Pressure Leaching of Limonitic Laterite Ores in H2SO4-Mg(NO3)2 Medium

被引：0
|
作者：
Ma, Baozhong [1 ]
Wang, Chengyan [1 ]
Yang, Weijiao [1 ]
Yin, Fei [1 ]
Chen, Yongqiang [1 ]
机构：
[1] Beijing Gen Res Inst Min & Met, Beijing 100070, Peoples R China
来源：
NATURAL RESOURCES AND SUSTAINABLE DEVELOPMENT II, PTS 1-4 | 2012年 / 524-527卷
关键词：
Limonitic laterite Ores; H2SO4-Mg(NO3)(2) Medium; Pressure Leaching; Nickel; Cobalt;
D O I：
10.4028/www.scientific.net/AMR.524-527.2021
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A limonitic laterite ore from Indonesea was treated by pressure leaching in H2SO4-Mg(NO3)(2) medium, using Mg(NO3)(2) as an oxidant. Experiments were conducted in order to determine the optimum conditions by studying various parameters, including Mg(NO3)(2)/ore mass ratio, initial acidity, reaction temperature, holding time and liquid/solid ratio. Pressure leaching experiments showed that nickel, cobalt and iron extractions were 90.8 %, 91.9 % and 2.1 % after 60 min of leaching at 493 K with 0.06 g/g Mg(NO3)(2)/ore mass ratio, 140 g/L initial acidity and 2 mL/g liquid/solid ratio.The total decrement of acid consumption was 72 g H2SO4/kg ore in the presence of Mg(NO3)(2).
引用
收藏
页码：2021 / 2025
页数：5
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