矿产综合利用2024，Vol.45Issue(2)：185-189,5.DOI:10.3969/j.issn.1000-6532.2024.02.030
某三水型铝土矿中镓和钪的浸出研究
Study on Leaching of Gallium and Scandium from a Gibbsite-Type Bauxite
摘要
Abstract
This is an article in the field of metallurgical engineering.There are high contents of gallium and scandium in bauxite,which has great recovery value.The study on the leaching behavior of gallium and scandium in bauxite leaching process is of great significance for the extraction and utilization of gallium and scandium.The leaching behavior of gallium and scandium from gibbsite bauxite was studied.The results showed that gallium was easy to be leached into the solution.Increasing the temperature,prolonging the reaction time and increasing the mass concentration of sodium hydroxide were conducive to the leaching of gallium.The leaching rate of gallium could reach over 73％,and adding calcium oxide reduced the leaching rate of gallium.The gallium content in the solution was accumulated during the cyclic digestion process.After 3 cycles,the gallium concentration in the decomposition mother liquor reached 24.2 mg/L.Both red mud and decomposition mother liquor had high gallium content and had recycling value.Scandium was not easy to be leached.After digestion,97.4％of scandium was enriched in red mud.The object of scandium recovery and extraction was mainly red mud.关键词
冶金工程/氧化铝/镓/钪/浸出/赤泥Key words
Metallurgical engineering/Alumina/Gallium/Scandium/Leaching/Red mud分类
矿业与冶金引用本文复制引用
蒋常菊,雷占昌,范志平..某三水型铝土矿中镓和钪的浸出研究[J].矿产综合利用,2024,45(2):185-189,5.基金项目
青海省科技计划项目(2021-ZJ-755) （2021-ZJ-755）
