Chủ nhật, 26/07/2026 | 18:48
ABSTRACT The phosphorous is a solid waste of producing yellow phosphorus in electrical furnace. In reality, there are 11 tons of phosphorus slag when 1 ton was produced in industry. In this paper, the composition and structural characteristic of Lao Cai phosphorus slag was studied by X-Ray diffraction, X-Ray fluorescence and UV-VIS spectrophotometer. The result showed that the phosphorus contains 46.62% of CaO, 38.85% of SiO2, 3.31% of Al2O3, 1.4% of P2O5 and other oxide metals as Fe2O3, MnO, K2O…The phosphorus slag was tested by solidification with clay minerals and alkali, the compressive strength of solid material mixture is high, reach to 14 - 17Mpa, and used to produce unburnt material in the construction industry. Keywords: Lao Cai phosphorus slag, unburnt material, composition. |
Bộ Công Thương xác định thực hiện Nghị quyết số 57-NQ/TW là nhiệm vụ chính trị quan trọng, thường xuyên và việc triển khai phải đồng bộ, quyết liệt.
24/07/2026