摘要
根据磷矿系含钾页岩的特点,研究了湿法磷、钾耦合酸浸提钾的工艺条件,在含钾页岩与磷矿的质量配比为0.8,硫酸质量分数为50%,液固比为3,反应温度120℃和反应时间5h的条件下,钾的浸出率达到76.08%。
The process conditions of extracting potassium by wet coupled sulfuric acid and phosphoric acid were investigated in light of the properties of potassium bearing shale in phosphate ore. With mass ration of potassium bearing shale to phosphate ore be- ing 0. 8, ratio of liquid-to-solid 3, concentration of sulfuric acid 50%, reaction temperature 120 ℃ and reaction time 5 hrs,the ex- tracting ratio of potassium could be up to 76.08%.
出处
《化工矿物与加工》
CAS
北大核心
2016年第1期4-7,共4页
Industrial Minerals & Processing
关键词
难溶性钾矿
磷矿
酸浸提钾
热力学
insoluble potassium
phosphate ore
potassium ex-traction by coupled sulfuric acid and phosphoric acid
thermody-namics
