Cyanidation study of slag rich in silver

Miguel Pérez-Labra; J. Antonio Romero-Serrano; E. O. Ávila-Davila; M. Reyes-Pérez; F. R. Barrientos-Hernández; I. A. Lira-Hernández

doi:10.1007/978-3-319-48191-3_88

Cyanidation study of slag rich in silver

Miguel Pérez-Labra, J. Antonio Romero-Serrano, E. O. Ávila-Davila, M. Reyes-Pérez, F. R. Barrientos-Hernández, I. A. Lira-Hernández

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

Slag from smelting reduction processes were characterized by chemical analysis, XRD, SEM-EDS and XRF. The results revealed Ag concentrations of 362 g/t of slag, the slag mineralogical characterization by XRD and SEM-EDS showed mineralogical species oxidized complex containing Pb, Zn, Ca, Si, Fe, As, S in its structure, silver was found in globules associated lead in the slag and the furutobeite specie. The leaching study was conducted to evaluate process variables such as NaCN concentration: from 7.8x10^-3M - 1.26x10^-1M, temperature: 25-50°C, particle size: +140 mesh to -400 mesh, stirring speed of 750 rpm - 900 rpm. All studies were performed with a NaOH concentration of 0.2 M. The optimal values of silver recovery encountered in conditions of 7.8x10^-3M NaCN, agitation rate of 750 rpm, temperature of 35°C and with a treatment time of 240 min. We also observed that a particle size -400 mesh will have optimum recoveries compared to +140 mesh, +200, +270 and +325.

Original language	English
Title of host publication	Characterization of Minerals, Metals, and Materials 2015
Publisher	Springer International Publishing
Pages	695-702
Number of pages	8
ISBN (Electronic)	9783319481913
ISBN (Print)	9781119082460
DOIs	https://doi.org/10.1007/978-3-319-48191-3_88
State	Published - 1 Jan 2016
Externally published	Yes

Keywords

Silver cyanidation
Slag

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10.1007/978-3-319-48191-3_88

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title = "Cyanidation study of slag rich in silver",

abstract = "Slag from smelting reduction processes were characterized by chemical analysis, XRD, SEM-EDS and XRF. The results revealed Ag concentrations of 362 g/t of slag, the slag mineralogical characterization by XRD and SEM-EDS showed mineralogical species oxidized complex containing Pb, Zn, Ca, Si, Fe, As, S in its structure, silver was found in globules associated lead in the slag and the furutobeite specie. The leaching study was conducted to evaluate process variables such as NaCN concentration: from 7.8x10-3M - 1.26x10-1M, temperature: 25-50°C, particle size: +140 mesh to -400 mesh, stirring speed of 750 rpm - 900 rpm. All studies were performed with a NaOH concentration of 0.2 M. The optimal values of silver recovery encountered in conditions of 7.8x10-3M NaCN, agitation rate of 750 rpm, temperature of 35°C and with a treatment time of 240 min. We also observed that a particle size -400 mesh will have optimum recoveries compared to +140 mesh, +200, +270 and +325.",

keywords = "Silver cyanidation, Slag",

author = "Miguel P{\'e}rez-Labra and Romero-Serrano, {J. Antonio} and {\'A}vila-Davila, {E. O.} and M. Reyes-P{\'e}rez and Barrientos-Hern{\'a}ndez, {F. R.} and Lira-Hern{\'a}ndez, {I. A.}",

note = "Publisher Copyright: {\textcopyright} 2016 by The Minerals, Metals & Materials Society.",

year = "2016",

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doi = "10.1007/978-3-319-48191-3_88",

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TY - CHAP

T1 - Cyanidation study of slag rich in silver

AU - Pérez-Labra, Miguel

AU - Romero-Serrano, J. Antonio

AU - Ávila-Davila, E. O.

AU - Reyes-Pérez, M.

AU - Barrientos-Hernández, F. R.

AU - Lira-Hernández, I. A.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Slag from smelting reduction processes were characterized by chemical analysis, XRD, SEM-EDS and XRF. The results revealed Ag concentrations of 362 g/t of slag, the slag mineralogical characterization by XRD and SEM-EDS showed mineralogical species oxidized complex containing Pb, Zn, Ca, Si, Fe, As, S in its structure, silver was found in globules associated lead in the slag and the furutobeite specie. The leaching study was conducted to evaluate process variables such as NaCN concentration: from 7.8x10-3M - 1.26x10-1M, temperature: 25-50°C, particle size: +140 mesh to -400 mesh, stirring speed of 750 rpm - 900 rpm. All studies were performed with a NaOH concentration of 0.2 M. The optimal values of silver recovery encountered in conditions of 7.8x10-3M NaCN, agitation rate of 750 rpm, temperature of 35°C and with a treatment time of 240 min. We also observed that a particle size -400 mesh will have optimum recoveries compared to +140 mesh, +200, +270 and +325.

AB - Slag from smelting reduction processes were characterized by chemical analysis, XRD, SEM-EDS and XRF. The results revealed Ag concentrations of 362 g/t of slag, the slag mineralogical characterization by XRD and SEM-EDS showed mineralogical species oxidized complex containing Pb, Zn, Ca, Si, Fe, As, S in its structure, silver was found in globules associated lead in the slag and the furutobeite specie. The leaching study was conducted to evaluate process variables such as NaCN concentration: from 7.8x10-3M - 1.26x10-1M, temperature: 25-50°C, particle size: +140 mesh to -400 mesh, stirring speed of 750 rpm - 900 rpm. All studies were performed with a NaOH concentration of 0.2 M. The optimal values of silver recovery encountered in conditions of 7.8x10-3M NaCN, agitation rate of 750 rpm, temperature of 35°C and with a treatment time of 240 min. We also observed that a particle size -400 mesh will have optimum recoveries compared to +140 mesh, +200, +270 and +325.

KW - Silver cyanidation

KW - Slag

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U2 - 10.1007/978-3-319-48191-3_88

DO - 10.1007/978-3-319-48191-3_88

M3 - Capítulo

SN - 9781119082460

SP - 695

EP - 702

BT - Characterization of Minerals, Metals, and Materials 2015

PB - Springer International Publishing

ER -

Cyanidation study of slag rich in silver

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