Scholarlink

<p>In Africa, active magnesium oxide is crucial for cobalt extraction, particularly in the Democratic Republic of the Congo (DRC), necessitating comprehension of metal hydroxide product (MHP) precipitation mechanisms. Therefore, magnesium oxide’s reactivity is critical for cobalt precipitation, with high-purity magnesia from salt lake brine demonstrating notable efficacy. This study investigates the reactivity of magnesium oxide produced by light calcination of magnesium hydroxide from the salt lake brine-ammonia-lime method in China and its impact on the MHP process in DRC copper-cobalt mines. A reactivity index was proposed based on various properties of magnesia to evaluate MHP process performance. Additionally, the study compares the precipitation performance of salt-lake-based versus mineral-based magnesia, providing guidance for managing diverse and resilient cobalt precipitation magnesia supply chains.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Impact of Salt-Lake-Based Magnesia Reactivity to Cobalt Precipitation on Copper-Cobalt Mines, DRC

  • 期刊论文

  • 发表日期：

    2026年1月28日

查看全文
  • Yuqiang Chen,
  • Yujie Zhao,
  • Michael Kabangu Ngoie,
  • Xiangyang Lu,
  • Lei Song,
  • Cunjian Weng,
  • Jun Yan,
  • Wei Sun,
  • Shafiq Alam,
  • Weiping Liu

摘要

In Africa, active magnesium oxide is crucial for cobalt extraction, particularly in the Democratic Republic of the Congo (DRC), necessitating comprehension of metal hydroxide product (MHP) precipitation mechanisms. Therefore, magnesium oxide’s reactivity is critical for cobalt precipitation, with high-purity magnesia from salt lake brine demonstrating notable efficacy. This study investigates the reactivity of magnesium oxide produced by light calcination of magnesium hydroxide from the salt lake brine-ammonia-lime method in China and its impact on the MHP process in DRC copper-cobalt mines. A reactivity index was proposed based on various properties of magnesia to evaluate MHP process performance. Additionally, the study compares the precipitation performance of salt-lake-based versus mineral-based magnesia, providing guidance for managing diverse and resilient cobalt precipitation magnesia supply chains.