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Química Nova
Article . 2001
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Adsorção de xantatos sobre pirita Adsorption of xanthate on pyrite

descriptionPublicationkeyboard_double_arrow_right Article 01 Oct 2001 English Publisher:Sociedade Brasileira de QuímicaJournal:Química Nova (issn: 0100-4042, Copyright policy )
Authors: Fábio Garcia Penha; Vivian Cristina Spier; Nito Angelo Debacher;

Adsorção de xantatos sobre pirita Adsorption of xanthate on pyrite

Abstract

This paper presents a study of adsorption of xanthate with alkyl chain of two (C2XK), four (C4XK) and eight (C8XK) atoms of carbon, on pyrite from Santa Catarina, Brazil. The results showed that pyrite surface changes from hydrophilic to hydrophobic when xanthate is adsorbed increasing the contact angle to 35º for C2XK, and to 90º for C4XK and C8XK. The rate of flotation of pyrite particles after adsorption increases with the increase of the number of carbon atoms in the alkyl chain in agreement with the results of contact angle measurements.

Keywords

Chemistry, adsorption, contact angle, QD1-999, pyrite

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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