收稿日期: 2015-03-13
修回日期: 2015-07-07
网络出版日期: 2016-03-15
基金资助
中央高校基本科研业务专项基金(2013G2291013)和流体动力与机电系统国家重点实验室开学基金(GZKF-201026)资助
Bubble-particle attachment behavior in flotation process of plastics
Received date: 2015-03-13
Revised date: 2015-07-07
Online published: 2016-03-15
赵钺 , 黄佳 , 张海峰 , 李彦鹏 . 塑料浮选分离中气泡-颗粒的黏附行为[J]. 中国科学院大学学报, 2016 , 33(2) : 283 -288 . DOI: 10.7523/j.issn.2095-6134.2016.02.022
To examine the bubble attachment behavior in flotation process of plastics, the high-speed photographic method, combined with a simple attachment time model, was employed in the experiments carried out in a laboratory-scale flotation column. Effects of the plastic material and the type and concentration of surfactant were analyzed in detail. Results show that the maximum rebound distance and attachment time decrease with surfactant concentration. The type of surfactant and plastic material influence bubble attachment behavior, and the reductions of the bubble size and the solution tension and contact angle are the deep incentives.
Key words： surfactant; plastic flotation; bubble; attachment behavior; high-speed photography
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