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| 化学溶胀法分离废弃线路板中金属与基板 | |
| 引用本文： | 刘宏亮,曹宏斌,李玉平,干爱华,马双玉.化学溶胀法分离废弃线路板中金属与基板[J].环境工程学报,2009,3(1):183-188. |
| 作者姓名： | 刘宏亮 曹宏斌 李玉平 干爱华 马双玉 |
| 作者单位： | 1. 中国科学院过程工程研究所绿色过程与工程院重点实验室,北京100190;天津大学化工学院,天津,300072 2. 中国科学院过程工程研究所绿色过程与工程院重点实验室,北京,100190 3. 天津大学化工学院,天津,300072 |
| 基金项目： | 中国科学院知识创新重要方向性项目（KZCX2-YW-412） |
| 摘 要： | 废弃线路板的粉碎和所含金属组分的高效解离是后续分选回收的前提条件。本研究分别使用乙二胺等10种溶剂浸泡废弃线路板，比较对线路板中铜箔与基板间剥离强度的影响，从而筛选出4种有代表性的溶剂，即溶剂D、溶剂F、丙酮和水, 比较废弃线路板经化学溶胀后的单体解离度和获得一定粒径分布的颗粒所需的破碎时间。研究结果表明，化学溶胀后破碎能大幅提高金属的单体解离度，浸泡效果的优良排序为：溶剂D>溶剂F>丙酮>水；浸泡时间越长，浸泡温度越高，对剥离强度的降低越有利；使用溶剂D在150℃、3 h或140℃、5 h的工艺下浸泡废弃线路板，可以使铜箔与基板自动脱落。研究结果为后续的分选提供了便利的条件。 |
| 关 键 词： | 废弃线路板 剥离强度 单体解离度 |
| 收稿时间： | 5/9/2008 12:00:00 AM |
| 修稿时间： | 6/5/2008 12:00:00 AM |
Separating metals from discarded printed circuit boards by chemical swellings |
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| Liu Hongliang,Cao Hongbin,Li Yuping,Gan Aihua and Ma Shuangyu.Separating metals from discarded printed circuit boards by chemical swellings[J].Techniques and Equipment for Environmental Pollution Control,2009,3(1):183-188. | |
| Authors: | Liu Hongliang Cao Hongbin Li Yuping Gan Aihua and Ma Shuangyu |
| Institution: | 1.Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190;2.School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072,1.Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190,1.Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190,2.School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072 and 2.School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072 |
| Abstract: | Comminuting of discarded printed circuit boards(PCBs) and high effective seperation of the metal composition from nonmetals is the prerequisite for the following sequence separation process.In this paper,PCBs are immersed in ethylenediamine or other nine kinds of solvents in order to compare the effect of swellings of chemicals on peel strength and pick out four typical solvents,which are respectively solvent D,solvent F,acetone,and water.The monomer dissociation degree and the essential comminuting time ai... |
| Keywords: | discarded printed circuit boards peel strength monomer dissociation degree |
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