However, addition of 3 vol.-% Y2O3 virtually prevents any attack by the Na2SO4, preventing sulphur penetration into the alloy and promoting the formation of a protective Cr2O3 layer.Under non-condensing conditions, all of the alloys tested oxidize in an unaccelerated manner, supporting the ...
Anaerobic oxidation of methane (AOM) reduces methane emissions from marine ecosystems but we know little about AOM in rivers, whose role in the global carbon cycle is increasingly recognized. We measured AOM potentials driven by different electron acceptors, including nitrite, nitrate, sulfate, and f...
The residues are found to also contain a number of other intermediate phases in addition to covellite and sulphur, such as antlerite and clinoatacamite, depending upon the leach conditions employed. Keywords: chalcopyrite; chloride; pressure oxidation; covellite; clinoatacamite...