期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 311, 期 -, 页码 91-99出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2016.02.061
关键词
Inverse flotation; Recycling; Printed circuit board
The generation of electrical and electronic waste is increasing day by day; recycling is attractive because of the metallic fraction containing these. Nevertheless, conventional techniques are highly polluting. The comminution of the printed circuit boards followed by an inverse flotation process is a clean technique that allows one to separate the metallic fraction from the non-metallic fraction. It was found that particle size and superficial air velocity are the main variables in the separation of the different fractions. In this way an efficient separation is achieved by avoiding the environmental contamination coupled with the possible utilization of the different fractions obtained. (C) 2016 Elsevier B.V. All rights reserved.
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