About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
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Symposium
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Characterization of Minerals, Metals and Materials 2022
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Presentation Title |
Study on Efficient Burdening for Preparation of Fused Calcium Magnesium Phosphate Fertilizer from Low-grade Phosphate Ores |
Author(s) |
Tingting Wang, Luyi Li, Cuihong Hou, Haobin Wang, Shouyu Gu, Jie Wang |
On-Site Speaker (Planned) |
Tingting Wang |
Abstract Scope |
Acidification and trace elements lack of soil deteriorate the healthy planting of crops in China. One effective approach to relieve the soil acidification and infertility is to use alkaline fused calcium magnesium phosphate fertilizer (FMP). As a carrier of many micronutrients, low-grade phosphate ores was used as the raw materials to prepare the alkaline FMP in this work. An efficient burdening for preparation of FMP based on the glass structure factors (Ob/Yb) was briefly introduced, and then the fusion characteristic of the low-grade phosphate ores with various Ob/Yb values was characterized. Melting experiments show that the increase of melting temperature and time can dramatically enhance the effective conversion of nutrients elements in phosphate ores. After melting at 1450℃ for 10 min with Ob/Yb of 3.06, 94.87% P2O5, 91.68% CaO, 93.69% MgO and 92.46% SiO2 are activated in the alkaline FMP, which can be readily absorbed by the crop root system. |
Proceedings Inclusion? |
Planned: |