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地球学报  2009 

碳酸盐型盐湖卤水的模拟太阳池结晶试验

DOI: 10.3975/cagsb.2009.02.14

Keywords: 盐湖卤水,模拟太阳池结晶,锂、镁,析出率

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Abstract:

在碳酸盐型盐湖提锂工艺中,太阳池是一个重要组成部分,目的是储存太阳能能量以结晶析出碳酸锂。文章利用加热方法首次在实验室条件下进行模拟太阳池结晶试验,试验的蒸发量随着温度的升高而加大,但蒸发量的不同对析盐结晶影响不大。在不同时间段模拟试验中,24h时间段的Mg2+析盐浓度较Li+大,且随着时间的延长逐渐降低,而Li+则相反;Mg2+析出速率随着时间的增加而逐渐降低,而Li+析出速率基本保持一致。在不同温度模拟试验中,卤水主要组分总析出率与温度的升高呈正相关,卤水中CO32?和Li+的浓度降低速度大于其他组分,CO32?和Li+的析出率远大于其他组分,析出主要矿物鉴定结果均为扎布耶石

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