Scholarlink

<p>Active magnesia is extensively utilized as a precipitant in the production of MHP (mixed hydroxide precipitates) from Cu-Co leaching solutions. However, the primary challenges associated with the magnesia precipitation method include the high magnesium impurity in MHP and the substantial consumption of MgO. Therefore, the impact of ultrasonics on the removal of magnesium impurities from cobalt hydroxide using active magnesia as a precipitant was systematically examined. Various factors were analyzed, including reaction time, MgO/Co ratio, reaction temperature, MgO slurry density, cobalt concentration, and solution agitation speed, with consideration given to cobalt recovery and cobalt and magnesium grades in the MHP product. Notably, with ultrasound treatment, the optimal conditions achieved a decrease in magnesium grade to 0.3%, a cobalt grade of 50.0%, and a cobalt recovery of 99.0%. These results demonstrate a promising strategy for the removal of magnesium impurities with minimal MgO consumption in the production of MHP from Cu-Co ore hydrometallurgical processes.</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

Application of Ultrasonic in the Removal of Magnesium Impurity During Cobalt Precipitation by Active Magnesia

  • 期刊论文

  • 发表日期：

    2025年7月7日

查看全文
  • Weiping Liu,
  • Michael Kabangu Ngoie,
  • Yujie Zhao,
  • Junfeng Cheng,
  • Jinhui Li,
  • Fang Wu,
  • Wei Sun,
  • Arthur Kaniki Tshamala

摘要

Active magnesia is extensively utilized as a precipitant in the production of MHP (mixed hydroxide precipitates) from Cu-Co leaching solutions. However, the primary challenges associated with the magnesia precipitation method include the high magnesium impurity in MHP and the substantial consumption of MgO. Therefore, the impact of ultrasonics on the removal of magnesium impurities from cobalt hydroxide using active magnesia as a precipitant was systematically examined. Various factors were analyzed, including reaction time, MgO/Co ratio, reaction temperature, MgO slurry density, cobalt concentration, and solution agitation speed, with consideration given to cobalt recovery and cobalt and magnesium grades in the MHP product. Notably, with ultrasound treatment, the optimal conditions achieved a decrease in magnesium grade to 0.3%, a cobalt grade of 50.0%, and a cobalt recovery of 99.0%. These results demonstrate a promising strategy for the removal of magnesium impurities with minimal MgO consumption in the production of MHP from Cu-Co ore hydrometallurgical processes.