Chemical, Mineralogical, and Morphological Properties of Steel Slag

Table 1

Chemical composition of BOF, EAF, and Ladle Slags.

Oxide composition (%)
Reference	Slag type	CaO	SiO2	Al2O3	MgO	FeO	Fe2O3	Fe total	SO3	MnO	TiO2	P2O5	Free CaO
Das et al. [7]	BOF	47.9	12.2	1.2	0.8	26.3	—	—	0.3	0.3	—	3.3	—
Juckes [8]^a	BOF	36.4–45.8	10.7–15.2	1–3.4	4.1–7.8	—	—	19–24	0.1–0.2	2.7–4.3	—	1–1.5	2.5–12
Mahieux et al. [9]	BOF	47.5	11.8	2.0	6.3	—	22.6	—	—	1.9	0.5	2.7	—
Poh et al. [10]	BOF	52.2	10.8	1.3	5.04	17.2	10.1	—	—	2.5	0.6	1.3	10.2
Shen et al. [11]	BOF	39.3	7.8	0.98	8.56	—	38.06	—	0.0	4.2	0.9	—	—
Shi [12]	BOF	30–55	8–20	1–6	5–15	10–35	—	—	0.1–0.2	2–8	0.4–2	0.2–2	—
Tossavainen et al. [13]	BOF	45.0	11.1	1.9	9.6	10.7	10.9	—	—	3.1	—	—	—
Waligora et al. [14]	BOF	47.7	13.3	3.0	6.4	—	24.4			2.6	0.7	1.5	9.2
Xuequan et al. [15]^b	BOF	45–60	10–15	1–5	3–13	7–20	3–9	—	—	—	—	1–4	—
Barra et al. [16]	EAF	29.5	16.1	7.6	5.0	—	32.56	—	0.6	4.5	0.78	0.6	—
Luxán et al. [17]	EAF	24.4	15.4	12.2	2.9	34.4	—	—	—	5.6	0.56	1.2	—
Manso et al. [18]	EAF	23.9	15.3	7.4	5.1	—	—	42.5	0.1	4.5	—	—	0.5
Shi [12]	EAF	35–60	9–20	2–9	5–15	15–30	—	—	0.1–0.2	3–8	—	0.0–0.3	—
Tossavainen et al. [13]	EAF	38.8	14.1	6.7	3.9	5.6	20.3	—	—	5	—	—	—
Tsakiridis et al. [19]	EAF	35.7	17.5	6.3	6.5	—	26.4	—	—	2.5	0.8	—	—
Nicolae et al. [20]	Ladle	49.6	14.7	25.6	7.9	0.44	0.22	0.17	0.8	0.4	—	0.2	—
Shi [12]	Ladle	30–60	2–35	5–35	1–10	0–15	—	—	0.1–1	0–5.0	—	0.1–0.4	—
Qian et al. [21]	Ladle	49.5	19.59	12.3	7.4	—	0.9	—	—	1.4	—	0.4	2.5
Setién et al. [22]	Ladle	50.5–57.5	12.6–19.8	4.3–18.6	7.5–11.9	—	1.6–3.3	—		0.4–0.5	0.3–0.9	0–0.01	3.5–19
Tossavainen et al. [13]	Ladle	42.5	14.2	22.9	12.6	0.5	1.1	0.4	—	0.2	—	—	—

^aThe range of values are compiled based on the chemical composition data from 4 different sources in Great Britain provided by Juckes [8].
^bXuequan et al. [15] report chemical composition of steel slag from refining process (not specified as BOF).
— = data not available.