利用草浆黑液制备两性木质素絮凝剂
收稿日期: 2005-08-27
网络出版日期: 2010-10-01
Preparation of amphoteric lignin-base flocculant from paper-making black liquor
Received date: 2005-08-27
Online published: 2010-10-01
胡拥军, 龙立平, 吴四贵, 熊文高 . 利用草浆黑液制备两性木质素絮凝剂[J]. 工业水处理, 2006 , 26(2) : 30 -32 . DOI: 10.11894/1005-829x.2006年.26(02).30
The lignin is recovered from the alkaline paper-making black liquor by acidulation precipitation and then through sulfonation, graft and polycondensation, the amphoteric lignin-base flocculant can be prepared.The application tests show that both of the turbidity removal and decolorization rates are higher than 85%, when the concentrations of the flocculant are 25 mg/L and 300 mg/L.
Key words: lignin; flocculant; sodium lignosulfonate; black liquor
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