Characterization and Beneficiation of an Egyptian Nepheline Syenite Ore

Table 8

Magnetic separation followed by reverse anionic flotation.

Separation step	Product	Product Wt., %	Assay		Distribution
			Fe2O3, %	Al2O3, %	Fe2O3, %	Al2O3, %
Magnetic Sep. Step; (−0.125 mm feed size)	Magnetic	23.7	25.1	8.1	93.7	11.64
	Nonmag.	76.3	0.52	21.1	6.3	88.36
	Total	100	6.49	18.1	100	100
Flotation Step; (−0.074 mm feed size)	Froth	20.5 (15.6)*	1.8	10.2	69.9 (4.33)*	9.9 (8.2)*
	Bulk	79.5 (60.7)*	0.2	23.9	30.1 (1.86)*	90.2 (80.2)*
	Total	100 (76.3)*	0.53	21.1	100 (6.3)*	100 (88.4)*

∗Values in parentheses are calculated based on the head sample.