TY - JOUR
T1 - Enrichment of Tantalum and Niobium Contents in Bangka Tin Slag by NaOH and H3PO4Leaching
AU - Akli, Hendri F.
AU - Permana, Sulaksana
AU - Maksum, Ahmad
AU - Soedarsono, Johny W.
AU - Widana, Kurnia S.
AU - Anggraini, Mutia
AU - Munir, Badrul
N1 - Publisher Copyright:
© 2019 Published under licence by IOP Publishing Ltd.
PY - 2019/9/5
Y1 - 2019/9/5
N2 - This study explores how 0.23% tantalum and 0.47% niobium in tin slag from the Bangka-Belitung archipelago, Indonesia, are upgraded. To enrich the contents of both metals, this research involves 8M NaOH leaching followed by 0.5M, 1M, and 1.5M phosphoric acid. First, tin slag was roasted at 900°C for 2 hours. Then, the sample was NaOH-leached while H3PO4 was exploited to leach its residues. Next, each of the residues from the leaching processes was characterized by XRF while the filtrates characterization used AAS and ICP-OES. On the one hand, NaOH leaching has proven to decrease the contents of iron, calcium, titanium, and aluminum. On the other hand, 0.5 M H3PO4 leaching optimizes tantalum contents up to 0.85% while 1.0 M H3PO4 leaching maximizes niobium contents up to 1.45%.
AB - This study explores how 0.23% tantalum and 0.47% niobium in tin slag from the Bangka-Belitung archipelago, Indonesia, are upgraded. To enrich the contents of both metals, this research involves 8M NaOH leaching followed by 0.5M, 1M, and 1.5M phosphoric acid. First, tin slag was roasted at 900°C for 2 hours. Then, the sample was NaOH-leached while H3PO4 was exploited to leach its residues. Next, each of the residues from the leaching processes was characterized by XRF while the filtrates characterization used AAS and ICP-OES. On the one hand, NaOH leaching has proven to decrease the contents of iron, calcium, titanium, and aluminum. On the other hand, 0.5 M H3PO4 leaching optimizes tantalum contents up to 0.85% while 1.0 M H3PO4 leaching maximizes niobium contents up to 1.45%.
KW - Bangka tin slag
KW - Leaching
KW - NaOH
KW - Niobium
KW - phosphoric acid
KW - Tantalum
UR - http://www.scopus.com/inward/record.url?scp=85072643800&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/547/1/012050
DO - 10.1088/1757-899X/547/1/012050
M3 - Conference article
AN - SCOPUS:85072643800
SN - 1757-8981
VL - 547
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012050
T2 - 1st International Conference on Design and Application of Engineering Materials 2018, IC-DAEM 2018 in conjunction with 11th Seminar Nasional Metalurgi dan Material, SENAMM 2018
Y2 - 6 September 2018 through 7 September 2018
ER -