摘 要：用红外光谱对煤灰中的矿物组成分析表明：随着灰化温度的升高，矿物中水的 特征峰逐渐消失，高岭石转变为莫来石；碳酸盐矿物逐渐分解。助熔剂A、B、C 易与煤灰中 其它矿物形成钠长石、铁尖晶石、铁橄榄石、赤铁矿、钙长石、硬石膏等助熔矿物，从而降 低煤灰熔融性。
Abstract：The mineral composition and mineral transformation of coal ash w ere inv estagated by FTIR It is shown that, as the ashing temperature go up, the water peak at wavenumber 3452cm1, 1640 cm1 disappears gradually, the mullite deriv ed from kaoliNIte was formed at peak wavenumber 1100 cm-1、695 cm-1、563 cm-1、 470 cm-1, the transimittance of carbonate decrease gradually Fluxes of A, B and C which react with other minerals in coal ash to form plagioclase, fayalite, hercy nite, gehlenite, anhydrite at high temperature can lower the ash fusion temperat ure effectively.
