| 131 | 0 | 20 |
| 下载次数 | 被引频次 | 阅读次数 |
研究了在不添加还原剂条件下，采用硫酸从低品位碳酸锰矿中浸出锰。通过单因素试验，考察了矿物粒度、硫酸浓度、液固体积质量比等关键参数对锰浸出率的影响规律，并优化了循环浸出工艺。结果表明：在矿石粒度-300μm～+150μm占比≥95%、硫酸浓度5.5mol/L、反应温度60℃、每次循环浸出时间30min、液固体积质量比4∶1条件下浸出4次后，锰平均浸出率为98.35%，浸出液中Mn质量浓度为101.62g/L。所得浸出液中锰与杂质的比例协调，溶液成分与国外进口碳酸锰矿浸出液成分相当，可为下一步锰深加工提供合格料液。
Abstract：The leaching of manganese from low-grade manganese carbonate ore by sulfuric acid without reducing agent was studied.The effects of key parameters such as mineral particle size,sulfuric acid concentration and liquid volume to solid mass ratio on the leaching rate of manganese were investigated by single factor test,and the cyclic leaching process was optimized.The results show that under the conditions of ore particle size-300μm-+150μm proportion≥ 95%,sulfuric acid concentration of5.5 mol/L,reaction temperature of 60 ℃,each cycle leaching time of 30 min,liquid volume to solid mass ratio of 4∶1,and 4 extraction cycles of leaching,the average leaching rate of manganese is98.35%,and the mass concentration of manganese in the leaching solution is 101.62g/L.The proportion of manganese and impurities in the leaching solution is coordinated,and the solution composition is equivalent to the solution composition obtained by the leaching of imported manganese carbonate ore,which can provide qualified feed solution for the next step of manganese deep processing.
[1]向朝玉，赵云浩，胡平，等．低品位碳酸锰矿制备高纯硫酸锰前端浸出研究[J]．冶金与材料，2020,40(1):1-2.XIANG Chaoyu,ZHAO Yunhao,HU Ping,et al.Research on front-end leaching for preparing high-purity manganese sulfate from low-grade carbonate manganese ore[J].Metallurgy and Materials,2020,40(1):1-2.
[2]邓强，陈文祥，黄苑龄，等．遵义高铁硫低品位碳酸锰矿石选别试验[J]．金属矿山，2017(7):82-88.DENG Qiang,CHEN Wenxiang,HUANG Yuanling,et al.Beneficiation of a low-grade manganese carbonate ore with high iron and sulfur in Zunyi[J].Metal Mine,2017(7):82-88.
[3]万凌云，张小慧，周新锋，等．新疆高品位菱锰矿浸出工艺研究[J]．有色金属（冶炼部分），2025(12):28-37.WAN Lingyun,ZHANG Xiaohui,ZHOU Xinfeng,et al.Study on the leaching process of high-grade rhodochrosite in Xinjiang[J].Nonferrous Metals(Extractive Metallurgy),2025(12):28-37.
[4]包玺琳，李国栋，巩明辉．某低品位菱锰矿硫酸浸出—金属离子杂质脱除试验研究[J]．金属矿山，2017,46(12):54-57.BAO Xilin,LI Guodong,GONG Minghu.Research of metal ions impurities removing and sulfuric acid leach of a lowgrade rhodochrosite[J].Metal Mine,2017,46(12):54-57.
[5]杨创，张覃，李龙江，等．贵州某低品位碳酸锰矿选矿提锰研究[J]．有色金属（选矿部分），2020(3):58-66.YANG Chuang,ZHANG Qin,LI Longjiang,et al.Study on the separation of manganese from a low-grade manganese carbonate ore in Guizhou[J].Nonferrous Metals(Mineral Processing Section),2020(3):58-66.
[6]王天雄，刘京，范玉英．菱锰矿浸出液制备电池级硫酸锰的技术研究[J]．中国锰业，2015,33(2):22-25.WANG Tianxiong,LIU Jing,FAN Yuying.Study on preparation of battery grade manganese sulfate with rhodochrosite leachate[J].China′s Mangannese Industry,2015,33(2):22-25.
[7]陈南雄，廖赞伟，邓永光，等．电解二氧化锰生产中贫锰矿浸取工艺的优化[J]．中国锰业，2009,27(4):44-47.CHEN Nanxiong,LIAO Zanwei,DENG Yongguang,et al.Optimize the leaching process of producing electrolyticmanganese dioxide from rhodochrosite[J].China′s Mangannese Industry,2009,27(4):44-47.
[8]吴扬雄．碳酸锰矿硫酸浸出过程中锰及杂质元素的热力学行为初探[J]．中国锰业，2000,18(2):40-42.WU Yangxiong.Rsearch on thermodynamic behaviour of manganese and impurity element duringthe process of sulfuric acid leaching of manganese carbonate[J].China′s Mangannese Industry,2000,18(2):40-42.
[9]NAKAMURA H,MAKION S,ISHII M.Effects of electrostatic interaction on rheological behavior and microstructure of concentrated colloidal suspensions[J].Colloids and Surfaces:A,2021,623:126576.
[10]ZENG G S,ZHU Y G,CHEN W.A brief review of microparticle slurry rheological behavior in grinding and flotation for enhancing fine mineral processing efficiency[J].Minerals,2023,13(6):13060792.
[11]FARROKHPAY S.The importance of rheology in mineral flotation:a review[J].Minerals Engineering,2012,36:272-278.
[12]POKROVSKY O S,GOLUBEV S V,SCHOTT J.Dissolution kinetics of calcite,dolomite and magnesite at 25Cand0to 50atm pCO2[J].Chemical Geology,2005,217(3/4):239-255.
[13]张宁宁，李亚东，林国，等．强化针铁矿法除铁的研究现状和进展[J]．工程科学学报，2026,48(4):734-749ZHANG Ningning,LI Yadong,LIN Guo,et al.Research progress of enhanced iron removal by the goethite process[J].Chinese Journal of Engineering,2026,48(4):734-749.
[14]袁明亮，庄剑鸣，陈荩．菱锰矿常温浸出法及其动力学研究[J]．中国锰业，1994,12(4):28-31.YUAN Mingliang,ZHUANG Jianming,CHEN Jin.The leaching of rhodochrosite at ordinary temperatures and leaching kinetics[J].China′s Mangannese Industry,1994,12(4):28-31.
[15]王垣智，彭俊，张喜龙，等．低品位碳酸锰精矿硫酸直接浸出行为研究[J]．矿冶工程，2025,45(2):147-151.WANG Yuanzhi,PENG Jun,ZHANG Xilong,et al.Direct sulfuric acid leaching behavior of low-grade manganese carbonate concentrate[J].Mining and Metallurgical Engineering,2025,45(2):147-151.
[16]罗琳，魏江涛，周向葛，等．低品位菱锰矿浸出锰的工艺条件研究[J]．化学研究与应用，2009,21(8):1104-1107.LUO Lin,WEI Jiangtao,ZHOU Xiangge,et al.Research on technological conditions of low-grade rhodochrosite leaching manganese[J].Chemical Research and Application,2009,21(8):1104-1107.
[17]毛拥军，张茂．石油焦还原焙烧进口软锰矿的工艺研究[J]．矿冶工程，2020,40(5):91-93.MAO Yongjun,ZHANG Mao.Process of reduction roasting with petroleum coke for imported pyrolusite[J].Mining and Metallurgical Engineering,2020,40(5):91-93.
[18]谭力铭，胡慧萍，廖俊梅，等．溶剂萃取法制备电池级高纯硫酸锰[J]．有色金属（冶炼部分），2014(9):62-65.TAN Liming,HU Huiping,LIAO Junmei,et al.Preparation of high-purity manganese sulfate for battery by solvent extraction[J].Nonferrous Metals(Extractive Metallurgy),2014(9):62-65.
基本信息:
DOI：10.13355/j.cnki.sfyj.2026.03.015
中图分类号:TF792
引用信息:
[1]严丹阳,唐朝波,杨建广,等.低品位碳酸锰矿循环浸出富集锰工艺研究[J].湿法冶金,2026,45(03):399-407.DOI:10.13355/j.cnki.sfyj.2026.03.015.
基金信息:
贵州省中低品位碳酸锰矿高效采选冶技术（[2024]017）
2026-03-10
2026-03-10
2026-03-10