| 牦牛坪稀土矿床黑色土状风化物中富Eu、Y次生稀土的迁移富集及其经济价值 |
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| 引用本文： | 李小渝.牦牛坪稀土矿床黑色土状风化物中富Eu、Y次生稀土的迁移富集及其经济价值[J].四川地质学报,1994(4). |
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| 作者姓名： | 李小渝 |
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| 作者单位： | 四川省地矿局１０９队 |
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| 摘 要： | 耗牛坪稀土矿床之氧化带，广泛分布泥化率为１４．３３％─２４．６０％的．黑色土状风化物，其次生ＲＥＯ含量在２．０６％─６．６７％；Ｅｕ＿２Ｏ＿３和Ｙ＿２Ｏ＿３的配分为０．４３％─０．６３％和１．１２％─５．１８％，是矿石、工业矿物氟碳铈矿的数倍到数十倍。次生稀土是在弱碱性介质条件下发生分馏而富集中重稀土的，黑色土状风化物中的Ｍｎ－Ｆｅ非晶质体是富Ｅｕ、Ｙ等次生稀土富集体，是选矿矿泥的主要部分，如能综合开发利用将产生巨大的经济和社会效益。
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| 关 键 词： | 黑色土状风化物Mn－Fe非晶质体Eu、Y次生稀土，氟碳铈矿，迁移富集。 |
ENRICHMENT AND ECONOMIC VALUE OF SECONDARY REE DOMINATED BY Eu,Y IN BLACK EARTHY WASTE OF MAONIUPING ORE DEPOSIT OF REE |
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| Li Xiaoyu.ENRICHMENT AND ECONOMIC VALUE OF SECONDARY REE DOMINATED BY Eu,Y IN BLACK EARTHY WASTE OF MAONIUPING ORE DEPOSIT OF REE[J].Acta Geologica Sichuan,1994(4). |
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| Authors: | Li Xiaoyu |
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| Abstract: | A black earthy waste with an argillation ratio of 14. 33%-24. 60% occurs widely in oxidized zone of Maoniuping ore deposit of REE.The black earthy waste contains 2. 06%-6.67% (secondary) REO. The partition ratios of Eu2O3 and Y2O3 are 0.43%-0.63% and 1. 12%-5. 18%, respectively, which are several and tens times as much as those in the ores and in bastnacsite, respectively. Fractionation of secondary REE in a weak alkaline medium has resulted in enrichment of MREE and HREE. Amorphous Fe-Mn material in the black earthy waste, as main body of the ore sludye, is earrier of secondary REE dominated by Eu, Y. Comprehensive utilization of the ore sludge is of great economic and social significance. |
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| Keywords: | black earthy waste amorphous Fe-Mn matrial secondary REE bastnacsite migration and enrichment |
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