高硫铝土矿微波脱硫溶出试验  

Test of Desulfurization by Microwave and Digestion of High Sulfur Bauxite

作　　者：梁佰战[1] 陈肖虎[1] 冯鹤[1] 唐晓宁[1] 韩涛[1] 

机构地区：[1]贵州大学材料与冶金学院,贵阳550003

出　　处：《有色金属（冶炼部分）》2011年第3期23-26,共4页Nonferrous Metals（Extractive Metallurgy)

摘　　要：采用微波焙烧脱硫工艺研究了微波加热温度、微波加热时间和矿物粒度对高硫铝土矿中硫含量的影响及氧化铝溶出率的影响;并且依据原矿和微波处理后铝土矿的XRD谱,探讨了高硫铝土矿的脱硫机理。结果表明：微波加热温度为650℃、微波加热时间为5 min、矿物粒度为0.095-0.076 mm时,高硫铝土矿的硫含量可以从4.15%降低到0.37%;在试验条件下,可以使氧化铝的溶出率从80.4%提高到98.7%。The effect of heating temperature,heating time and mineral size on sulfur content adopting the process of microwave desulfurization and digestion performance of bauxite are studied;and according to XRD spectra of raw ore and ore dealt with microwave,the desulfurization mechanism of high sulfur bauxite are also discussed.The results show that sulfur content of high sulfur bauxite is decreased from 4.15% to 0.37% in microwave heating temperature 650℃,microwave heating time 5 min,mineral size 0.095~0.076 mm;under experimental conditions,digestion of alumina can be promoted from 80.4% to 98.7%.

关 键 词：高硫铝土矿 微波 脱硫 溶出率 

分 类 号：TF821[冶金工程—有色金属冶金]