Colorimetric determination of ether amine greases utilized in the flotation of iron ore

Ether amine greases are commonly used in the flotation of iron ore, and after use are discarded in the tailings dams. The aim of this work was to quantify a commercial ether amine using the bromocresol green dye in chloroform. The statistical data obtained show that the method is characterized by sa...

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Bibliographic Details
Published inJournal of analytical chemistry (New York, N.Y.) Vol. 64; no. 4; pp. 390 - 392
Main Authors Araujo, D. M., Yoshida, M. I., Carvalho, C. F.
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.04.2009
Subjects
Analytical Chemistry
Chemistry
Chemistry and Materials Science
Satisfactory Accuracy
Ammonium Salt
Grease
Colorimetric Determination
Solid Residue
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Summary:Ether amine greases are commonly used in the flotation of iron ore, and after use are discarded in the tailings dams. The aim of this work was to quantify a commercial ether amine using the bromocresol green dye in chloroform. The statistical data obtained show that the method is characterized by satisfactory accuracy and precision with a detection limit below 1 mg/L. The recovery obtained was 98.53%, in average. In addition, the method presented here provided a recovery of ether amine contained in effluents and solids higher than 98%.
ISSN:1061-9348
1608-3199
DOI:10.1134/S1061934809040121