富钾页岩酸浸提钾实验  

RESEARCH OF EXTRACTING POTASSIUM FROM POTASSIUM-RICH SHALE BY SULFURIC ACID

作　　者：刘杰[1] 韩跃新[1] 印万忠[1] 

机构地区：[1]东北大学资源与土木工程学院,沈阳110004

出　　处：《矿冶》2008年第1期38-41,共4页Mining And Metallurgy

基　　金：教育部新世纪优秀人才资助项目(NCET-05-0291)

摘　　要：针对朝阳地区富钾页岩进行酸浸提钾的实验研究。在适宜的条件下对富钾页岩进行焙烧预处理,对焙烧产物进行酸浸提钾的条件实验,确定了适宜的酸浸提钾条件为:液固比为3,硫酸浓度为33.03%,浸出温度为80℃和浸出时间为1h。在此条件下,钾的浸出率可达88.08%。通过XRD分析,初步确定了在酸浸过程中的主要物相变化规律及反应机理。The experiment of extracting potassium from the potassium-rich shale by sulfuric acid in Chaoyang is completed. First, the potassium-rich shale is roasted in suitable roasting conditions, And then the extracting potassium experiments are done under the suitable extracting conditions, which are as follows： the ratio of liquid-to-solid is 3, concentration of sulfuric acid is 33.03 %, extracting temperature is 8052, and extracting time is 1h. Extracting ratio of potassium of 88.08 % is obtained. Variable law of phase is analyzed by XRD, and then reaction mechanism of extracting potassium by sulfuric acid is determined.

关 键 词：富钾页岩 酸浸提钾 反应机理 

分 类 号：TF826.1[冶金工程—有色金属冶金]