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Quantitative analysis method for low-grade minerals containing light elements

A quantitative analysis, low-grade technology, applied in the analysis of materials, using wave/particle radiation for material analysis, measuring devices, etc., can solve problems such as inaccurate test results, impact of ore development and utilization, and lack of quantitative analysis of minerals

Inactive Publication Date: 2021-07-06
广东省资源综合利用研究所
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Problems solved by technology

However, with the deepening of scientific research and the improvement of rigor, when such low-grade minerals containing light elements gradually become the main purpose minerals of research, such inaccurate test results will have a relatively large impact on the development and utilization of this ore
[0007] However, there is still a lack of a method that can identify low-grade minerals containing light elements in geological samples, let alone a method that can quantitatively analyze these minerals

Method used

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  • Quantitative analysis method for low-grade minerals containing light elements
  • Quantitative analysis method for low-grade minerals containing light elements
  • Quantitative analysis method for low-grade minerals containing light elements

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[0036] The following will further explain and describe the present invention through specific implementation modes. It should be understood that the purpose of the following implementation modes is to make the technical solution of the present invention clearer and easier to understand, and not to limit the protection scope of the claims.

[0037] This example provides a joint quantitative determination method for low-grade lithium beryllium minerals in a lithium beryllium tantalum niobium polymetallic ore containing Li 2 O 1.59%, BeO 0.042%. The specific process is as follows:

[0038] In this embodiment, "-" means the following, for example -0.2mm means the particle size is not more than 0.2mm; "+" means the above, for example -0.2+0.1mm means the particle size is not more than 0.2mm and not less than 0.1mm.

[0039] (1) Crush the ore to -0.2mm, take about 200g of representative solid ore samples, and obtain four grades of products through screening and water analysis: -0.2...

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Abstract

A quantitative analysis method for the low-grade minerals containing the light elements comprises the following steps: S1, preparation of a test sample: crushing a sample to be tested into a polished section, and grinding and polishing the polished section to obtain the test sample; S2, target mineral determination: carrying out mineral automatic quantitative analysis on the test sample by adopting an automatic process mineralogy analysis system, determining a target mineral and marking the position of a monomer particle of the target mineral; S3, target mineral extraction: taking out target mineral monomer particles at marked positions; and S4, target mineral analysis: carrying out X-ray powder crystal diffraction measurement and searching a matched phase. According to the method, the technical barrier of combined application of an automatic process mineralogy analysis system and X-ray powder crystal diffraction is broken through, broken minerals in a test sample are marked and taken out, and by utilizing positioning of the scanning electron microscope and the comprehensive data matching capability of the X-ray powder crystal diffraction, the content of the broken minerals in the test sample is determined. The method can accurately identify light element-containing low-grade minerals which are difficult to detect at present and perform quantitative detection and analysis, and overcomes mineral detection shortages in recent 30 years.

Description

technical field [0001] The invention relates to the technical field of geological mineral detection, in particular to a quantitative analysis method for low-grade minerals containing light elements. Background technique [0002] Analytical methods for minerals in geological samples such as rocks, ores, and sediments include polarizing microscopy, automatic process mineralogy analysis systems, and X-ray diffraction methods. [0003] Polarized light microscopy can identify some minerals containing light elements with obvious differences in optical characteristics, but this method is not only difficult to identify minerals containing light elements with insignificant differences in optical characteristics, but also cannot accurately quantitatively analyze low-grade minerals, and it is time-consuming and laborious. [0004] The MLA method is commonly used in the automatic process mineralogy analysis system method, which is a method of automatic quantitative analysis of minerals ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/207G01N23/20008
CPCG01N23/207G01N23/20008
Inventor 李波张莉莉蒋英洪秋阳李美荣梁冬云
Owner 广东省资源综合利用研究所
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