Upgradation of Iron Ore Fines and Slime by Selective Flocculation Using Surface-Active Agents, Settling Study, and Characterization of the Beneficiation Waste for Value Addition
Table 7
Important bands of clay minerals along with their possible assignments.
Band (cm−1)
Assignments
3693
Internal surface-free OH stretch (Al2O-H).
3615
Internal O−H stretch (Al2O-H)
3189
Hydrogen-bonded O-H stretch
1635
H-O-H str.
1101, 1029
Si-O-Si, Si-O str.
1029 and 1005
Asymmetric and symmetric stretching modes of Si-O-Si