Multigrades Classification Model of Magnesite Ore Based on SAE and ELM

Table 2

Part of the physical and chemical test results of magnesite samples.

Number	Grade	Sample	Chemical composition%
			IgL	SiO2	CaO	MgO	Fe2O3	AL2O3
1	Top grade	Magnesium stone	51.79	0.17	0.32	47.41	0.25	0.06
2	Top grade	Magnesium stone	51.73	0.14	0.42	47.39	0.27	0.05
3	First grade	Magnesium stone	51.51	0.66	0.34	47.28	0.16	0.05
4	First grade	Magnesium stone	51.54	0.69	0.25	47.23	0.24	0.05
5	Second grade	Magnesium stone	51.02	1.01	0.81	46.93	0.18	0.05
6	Second grade	Magnesium stone	51.10	1.40	0.59	46.67	0.19	0.05
7	Third grade	Magnesium stone	48.83	4.16	0.83	44.65	2.07	0.08
8	Third grade	Magnesium stone	46.81	8.46	1.12	43.23	0.30	0.08
9	Fourth grade	Magnesium stone	50.03	1.49	3.52	44.75	0.16	0.05
10	Waste ore	Magnesium stone	49.55	3.57	0.48	46.05	0.30	0.05