西藏自治区扎仓茶卡盐湖是我国重要的超大型固体硼镁矿产地,经多年开采,高品位硼矿资源(B 2 O 3≥28%)已采掘殆尽,但矿区内仍堆有大量低品位矿石,这不仅是对环境的威胁,也是对资源的浪费。在采集样品的基础上,开展了基于X射线衍射与扫...西藏自治区扎仓茶卡盐湖是我国重要的超大型固体硼镁矿产地,经多年开采,高品位硼矿资源(B 2 O 3≥28%)已采掘殆尽,但矿区内仍堆有大量低品位矿石,这不仅是对环境的威胁,也是对资源的浪费。在采集样品的基础上,开展了基于X射线衍射与扫描电镜的矿物组成的鉴定和化学组分分析,为低品位矿石的综合利用提供理论依据。研究结果表明,扎仓茶卡盐湖低品位硼矿的矿物种类有库水硼镁石、柱硼镁石、石英、钠长石、微斜长石、方解石、白云母、文石、水菱镁矿、石膏和锰热臭石共11种,其中仅有库水硼镁石和柱硼镁石两种硼矿物,平均含量分别为21.14%与8.99%,且硼矿样品中B 2 O 3平均含量高达13.50%,有巨大的经济利用价值。考虑到扎仓茶卡有着丰富的卤水资源,且低品位硼矿主要为库水硼镁石,可利用卤水及矿物的密度差来进行重选,该库水硼镁石为易选型。这种方法不仅能实现矿区内低品位矿的回收利用,而且生产成本低廉、绿色环保,将进一步促进区域经济发展。展开更多
In this study, the benefication of low-grade Espey -10 mm. colemanite stocks of more than 30,000 tons, which have been waiting for longer years, can not be evaluated in any way in Emet Boron Works in order to get sala...In this study, the benefication of low-grade Espey -10 mm. colemanite stocks of more than 30,000 tons, which have been waiting for longer years, can not be evaluated in any way in Emet Boron Works in order to get salable product. Chemical, physical, mineralogical and thermal characterization of low-grade colemanite stock, in the sizes of 10 mm, are located in Espey region primarily conducted. Grades of 10 mm size of Espey used in this study is 28.87% B203. In the microwave experiments, a concentrate of 50.82% B203 was obtained with the efficiency of 88.13%. Evaluating colemanite concentrate by microwave technology may have great importance in solving environmental problem.展开更多
文摘西藏自治区扎仓茶卡盐湖是我国重要的超大型固体硼镁矿产地,经多年开采,高品位硼矿资源(B 2 O 3≥28%)已采掘殆尽,但矿区内仍堆有大量低品位矿石,这不仅是对环境的威胁,也是对资源的浪费。在采集样品的基础上,开展了基于X射线衍射与扫描电镜的矿物组成的鉴定和化学组分分析,为低品位矿石的综合利用提供理论依据。研究结果表明,扎仓茶卡盐湖低品位硼矿的矿物种类有库水硼镁石、柱硼镁石、石英、钠长石、微斜长石、方解石、白云母、文石、水菱镁矿、石膏和锰热臭石共11种,其中仅有库水硼镁石和柱硼镁石两种硼矿物,平均含量分别为21.14%与8.99%,且硼矿样品中B 2 O 3平均含量高达13.50%,有巨大的经济利用价值。考虑到扎仓茶卡有着丰富的卤水资源,且低品位硼矿主要为库水硼镁石,可利用卤水及矿物的密度差来进行重选,该库水硼镁石为易选型。这种方法不仅能实现矿区内低品位矿的回收利用,而且生产成本低廉、绿色环保,将进一步促进区域经济发展。
文摘In this study, the benefication of low-grade Espey -10 mm. colemanite stocks of more than 30,000 tons, which have been waiting for longer years, can not be evaluated in any way in Emet Boron Works in order to get salable product. Chemical, physical, mineralogical and thermal characterization of low-grade colemanite stock, in the sizes of 10 mm, are located in Espey region primarily conducted. Grades of 10 mm size of Espey used in this study is 28.87% B203. In the microwave experiments, a concentrate of 50.82% B203 was obtained with the efficiency of 88.13%. Evaluating colemanite concentrate by microwave technology may have great importance in solving environmental problem.
