黄磷炉渣中硅的有效性及其相关条件研究

STUDY ON THE AVAILABILITY OF SILICON FROM PHOSPHOR DREGS AND THE RELATED CONDITIONS

黄磷炉渣中硅的有效性与pH 密切相关,在ph4.0～7.5范围内,硅的吸收随ph 上升而上升,但pH>7.5以上时,硅吸收受到抑制.随炉渣用量增加pH 值上升,将影响硅吸收。在高氮、磷水平下,有利硅吸收。钾严重影响硅的吸收。

The availability of Si from phosphor dregs was closely correlated with the pH in themedium.The uptake of Si increased with pH in the range of 4.0～7.5 and was depressedwhen pH was over 7.5.Increase in phosphor dreg application resulted in an increase in pHand a decrease in Si uptake.The uptake of Si was promoted by nitrogen and phosphorusapplication and inhibited by potassium.