Effect of Synergistic Aging on Bauxite Residue Dust Reduction Performance via the Application of Colloids, an Orthogonal Design-Based Study

Polymers

Xuhan Ding¹  Dengfei Wang¹  Tao Wang¹  Zhenmin Luo¹  Guang Xu² 

[1] College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China;Department of Mining Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USA;

关键词: predictor;    dust control performance;    synergistic aging;    orthogonal design;    dynamic viscosity;    penetration resistance;   

DOI  :  10.3390/polym13121986

来源: DOAJ

【 摘 要 】

The application of polymer colloids is a promising approach for bauxite residue dust pollution control. However, due to the existence of synergistic aging, the efficiency of colloid dynamic viscosity to predict the dust control performance of bauxite residue is unclear. Previous studies were also rarely performed under synergistic aging conditions. Thus, this paper investigates the relationship between colloids’ viscosity and dust control performance under synergistic aging modes. Results illustrated that the binary colloid achieved better dust control performance than unitary colloid for their higher viscosity and penetration resistance. For both unitary and binary colloid, higher viscosity results in better crust strength. A logarithmic relationship was found for viscosity and dust erosion resistance under unitary aging. However, Only the dynamic viscosity of colloids in solid-liquid two-phase conditions, rather than dissolved in deionized water, can effectively predict the dust control performance under synergistic aging conditions.

【 授权许可】

Unknown