摘要
利用天然二氧化锰粉与硫化锰精矿为原料制备高纯一水硫酸锰,并取得了初步成功。其最优工艺为:以二氧化锰与硫的摩尔比为2.25∶1,在温度90℃条件下浸出3 h后,除渣,再用A试剂1.5倍理论用量除去硫酸锰溶液中的钾钠,按工业硫化钡1.5倍理论用量除去各重金属,用氟化锰5倍理论用量除去钙镁后蒸发结晶烘干,得到高纯一水硫酸锰产品。
By using natural manganese dioxide powder and manganese sulfide to concentrate the preparation of high purity manganese sulfate monohydrate, we have achieved an initial success. Its optimal technology is off slag with oxidation Mn and sulfur of mole ratio of 2.25： 1 in temperature 90 C conditions to dip out after 3 h. Then, again with 1.5 times volume A reagents to work off sulfuric acid Mn solution in potassium sodium, with 15 times industrial sulfide barium dosage to drop heavy metal, we can get the product of high purity manganese sulfate monohydrate, finally with 5 times fluoride of Mn in calcium and magnesium after evaporation crystal drying.
出处
《中国锰业》
2013年第4期30-32,共3页
China Manganese Industry
关键词
高纯硫酸锰
硫化锰
氟化锰
High-purity manganese sulfate
Manganese sulfide
Manganese fluoride
