摘要
研究了煤矸石加氢氧化铝及氧化铝合成莫来石熟料的可行性。实验表明，采用煤矸石和氢氧化铝可在１５００℃完成莫来石化反应，到１５５０℃可得到接近理论密度的莫来石熟料。采用煤矸石和工业氧化铝（γ－Ａｌ２Ｏ３）反应，可在１５５０℃全部合成莫来石，到１６００℃可得到接近理论密度的莫来石熟料。采用煤矸石加α－Ａｌ２Ｏ３所得样品性能最好，化学成分最纯。
The possibility of producing sintered mullite materials by using coal gangues and α Al 2O 3, industrial A 2O 3 and industrial Al(OH) 3 as raw materials has been studied.The experiments show that mullitization can be finished at about 1 500℃,and at 1 550℃ the samples can be well sintered,for the samples with coal gangues plus industrial Al(OH) 3 For the samples with coal gangues plus industrial Al 2O 3,mullitization can be finished at 1 550℃,and samples can be well sintered at 1 600℃.For the samples with coal gangues plus α Al 2O 3,mullitization can be finished at 1 600℃,and samples can be well sintered at 1 650℃.Samples with coal gangues and α Al 2O 3 have best properties and chemical composition.
出处
《矿物岩石》
CAS
CSCD
北大核心
1998年第4期38-42,共5页
Mineralogy and Petrology
