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Interactions between iron oxides and copper oxides under hydrothermal conditions

Abstract

Under hydrothermal conditions, magnetite and hematite have been shown to undergo interconversion reactions, the extent of which is controlled in part by the presence of copper oxides. In oxygenated water, the degree to which magnetite was oxidized to hematite was found to be dependent on the presence of CuO or Cu{sub 2}O. When these materials were absent, the oxidation of magnetite was limited by the dissolved oxygen in the aqueous system. Participation of the copper oxides in the oxidation process was confirmed by more complete conversion of magnetite was also influenced by the presence of the copper oxides. In addition to driving the reduction to completion, the presence of the copper oxides also exerted a strong influence over the morphology of the magnetite that formed. (author). 13 refs., 1 tab., 3 figs.
Publication Date:
Aug 01, 1995
Product Type:
Technical Report
Report Number:
AECL-11348
Reference Number:
SCA: 360105; PA: AIX-27:050379; EDB-96:106464; NTS-96:019443; SN: 96001617342
Resource Relation:
Other Information: PBD: Aug 1995
Subject:
36 MATERIALS SCIENCE; MAGNETITE; COPPER OXIDES; OXIDATION; AQUEOUS SOLUTIONS; CORROSION; HEMATITE; IRON OXIDES; TEMPERATURE DEPENDENCE
OSTI ID:
252780
Research Organizations:
Atomic Energy of Canada Ltd., Pinawa, MB (Canada). Whiteshell Labs.
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Other: ON: DE96628719; TRN: CA9600115050379
Availability:
INIS; OSTI as DE96628719
Submitting Site:
INIS
Size:
20 p.
Announcement Date:

Citation Formats

McGarvey, G B, and Owen, D G. Interactions between iron oxides and copper oxides under hydrothermal conditions. Canada: N. p., 1995. Web.
McGarvey, G B, & Owen, D G. Interactions between iron oxides and copper oxides under hydrothermal conditions. Canada.
McGarvey, G B, and Owen, D G. 1995. "Interactions between iron oxides and copper oxides under hydrothermal conditions." Canada.
@misc{etde_252780,
title = {Interactions between iron oxides and copper oxides under hydrothermal conditions}
author = {McGarvey, G B, and Owen, D G}
abstractNote = {Under hydrothermal conditions, magnetite and hematite have been shown to undergo interconversion reactions, the extent of which is controlled in part by the presence of copper oxides. In oxygenated water, the degree to which magnetite was oxidized to hematite was found to be dependent on the presence of CuO or Cu{sub 2}O. When these materials were absent, the oxidation of magnetite was limited by the dissolved oxygen in the aqueous system. Participation of the copper oxides in the oxidation process was confirmed by more complete conversion of magnetite was also influenced by the presence of the copper oxides. In addition to driving the reduction to completion, the presence of the copper oxides also exerted a strong influence over the morphology of the magnetite that formed. (author). 13 refs., 1 tab., 3 figs.}
place = {Canada}
year = {1995}
month = {Aug}
}