A method for generating uniform size-segregated pyrite particle fractions

Table 3 Surface area and dissolution rates for pyrite samples after preparing material using the dry and wet sieving technique.

	Dry Sieving Preparation 63 – 75 μm		Wet Sieving Preparation 45 – 75 μm
Sample ID	Initial Dissolution Rate μg of Fe/min	Surface Area m²/g	Initial Dissolution Rate μg of Fe/min	Surface Area m²/g
HY-001	34.1	1.9	3.8	0.22
HY-002	na	na	na	na
SED-001	70.4	0.90	21.1	2.8
SED-002	82.3	0.20	23.4	5.4
SED-003	81.8	3.1	0.02	0.42

Initial dissolution rates were from the dissolved iron concentration at 60 minutes. Based on measurements of black carbon and alumina standard materials, the estimated maximum error for surface area measurements is ± 0.6 m²/g.

ISSN: 1467-4866