大柴旦低品位硼矿的富集研究  

Study on Enrichment of Low Grade Boron Ore in Da Qaidam

作　　者：李武[1] 梁建[1] 杨波[1] 彭姣玉[1] 孟庆芬[1] 黄培锦[1] 孔凡志[1] 董亚萍[1] 

机构地区：[1]中国科学院青海盐湖研究所,青海西宁810008

出　　处：《盐湖研究》2015年第3期42-51,共10页Journal of Salt Lake Research

基　　金：中国科学院"科技支青"项目"大柴旦湖底低品位硼矿制取硼产品工艺扩大试验"资助

摘　　要：在对大柴旦盐湖湖底低品位硼矿的组成、伴生矿物种类、含量等因素进行分析的基础上,依据各矿物物理性质的差异,通过正交试验法,确定采用旋流方法分离低品位硼矿中的石膏和碳酸盐,分别得到以碳酸盐为主要杂质的低品位硼矿和以硫酸盐为主要杂质的低品位硼矿,然后进行分别加工,有效降低大柴旦盐湖低品位硼矿加工过程分解剂的消耗,为大柴旦盐湖低品位硼矿的加工利用提供了一条新的途径。Da Qaidam Salt Lake is a typical sulfate salt subtype salt lakes with abundant Boron and Lithi- um in Qinghai-Tibet Plateau. Nine kinds of borate minerals have been discovered in Da Qaidam Salt Lakes, coexisted with several carbonates, sulfate salts, halite and ooze. The feature of the boron deposit makes the grade of this kind of borate minerals low and difficult to utilize. Based on the analysis to the component of boron ore and associated ores in this area, Hydraulic Vortex Flow Method was used to sepa- rate the gypsum and carbonate according to the difference of physical properties, and the boron ore of higher grade with impurities of carbonate or sulfate salts were obtained respectively for further processing. This method can reduce the consumption of decomposition agent during the further processing, and pro- vides a new utilization route for this kind of boron resource with low grade.

关 键 词：大柴旦 低品位固体硼矿 旋流分离 碳酸盐 硫酸盐 

分 类 号：TD97[矿业工程—选矿]