摘要
针对高铁锰矿浸出液铁离子浓度较高的问题,采用黄铵铁矾沉淀法除铁,并使用碳酸锰矿中和沉矾过程所释放的硫酸,研究了反应温度、反应时间、硫酸铵用量和碳酸锰矿用量对除铁率和锰浸出率的影响。结果表明,在反应温度95.0℃、反应时间180min、硫酸铵用量为理论用量的1.3倍、碳酸锰矿用量为12.0g的条件下,除铁率可达95.7%,总锰浸出率为92.9%,碳酸锰矿浸出率为88.3%。
To address high content of ferric iron in leachate of iron rich manganese oxide ores,jarosite precipitation was used to remove iron,and manganese carbonate ore was used to neutralize sulfuric acid produced in jarosite precipitation.Effects of reaction temperature,reaction time,（NH4）2 SO4 dosage,and dosage of manganese carbonate ore on precipitation rate of iron and manganese leaching efficiency were investigated.The results show that iron removal rate is 95.7%,total leaching rate of manganese is92.9%,and leaching rate of manganese carbonate ore is 88.3% under the conditions including reaction temperature of 95 ℃,reaction time of 180 min,（NH4）2 SO4 dosage of 1.3 times of theoretical amount,and dosage of manganese carbonate ore of 12.0 g.
作者
唐明洁
黄炳行
明宪权
任红杰
粟海锋
TANG Ming-jie;HUANG Bing-xing;MING Xian-quan;REN Hong-jie;SU Hai-feng(College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China;CITICDameng Mining Industries Limited, Nanning 530028, China)
出处
《有色金属（冶炼部分）》
CAS
北大核心
2018年第6期16-18,27,共4页
Nonferrous Metals（Extractive Metallurgy)
基金
国家自然科学基金资助项目(51664002)
广西科技计划重大专项(桂科AA16380041)
广西科学技术开发计划项目(桂科攻1598015-4)
崇左市科技计划项目(崇科FA2017002)
关键词
高铁锰矿
碳酸锰矿
黄铵铁矾沉淀
除铁
浸出
iron rich manganese oxide ore
manganese carbonate ore
ammonium jarosite precipitation
ironremoval
leaching
