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[Fast Classification of Complex Sulphide Ore Based on Raman Spectroscopy].
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|September 10, 2018
Summary
A new method using Raman spectroscopy rapidly classifies complex sulphide ore. This technique analyzes mineral composition and properties, improving mineral processing efficiency without complex pretreatment.
Area of Science:
- Geochemistry
- Mineralogy
- Analytical Chemistry
Background:
- Hydrothermal sulphide ores exhibit complex mineral compositions due to varying mineralization periods, impacting mineral processing efficiency and recovery rates.
- Rapid and accurate classification of sulphide ores is crucial for optimizing mineral processing flowsheets and enhancing valuable mineral recovery.
Purpose of the Study:
- To develop a simple and rapid method for classifying complex sulphide ore using Raman spectroscopy.
- To investigate the relationship between Raman spectral properties and the physical characteristics of sulphide ores from different mineralization periods.
Main Methods:
- Utilized Laser Raman spectrometry to analyze the component and structure of minerals in sulphide ore samples.
- Investigated the influence of mineralization period on ore properties and Raman spectral characteristics.
- Developed a classification method based on fluorescence scattering intensity and the ratio of fluorescence to Raman intensity, after fluorescence quenching.
Main Results:
- Demonstrated significant variations in sulphide ore properties across different mineralization periods.
- Identified specific Raman spectral peaks (201.62, 242.54, 288.38, 309.77 cm-1) for complex sulphide ore identification after fluorescence quenching.
- Successfully classified raw ore into three categories based on fluorescence scattering characteristics.
- Validated the classification method's accuracy through industrial tests.
Conclusions:
- Raman spectroscopy provides a reliable means to classify complex sulphide ores based on their spectral properties.
- The proposed method offers a fast, pre-treatment-free approach for sulphide ore classification, significantly improving mineral processing efficiency.
- The findings highlight the strong correlation between Raman spectra and sulphide ore properties, paving the way for advanced ore characterization.
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