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

页码：2021 / 2025

页数：5

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