua River water sample. Under the conditions that the ratio of PSi / Mg-C / N is 0.6%, and the gelatinization temperature of sodium carboxymethyl cellulose is 60 鈩,
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