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논문 기본 정보

자료유형
학술저널
저자정보
Aiman Fatima (Pakistan Institute of Engineering and Applied Sciences) Syed Sheraz Daood (University of the Punjab) Shafia Inaam (University of the Punjab) Zaeem Bin Babar (University of the Punjab) Ashfaq Ahmed (Victoria University) Muhammad Zafar (University of the Punjab) Tahir Maqsood Qaisrani (Pakistan Institute of Engineering and Applied Sciences) Abdul Razzaq (COMSATS University Islamabad) Muhammad Usman Rashid (University of the Punjab) Sunhyung Kim (University of Seoul) Young-Kwon Park (University of Seoul)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제28권 제3호
발행연도
2023.6
수록면
77 - 84 (8page)

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초록· 키워드

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Fluorite (fluorspar), an important industrial mineral ore, is one of the major raw materials for the production of hydrofluoric acid. Naturally occurring fluorite ore contains gangue minerals, primarily silica (SiO₂) and calcite (CaCO₃). The beneficiation of fluorspar is needed to mitigate the severity of operational issues. Several studies on fluorspar beneficiation using the froth floatation technique have been executed, but the process is restricted by the use of minerals acids to remove calcite. In this study, a novel scheme for fluorspar beneficiation was investigated for the floatation of fluorite and depression of calcite and other gangue minerals simultaneously without the use of mineral acids. Moreover, mixtures of saturated and unsaturated fatty acids (oleic acid and palmitic acid) were used instead of mineral acids. Various parameters were investigated, such as the weight percent of the feed-slurry, feed pH, the effect of reagents on the process selectivity, and the effect of feed boiling and dilution on the up-gradation of fluorspar. The adopted methodology with tested reagents resulted a 67 wt. % reduction of CO₃<SUP>2-</SUP> and 75 wt. % reduction of SiO₂ in gangue material at a pH 10 for the feed slurry. Fluorspar purity increased from 65-75 wt. % to 95 wt. % after the boiling and dilution steps, respectively.

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ABSTRACT
1. Introduction
2. Materials and Method
3. Results and Discussion
4. Conclusion
References

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