COMPOSITION AND STRUCTURAL CHARACTERISTICS OF LAO CAI PHOSPHORUS SLAGS TO PRODUCT UNBURT MATERIAL

  • Phạm Thị Mai Hương
  • Vũ Minh Tân
  • Phan Thị Quyên
  • Vũ Thị Huyền
Keywords: Lao Cai phosphorus slag, unburnt material, composition

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.

điểm /   đánh giá
Published
2020-11-16
Section
RESEARCH AND DEVELOPMENT