Mineralogy and Beneficiation of Lamujärvi Syenites
| العنوان: | Mineralogy and Beneficiation of Lamujärvi Syenites |
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| المؤلفون: | Xiaosheng Yang, Akseli Torppa, Neea Heino, Jukka Laukkanen |
| المصدر: | Natural Resources. :481-493 |
| بيانات النشر: | Scientific Research Publishing, Inc., 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Geochemistry, Mineralogy, Beneficiation, 010501 environmental sciences, engineering.material, 010502 geochemistry & geophysics, 01 natural sciences, Apatite, chemistry.chemical_compound, Allanite, chemistry, Monazite, visual_art, Titanite, engineering, visual_art.visual_art_medium, Geology, Biotite, 0105 earth and related environmental sciences, Magnetite, Zircon |
| الوصف: | The Lamujarvi syenites intrusions occur within Svecofennian (ca. 1.92 Ga) gneisses, ca. 70 km west of the Otanmaki alkaline area in central Finland. Previous studies have revealed zones in the syenites that display strong enrichment in Zr (1587 ppm), Nb (up to 685 ppm), Ta (up to 82 ppm), and REE (up to 5350 ppm). The major REE-bearing minerals in the Lamujarvi syenites are allanite and monazite. A sample of the Lamujarvi syenites with the REE content of 4700 ppm was studied on the mineralogy and beneficiation at GTK Mintec. The mineralogical analysis was conducted by MLA. The REE-bearing minerals allanite, parisite, zircon, and apatite were identified at significant concentrations and high contents of titanite (15.4%), biotite (30.9%) and magnetite (8.2%) were displayed in the sample. The beneficiation experiments by flotation, wet low and high gradient magnetic separations and gravity separation with a shaking table were carried out. A composite REE-Ti concentrate with REE 23,000 ppm, Zr 5000 ppm, Nb 3400 ppm and TiO2 25.5% at REE and Ti recoveries of 57% and 54% was obtained. In addition, biotite and magnetite concentrates were gained as by-products. |
| تدمد: | 2158-7086 2158-706X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::e431e908ba6c14f92508a4c17724dae1 https://doi.org/10.4236/nr.2016.78041 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........e431e908ba6c14f92508a4c17724dae1 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21587086 2158706X |
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