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| Study on the Occurrence State of Sesquioxide in Phosphorite in Dianchi Area |
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Received:May 15, 2023
Revised:May 25, 2023
Accepted:June 02, 2023
Published Online:August 22, 2023
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| DOI： |
| KeyWord:sesquioxide; occurrence state; phosphorite;Dianchi |
| Author | Institution |
| PANG Jian-tao |
Yunnan Phosphating Group Co,Ltd |
| LI shu-jian. |
National Phosphorus Resources Development and Utilization Engineering Research Center;Yunnan Phosphating Group Co,Ltd |
| XIAO zhe |
National Phosphorus Resources Development and Utilization Engineering Research Center;Yunnan Phosphating Group Co,Ltd |
| YANG jian-guang |
National Phosphorus Resources Development and Utilization Engineering Research Center;Yunnan Phosphating Group Co,Ltd |
| YUAN ming-li |
National Phosphorus Resources Development and Utilization Engineering Research Center;Yunnan Phosphating Group Co,Ltd |
| DING wen-jun |
National Phosphorus Resources Development and Utilization Engineering Research Center;Yunnan Phosphating Group Co,Ltd |
| WU hao. |
National Phosphorus Resources Development and Utilization Engineering Research Center;School of Mining Engineering,China University of Mining and Technology |
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| Abstract: |
| In order to reduce the content of sesquioxide in phosphate ore concentrate and improve the quality of wet process phosphoric acid, XRF, polarizing microscope, SEM, MLA and other technical means were used to identify the mineral composition characteristics of phosphate ore, the occurrence characteristics of sesquioxide, grinding differentiation characteristics, and the dissociation characteristics of the host mineral monomer. The research results show that Fe2O3 mainly exists in limonite, mainly in the form of aggregation, star point dispersion, infection and vein distribution; Al2O3 is mainly hosted in muscovite and hydromica, in the form of fragments, and is a layered silicate mineral. After grinding, both Fe2O3 and Al2O3 exhibit differentiation characteristics towards fine-grained enrichment, and the monomer dissociation is good, providing a basic condition for mineral processing and removal. The surface of limonite and layered silicate minerals is hydrophilic, and it is difficult to remove phosphate rock by reverse flotation process. |
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