(湘潭大學化工學院，湘潭411105)
摘 要: 以生物制劑KZSH01作為還原劑與鐵錳多金屬礦發(fā)生氧化還原反應，研究了鐵錳礦的細度和還原劑的含量對還原效果的影響，考察了還原過程中溫度和物相的變化，探討了H2SO4用量對Mn和Zn浸出效果的影響。結果表明：生物還原劑KZSH01可使鐵錳礦中93.0%MnO2轉化為MnO，90.0%Fe2O3轉化為Fe3O4；Mn和Zn的浸出率均大于90.0%；Fe的磁選回收率大于85.0%，79.0%Pb和82.5%Ag富集在渣中。
關鍵字: 生物制劑；鐵錳礦；還原劑；磁選；浸出
（ School of Chemical Engineering,
Xiangtan University, Xiangtan 411105, China）
Abstract: Biological agent KZSH01 was used as a reductant to deoxidize ferromanganese dioxide ore containing MnO2, Fe2O3, Pb, Zn and Ag. The influence of the ore fineness and the reductant content on the deoxidization process was studied. The variety of temperature and content in deoxidization of the ore and H2SO4 dosage on the leaching effects of Mn and Zn were investigated. The results show that 93.0% MnO2 and 90.0% Fe2O3 are deoxidized to MnO and Fe3O4, respectively. The leaching rate of Mn and Zn are larger than 90.0%. The magnetic separation recovery rate of Fe is 85.0%, and 79.0% Pb and 82.5% Ag are concentrated in the residue.
Key words: biological agent; ferromanganese ore; reductant; magnetic separation; leaching
