废钞浆脱墨工艺的探讨  

Study on the Deinking of Waste Banknote Paper

作　　者：孟晓敏[1] 陈子成[1,2] 贾桂娟[3] 

机构地区：[1]东北电力大学化学工程学院,吉林吉林132012 [2]东北林业大学材料工程学院,黑龙江哈尔滨150040 [3]轻工业杭州机电设计研究院,浙江杭州310004

出　　处：《纸和造纸》2013年第9期40-42,共3页Paper and Paper Making

基　　金：吉林省教育厅吉教科合字[2012]第99号

摘　　要：用氢氧化钠、硅酸钠、过氧化氢、高级脂肪酸皂类脱墨剂和复配表面活性剂在碱性条件下对废钞纸浆进行脱墨预处理,并通过洗涤法脱墨。在预处理的pH为11、Na2SiO3 2%、H2O2 1%、脱墨剂(高级脂肪酸皂)0.5%、复配表面活性剂0.3%条件下,废钞浆的白度从47.6%ISO增加到62.4%ISO、残余油墨的浓度从513 mg·kg-1下降到254mg·kg-1;脱墨后,废钞浆的纤维长度增加,宽度减小,其纤维形态更适合造纸。Sodium hydrate, sodium metasilicate, hydrogen peroxide, deinking agent of senior fatty acid soap and compound surface active agent were employed to treat the waste RMB banknote paper under alkaline condition. Then the wastepaper pulp suffered from a washing deinking process to remove the ink particles in the pulp suspension. Under the conditions of pH 11, Na2SiO3 dosage 2%, H2O2 dosage 1%, deinking agent dosage 0.5% and compound surface active agent dosage 0.3%, the brightness of deinked pulp was improved from 47.6% to 62.40/0 and the ERIC declined from 513 to 254 mg-kg-1. In comparison with the control sample, the deinked pulp achieved longer and more narrow fibers which are better for papermaking.

关 键 词：废钞 脱墨 纤维形态 

分 类 号：TS743[轻工技术与工程—制浆造纸工程]