Characterization and Beneficiation of an Egyptian Nepheline Syenite Ore

Table 5

Effect of the pH value on the flotation behavior of Abu Khruq nepheline syenite ore. The feed size is −0.125 micron.

Solution pH	Product	Product Wt.,; %	Assay,; Fe2O3 %	Distribution,; Fe2O3 %
	Froth	12.5	28.5	55.7
3	Bulk	87.5	3.25	44.3
	Total	100	6.4	100
	Froth	15.0	26.1	62.2
4	Bulk	85.0	2.8	37.8
	Total	100	6.3	100
	Froth	22.0	16.7	60.6
5	Bulk	78.0	3.1	39.4
	Total	100	6.12	100
	Froth	31.2	13.1	62.9
6	Bulk	68.8	3.5	37.1
	Total	100	6.49	100

Collector dose: 0.6 kg/t; Solids in slurry: 20%.