湿法冶金Issue(6)：461-465,5.DOI:10.13355/j.cnki.sfyj.2015.06.006
木薯渣-硫酸法浸出低品位软锰矿试验研究
Leaching of Manganese From Low-grade Pyrolusite by Cassava Slag-Sulfuric Acid
李珞名 1赵博超 2王雪婷 3黄冠汉 3邓永光 4吴晓丹 4潘涔轩4
作者信息
- 1. 中国矿业大学 北京 化学与环境工程学院，北京 100083
- 2. 中国环境科学研究院 清洁生产中心，北京 100012
- 3. 中国环境科学研究院 清洁生产中心，北京 100012
- 4. 中信大锰矿业有限责任公司，广西 南宁 530028
- 折叠
摘要
Abstract
Leaching of manganese from a low‐grade pyrolusite by cassava slag‐sulfuric acid method is a new technology which uses cassava residue as reducing agent in sulfuric acid medium .Orthogonal experiments were employed to examine the influences of initial concentrations of sulfuric acid ,leaching temperature ,reaction time ,and ratio of solid‐to‐liquid on manganese leaching rate .Results show that influencing order of the main factors on manganese leaching rate is reaction temperature ,initial sulfuric acid concentration ,leaching time ,and ratio of solid‐to‐liquid .The single‐factor experiment results show that the manganese leaching rate rises with the increase of temperature ,initial sulfuric acid concentration ,reaction time and amount of cassava slags .Suitable leaching conditions are determined as temperature of 90 ℃ ,initial sulfuric acid concentration of 200 g/L ,reaction time of 4 hours ,ratio of solid‐to‐liquid 1 ∶ 15 ,mass ratio of cassava slags to pyrolusite of 1 ∶ 6 .79 .Under above conditions ,the manganese leaching rate reaches 97 .32% .关键词
软锰矿/木薯渣/锰/还原/浸出Key words
pyrolusite/cassava slag/manganese/reduction/leaching分类
矿业与冶金引用本文复制引用
李珞名,赵博超,王雪婷,黄冠汉,邓永光,吴晓丹,潘涔轩..木薯渣-硫酸法浸出低品位软锰矿试验研究[J].湿法冶金,2015,(6):461-465,5.
