CAS OpenIR
Selective Recovery of Gallium (Indium) from Metal Organic Chemical Vapor Deposition Dust-A Sustainable Process
Fang, S; Tao, TY; Cao, HB; Zheng, XH; Hu, YY; Zhang, Y; Sun, Z; Fang, Sheng; Tao, Tianyi; Cao, Hongbin; Zheng, Xiaohong; Hu, Yingyan; Zhang, Yi; Sun, Zhi
2019
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
Volume7Issue:10Pages:9646
AbstractGallium (indium)-containing dust as a hazardous waste generated from light-emitting diode (LED) epitaxial wafer manufacturing attracts worldwide attention because of both resources and environmental importance. Oxidative roasting combined with acidic leaching is frequently utilized to recover the corresponding metals from such dust, while the recovery rate is usually low because of the rather inert physicochemical properties of gallium compounds. Simultaneously, the selectivity of leaching is low, which results in complex separation or purification is required in order to obtain the required product (e.g., metallic gallium, Ga(OH)(3)). In this research, it is demonstrated that the selectivity of leaching can be achieved via properly controlling the physicochemical properties of the leaching solution and the leaching conditions. The leaching rate of gallium can reach 90.01% through optimizing the effects of different parameters, including leaching reagent concentration, solid-to-liquid ratio, reaction temperature, reaction time, and rotation rate, which is about 16% higher than the conventional method. Moreover, the corresponding leaching mechanisms and kinetics were also evaluated, and the apparent activation energy of the reaction is determined as 24.33 kJ/mol. Without further purification, 99.8% of gallium and 99.1% of indium can be further recovered as Ga(OH)(3) and In(OH)(3) from the leaching solutions, respectively. In the whole process, the effective recycling rates of gallium and indium are 89.83% and 92.42%, respectively. This study provides bases for developing an effective recycling process of such waste with high recovery rate, advanced selectivity, and low environmental impacts.
KeywordGa-bearing dust LITHIUM-ION BATTERY Metal recycling ELECTRONIC WASTE Selective leaching CATHODE SCRAP Precipitation LED INDUSTRY POWER DEVICE RED MUD ZINC GAN EXTRACTION SEPARATION
SubtypeArticle
DOI10.1021/acssuschemeng.9b01228
WOS IDWOS:000469304900063
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28193
Collection中国科学院过程工程研究所
Recommended Citation
GB/T 7714
Fang, S,Tao, TY,Cao, HB,et al. Selective Recovery of Gallium (Indium) from Metal Organic Chemical Vapor Deposition Dust-A Sustainable Process[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(10):9646, 9654.
APA Fang, S.,Tao, TY.,Cao, HB.,Zheng, XH.,Hu, YY.,...&Sun, Zhi.(2019).Selective Recovery of Gallium (Indium) from Metal Organic Chemical Vapor Deposition Dust-A Sustainable Process.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(10),9646.
MLA Fang, S,et al."Selective Recovery of Gallium (Indium) from Metal Organic Chemical Vapor Deposition Dust-A Sustainable Process".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.10(2019):9646.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Fang, S]'s Articles
[Tao, TY]'s Articles
[Cao, HB]'s Articles
Baidu academic
Similar articles in Baidu academic
[Fang, S]'s Articles
[Tao, TY]'s Articles
[Cao, HB]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Fang, S]'s Articles
[Tao, TY]'s Articles
[Cao, HB]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.