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Ionic rare-earth ore infiltration system reinforced leaching method

An ionic rare earth ore, enhanced leaching technology, applied in the direction of improving process efficiency, can solve problems such as high production cost, poor seepage effect, insufficient reaction, etc., and achieve the effect of improving ore body expansion and inhibiting expansion.

Active Publication Date: 2017-05-10
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the ubiquitous problems of poor percolation effect, insufficient reaction, low leaching efficiency, large amount of leaching agent, high production cost, and easy environmental pollution in ionic rare earth ore leaching systems, the purpose of the present invention is to provide a stable and efficient , good percolation effect, sufficient exchange reaction, high leaching index, low production cost, environmental protection and pollution-free new enhanced leaching method

Method used

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  • Ionic rare-earth ore infiltration system reinforced leaching method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0034] Mix 200g of potassium alkylsulfonate succinamate, 100g of sodium methylaminoethylsulfonate, 120g of sodium stearylsulfamate, and 50g of potassium phosphate, and stir with a beaker as a container and a magnetic stirrer for 30~ 40min to get the enhancer ZXT-16.

Embodiment 2

[0036] Mix 180g of potassium alkylsulfonate succinamate, 100g of sodium methylaminoethylsulfonate, 140g of sodium stearylsulfamate, and 50g of potassium phosphate, and stir with a beaker as a container and a magnetic stirrer at normal temperature and pressure for 30~ 40min to get the enhancer ZXT-16.

Embodiment 3

[0038] Mix 230g of potassium alkylsulfonate succinamate, 100g of sodium methylaminoethylsulfonate, 130g of sodium stearylsulfamate, and 50g of potassium phosphate, and stir with a beaker as a container and a magnetic stirrer for 30~ 40min to get the enhancer ZXT-16.

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Abstract

The invention provides an ionic rare-earth ore infiltration system reinforced leaching method. The infiltration process comprises the step of adding a leaching agent to perform leaching; and the method is characterized in that ZXT-16 is also added as a reinforcer in the leaching process. The separated ionic rare earths have the advantages of favorable leaching indexes, high leaching recovery rate and low production cost; and the novel reinforced leaching method has the advantages of high stability, high efficiency, favorable infiltration flow effect, sufficient exchange reaction, high leaching indexes, environment friendliness and no pollution, and is suitable for popularization and application.

Description

technical field [0001] The invention belongs to the field of ore dressing, and in particular relates to a method for intensified leaching of an ionic rare earth ore leaching system. Background technique [0002] Ionic rare earth ore is a unique rare earth mineral resource in my country. Because it is rich in medium and heavy rare earth elements, complete distribution, and low radioactive ratio, it has become an important strategic resource that is restricted in mining in our country. The rare earth elements in the ore are mostly adsorbed on the surface of clay minerals such as kaolinite and illite in the form of hydrated or hydroxyl hydrated cations, and their chemical properties are stable. Using cations with more active chemical properties can undergo ion exchange reactions with rare earth ions, and then extract rare earth elements, but the extraction processes such as bucket leaching, pool leaching, and heap leaching, which are known as "moving mountains", not only destro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/04C22B59/00
CPCC22B3/04C22B59/00Y02P10/20
Inventor 周贺鹏罗仙平胡洁张永兵钟志刚
Owner JIANGXI UNIV OF SCI & TECH
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