钾矿与不同钙质原料制备的硅钙钾肥中有效硅的性质对比研究  

Comparative Study of Basic Properties of Available Silicon in Silicon-Calcium-Potassium Fertilizer Prepared from Potash Ore with Different Calcareous Raw Materials

作　　者：王朝军[1,2] 胡宗超[2] 朱云勤[1,2] 胡德庚[1,2] 

机构地区：[1]贵州大学资源化工研究所,贵州贵阳550025 [2]贵州大学化学与化工学院,贵州贵阳550025

出　　处：《化肥工业》2014年第1期57-61,共5页Chemical Fertilizer Industry

摘　　要：以不溶性含钾硅酸盐岩石与不同钙质原料(石灰石、磷石膏和磷石膏钙渣)制备硅钙钾肥,并以水和柠檬酸溶液为浸取液,采用硅钼蓝分光光度法于680 nm波长处测定硅钙钾肥中有效硅的溶出率。采用正交试验设计法探索了影响硅钙钾肥中有效硅溶出的相关因素,对硅钙钾肥的使用和推广具有一定的指导意义。Silicon-calcium-potassium fertilizer is prepared from insoluble potassic silicate rock with different calcareous raw materials （ limestone , phosphogypsum or calcium slag of phosphogypsum ） , water and citric acid solution are used as extracting solution , the available silicon dissolution rate of silicon-calcium-potassium fertilizer is determined by silicomolybdic blue spectrophotometry at 680 nm wavelength .Orthogonal experimental design method is used to study related factors influencing available silicon dissolution rate of silicon-calcium-potassium fertilizer , having a certain guidance meaning for use and popularization of silicon-calcium-potassium fertilizer .

关 键 词：硅钙钾肥 有效硅 溶出率 性质对比 

分 类 号：TQ443.5[化学工程—化学肥料工业]