富钾碱性粗面岩在焙烧过程中矿物结构变化研究

STUDY OF THE MINERAL TEXTURAL CHANGES OF KALIUM-RICH ALKALI TRACHYTE IN ROASTING PROCESS

应用 X衍射、化学分析结果和物理化学分析方法 ,研究富钾粗面岩在不同温度下焙烧所发生的矿物成分和结构变化及其变化机理。富钾粗面岩中钾长石向白榴石的转化率在 1 1 0 0℃以前主要受焙烧温度控制 ;在 1 1 0 0℃以后则受其后的降温速度控制。钾在不同温度焙烧样料中的活性与其中肥料矿物的含量呈正相关。

By using the methods of XRD and physical chemical analysis ,the results have revealed the changes in components and textures and mechanisms of alkali trachyte at different temperatures when roasting The conversion ratio of potassic feldspar to leucite in alkali trachyte is mainly controlled by temperature when it is less than 1 100℃ and by the cooling velocity of temperature when it is over 1 100℃ The activity of kalium in the roasted samples under different temperatures is positive correlation with kalium content in fertilizer minerals