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碱法从石煤中浸出钒试验研究
引用本文:何东升,冯其明,张国范,欧乐明,卢毅屏,邵延海.碱法从石煤中浸出钒试验研究[J].有色金属(冶炼部分),2007(4):15-17.
作者姓名:何东升  冯其明  张国范  欧乐明  卢毅屏  邵延海
作者单位:中南大学资源加工与生物工程学院,湖南,长沙,410083
摘    要:采用造球—氧化焙烧—碱浸的方法从石煤中浸出钒,考察了焙烧温度、焙烧时间、浸出温度、浸出剂浓度、浸出时间、浸出液固比对浸出率的影响,获得了88.38%的高浸出率。研究表明,焙烧温度、浸出温度、浸出剂浓度、浸出时间是浸出率的重要影响因素。适宜的工艺条件是:焙烧温度850℃、焙烧时间3 h、浸出温度90℃、浸出剂浓度2 mol/L、浸出时间2 h、浸出液固比3。

关 键 词:石煤  焙烧  碱浸  
文章编号:1007-7545(2007)04-0015-03

The Study on Leaching Vanadium from Stone Coal with Alkali
HE Dong-sheng,FENG Qi-ming,ZHANG Guo-fan,OU Le-ming,LU Yi-ping,SHAO Yan-hai.The Study on Leaching Vanadium from Stone Coal with Alkali[J].Nonferrous Metals(Extractive Metallurgy),2007(4):15-17.
Authors:HE Dong-sheng  FENG Qi-ming  ZHANG Guo-fan  OU Le-ming  LU Yi-ping  SHAO Yan-hai
Affiliation:School of Resources Processing and Bioengineering, Central South University, Changsha 410083, China
Abstract:This study used the technique of pelletization-oxidation roasting-alkali leaching to extract vanadium from stone coal,the effects of roasting temperature,roasting time,leaching temperature,leaching agent concentration,leaching time,leaching L/S were investigated.With this technique,it has got a result of leaching rate was as high as 88.38%.The results indicate that roasting temperature,leaching temperature,leaching agent concentration,leaching time were the main factors which affect the leaching rate.The best technique condition is: roasting temperature is 850℃,roasting time is 3h,leaching temperature is 90℃,leaching agent concentration is 2 mol/L,leaching time is 2h,and leaching L/S is 3.
Keywords:Stone coal  Roasting  Alkali eaching  Vanadium
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