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A method for identifying the degree of weathering of ion-adsorbed rare earth ores

An ion adsorption type and weathering degree technology, which is applied in instruments, measuring devices, scientific instruments, etc., can solve the problem of inability to accurately identify the weathering degree of ion adsorption type rare earth ores, and achieve the effect of improving the accuracy.

Active Publication Date: 2019-02-26
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention lies in the defect that the existing technology cannot accurately identify the degree of weathering of ion-adsorbed rare earth ores, and then provides a method that can accurately and quantitatively identify the degree of weathering of ion-adsorbed rare earth ores

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a method for identifying the degree of weathering of ion-adsorbed rare earth ores, including the following steps:

[0035](1) Collect representative raw ore samples from two sampling points A and B at different depths of the weathering crust profile of the same ion-adsorbed rare earth ore, and use the quartering method to obtain 1kg of representative ore samples, and dry them in a vacuum drying oven After cooling to room temperature, 20g was divided by quartering method, ground with agate mortar to less than 0.074mm, weighed 0.5g, fused with 1.5g NaOH at 750°C to become a liquid, and analyzed by electronically coupled plasma mass spectrometer (ICP-MS) detects the content of each rare earth element in the whole phase, and calculates the total amount of rare earth elements in the whole phase ω 总全 ;

[0036] Divide 300g from the above-mentioned representative ore sample after drying, put it into a 5×100cm sand core filter glass column, pad two med...

Embodiment 2

[0048] This embodiment provides a method for identifying the degree of weathering of ion-adsorbed rare earth ores, including the following steps:

[0049] (1) Collect representative raw ore from two sampling points A and C at different depths of the weathering crust profile of the same ion-adsorbed rare earth ore, and use the quartering method to obtain a 1kg representative ore sample, which is dried in a vacuum drying oven and cooled to At room temperature, 20g was divided by quartering method, ground with agate mortar to less than 0.074mm, weighed 0.5g, fused with 1.5g NaOH at 800°C to become a liquid, and analyzed by an electronically coupled plasma mass spectrometer (ICP- MS) detects the content of each rare earth element in the whole phase, and calculates the total amount of rare earth elements in the whole phase ω 总全 ;

[0050] Divide 300g from the above-mentioned representative ore sample after drying, put it into a 5×100cm sand core filter glass column, pad two medium...

Embodiment 3

[0062] This embodiment provides a method for identifying the degree of weathering of ion-adsorbed rare earth ores, including the following steps:

[0063] (1) Collect representative raw ore from three sampling points B, D, and E at different depths of the weathering crust profile of the same ion-adsorbed rare earth ore, and use the quartering method to obtain a 1kg representative ore sample, which is then dried in a vacuum oven Cool to room temperature, then divide 20g by quartering method, grind to less than 0.074mm with agate mortar, weigh 0.5g, and 1.5g NaOH at 600°C for alkali fusion to be liquid, and electron coupled plasma mass spectrometer ( ICP-MS) detects the content of each rare earth element in the whole phase, and calculates the total amount of rare earth elements in the whole phase ω 总全 ;

[0064] Divide 300g from the above-mentioned representative ore sample after drying, put it into a 5×100cm sand core filter glass column, pad two medium-speed filter papers on ...

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Abstract

The invention discloses a method for identifying the weathering degree of ion-absorbing type rare earth ores and initiatively provides a method for systematically and quantitatively identifying the ion-absorbing type rare earth ores of different weather degrees. The method has the advantages that at least two of the weather rate of the ion-absorbing type rare earth ores, the rare earth distribution at different particle sizes and Al<3+> concentration in rare earth leachate are used to quantitatively represent the weathering degree, mutual corroboration is performed, the weather degree of the ion-absorbing type rare earth ores can be identified accurately, the weathered ore bed, the semi-weathered ore bed and the unweathered ore bed can be distinguished, researches can be performed on the ore beds, and the leaching effect and law of the ion-absorbing type rare earth ores can be reflected accurately.

Description

technical field [0001] The invention belongs to the field of geochemistry of ion-adsorption rare earth ores, and in particular relates to a method for identifying different weathering degrees of ion-adsorption rare earth ores. Background technique [0002] Ion-adsorption rare earth ore, also known as weathering crust leaching rare earth ore, is a new type of exogenous rare earth ore, which is a clay mineral formed by years of weathering of rare earth-containing granite or volcanic rock. The dissociated rare earth ions are hydrated ions Or hydroxyl hydrate ions adsorbed on clay minerals. It is mainly distributed in Jiangxi, Fujian, Hunan, Guangdong, Guangxi and other provinces in the south of my country. It has the characteristics of rich reserves, low radioactivity, complete distribution of rare earths, and rich rare earth elements. It is a unique rare earth mineral resource in my country and is also rare in the world. Mineral species, its development and utilization play a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/64
CPCG01N27/64
Inventor 黄万抚邹志强李新冬李敏钟祥熙黄小林安占涛
Owner JIANGXI UNIV OF SCI & TECH