Transfer Mechanism of Lanthanum from Rare Earth Containing Iron Ore to Pig Iron during the Blast Furnace Process

Table 7

Characteristics of peaks in Figure 4.

Peak position (cm^−1)	Cause of the peak	Reference
3432	O-H stretching vibration from hydroxyl and water molecule	[31, 32]
1733	C=O stretching vibration from carbonyl and carboxylic groups	[33]
1630	C=C stretching mode from unoxidized graphitic domains	[34]
1400	Tertiary C-OH groups deformation vibration	[35]
1122	C-O-C stretching vibration	[36]
617	Stretching vibration CO2 molecule on surface of oxide graphite	[37]