Silver cementation with zinc from residual X ray fixer, experimental and thermochemical study

M. Pérez Labra; M. Reyes Pérez; J. A.Romero Serrano; E. O.Ávila Dávila; F. R.Barrientos Hernández; Pandiyan Thangarasu

doi:10.1007/978-3-319-48210-1_76

Silver cementation with zinc from residual X ray fixer, experimental and thermochemical study

M. Pérez Labra, M. Reyes Pérez, J. A.Romero Serrano, E. O.Ávila Dávila, F. R.Barrientos Hernández, Pandiyan Thangarasu

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

2 Scopus citations

Abstract

Silver cementation with zinc from residual X ray fixers (XRF) was studied. The chemical analysis of XRF showed 5.16 g/l (Ag), 0.56 g/l (Al), 5.24 g/L (K), 7.02 g/L (Na) and 172.56 g/L (S). The cementation process in terms of solution pH was thermodynamically modeled using FactSage by constructing the potential-pH diagram at 298.15 K. This diagram showed that the cementation process leads to metallic silver together with residual unreacted zinc. The parameters experimentally evaluated were: pH (ranged from 3.0 to 7.0, temperature (ranged from 298.15 to 318.15 K) and the Ag:Zn weight ratio (1:1, 1:2, 1:3, 1:4 and 1:5). The maxim silver cementation (99.99 % Ag) was obtained at 90 s of reaction, pH 6.0, 318 K and Ag:Zn equal to 1:3. Silver cementation increases whit the Ag:Zn weight ratio, pH and temperature increases. The X-Ray and SEM-EDS results showed that the cementation product is formed by Ag and Zn.

Original language	English
Title of host publication	Characterization of Minerals, Metals, and Materials 2016
Publisher	Springer International Publishing
Pages	605-613
Number of pages	9
ISBN (Electronic)	9783319482101
ISBN (Print)	9781119264392
DOIs	https://doi.org/10.1007/978-3-319-48210-1_76
State	Published - 1 Jan 2016
Externally published	Yes

Keywords

Cementation
Silver
Thermochemical
X ray fixer
Zn powder

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10.1007/978-3-319-48210-1_76

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title = "Silver cementation with zinc from residual X ray fixer, experimental and thermochemical study",

abstract = "Silver cementation with zinc from residual X ray fixers (XRF) was studied. The chemical analysis of XRF showed 5.16 g/l (Ag), 0.56 g/l (Al), 5.24 g/L (K), 7.02 g/L (Na) and 172.56 g/L (S). The cementation process in terms of solution pH was thermodynamically modeled using FactSage by constructing the potential-pH diagram at 298.15 K. This diagram showed that the cementation process leads to metallic silver together with residual unreacted zinc. The parameters experimentally evaluated were: pH (ranged from 3.0 to 7.0, temperature (ranged from 298.15 to 318.15 K) and the Ag:Zn weight ratio (1:1, 1:2, 1:3, 1:4 and 1:5). The maxim silver cementation (99.99 % Ag) was obtained at 90 s of reaction, pH 6.0, 318 K and Ag:Zn equal to 1:3. Silver cementation increases whit the Ag:Zn weight ratio, pH and temperature increases. The X-Ray and SEM-EDS results showed that the cementation product is formed by Ag and Zn.",

keywords = "Cementation, Silver, Thermochemical, X ray fixer, Zn powder",

author = "Labra, {M. P{\'e}rez} and P{\'e}rez, {M. Reyes} and Serrano, {J. A.Romero} and D{\'a}vila, {E. O.{\'A}vila} and Hern{\'a}ndez, {F. R.Barrientos} and Pandiyan Thangarasu",

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T1 - Silver cementation with zinc from residual X ray fixer, experimental and thermochemical study

AU - Labra, M. Pérez

AU - Pérez, M. Reyes

AU - Serrano, J. A.Romero

AU - Dávila, E. O.Ávila

AU - Hernández, F. R.Barrientos

AU - Thangarasu, Pandiyan

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Silver cementation with zinc from residual X ray fixers (XRF) was studied. The chemical analysis of XRF showed 5.16 g/l (Ag), 0.56 g/l (Al), 5.24 g/L (K), 7.02 g/L (Na) and 172.56 g/L (S). The cementation process in terms of solution pH was thermodynamically modeled using FactSage by constructing the potential-pH diagram at 298.15 K. This diagram showed that the cementation process leads to metallic silver together with residual unreacted zinc. The parameters experimentally evaluated were: pH (ranged from 3.0 to 7.0, temperature (ranged from 298.15 to 318.15 K) and the Ag:Zn weight ratio (1:1, 1:2, 1:3, 1:4 and 1:5). The maxim silver cementation (99.99 % Ag) was obtained at 90 s of reaction, pH 6.0, 318 K and Ag:Zn equal to 1:3. Silver cementation increases whit the Ag:Zn weight ratio, pH and temperature increases. The X-Ray and SEM-EDS results showed that the cementation product is formed by Ag and Zn.

AB - Silver cementation with zinc from residual X ray fixers (XRF) was studied. The chemical analysis of XRF showed 5.16 g/l (Ag), 0.56 g/l (Al), 5.24 g/L (K), 7.02 g/L (Na) and 172.56 g/L (S). The cementation process in terms of solution pH was thermodynamically modeled using FactSage by constructing the potential-pH diagram at 298.15 K. This diagram showed that the cementation process leads to metallic silver together with residual unreacted zinc. The parameters experimentally evaluated were: pH (ranged from 3.0 to 7.0, temperature (ranged from 298.15 to 318.15 K) and the Ag:Zn weight ratio (1:1, 1:2, 1:3, 1:4 and 1:5). The maxim silver cementation (99.99 % Ag) was obtained at 90 s of reaction, pH 6.0, 318 K and Ag:Zn equal to 1:3. Silver cementation increases whit the Ag:Zn weight ratio, pH and temperature increases. The X-Ray and SEM-EDS results showed that the cementation product is formed by Ag and Zn.

KW - Cementation

KW - Silver

KW - Thermochemical

KW - X ray fixer

KW - Zn powder

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BT - Characterization of Minerals, Metals, and Materials 2016

PB - Springer International Publishing

ER -

Silver cementation with zinc from residual X ray fixer, experimental and thermochemical study

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