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A method for predicting the stratum of weathered crust ion-adsorption type rare earth deposits based on paleowater levels

An ion adsorption type, weathering shell technology, applied in the field of rare earth ore exploration, can solve the problems of leaching liquid loss and unreasonable utilization, and achieve the effect of avoiding leakage and efficient and reasonable utilization.

Active Publication Date: 2021-06-04
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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Problems solved by technology

However, the buried depth of the ore body is generally 1-10m, so some ore bodies are often ignored, or are lost with the leachate due to surrounding mining, and have not been rationally utilized

Method used

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  • A method for predicting the stratum of weathered crust ion-adsorption type rare earth deposits based on paleowater levels
  • A method for predicting the stratum of weathered crust ion-adsorption type rare earth deposits based on paleowater levels
  • A method for predicting the stratum of weathered crust ion-adsorption type rare earth deposits based on paleowater levels

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Sample from the rock weathering shell of a neutral adsorption-type rare earth deposit in Meizhou, Guangdong Province, in this example, calculated the content of Ce and rare earth elements in different depth samples of the wind and seaside (Table 1), the relative content of the hematite-needle iron ore ( Table 2), the ancient dive level indicated by Δce, hematite-needle iron ore, so that rare earth elements are obviously enriched under ancient dive.

[0031] Table 1

[0032] Depth (M) 0.1 0.7 1.7 3.5 4.5 6.4 8.8 10.5 12.7 ΔCE 2.6 3.7 2.5 4.3 1.0 0.7 0.9 0.6 0.2 Ree 211 246 261 195 625 813 220 284 169 Depth (M) 15.0 18.8 20.6 21.6 25.3 27.4 30.0 33.5 35.1 ΔCE 0.5 0.2 0.9 0.6 0.5 1.1 0.9 0.7 0.8 Ree 504 168 113 128 127 209 248 295 299 Depth (M) 39.4 41.4 43.4 45.0 48.0 49.5 58.6 69.0 78.3 ΔCE 0.8 0.9 0.9 0.9 0.8 0.9 0.8 0.8 0.9 Ree 288.4 260.0 286.4 297.0 117.2...

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Abstract

The invention discloses a method for predicting the horizon of a weathering crust ion adsorption type rare earth ore deposit based on the ancient phreatic level. The samples of the weathering crust are collected for trace element analysis and visible light-near-infrared reflection spectrum analysis, and the Ce content in the whole rock of the weathering crust is calculated. The change is the δCe and the absorption peak position of the visible light-near infrared reflectance spectrum in the 480-530 nm band (P500), which can characterize the relative content of hematite-goethite. The boundary line is the paleophrenic level of the weathering crust, and the rare earth element rich ore horizons in the weathering crust are distributed below the paleophrenic level. To further improve the accuracy of delineating the ore body and evaluating the reserves of the weathered ion adsorption rare earth deposit, and to meet the purpose of the efficient utilization of rare earth resources by the prospecting and exploration of the weathering crust ion adsorption rare earth deposit.

Description

Technical field [0001] The present invention belongs to the field of rare earth mine exploration, and in particular, the present invention relates to a method of predicting a radiochemical housing ion adsorption type rare earth deposit by ancient submersible position. Background technique [0002] The rare earth elements are widely used in many applications such as defense military, aerospace, special materials, metallurgy, energy and agriculture, known as "industrial vitamins". In recent years, the rapid development of aerospace, new energy and new materials has made rare strategic resources. Since Western developed countries have increased year by year, rare earth (especially heavy rare earth) in the international market continues to rise. Driven by market demand and economic benefits, all countries in the world attach great importance to exploration and development and utilization of rare earth deposits in recent years. The weathering ion adsorption-type rare earth deposit in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/3563G01N21/359
CPCG01N21/3563G01N21/359
Inventor 谭伟黄健秦效荣何宏平梁晓亮马灵涯
Owner GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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