Characterization and Beneficiation of an Egyptian Nepheline Syenite Ore

Table 3

Effect of the field intensity on the performance of the Carpco induced roll magnetic separator for cleaning the nepheline syenite ore.

Current intensity,; Ampere	Field intensity,; Gauss	Product	Product weight,; %	Assay,; Fe2O3 %	Distribution,; Fe2O3 %
	3,500	Magnetic	18.4	27.8	85.8
0.5		Nonmagnetic	81.6	1.6	14.2
		Total	100	6.42	100
	7,100	Magnetic	21.1	25.2	91.1
1.0		Nonmagnetic	78.9	1.4	8.9
		Total	100	6.43	100
	14,500	Magnetic	25.4	21.8	93.0
2.0		Nonmagnetic	74.6	1.2	7.0
		Total	100	6.43	100
	18,000	Magnetic	27.2	20.5	94.9
3.0		Nonmagnetic	73.2	1.1	5.1
		Total	100	6.35	100

Feed size fraction: −0.25 mm; Feed rate, kg/h: 24.