镁铝水滑石对阴离子垃圾捕集的影响  

Influence of Mg-Al Hydrotalcite as a Papermaking Functional Filler on Anionic Trash Catching

作　　者：李贤慧[1] 钱学仁[1] 

机构地区：[1]东北林业大学生物质材料科学与技术教育部重点实验室,黑龙江哈尔滨150040

出　　处：《中国造纸》2009年第5期26-29,共4页China Pulp & Paper

摘　　要：考察了镁铝水滑石(HT)对阴离子垃圾捕集的影响。结果表明,HT对废纸浆的最佳处理时间为10～15min,而温度的影响不显著。镁铝摩尔比5∶1,层间阴离子为CO32-的HT捕集DCS的效果最好,当其添加量为20%时,白水的浊度可低至18.6NTU,电导率几乎为0。镁铝摩尔比5∶1,层间阴离子为Cl-的HT对CS的吸附效果最好,当其添加量为15%时,白水中已检测不到CS,浊度为0。而镁铝摩尔比5∶1,层间阴离子分别为NO3-和CO32-的HT对DS的吸附效果较好,当其添加量为10%时,白水的电导率几乎为0。HT捕集DCS的效果远优于沸石和蛋白石等常见多孔填料。The possibility of Mg-Al hydrotalcite （HT） as a papermaking functional filler to catch anionic trash was investigated. The experimental results showed that the optimum time for recycled pulp treatment with HT was 10 - 15 min. The HT with CO3^2- anion in the interlayer and Mg-Al ratio of 5：1 was the best for DCS catching. The turbidity of white water was 18.6 NTU and the conductivity was almost zero when the dosage of the HT was 20%. On the other hand, Cl^ - -HT was the best for CS catching. The CS in white water was not detected, and the turbidity was zero when adding 15% of Cl^- -HT. NO^- -HT and CO3^2- -HT had better absorption effect on DS, the conductivity of white water reached almost zero when adding 10% of them. Hereby, HT could effectively catch anionic trash through selecting and optimizing the treatment conditions, the Mg-Al ratio and interlayer anion of HT when it was used as a papermaking functional filler.

关 键 词：填料 镁铝水滑石 阴离子垃圾 捕集 多孔填料 

分 类 号：TS753[轻工技术与工程—制浆造纸工程]