Sorption of Uranium Ions from Their Aqueous Solution by Resins Containing Nanomagnetite Particles

Table 5

Chemical analysis of granitic samples.

Sample	Major constituent	%	Trace constituent	Concentration, ppm
1	SiO2	73.5	U	4000
	AL2O3	12.8	Th	300
	Fe2O3	2.5	Rare earth	270
	CaO	1.3	Rb	225
	Na2O	2.6	Zr	197
	MgO	0.5	Y	126
	K2O	2.4
2	SiO2	73.5	U	3200
	AL2O3	13.8	Th	190
	Fe2O3	3.6	Rare earth	270
	CaO	1.4	Rb	—
	Na2O	0.6	Zr	400
	MgO	0.5	Y	197
	K2O	2.4
3	SiO2	72.5	U	2700
	AL2O3	12.8	Th	260
	Fe2O3	2.5	Rare earth	250
	CaO	1.3	Rb	437
	Na2O	3.9	Zr	284
	MgO	0.5	Y	135
	K2O	3.4