老挝阿速坡Ⅱ号矿区铝土矿资源质量特征分析
2021-07-28姚静武
姚静武


摘 要:通过分析老挝阿速坡Ⅱ号矿区铝土矿资源的质量,揭示该矿区铝土矿资源类型为红土型铝土矿,具有资源储量较大、分布范围广特征;矿体覆盖浅、地势平缓、开采条件好,易于露天开采,有利于大型机械作业;矿石类型为三水铝土矿,性质简单易洗、品质较好;根据该矿区铝土矿资源的储量和品位,确定该区铝土矿资源具有中铝、高铁、低硅与高铝硅比(Al2O3 47.00%,SiO2 2.80%,Fe2O3 18.95%,A/S 16.79)特征,矿石质量稳定,能满足中国氧化铝工业生产需要,有较大的开采价值。
关键词:阿速坡 Ⅱ号矿区 三水铝土矿 质量特征
中图分类号:P618.45 文献标识码:A文章编号:1672-3791(2021)04(a)-0082-04
Analysis on Quality Characteristics of Bauxite Resources of Ⅱ Mining Area in Attapu, Laos
YAO jingwu
(Yulin Normal University, Yulin, Guangxi Zhuang Autonomous Region, 537000 China)
Abstract: This paper analyze the quality characteristics of bauxite resources in Ⅱ mining area in Attapu, Laos. through the analysis to reveal that the bauxite resource type of Ⅱ mining area is laterite bauxite, They're all gibbsite, The ore properties are simple and easy to wash, and the reserves is larger, better quality, The orebody mining conditions are good, it is easy to strip mining,and it is conducive to operate by large-scale machinery; At the same time, this paper analyzes the bauxite resources and quality grade of Ⅱ mining area; Finally, it is concluded that the bauxite resources in this area has a characteristic of middle Al, high Fe, low Si, high ratio of Al to Si (Al2O3 47.00%, SiO2 2.80%, Fe2O3 18.95%, A/S 16.79), wide extension, large reserves, little overlay, flat terrain and so on, with stable quality and great mining value, suitable for China's alumina production.
Key Words:Attapu;Ⅱ mining area;Gibbsite;Quality characteristics
1 矿区地理与自然概况
1.1 地理概况
老挝阿速坡矿区(以下简称Ⅱ号矿区)位于色贡省与阿速坡省交界处,矿区绝大部分面积属阿速坡省西北部高原山区,矿区面积128 km2。该矿区距老挝首都万象(Vientiane)688 km,距老挝占巴塞省首府巴色(Pakse)195 km。自Ⅱ号矿区经过老越边境南江口岸至越南岘港(Da Nang)全程215 km。其中Ⅱ号矿区至老越边境南江口岸70 km公路目前为泥土路面,16號公路过南江口岸后进入越南公路,口岸至岘港145 km。
1.2 矿区自然概况
Ⅱ号矿区所在区域气候属热带季风型气候区,年平均气温在20 ℃~30 ℃之间,最凉月(10~11月)平均气温21 ℃,最热月(5~8月)平均气温29 ℃左右,季节差别大。全年分旱、雨两季,旱季为11月至次年4月,雨季集中在5~10月。年平均降雨量3 743 mm,最大降雨量达3 987 mm。另据色贡省地矿局及色贡省政府了解,该区域近50年内未发生5级以上地震,历史上也未见地震记录,据此初步确定该区地震设防烈度为6度区域。……
