Extraction of Molybdenum from Spent HDS Catalyst by Pressure Alkaline Leaching

被引：15
|
作者：
Zhao, Shijie [1 ]
Liao, Zhiqin [1 ]
Xie, Yu [1 ]
Li, Xisong [1 ]
Dai, Yanyang [1 ]
Li, Zhirong [2 ]
Wang, Mingyu [1 ]
机构：
[1] Cent South Univ, Sch Met & Environm, Changsha 410083, Peoples R China
[2] Cent South Univ, Sch Architecture & Art, Changsha 410083, Peoples R China
来源：
JOURNAL OF SUSTAINABLE METALLURGY | 2021年 / 7卷 / 03期
关键词：
Spent HDS catalyst; Pressure leaching; Molybdenum; Aluminum; METAL RECOVERY; VANADIUM; MO;
D O I：
10.1007/s40831-021-00420-9
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Molybdenum bearing spent hydrodesulphurization (HDS) catalyst is an important secondary resource. In the present research, the extraction of molybdenum from the roasted spent HDS catalyst was investigated by pressure alkaline leaching using NaOH and Na2CO3, respectively. The process of pressure leaching using Na2CO3 solution was characterized by high extraction of molybdenum, lower aluminum leaching, as well as low cost of mineral decomposition, which make it become the better option. For the process of pressure leaching using Na2CO3, under the optimum conditions of 20 wt% Na2CO3 addition, leaching at 170 degrees C for 30 min with a liquid/solid ratio of 2 mL/g, the leaching of molybdenum reached 95.4%, and the leaching of aluminum was only 0.7%.
引用
收藏
页码：773 / 782
页数：10
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