中铝河南分公司矿山在土地复垦中的有益探索

分析了铝土矿露天开采和土地、环境之间的利害关系，并对矿山公司“土地复垦”工艺技术进行了阐述，介绍了中铝河南分公司矿山公司方面的具体作法和成功经验。     

我国铝土矿资源综合分析

综合分析了我国铝土矿资源分布格局、矿床特征和矿石特点及其对氧化铝工业的决定性制约作用,为我国铝工业"十·五"及其远景规划提供资源基础资料与建议.     

STA同步热分析在硫铝酸盐水泥生产中的应用

采用STA同步热分析仪研究了铝矾土、水泥生料、石膏、水化水泥等在加热过程中的热效应及重量变化特征,以及水泥石膏结晶水受温度及加热方式对水泥性能影响,水泥水化为水泥石过程中氢氧化钙的形成及分解机理。进而为指导工业生产硫铝酸盐水泥生料配料,回转窑煅烧工艺参数控制等提供理论依据。     

高铁三水铝石型铝土矿的烧结特性

以Al2O3含量为26.35%,总Fe含量为31.22%,铝硅比为3.17的某高铁三水铝石型铝土矿为原料,研究了碱度、焦粉用量、混合料水分等对烧结矿质量指标的影响。结果表明:烧结矿碱度增加时,其转鼓强度和成品率下降,烧结矿自粉化程度加重;焦粉用量增加时,烧结矿转鼓强度和成品率提高;当混合料水分为9.0%、焦粉用量为8.0%、烧结矿碱度为4时,烧结矿转鼓强度为69.1%,成品率为81.2%,垂直烧结速度为30 mm/min,利用系数为1.2 t/(h.m2);烧结矿碱度为4时,样品存放2天粉化率为5%,烧结矿平均粒度由22.2 mm减小到21.9 mm,延长存放时间,烧结矿自粉化率增大,平均粒度显著减小。该烧结矿的冶金性能能基本满足高炉冶炼的要求。     

铝矾土陶瓷材料的试制

利用丰富的铝矾土原料在1350℃的烧成温度下试制出一种热稳定性极好的陶瓷材料。     

Bauxite residue (red mud) increases phosphorus retention in sandy soil catchments in Western Australia

The Peel-Harvey estuary on the Swan Coastal Plain, Western Australia has become eutrophic partly because of the leaching of fertiliser phosphorus from sandy soils. The acid, coarse textured sandy soils are predominantly quartz, have a low iron and aluminium content and do not retain phosphorus. Red mud, derived from bauxite, is a by-product of the alumina industry and has the ability to retain phosphorus. Retention of phosphorus is enhanced when the red mud is neutralised with gypsum. Red mud has been suggested as a soil amendment to reduce phosphorus leaching.To investigate the reduction in the leaching of phosphorus from soils amended with red mud, weirs were constructed at the outlets from a pair of catchments to quantify the amount of phosphorus in the streamflow. Both catchments were deep grey Bassendean sand. One of the catchments was treated with 80 t/ha of red mud which had been neutralised with waste gypsum from the phosphate industry. The red mud was applied to the soil surface using conventional fertiliser spreading equipment. The other catchment was untreated.The red mud reduced phosphorus loss by 70% from 13.8 kg/ha on the untreated catchment, to 4.2 kg/ha on the treated catchment. Both catchments were treated with 20.4 kg/ha of phosphorus as superphosphate. The catchment treated with red mud also received a further 41.5 kg/ha of phosphorus from the phosphogypsum that was used to neutralise the red mud.Our results show that red mud reduces phosphorus leaching and is potentially a nutrient management option in sandy soils. Red mud has the potential to reduce the impact of agriculture on the estuarine environment and has implications for the continued expansion and intensification of agriculture in the Peel-Harvey catchment.     

我国铝土矿资源开发利用现状及其产业研究

矿产资源是人类社会进步与经济发展的重要物质基础,也是可持续发展不可缺乏的重要资源,它的不可再生性和发展的可持续性要求我们必须以最小的能源消耗来实现最大化的经济发展.作者以铝土矿为例,对其资源开发利用情况及产业发展现状进行了研究.     

铝矾土种类和用量对锆刚玉莫来石性能影响的灰色关联分析

采用工业氧化铝、锆英石和氧化铈合成锆刚玉莫来石,着重讨论了两种铝矾土部分取代工业氧化铝对锆刚玉莫来石材料性能的影响。通过灰色关联分析,得到结论为:铝矾土中的熔剂数量是影响材料抗折强度的主要因素,当铝矾土中杂质少SiO2含量较高时,试样的吸水率与铝矾土的加入量关联性最大。     

原料预均化及其在优质矾土生产中的应用

原料预均化的基本原理为“平铺直取”．标准偏差和均化效果是考核均化过程的两个重要指标。标准偏差越小表示物料成分越均匀。原料预均化方式有多种，料仓式原料预均化库综合了各种方式的优点，它具有投资少，密封性好，占地面积小，无粉尘，操作条件和均化效果好等特点。     

提高铝资源保障能力的战略思考

铝是国民经济建设、战略新兴产业发展不可或缺的重要基础原材料,不仅在建筑结构、交通运输、电力电子、日用包装等国民经济领域得到了广泛的应用,同时也是国防军工和高新技术产业的重要支撑材料,在发展循环经济、推进节能减排、保护生态环境等进程中也发挥着重要作用。近年来,中国铝土矿资源立足国内国外两个市场,由国内开采拓展到全球化资源配置。国内铝土矿资源保障能力不足导致进口依存度已经超过50%,未来还将进一步提升。随着铝工业的快速发展及资源的快速消耗,中国面临的铝资源保障问题日益突出。本文在详细分析中国铝土矿资源及开采情况、进口铝土矿资源的特点以及海外资源获取情况的基础上,结合中国铝工业发展的现状和未来发展趋势,提出了提高中国铝资源保障措施建议。