Author/Authors :
Aram, Reza Department of Mining Engineering - Tarbiat Modares University, Tehran, Iran , Abdollahy, Mahmoud Department of Mining Engineering - Tarbiat Modares University, Tehran, Iran , Pourghahramani, Parviz Mining Engineering Faculty - Sahand University of Technology, Tabriz, Iran , Mohseni, Mehdi Department of Mining Engineering - Tarbiat Modares University, Tehran, Iran , Khodadadi Darban, Ahmad Department of Mining Engineering - Tarbiat Modares University, Tehran, Iran
Abstract :
In this research work, the solubility of sphalerite concentrate due to mechanical
activation in planetary ball mill in both the wet and dry modes is investigated, and the
parameters of mean particle size, BET specific surface area, SEM, and XRD are
analyzed. The results of the particle size analysis and BET specific surface area show
that the size of particles for the non-activated sample decrease from 51 to 30 microns
but the BET specific surface area increase from 0.17 m2/g to 1.03 m2/g for the residue
and feed samples. In the wet and dry mode mechanical activation, the mean particle
size and BET specific surface area in the residue samples are reduced relative to the
leaching feed. The results of the micro-structure characterization also show that the
amorphization of the residue compared to the leaching feed increases in both modes
of mechanical activation. The crystallite size and lattice strain of the activated samples
in the residue increase and decrease compared to the leaching feed, respectively.
Keywords :
Sphalerite , Mechanical activation , Wet and dry modes , Leaching residue , Sample characterization
