| 西藏扎布耶碳酸盐型盐湖卤水相化学研究 |
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| 引用本文： | 乜贞,卜令忠,郑绵平,张永生.西藏扎布耶碳酸盐型盐湖卤水相化学研究[J].地质学报,2010,84(4):587-592. |
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| 作者姓名： | 乜贞 卜令忠 郑绵平 张永生 |
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| 作者单位： | 中国地质科学院矿产资源研究所,北京,100037;中国地质科学院盐湖与热水资源研究发展中心,北京,100037;国土资源部盐湖资源与环境重点开放实验室,北京,100037 |
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| 基金项目： | 中国地质科学院矿产资源研究所基金，中国地质科学院基金 |
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| 摘 要： | 中国盐湖资源丰富,且水化学类型齐全。西藏扎布耶盐湖位于西藏高原腹地,该湖卤水水化学类型为碳酸盐型,已处于盐湖演化晚期,是一个固液共存的盐湖矿床,具有很好的工业开发价值。笔者分别在15℃、25℃下对该卤水进行了等温蒸发实验,研究了在此两个温度下卤水中各元素富集行为和盐类矿物析出规律。并通过讨论其与国内外碳酸盐型和硫酸盐型锂盐湖的卤水蒸发路径和矿物析出异同,指出扎布耶盐湖具有其独特的卤水蒸发析盐路径。在本实验中低温有利于卤水中锂的富集,而高温有利于硼的富集,碳酸锂和钾盐交叉析出,低温时钾的矿物主要为钾石盐,高温时主要为钾芒硝,高温有利于获得高品位的碳酸锂混盐。
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| 关 键 词： | 扎布耶盐湖 碳酸盐型 等温蒸发 盐类矿物 析出规律 |
| 收稿时间： | 2009/4/27 0:00:00 |
| 修稿时间： | 2009/12/30 0:00:00 |
Phase Chemistry Study of the Zabuye Salt Lake Carbonate-type Brine |
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| nie zhen,bu ling zhong,zheng mian ping and zhang yong sheng.Phase Chemistry Study of the Zabuye Salt Lake Carbonate-type Brine[J].Acta Geologica Sinica,2010,84(4):587-592. |
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| Authors: | nie zhen bu ling zhong zheng mian ping and zhang yong sheng |
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| Institution: | Institute of Mineral Resources, Chinese Academy of Geological Sciences,Institute of Mineral Resources, Chinese Academy of Geological Sciences,Institute of Mineral Resources, Chinese Academy of Geological Sciences,Institute of Mineral Resources, Chinese Academy of Geological Sciences |
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| Abstract: | Salt lakes are well developed in China with all hydro-chemical types. Carbonate-typed Zabuye Salt Lake is located in the interior of the Tibetan Plateau. The lake, at the latter period of salt lake evolution, is a coexistence deposit of solid and liquid which is of great economic value. Through isothermal evaporation of Zabuye Salt Lake brine at 15 and 25oC, we studied the concentration behavior of elements and the crystallization paths of salts. After comparing with carbonate-type and sulfate-type lithium salt lakes of their brine concentration rule and crystallization paths domestic and overseas, it can be concluded that the Zabuye Salt Lake brine has the unique crystallization path during evaporation. In the experiments, low evaporation temperature is appropriate for lithium concentration while high temperature for boron. Zabuyelite(Li2CO3) and potash were precipitated together during evaporation. It is easier to extract high-grade lithium carbonate at higher temperature. K is precipitated as sylvite at low temperature while as aphthitalite at high temperature. |
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| Keywords: | Zabuye Salt Lake Carbonate-type Isothermal Evaporation Salt Minerals Crystallization Path |
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