摘要
针对一水硬铝石型铝土矿,以河南高硫矿和贵州织金马场高硫矿为除锌用的原料,对高硫铝土矿的硫的物相进行了研究,确定矿石中硫的主要存在形态.在此基础上,在平果铝土矿溶出时,分别混合不同比例的河南高硫铝土矿和贵州高硫矿,探索两种铝土矿在溶出过程中的除锌效果.研究结果表明:在铝土矿溶出过程中添加高硫铝土矿除锌,其中以黄铁矿作为硫的主要存在形态的河南高硫矿具有较好的除锌效果,而以硫酸盐作为硫的主要形态的贵州高硫矿则无效;河南高硫矿添加量占总矿石的比例在10%～20g%之间时,除锌效果最好,此时可将溶出液中锌含量减少到0.015g/L以下;添加高硫铝土矿除锌可以使过去认为无工业利用价值的高硫矿获得重新利用.
Using high sulfur bauxite from Henan province and high sulfur bauxite from zhi jin ma chang district of Guizhou province as materials of removal of zinc, the study on the phase of sulfur from the diasporic high sulfur bauxite was first studied and the primary form of sulfur was confirned. Based on these, the effect of removal of zinc was studied during the digestion process of Ping guo bauxite when the different proportion Henan bauxite and Guizhou bauxite were respectively added to the slurry. The results showed that when high sulfur bauxite was added to the slurry to remove Zinc during the digestion process of bauxite, it could effectively remove Zinc using Henan high sulfur bauxite in which sulfur existed in the form of sulfide, but using Guizhou high sulfur bauxite in which sulfur existed in the form of sulfate could not; The effect was the best when Henan high sulfur bauxite was 10% ～ 20g% of the total ores, under this condition, the zinc content in aluminate solution was reduced down to 0.015g/L; It can reuse high sulfur bauxite which could not be made industrial use in the past to remove zinc. 3figs., 4tabs., 11 refs.
出处
《湖南科技大学学报（自然科学版）》
CAS
北大核心
2009年第2期79-83,共5页
Journal of Hunan University of Science And Technology：Natural Science Edition
基金
国家自然科学基金资助项目(20876038)
关键词
高硫铝土矿
除锌
溶出
high sulfur bauxite
removal of zinc
digestion.
