西藏扎布耶盐湖夏季卤水盐田晒制研究

本文以西藏扎布耶盐湖卤水为研究对象，在夏季的大面积盐田中，记录了天然日晒蒸发过程中的卤水组分演化过程，分析了Li、B、K等组分的集散行为，为该湖卤水的综合利用提供了工业化参考数据。通过实验发现，扎布耶盐湖夏季卤水Li^ 富集较低，Li^ 浓度最高达到1.8g/L。Li^ 的析出较分散，在实验末期，固相Li2CO3析出达到高峰期，但Li2CO3的含量不超过4%。在实验后期，卤水中CO3^2-离子的浓度和卤水温度迅速升高，这是导致卤水中Li^ 快速析出的主要因素，蒸发后期，卤水中K^ 和B2O3迅速富集，母卤适于提取硼砂和钾石盐或硼钾盐。

A Study of the Brine Solarizing Behavior in Solar Ponds of Zabuye Salt Lake

The subject of this paper is the brine in Zabuye salt lake of Tibet Plateau. In summer, the composition of the brine in large solar ponds was recorded. With the research on the enrichment and depletion behavior of the brine composition, the record provides the industrial basic data for the comprehensive utilization of the brine. The experimental results show that the enrichment of Li + in brine is rather low, the concentration of Li + can only go up to 1.8 g/L, and the precipitation of Li + is very dispersive. During the last period of the experiment, there was a climax for the deposition of Li 2CO 3, but its content in solid phase is not higher than 4%. During the last period,CO 3 content in brine and the temperature of brine rose very quickly. Those seem to be dominating effects for the rapid precipitation of Li + from brine. During the last period,K + and B 2O 3 were rapidly enriched in brine, which was beneficial to the separation of sylvite from borax.