摘要
对新疆海相沉积型锰矿进行了浸出实验研究,考察了酸矿比、浸出温度、浸出时间和矿石粒度对矿石中锰浸出率的影响。结果表明:升高浸出温度和延长浸出时间,可有效实现溶液中硅与锰元素的分离,并有利于形成大颗粒沉淀物、提高过滤速度;在矿石粒度-150μm、酸矿比0.56、常温下浸出4 h,锰浸出率可达86.32%,浸出渣率61.12%,硫酸锰浸出液中锰离子质量浓度41.29 g/L。
An experimental research was carried out on leaching of marine sedimentary manganese deposit from Xinjiang,and effects of acid-to-ore ratio,leaching temperature,leaching time,and ore particle size on manganese leaching rate were investigated.The results indicate that effective separation between elements of silicon and manganese in the solution can be actualized by increasing leaching temperature and prolonging leaching time,which can also benefit the formation of large-particle precipitates and enhancement of filtering speed.After manganese ores with particle size of-150 μm are leached at room temperature for 4 hours,with acid-to-ore ratio of 0.56,the manganese leaching rate can be up to 86.32% and a leaching residue rate is 61.12%,while the mass concentration of manganese ions in the manganese sulfate leachate is 41.29 g/L.
作者
周新锋
万凌云
马晓磊
何利华
王昊鹏
张小慧
胡馨文
ZHOU Xinfeng;WAN Lingyun;MA Xiaolei;HE Lihua;WANG Haopeng;ZHANG Xiaohui;HU Xinwen(Xinjiang Nonferrous Metals Research Institute Co.,Ltd.,Urumqi 830009,Xinjiang,China;Akto Kebang Manganese Industry Manufacturing Co.,Ltd.,Akto 845550,Xinjiang,China;School of Metallurgy and Environment,Central South University,Changsha 410083,Hunan,China)
出处
《矿冶工程》
CAS
北大核心
2024年第6期94-98,共5页
Mining and Metallurgical Engineering
基金
新疆维吾尔自治区重点研发计划(2022B01040-1)。
关键词
海相沉积型锰矿
碳酸锰
浸出
锰
锰硅分离
marine sedimentary manganese deposits
manganese carbonate
leaching
manganese
separation of manganese and silicon
