大柴旦低品位硼矿的富集研究

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。

Study on Enrichment of Low Grade Boron Ore in Da Qaidam

:Da Qaidam Salt Lake is a typical sulfate salt subtype salt lakes with abundant Boron and Lithium 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 separate 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 provides a new utilization route for this kind of boron resource with low grade.