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投稿时间：2020-08-25 修订日期：2020-08-28 录用日期：2020-09-01 网络发布日期：2020-12-03
投稿时间：2020-08-25 修订日期：2020-08-28 录用日期：2020-09-01 网络发布日期：2020-12-03
中文摘要: 以黄金间碧竹叶为还原剂，硫酸为酸性介质，研究黄金间碧竹叶浸出低品位软锰矿的效果。通过单因素试验考察了硫酸浓度、反应时间、反应温度、还原剂的用量、液固比等因素对锰浸出率的影响。通过响应面法探究各反应条件对锰浸出率的综合影响并进行优化。结果表明，各因素影响锰浸出率的顺序依次为反应温度＞硫酸浓度＞竹叶用量＞反应时间。当硫酸浓度为2.37 mol/L、反应时间2.24 h、反应温度98.5 ℃、黄金间碧竹加入量4.97 g、液固比9 mL/g时，锰的浸出率为97.47%。
Abstract:Low-grade pyrolusite was leached in sulfuric acid with leaves of Bambusa Vulgaris as reductant. Effects of sulfuric acid concentration, reaction time, reaction temperature, reductant dosage and L/S on manganese leaching rate were investigated through single-factor experiments. Comprehensive effect of each condition on manganese leaching rate was explored and optimized by response surface method. The results show that sequence of factors on manganese leaching rate is reaction temperature, sulfuric acid concentration, bamboo leaf dosage and reaction time. Manganese leaching rate is 97.47% under the conditions of sulfuric acid concentration of 2.37 mol/L, reaction time of 2.24 h, reaction temperature of 98.5 ℃, Bambusa Vulgaris dosage of 4.97 g, and L/S of 9 mL/g.
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基金项目:2020年广西高校中青年教师科研基础能力提升项目（2020KY06033）
| 作者 | 单位 | |
| 卢友志* | 桂林理工大学南宁分校 | luyzmail@163.com |
| 蒋艳 | 桂林理工大学南宁分校 | |
| 王军正 | 桂林理工大学南宁分校 | |
| 苏李敏 | 桂林理工大学南宁分校 | |
| 岑湘仕 | 桂林理工大学南宁分校 |
| Author Name | Affiliation | |
| LU You-zhi | Guilin University of Technology at Nanning | luyzmail@163.com |
| JIANG Yan | ||
| WANG Jun-zheng | ||
| SU Li-min | ||
| CEN Xiang-shi |
引用文本：
卢友志,蒋艳,王军正,苏李敏,岑湘仕.黄金间碧竹叶浸出低品位软锰矿[J].有色金属（冶炼部分）,2020(12):23-26.
LU You-zhi,JIANG Yan,WANG Jun-zheng,SU Li-min,CEN Xiang-shi.Study on Leaching of Low-grade Pyrolusite with Leaves of Bambusa Vulgaris[J].Nonferrous Metals (Extractive Metallurgy),2020(12):23-26.
卢友志,蒋艳,王军正,苏李敏,岑湘仕.黄金间碧竹叶浸出低品位软锰矿[J].有色金属（冶炼部分）,2020(12):23-26.
LU You-zhi,JIANG Yan,WANG Jun-zheng,SU Li-min,CEN Xiang-shi.Study on Leaching of Low-grade Pyrolusite with Leaves of Bambusa Vulgaris[J].Nonferrous Metals (Extractive Metallurgy),2020(12):23-26.
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