硫酸分解钾长石的探讨  

Study of Decomposition of Potassium Feldspar by Sulfuric Acid

作　　者：黄理承[1] 韩效钊[1] 陆亚玲[1] 王忠兵[1] 李炜 

机构地区：[1]合肥工业大学化工学院,安徽合肥230009 [2]安徽华岳矿物材料有限公司,安徽岳西246660

出　　处：《安徽化工》2011年第1期37-39,共3页Anhui Chemical Industry

基　　金：合肥工业大学华岳矿物钾肥工程技术中心基金(2009QTXM0464)

摘　　要：建立钾长石-硫酸常压水热反应体系,考查了反应温度、硫酸浓度、固液比以及反应时间对反应过程的影响。实验结果表明,硫酸能够分解钾长石,但常压下,硫酸分解钾长石溶出率只能在12%左右。在仅有硫酸和钾长石的常压体系下很难得到较高的钾溶出率。By establishing potassium feldspar-sulfuric acid atmosphere pressure hydrothermal reaction system,we studied how reaction temperature,acid concentration,solid-liquid ratio and reaction time impact on reaction process.The results showed that potassium feldspar could be decomposed by sulfuric acid but only about 12% dissolution rate of potassium under atmospheric pressure which means with only sulfuric acid and potassium feldspar in the atmospheric pressure reaction system,high dissolution rate of potassium can hardly be obtained.

关 键 词：钾长石 硫酸 分解 溶出率 

分 类 号：TQ443.5[化学工程—化学肥料工业]