Application of SEM and EDS to Analyze the Occurrence of Platinum Group Elements and Characteristics of Platinum Group Minerals in the Pt-Pd Deposit from Huili, Sichuan Province, China
The Huili Pt-Pd deposit in Sichuan Province is an independent platinum element ore deposit. In some ore sections, the contents of Pt and Pd have reached industrial grade. It is necessary to understand the occurrence of platinum group elements and characteristics of platinum group minerals. However,...
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Science Press, PR China
2018-03-01
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| Series: | Yankuang ceshi |
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| Online Access: | http://www.ykcs.ac.cn/cn/article/doi/10.15898/j.cnki.11-2131/td.201605050114 |
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| author | ZHOU Jiao-hua XU Jin-sha NIU Rui ZHOU Jing LAI Jia-yi |
| author_facet | ZHOU Jiao-hua XU Jin-sha NIU Rui ZHOU Jing LAI Jia-yi |
| author_sort | ZHOU Jiao-hua |
| collection | DOAJ |
| description | The Huili Pt-Pd deposit in Sichuan Province is an independent platinum element ore deposit. In some ore sections, the contents of Pt and Pd have reached industrial grade. It is necessary to understand the occurrence of platinum group elements and characteristics of platinum group minerals. However, due to the low-grade platinum group elements (PGEs) in raw ore, chemical analysis is an indirect research method for the occurrence of platinum group elements, and the conclusion is thus not complete. Scanning Electron Microscope (SEM) and Energy Dispersive Spectrometer (EDS) were used to observe the inbuilt state, particle size, morphology characteristics, and the occurrence of the platinum group minerals. Results show that the PGEs in the deposit are mainly composed of pure Pt and Pd. The contents of Rh, Ir, Ru, and Os are very low, and the independent minerals composed of these four elements are undetected. Pt and Pd can exist in the form of simple substance elements and compounds with As, Te, Sb, Bi. There were 17 kinds of platinum group minerals, including Pt, As-Pt, As-Pd-Pt/As-Pt-Pd, and Pd-Pt-Cu/Pt-Pd-Cu. The pure Pt and the remaining Pt group minerals are found locally. The platinum group minerals have two kinds of inbuilt states, wrapped (52.39%) and intergranular (47.62%). Crystals of platinum group minerals are mainly xenomorphic granular, 1.36-32.7 μm, with a large range of particle sizes. The micropore structure, grapy structure and girdle zone can be found in some mineral crystals. The contact mode is mainly curve contact, followed by linear contact. These results provide a scientific basis for the platinum group minerals in beneficiation-metallurgy and resource evaluation. |
| first_indexed | 2024-04-10T16:41:46Z |
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| issn | 0254-5357 |
| language | English |
| last_indexed | 2024-04-10T16:41:46Z |
| publishDate | 2018-03-01 |
| publisher | Science Press, PR China |
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| series | Yankuang ceshi |
| spelling | doaj.art-049216138e4d469b8e3043b788bf1ba22023-02-08T06:31:13ZengScience Press, PR ChinaYankuang ceshi0254-53572018-03-0137213013810.15898/j.cnki.11-2131/td.201605050114ykcs-37-2-130Application of SEM and EDS to Analyze the Occurrence of Platinum Group Elements and Characteristics of Platinum Group Minerals in the Pt-Pd Deposit from Huili, Sichuan Province, ChinaZHOU Jiao-hua0XU Jin-sha1NIU Rui2ZHOU Jing3LAI Jia-yi4Rock and Mineral Analysis Center of Henan Province, Zhengzhou 450012, ChinaChengdu Geological Survey Center, China Geological Survey, Chengdu 610081, ChinaRock and Mineral Analysis Center of Henan Province, Zhengzhou 450012, ChinaRock and Mineral Analysis Center of Henan Province, Zhengzhou 450012, ChinaNorth China University of Water Resources and Electric Power, Zhengzhou 450012, ChinaThe Huili Pt-Pd deposit in Sichuan Province is an independent platinum element ore deposit. In some ore sections, the contents of Pt and Pd have reached industrial grade. It is necessary to understand the occurrence of platinum group elements and characteristics of platinum group minerals. However, due to the low-grade platinum group elements (PGEs) in raw ore, chemical analysis is an indirect research method for the occurrence of platinum group elements, and the conclusion is thus not complete. Scanning Electron Microscope (SEM) and Energy Dispersive Spectrometer (EDS) were used to observe the inbuilt state, particle size, morphology characteristics, and the occurrence of the platinum group minerals. Results show that the PGEs in the deposit are mainly composed of pure Pt and Pd. The contents of Rh, Ir, Ru, and Os are very low, and the independent minerals composed of these four elements are undetected. Pt and Pd can exist in the form of simple substance elements and compounds with As, Te, Sb, Bi. There were 17 kinds of platinum group minerals, including Pt, As-Pt, As-Pd-Pt/As-Pt-Pd, and Pd-Pt-Cu/Pt-Pd-Cu. The pure Pt and the remaining Pt group minerals are found locally. The platinum group minerals have two kinds of inbuilt states, wrapped (52.39%) and intergranular (47.62%). Crystals of platinum group minerals are mainly xenomorphic granular, 1.36-32.7 μm, with a large range of particle sizes. The micropore structure, grapy structure and girdle zone can be found in some mineral crystals. The contact mode is mainly curve contact, followed by linear contact. These results provide a scientific basis for the platinum group minerals in beneficiation-metallurgy and resource evaluation.http://www.ykcs.ac.cn/cn/article/doi/10.15898/j.cnki.11-2131/td.201605050114platinum group mineralsscanning electron microscopeenergy dispersive spectrometermorphology characteristicsoccurrence |
| spellingShingle | ZHOU Jiao-hua XU Jin-sha NIU Rui ZHOU Jing LAI Jia-yi Application of SEM and EDS to Analyze the Occurrence of Platinum Group Elements and Characteristics of Platinum Group Minerals in the Pt-Pd Deposit from Huili, Sichuan Province, China Yankuang ceshi platinum group minerals scanning electron microscope energy dispersive spectrometer morphology characteristics occurrence |
| title | Application of SEM and EDS to Analyze the Occurrence of Platinum Group Elements and Characteristics of Platinum Group Minerals in the Pt-Pd Deposit from Huili, Sichuan Province, China |
| title_full | Application of SEM and EDS to Analyze the Occurrence of Platinum Group Elements and Characteristics of Platinum Group Minerals in the Pt-Pd Deposit from Huili, Sichuan Province, China |
| title_fullStr | Application of SEM and EDS to Analyze the Occurrence of Platinum Group Elements and Characteristics of Platinum Group Minerals in the Pt-Pd Deposit from Huili, Sichuan Province, China |
| title_full_unstemmed | Application of SEM and EDS to Analyze the Occurrence of Platinum Group Elements and Characteristics of Platinum Group Minerals in the Pt-Pd Deposit from Huili, Sichuan Province, China |
| title_short | Application of SEM and EDS to Analyze the Occurrence of Platinum Group Elements and Characteristics of Platinum Group Minerals in the Pt-Pd Deposit from Huili, Sichuan Province, China |
| title_sort | application of sem and eds to analyze the occurrence of platinum group elements and characteristics of platinum group minerals in the pt pd deposit from huili sichuan province china |
| topic | platinum group minerals scanning electron microscope energy dispersive spectrometer morphology characteristics occurrence |
| url | http://www.ykcs.ac.cn/cn/article/doi/10.15898/j.cnki.11-2131/td.201605050114 |
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