Montmorillonite: A comparison of methods for its determination in foundry bentonites

Autor:	Holtzer, M., Artur Bobrowski, Grabowska, B.
Jazyk:	angličtina
Rok vydání:	2011
Předmět:	lcsh:TN1-997 FTIR bentonite green sands montmorillonite foundry lcsh:Mining engineering. Metallurgy
Zdroj:	Metalurgija, Vol 50, Iss 2, Pp 119-122 (2011) Scopus-Elsevier
ISSN:	1334-2576 0543-5846
Popis:	A comparison and estimation of usefulness of a quantitative analysis of montmorillonite in foundry bentonites, was the aim of this research. The investigations were made by means of three different techniques: methylene blue (MB) adsorption method, Cu(II)-triethylenetetramine complex (Cu(II)-TET) adsorption method, and infrared spectroscopy (FTIR) method. Tests were performed for 9 kinds of bentonites originated from various producers. The achieved results indicated that, the results obtained by the FTIR method were, in general, even 10% lower than the ones obtained by other methods. The best correlation with the data given by the producers were obtained for the Cu(II)-TET method. In addition, this method was characterised by the smallest value of standard deviations. A very essential advantage of the Cu(II)-TET method is a much shorter time needed for the analysis and its easier execution, which is important under production conditions.
Databáze:	OpenAIRE
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