Experimental determination of the liquidus surface (1473 K) in Cu-ZnO-SiO2-O system at various oxygen partial pressures

Longgong Xia; Zhihong Liu; Pekka Taskinen

Experimental determination of the liquidus surface (1473 K) in Cu-ZnO-SiO2-O system at various oxygen partial pressures

Longgong Xia
, Zhihong Liu
, Pekka Taskinen

Department of Chemical and Metallurgical Engineering

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

3 Citations (Scopus)

Abstract

Thermodynamic information of the Cu-ZnO-SiO2-O system has significant importance for high temperature industries. By employing the equilibration/quenching/EPMA technique, phase relation and liquidus surface of the Cu-ZnO-SiO2-O system at 1473 K has been systematically studied at various oxygen partial pressures (pure argon and 0.21 atm). No ternary compound was found. A pseudo-ternary phase diagram (Cu2O-ZnO-SiO2) was used to represent the liquidus of Cu-ZnO-SiO2-O system in equilibrium with air (PO2 = 0.21 atm). Two univariant equilibria (SiO2 + Zn2SiO4 + Oxide liquid, and Zn2SiO4 + ZnO + Oxide liquid) were found in the experiments. The phase equilibria of the Cu-ZnO-SiO2-O system in equilibrium with copper has also been studied at a fixed mole ration between SiO2 and SiO2 + ZnO. With increasing SiO2 content in initial pellets, the concentration of Cu in liquid oxide phase decreases rapidly. Solubility data of Cu in solid phases of Zn2SiO4, ZnO and SiO2 is also reported. © 2016 by The Minerals, Metals & Materials Society.

Original language	English
Title of host publication	10th International Conference on Molten Slags, Fluxes and Salts
Editors	Ramana G. Reddy, Pinakin Chaubal, P. Chris Pistorius, Uday Pal
Publisher	Wiley
Pages	971-978
ISBN (Electronic)	978-1-119-30876-8
Publication status	Published - 2016
MoE publication type	A4 Conference publication
Event	International Conference on Molten Slags, Fluxes and Salts - Seattle Grand Hyatt, Seattle, United States Duration: 22 May 2016 → 25 May 2016 Conference number: 10

Conference

Conference	International Conference on Molten Slags, Fluxes and Salts
Abbreviated title	MOLTEN
Country/Territory	United States
City	Seattle
Period	22/05/2016 → 25/05/2016

Raw Materials Research Infrastructure
Karppinen, M. (Manager)
School of Chemical Engineering
Facility/equipment: Facility

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@inproceedings{5a4b5e8450e64a709419430e92432031,

title = "Experimental determination of the liquidus surface (1473 K) in Cu-ZnO-SiO2-O system at various oxygen partial pressures",

abstract = "Thermodynamic information of the Cu-ZnO-SiO2-O system has significant importance for high temperature industries. By employing the equilibration/quenching/EPMA technique, phase relation and liquidus surface of the Cu-ZnO-SiO2-O system at 1473 K has been systematically studied at various oxygen partial pressures (pure argon and 0.21 atm). No ternary compound was found. A pseudo-ternary phase diagram (Cu2O-ZnO-SiO2) was used to represent the liquidus of Cu-ZnO-SiO2-O system in equilibrium with air (PO2 = 0.21 atm). Two univariant equilibria (SiO2 + Zn2SiO4 + Oxide liquid, and Zn2SiO4 + ZnO + Oxide liquid) were found in the experiments. The phase equilibria of the Cu-ZnO-SiO2-O system in equilibrium with copper has also been studied at a fixed mole ration between SiO2 and SiO2 + ZnO. With increasing SiO2 content in initial pellets, the concentration of Cu in liquid oxide phase decreases rapidly. Solubility data of Cu in solid phases of Zn2SiO4, ZnO and SiO2 is also reported. {\textcopyright} 2016 by The Minerals, Metals \& Materials Society.",

author = "Longgong Xia and Zhihong Liu and Pekka Taskinen",

note = "T{\"a}st{\"a} julkaisusta on Springerin versio: https://link.springer.com/book/10.1007/978-3-319-48769-4; 978-3-319-48769-4; 978-3-319-48625-3; DOI: 10.1007/978-3-319-48769-4 Scopus ID viittaa t{\"a}h{\"a}n versioon.; International Conference on Molten Slags, Fluxes and Salts, MOLTEN ; Conference date: 22-05-2016 Through 25-05-2016",

year = "2016",

language = "English",

pages = "971--978",

editor = "Reddy, \{Ramana G.\} and Chaubal, \{Pinakin \} and Pistorius, \{P. Chris\} and Pal, \{Uday \}",

booktitle = "10th International Conference on Molten Slags, Fluxes and Salts",

publisher = "Wiley",

address = "United Kingdom",

}

Xia, L, Liu, Z & Taskinen, P 2016, Experimental determination of the liquidus surface (1473 K) in Cu-ZnO-SiO2-O system at various oxygen partial pressures. in RG Reddy, P Chaubal, PC Pistorius & U Pal (eds), 10th International Conference on Molten Slags, Fluxes and Salts. Wiley, pp. 971-978, International Conference on Molten Slags, Fluxes and Salts, Seattle, Washington, United States, 22/05/2016.

Experimental determination of the liquidus surface (1473 K) in Cu-ZnO-SiO2-O system at various oxygen partial pressures. / Xia, Longgong; Liu, Zhihong; Taskinen, Pekka.
10th International Conference on Molten Slags, Fluxes and Salts. ed. / Ramana G. Reddy; Pinakin Chaubal; P. Chris Pistorius; Uday Pal. Wiley, 2016. p. 971-978.

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

TY - GEN

T1 - Experimental determination of the liquidus surface (1473 K) in Cu-ZnO-SiO2-O system at various oxygen partial pressures

AU - Xia, Longgong

AU - Liu, Zhihong

AU - Taskinen, Pekka

N1 - Conference code: 10

PY - 2016

Y1 - 2016

N2 - Thermodynamic information of the Cu-ZnO-SiO2-O system has significant importance for high temperature industries. By employing the equilibration/quenching/EPMA technique, phase relation and liquidus surface of the Cu-ZnO-SiO2-O system at 1473 K has been systematically studied at various oxygen partial pressures (pure argon and 0.21 atm). No ternary compound was found. A pseudo-ternary phase diagram (Cu2O-ZnO-SiO2) was used to represent the liquidus of Cu-ZnO-SiO2-O system in equilibrium with air (PO2 = 0.21 atm). Two univariant equilibria (SiO2 + Zn2SiO4 + Oxide liquid, and Zn2SiO4 + ZnO + Oxide liquid) were found in the experiments. The phase equilibria of the Cu-ZnO-SiO2-O system in equilibrium with copper has also been studied at a fixed mole ration between SiO2 and SiO2 + ZnO. With increasing SiO2 content in initial pellets, the concentration of Cu in liquid oxide phase decreases rapidly. Solubility data of Cu in solid phases of Zn2SiO4, ZnO and SiO2 is also reported. © 2016 by The Minerals, Metals & Materials Society.

AB - Thermodynamic information of the Cu-ZnO-SiO2-O system has significant importance for high temperature industries. By employing the equilibration/quenching/EPMA technique, phase relation and liquidus surface of the Cu-ZnO-SiO2-O system at 1473 K has been systematically studied at various oxygen partial pressures (pure argon and 0.21 atm). No ternary compound was found. A pseudo-ternary phase diagram (Cu2O-ZnO-SiO2) was used to represent the liquidus of Cu-ZnO-SiO2-O system in equilibrium with air (PO2 = 0.21 atm). Two univariant equilibria (SiO2 + Zn2SiO4 + Oxide liquid, and Zn2SiO4 + ZnO + Oxide liquid) were found in the experiments. The phase equilibria of the Cu-ZnO-SiO2-O system in equilibrium with copper has also been studied at a fixed mole ration between SiO2 and SiO2 + ZnO. With increasing SiO2 content in initial pellets, the concentration of Cu in liquid oxide phase decreases rapidly. Solubility data of Cu in solid phases of Zn2SiO4, ZnO and SiO2 is also reported. © 2016 by The Minerals, Metals & Materials Society.

M3 - Conference article in proceedings

SP - 971

EP - 978

BT - 10th International Conference on Molten Slags, Fluxes and Salts

A2 - Reddy, Ramana G.

A2 - Chaubal, Pinakin

A2 - Pistorius, P. Chris

A2 - Pal, Uday

PB - Wiley

T2 - International Conference on Molten Slags, Fluxes and Salts

Y2 - 22 May 2016 through 25 May 2016

ER -

Experimental determination of the liquidus surface (1473 K) in Cu-ZnO-SiO2-O system at various oxygen partial pressures

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