earth-science-2019-posters-abstracts

2 / 2

Note:
Page 41
OF EXCELLENCE
IN INTERNATIONAL
MEETINGS
YEARS
Journal of EnvironmentalWaste Management and Recycling | Volume 2 Earth Science 2019
May 22-23, 2019 | Rome, Italy
EARTH SCIENCE,
RECYCLING & SPACE TECHNOLOGY
7th International Conference on
Posters
Wu JM et al., J Environ Waste Management and Recycling 2019, Volume 2
GOLD ENRICHMENT AND RECOVERY FROM E-WASTE POWDERS
Wu JM and Chen TY
Tamkang University, Taiwan
In this study, hydrocyclone is used to sort electronic waste powders. After sorting, chemical solvent UW860
is utilized to extract gold from electronic waste powders. The effect of operating ways and conditions of hy-
drocyclone in gathering precious metal is discussed. The use of hydrocyclone can decrease a large amount of
powders needed, processed and also lower the usage of chemical solvent to make the process cost of precious
metal much cheaper. The experiment result represents that it can sort electronic powders with gold into 70%
in underflow by using Type B05 hydrocyclone. The concentration ratio of gold is 1.4 times than prior art. The
recovery rate of gold is 99%. On the other hand, the selectivity in underflow takes up 60% by using Type E hy-
drocyclone, i.e., the enrichment ratio of recycling gold is 1.6 times. In fact, considering the usage of chemical
solvent and the costs of operation, it is more practical and valuable to use Type E hydrocyclone..
Wu JM has completed his PhD from National Taiwan University, Taiwan. He is the Professor of Tamkang University, Taiwan. He has
over 50 publications that have been cited over 200 times and 10 patents.
BIOGRAPHY