Identification and geochemical modeling of processes controlling leaching of Cr(VI) and other major elements from chromite ore processing residue

• Published in: Geochimica et cosmochimica acta Vol. 66; no. 22; pp. 3927 - 3942
• Main Authors: Geelhoed, Jeanine S, Meeussen, Johannes C.L, Hillier, Stephen, Lumsdon, David G, Thomas, Rhodri P, Farmer, John G, Paterson, Edward
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.11.2002

Chromite ore processing residue (COPR) contains very high levels of chromium as Cr(III) and Cr(VI) and has a pH of ∼11.5 to 12. Millions of tonnes of COPR have in the past been deposited in urban areas. We have studied the factors that control leaching of Cr(VI), Ca, Al, Si, and Mg from COPR by mean...