电解锰渣洗液可控制备类球形Mn3O4的研究  

Preparation of Spherical Mn3 O4 from Washing Solution of Electrolytic Manganese Residue

作　　者：付德进 王海峰[1,2,3] 勾碧波 李明东 王芹 黄碧芳[1,2] 王家伟 FU Dejin;WANG Haifeng;GOU Bibo;LI Mingdong;WANG Qin;HUANG Bifang;WANG Jiawei(College of Materials and Metallurgy,Guizhou University,Guiyang 550025,Guizhou,China;Guizhou Key Laboratory of Metallurgical Engineering and Process Energy Conservation,Guiyang 550025,Guizhou,China;Guizhou Provincial Engineering Technology Research Center of Manganese Materials for Batteries,Tongren 554300,Guizhou,China)

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550025 [2]贵州省冶金工程与过程节能重点实验室,贵州贵阳550025 [3]贵州省电池用锰材料工程技术研究中心,贵州铜仁554300

出　　处：《矿冶工程》2023年第2期135-139,共5页Mining and Metallurgical Engineering

基　　金：国家自然科学基金(51864012);贵州省科学合作计划项目([2019]1411);铜市科研(2021)13号。

摘　　要：以硫酸锰溶液为原料,采用空气为氧化剂,原位制备类球形四氧化三锰,研究了反应时间、反应温度、溶液pH值和空气流量等对合成产物性能的影响。结果表明,适宜的合成条件为:反应时间6 h、反应温度80℃、溶液pH=9、空气流量20 L/min,此时制备的四氧化三锰结晶度高,微观形貌为规则类球形颗粒,分散性较好,颗粒大小均匀,粒径约为150 nm,比表面积9.85 m^(2)/g,振实密度1.93 g/cm^(3)。A kind of spherical Mn3O4 was prepared in situ with manganese sulfate solution as raw material and air as oxidant,and the effects of factors,such as time and temperature of reaction process,the pH value of solution and air flow rate,on the properties of synthesized product were investigated.It is found that under the appropriated conditions,including reaction time of 6 h and reaction temperature of 80℃,pH of 9 for the solution and air flow rate at 20 L/min,the synthesized Mn3O4 has a micro⁃morphology of regular nano⁃spherical particles in a uniform size around 150 nm,showing a high crystallinity and a good dispersion.Its specific surface area is 9.85 m^(2)/g and the tap density is 1.93 g/cm^(3).

关 键 词：硫酸锰 球形 四氧化三锰 电解锰渣 氧化剂 

分 类 号：TB302[一般工业技术—材料科学与工程]