Dissolution mechanism of silver in molten slags

Joo Hyun Park; Dong Joon Min

Dissolution mechanism of silver in molten slags

Department of Materials Science and Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

The solubility of silver in the MO-B₂O₃ (MO = CaO, BaO, and Na₂O) and CaO-RO (RO = SiO₂ and Al₂O₃) slags was measured at high temperatures to understand the thermodynamic behaviour of silver in molten slags and to obtain the measure of basicity. The dissolution of silver both into the acidic and basic slags at P_o2 ≤ 10^-13 atm is represented by the following reactions: Ag(1)+ 1/4O₂(g)=Ag⁺(slag)+ 1/2O^2-(slag) (in the acidic slags) Ag(1)+O^2-(slag)=Ag^2-(slag)+1/2O₂(g) (in the basic slags) The dissolution of silver into the basic slags at P_o2 ≥ 10^-13 atm is represented by the following reaction from the effect of slag basicity and oxygen partial pressure on silver solubility. Ag(1)+1/2O₂(g)+O^2-(slag)=AgO₂^2-(slag ) The viscosity, which is affected by slag basicity, can be quantified by introducing the basicity scale obtained from silver solubility in the slag.

Original language	English
Pages	439-443
Number of pages	5
Publication status	Published - 2000
Event	International Congress on Mineral Processing and Extractive Metallurgy (Minprex 2000) - Melbourne, Australia Duration: 2000 Sept 11 → 2000 Sept 13

Other

Other	International Congress on Mineral Processing and Extractive Metallurgy (Minprex 2000)
Country/Territory	Australia
City	Melbourne
Period	00/9/11 → 00/9/13

All Science Journal Classification (ASJC) codes

General Materials Science

Cite this

@conference{df6a339281624606946ec705af2f4c1a,

title = "Dissolution mechanism of silver in molten slags",

abstract = "The solubility of silver in the MO-B2O3 (MO = CaO, BaO, and Na2O) and CaO-RO (RO = SiO2 and Al2O3) slags was measured at high temperatures to understand the thermodynamic behaviour of silver in molten slags and to obtain the measure of basicity. The dissolution of silver both into the acidic and basic slags at Po2 ≤ 10-13 atm is represented by the following reactions: Ag(1)+ 1/4O2(g)=Ag+(slag)+ 1/2O2-(slag) (in the acidic slags) Ag(1)+O2-(slag)=Ag2-(slag)+1/2O2(g) (in the basic slags) The dissolution of silver into the basic slags at Po2 ≥ 10-13 atm is represented by the following reaction from the effect of slag basicity and oxygen partial pressure on silver solubility. Ag(1)+1/2O2(g)+O2-(slag)=AgO22-(slag ) The viscosity, which is affected by slag basicity, can be quantified by introducing the basicity scale obtained from silver solubility in the slag.",

author = "Park, {Joo Hyun} and Min, {Dong Joon}",

year = "2000",

language = "English",

pages = "439--443",

note = "International Congress on Mineral Processing and Extractive Metallurgy (Minprex 2000) ; Conference date: 11-09-2000 Through 13-09-2000",

}

TY - CONF

T1 - Dissolution mechanism of silver in molten slags

AU - Park, Joo Hyun

AU - Min, Dong Joon

PY - 2000

Y1 - 2000

N2 - The solubility of silver in the MO-B2O3 (MO = CaO, BaO, and Na2O) and CaO-RO (RO = SiO2 and Al2O3) slags was measured at high temperatures to understand the thermodynamic behaviour of silver in molten slags and to obtain the measure of basicity. The dissolution of silver both into the acidic and basic slags at Po2 ≤ 10-13 atm is represented by the following reactions: Ag(1)+ 1/4O2(g)=Ag+(slag)+ 1/2O2-(slag) (in the acidic slags) Ag(1)+O2-(slag)=Ag2-(slag)+1/2O2(g) (in the basic slags) The dissolution of silver into the basic slags at Po2 ≥ 10-13 atm is represented by the following reaction from the effect of slag basicity and oxygen partial pressure on silver solubility. Ag(1)+1/2O2(g)+O2-(slag)=AgO22-(slag ) The viscosity, which is affected by slag basicity, can be quantified by introducing the basicity scale obtained from silver solubility in the slag.

AB - The solubility of silver in the MO-B2O3 (MO = CaO, BaO, and Na2O) and CaO-RO (RO = SiO2 and Al2O3) slags was measured at high temperatures to understand the thermodynamic behaviour of silver in molten slags and to obtain the measure of basicity. The dissolution of silver both into the acidic and basic slags at Po2 ≤ 10-13 atm is represented by the following reactions: Ag(1)+ 1/4O2(g)=Ag+(slag)+ 1/2O2-(slag) (in the acidic slags) Ag(1)+O2-(slag)=Ag2-(slag)+1/2O2(g) (in the basic slags) The dissolution of silver into the basic slags at Po2 ≥ 10-13 atm is represented by the following reaction from the effect of slag basicity and oxygen partial pressure on silver solubility. Ag(1)+1/2O2(g)+O2-(slag)=AgO22-(slag ) The viscosity, which is affected by slag basicity, can be quantified by introducing the basicity scale obtained from silver solubility in the slag.

UR - http://www.scopus.com/inward/record.url?scp=0034589116&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034589116&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:0034589116

SP - 439

EP - 443

T2 - International Congress on Mineral Processing and Extractive Metallurgy (Minprex 2000)

Y2 - 11 September 2000 through 13 September 2000

ER -

Dissolution mechanism of silver in molten slags

Abstract

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