Facile Remediation Method of Copper Sulfide by Nitrogen Pre-Treatment

Abstract:

Article Preview

The deactivation and destabilization of copper sulfide when exposed to an oxidizing environment has led to the economical concerns as this sulfidic material can be easily destroyed by a series of oxidation processes. A promising and effective remediation technique in limiting the contact between covellite (CuS) and oxygen has been developed using a simple, hassle-free, non-corrosive, and eco-friendly pre-treatment of nitrogen approach. This remediation technique is remarkably effective as various techniques such as powder XRD, EDX, elemental mapping, and TGA-MS analyses have confirmed that covellite prepared with the pre-treatment of nitrogen does not oxidize to any mixed phase compound. Meanwhile, the study also shows that covellite stored without the pre-treatment of nitrogen has transformed to a mixed phase of pentahydrate copper sulfate and covellite. Hence, this method can be practically exercised not only on covellite, but possibly on other metal sulfides which are prone to be attacked by oxygen and water molecules in oxidizing environment.

Info:

Periodical:

Advanced Materials Research (Volumes 361-363)

Edited by:

Qunjie Xu, Honghua Ge and Junxi Zhang

Pages:

1445-1450

DOI:

10.4028/www.scientific.net/AMR.361-363.1445

Citation:

P. L. Yap et al., "Facile Remediation Method of Copper Sulfide by Nitrogen Pre-Treatment", Advanced Materials Research, Vols. 361-363, pp. 1445-1450, 2012

Online since:

October 2011

Export:

Price:

$35.00

[1] L. Reijnen, B. Meester, A. Goossens and J. Schoonman: Chem. Vapor. Depos. Vol. 9 (2003), 9, p.15.

[2] J. Johansson, J. Kostamo, M. Karppinen and L. Niinistö: J. Mater. Chem. Vol. 12 (2002), p.1022.

[3] S. D. Sartale and C. D. Lokhande: Mater. Chem. Phys. Vol. 65 (2000), p.63.

[4] A. Malyarevich, K. Yumashev, N. Posnov, V. Mikhailov, V. Gurin, V. Prokopenko, A. Alexeenko and I. Melnichenko: J. Appl. Phys. Vol. 87 (2000), p.212.

DOI: 10.1063/1.371846

[5] J. S. Chung and H. J. Sohn: J. Power Sources Vol. 108 (2002), p.226.

[6] T. Chivers: J. Chem. Soc. Dalton (1996), p.1185.

[7] A. E. Raevskaya, A. L. Stroyuk, S. Y. Kuchmii and A. I. Kryukov: J. Mol. A- Chem. Vol. 212 (2004), p.259.

[8] S. Y. Kuchmii and A. V. Korzhak: Theor. Exp. Chem. Vol. 37 (2001), p.36.

[9] A. A. Sagade and R. Sharma: Sensor Actuat. B- Chem. Vol: 133 (2008), p.135.

[10] B. G. Lottermoser, in: Mine Wastes Characterization, Treatment, and Environment Impacts, 3rd edn, Springer, New York (2010).

[11] N. Belzile, D. Goldsack, S. Maki, and A. McDonald, in: Acid Mine Drainage in the Sudbury Area, Ontario, edited by N. Eyles, of Environmental Geology of Urban Areas, Geological Association of Canada (1997).

[12] D. W. Blowes, C. J. Ptacek, and J. L. Jambor, in: Remediation and Prevention of Low Quality Drainage from Tailings Impoundments, edited by J. L. Jambor, and D. W. Blowes, of The Environmental Geochemistry of Sulfide Mine Wastes, Mineralogical Association of Canada (1994).

DOI: 10.1016/j.apgeochem.2015.01.009

[13] R. V. Nicholson, R. W. Gillham, J. A. Cherry and E. J. Reardon, Can. Geotech. J. Vol. 26 (1989), p.1.

[14] N. Hmidi and L. M. Amaratunga: Stabilization of Reactive Pyrrhotite Tailings for Backfill Using Cold-Bond Agglomeration Process (Proc. 3rd International Symp. on Waste Processing and Recycling in Mineral and Metallurgical Industries, Canada 1998).

[15] L. M. Amaratunga: A novel Concept of Safe Disposal of Acid Generating by Agglomeration and Encapsulating Alkaline and Bactericidal Additives (The Minerals, Metals and Materials Society, 1991).

[16] J. Dunn, and C. Muzenda: Thermochim. Acta Vol. 369 (2001), p.117.

[17] B. Brunetti, V. Piacente and P. Scardala: J. Alloy. Compd. Vol. 206 (1994), p.113.

In order to see related information, you need to Login.