The solubility and activity determination of NiO in the SiO<inf>2</inf>-NiO-FeO system

Alejandro Cruz Ramírez, Antonio Romero Serrano, Elías Rangel Salinas, Adán Ramírez López, Marissa Vargas Ramírez

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A structural model for the liquid phase of silicate systems was used to obtain the SiO2-NiO-FeO phase diagram and the NiO activities at 1573 and 1673 K. The NiO activities were determined experimentally by equilibrating a pure nickel crucible with an iron-silicate slag and CO-CO2 gas mixture to produce pO2 = 10-6 and 10-10 atm. The NiO activities obtained by the structural model are in good agreement with those obtained experimentally for strongly reduction conditions (10-10 atm), due to the structural model consider only the iron in the divalent state. The Fe3+/Fe2+ ratio and the nickel oxide solubility were increased when the oxygen partial pressure and the temperature were increased. © 2008 Elsevier B.V. All rights reserved.
Original languageAmerican English
Pages (from-to)3533-3539
Number of pages3179
JournalJournal of Non-Crystalline Solids
DOIs
StatePublished - 15 Jul 2008
Externally publishedYes

Fingerprint

Structural Models
Solubility
Silicates
solubility
silicates
Iron
iron
Nickel oxide
nickel oxides
Partial Pressure
slags
Crucibles
crucibles
Carbon Monoxide
Nickel
Gas mixtures
Partial pressure
Slags
Phase diagrams
partial pressure

Cite this

@article{578042c2dbb54422bbcafb7762c47925,
title = "The solubility and activity determination of NiO in the SiO2-NiO-FeO system",
abstract = "A structural model for the liquid phase of silicate systems was used to obtain the SiO2-NiO-FeO phase diagram and the NiO activities at 1573 and 1673 K. The NiO activities were determined experimentally by equilibrating a pure nickel crucible with an iron-silicate slag and CO-CO2 gas mixture to produce pO2 = 10-6 and 10-10 atm. The NiO activities obtained by the structural model are in good agreement with those obtained experimentally for strongly reduction conditions (10-10 atm), due to the structural model consider only the iron in the divalent state. The Fe3+/Fe2+ ratio and the nickel oxide solubility were increased when the oxygen partial pressure and the temperature were increased. {\circledC} 2008 Elsevier B.V. All rights reserved.",
author = "Ram{\'i}rez, {Alejandro Cruz} and Serrano, {Antonio Romero} and Salinas, {El{\'i}as Rangel} and L{\'o}pez, {Ad{\'a}n Ram{\'i}rez} and Ram{\'i}rez, {Marissa Vargas}",
year = "2008",
month = "7",
day = "15",
doi = "10.1016/j.jnoncrysol.2008.03.027",
language = "American English",
pages = "3533--3539",
journal = "Journal of Non-Crystalline Solids",
issn = "0022-3093",
publisher = "Elsevier",

}

The solubility and activity determination of NiO in the SiO<inf>2</inf>-NiO-FeO system. / Ramírez, Alejandro Cruz; Serrano, Antonio Romero; Salinas, Elías Rangel; López, Adán Ramírez; Ramírez, Marissa Vargas.

In: Journal of Non-Crystalline Solids, 15.07.2008, p. 3533-3539.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The solubility and activity determination of NiO in the SiO2-NiO-FeO system

AU - Ramírez, Alejandro Cruz

AU - Serrano, Antonio Romero

AU - Salinas, Elías Rangel

AU - López, Adán Ramírez

AU - Ramírez, Marissa Vargas

PY - 2008/7/15

Y1 - 2008/7/15

N2 - A structural model for the liquid phase of silicate systems was used to obtain the SiO2-NiO-FeO phase diagram and the NiO activities at 1573 and 1673 K. The NiO activities were determined experimentally by equilibrating a pure nickel crucible with an iron-silicate slag and CO-CO2 gas mixture to produce pO2 = 10-6 and 10-10 atm. The NiO activities obtained by the structural model are in good agreement with those obtained experimentally for strongly reduction conditions (10-10 atm), due to the structural model consider only the iron in the divalent state. The Fe3+/Fe2+ ratio and the nickel oxide solubility were increased when the oxygen partial pressure and the temperature were increased. © 2008 Elsevier B.V. All rights reserved.

AB - A structural model for the liquid phase of silicate systems was used to obtain the SiO2-NiO-FeO phase diagram and the NiO activities at 1573 and 1673 K. The NiO activities were determined experimentally by equilibrating a pure nickel crucible with an iron-silicate slag and CO-CO2 gas mixture to produce pO2 = 10-6 and 10-10 atm. The NiO activities obtained by the structural model are in good agreement with those obtained experimentally for strongly reduction conditions (10-10 atm), due to the structural model consider only the iron in the divalent state. The Fe3+/Fe2+ ratio and the nickel oxide solubility were increased when the oxygen partial pressure and the temperature were increased. © 2008 Elsevier B.V. All rights reserved.

UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=46549085012&origin=inward

UR - https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=46549085012&origin=inward

U2 - 10.1016/j.jnoncrysol.2008.03.027

DO - 10.1016/j.jnoncrysol.2008.03.027

M3 - Article

SP - 3533

EP - 3539

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

SN - 0022-3093

ER -