Identifying nanoscale ferrihydrite in Hydrometallurgical residues

Autor:	O. G. M. Newman, J.B. Farrow, T. G. St. Pierre, Mitch Loan, Gordon Parkinson
Rok vydání:	2002
Předmět:	Diffraction Ferrihydrite Heterogeneous sample Materials science Chemical engineering Metallurgy General Engineering General Materials Science Degree of confidence Nanoscopic scale
Zdroj:	JOM. 54:40-43
ISSN:	1543-1851 1047-4838
Popis:	The identification of a disordered nanoscale material such as ferrihydrite in a heterogeneous sample environment, as is typically the case in a hydrometallurgical residue, requires a rigorous multifaceted characterization approach. An example of this is the identification of ferrihydrite in paragoethite process residues generated in zinc refining. In a pure-form ferrihydrite, a poorly crystalline iron(III) oxyhydroxide possesses a characteristic powder x-ray diffraction profile consisting of very broad low-intensity reflections. However, in coexistence with crystalline material, the diffraction profile may be masked, lost in the background noise, and easily overlooked. By using several characterization approaches in combination, ferrihydrite can be identified in a hydrometallurgical residue with a higher degree of confidence than can be achieved by the application of a single technique.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36f56509b98c0cdfbaa7bedd2b68798d https://doi.org/10.1007/bf02709187 Zobrazit plný text záznamu Full text from SpringerLink