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首页> 外文会议>第七届国际耐火材料学术会议（ISR2016）论文集 >Effect of Raw Materials Particle Size on the Formation of Mullite by Solid State Reaction
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Effect of Raw Materials Particle Size on the Formation of Mullite by Solid State Reaction

机译：原料粒径对固相莫来石形成的影响

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摘要

M-47 mullite was synthesized by solid phase reaction of Suzhou low-grade kaolin and industrial alumina at 1600℃.The effect of particle size of raw materials on mullite formation was investigated.Particle diameter was measured with laser particle size analyzer and phase structure of the products was examined with XR D.It was showed that the particle size and distribution of raw materials remained unchanged approximately with grinding time over 25h.The content of synthetic mullite phase, with the bulk density of 2.63g/cm3 and porosity of 2.6％,reached 91％ in the synthetic product after 25h grinding of raw materials.By adding 0.5％ calgon as a dispersant and grinding the raw materials for 25h,a better synthetic mullite was obtained with the porosity of 1.8％ and bulk density of 2.65 g/cm3.
机译：苏州低品位高岭土与工业氧化铝在1600℃固相反应合成M-47莫来石。研究了原料粒径对莫来石形成的影响。产物经XRD测定。结果表明，经过25h的粉碎，原料的粒度和分布基本保持不变。合成莫来石相的含量为2.63g / cm3，孔隙率为2.6％。原料经过25h的研磨后，合成产物达到91％。通过加入0.5％的钙gon石作为分散剂并进行25h的研磨，可以获得更好的合成莫来石，其孔隙率为1.8％，堆积密度为2.65 g /立方厘米

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