摘要
研究了硫酸法钛白粉生产所产出的主要污染物废酸及七水硫酸亚铁作为原料浸出低品位软锰矿的工艺。以锰的浸出率为指标,通过单因素试验,考察了搅拌速率、反应时间、反应温度、硫酸浓度和七水硫酸亚铁浓度等因素对锰浸出率的影响。实验结果表明,最优工艺条件为浸出温度30℃、浸出时间120 min、搅拌速率为200 r·min^(-1)、废硫酸加入量为理论用量的0.9倍,七水硫酸亚铁加入量为理论量的0.9倍,在该条件下,锰的浸出率达到98.5%以上,锰的浸出效果较好。
The process of leaching low-grade manganese ore with waste titanium acid and Iron(Ⅱ)sulfate heptahydrate as raw materials was studied.The leaching rate of manganese was used as an indicator to study,through single-factor experiments,the effects of stirring rate,reaction time,reaction temperature,sulfuric acid concentration,and ferrous sulfate heptahydrate concentration on the manganese leaching rate were investigated.The experimental results indicate that the optimal process conditions were a leaching temperature of 30℃,a leaching time of 120 minutes,a stirring of 200 r·min^(-1),the amount of waste sulfuric acid added was 0.9 times of the theoretical amount,and the amount of ptahydrate ferrous sulfate added was 0.9 times of the theoretical amount.Under these conditions,the leaching rate of manganese reached over 98.5%,indicating a good leaching effect for manganese.
作者
潘蕾
冯惠玲
闭静洁
邓文婷
李阳晴
甘永乐
Pan Lei;Feng Huiling;Bi Jingjie;Deng Wenting;Li Yangqing;Gan Yongle(Baise University,Guangxi,533000)
出处
《当代化工研究》
CAS
2024年第22期171-173,共3页
Modern Chemical Research
基金
广西大学生创新创业训练项目“钛白废酸—七水硫酸亚铁浸出低品位软锰矿的工艺研究”(项目编号:202310609150)。
关键词
软锰矿
硫酸锰
浸出
pyrolusite
manganese sulfate
leaching
作者简介
潘蕾(2002-),女,汉族,广西容县人,本科在读,研究方向:化工环保;通信作者:甘永乐(1982-),男,壮族,广西武宣人,硕士研究生,工程师,研究方向:化工环保。
