摘要
采用粉体四氧化三锰为吸附剂,对硫酸锰溶液深度除钼工艺进行了研究。考察了硫酸锰溶液的浓度、溶液的初始pH值、吸附剂的加入量、反应时间及温度等因素对四氧化三锰吸附除钼的影响。结果表明,在硫酸锰浓度为70-200g/L、Mo 1 mg/L左右、溶液初始pH值1.2-2.8、除钼反应温度为80℃左右、反应时间30min及四氧化三锰加入量大于1.33g/L的条件下,四氧化三锰的除钼效果最佳,除钼后溶液的残余Mo浓度均低于0.015mg/L,完全达到生产无汞碱性锌锰电池专用电解二氧化锰的要求。
Powder mangano-manganic oxide is used as adsorbent to deep remove trace molybdenum from manganese sulfate solution. The effects of reaction time, concentration of MnSO4 solution, initial pH, reaction temperature and adsorbent dosage of nascent manganese oxide on adsorption molybdenum in MnSO4 solution are studied. The results, which experiments conducted in MnSO4 solution which concentration is 70--200g/L and molybdenum content is about 1mg/L, show the remainder molybdenum is under 0.015 mg/L under the optimum condition of pH = 1.2--2.8, 30min of adsorption time, 80℃ of reaction temperature, and more than 1.33g/L of adsorbent dosage, the molybdenum concentration in the solution are totally reached the requirement of electrolytic manganese dioxide preparation.
出处
《矿冶》
CAS
2008年第4期24-27,共4页
Mining And Metallurgy
关键词
硫酸锰溶液
粉体
四氧化三锰
吸附
钼
manganese sulfate solution
powder
mangano-manganic oxide
adsorption
molybdenum
作者简介
夏文堂，博士，教授，重庆市高校中青年骨干教师。主要研究方向：矿产资源或二次资源中有价金属的提取及其基础理论；固体废物中有价金属的提取工艺及资源化；工业废水的深度净化处理及其基础理论。
