褐锰矿湿法冶炼工艺研究  

Study on Hydrometallurgical Smelting Technology of Braunite

作　　者：佘宗华[1] 陈文勇[1] 宁顺明[1] 黄臻高[1] 封志敏[1] 

机构地区：[1]长沙矿冶研究院,湖南长沙410012

出　　处：《矿冶工程》2010年第4期65-68,共4页Mining and Metallurgical Engineering

摘　　要：采用含硫32%的黄铁矿精矿作还原剂,以两矿法浸出含锰43.87%的国外某褐锰矿,当原矿/黄铁矿质量比达到0.28,原矿/硫酸质量比达到1.104,在90~95℃,反应6.5~8 h,褐锰矿锰的浸出率可达到90%以上,最高可达到97%。该褐锰矿冶炼技术,全流程通畅,锰的总收率达90.45%。Using the pyrite concentrate containing 32% sulphur as reductant,an abroad braunite containing 43.87% Mn was leached by two-ores method.The leaching rate of manganese in braunite can reach above 90% and the highest can reach 97% under the conditions that the mass ratio of raw ore and pyrite was 0.28,the mass ratio of raw ore and sulfuric acid was 1.104,the temperature was 90～95 ℃ and reaction time was 6.5～8 h.The full flowsheet of this braunite smelting technology was unobstructed and the gross recovery of manganese reached 90.45%.

关 键 词：褐锰矿 两矿法 黄铁矿 浸出 锰 

分 类 号：TF111[冶金工程—冶金物理化学]