TY - JOUR
T1 - Characterization by FTIR of oxidized pyrargyrite with sodium sulfide
AU - Espinoza, Yessica Paulina Gómez
AU - Pérez, M. Reyes
AU - Beas, Elia Guadalupe Palacios
AU - Juárez Tapia, J. C.
AU - Pérez-Labra, M.
AU - Reyes Domínguez, Iván A.
AU - Guerrero, Mizraim Uriel Flores
AU - Cruz, Víctor Esteban Reyes
N1 - Publisher Copyright:
© The Minerals, Metals & Materials Society 2020.
PY - 2020
Y1 - 2020
N2 - Pyrargyrite is a silver-rich sulfosal of formula Ag3 SbS3, considered a refractory species to leaching with cyanide solutions. In this research work, the characterization by infrared spectroscopy by Fourier transform and X-ray diffraction (XRD) of the oxidation of pyrargyrite with sodium sulfide is presented. The XRD results of the oxidation with sodium sulfide show that the pyrargyrite PDF 00-019-1135 is transformed into silver sulfide acanthite identified with PDF 96-901-1415, and the rosinckyite phase was also detected PDF 96-901-2782 as well as Ag2 O3 PDF 96-150-9693. The characterization by FTIR shows the absorption bands in 534, 760, 1019, and 1384 cm−1 characteristics of the presence of Sb–O bonds of Sb2 O3, and these oxides decisively influence the leaching of silver, due to the formation of a passivation layer on the mineral affecting the success of the leaching.
AB - Pyrargyrite is a silver-rich sulfosal of formula Ag3 SbS3, considered a refractory species to leaching with cyanide solutions. In this research work, the characterization by infrared spectroscopy by Fourier transform and X-ray diffraction (XRD) of the oxidation of pyrargyrite with sodium sulfide is presented. The XRD results of the oxidation with sodium sulfide show that the pyrargyrite PDF 00-019-1135 is transformed into silver sulfide acanthite identified with PDF 96-901-1415, and the rosinckyite phase was also detected PDF 96-901-2782 as well as Ag2 O3 PDF 96-150-9693. The characterization by FTIR shows the absorption bands in 534, 760, 1019, and 1384 cm−1 characteristics of the presence of Sb–O bonds of Sb2 O3, and these oxides decisively influence the leaching of silver, due to the formation of a passivation layer on the mineral affecting the success of the leaching.
KW - Acanthite
KW - FTIR
KW - Oxidation
KW - Pyrargyrite
UR - http://www.scopus.com/inward/record.url?scp=85079116222&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-36628-5_43
DO - 10.1007/978-3-030-36628-5_43
M3 - Artículo
AN - SCOPUS:85079116222
SN - 2367-1181
VL - PartF1
SP - 445
EP - 450
JO - Minerals, Metals and Materials Series
JF - Minerals, Metals and Materials Series
ER -