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Assessing the Combined Effect of Water Temperature and Complex Water Matrices on Xanthate Adsorption Using Multiple Linear Regression

Mhonde, Ngoni and Schreithofer, Nora and Corin, Kirsten and Mäkelä, Mikko (2020). Assessing the Combined Effect of Water Temperature and Complex Water Matrices on Xanthate Adsorption Using Multiple Linear Regression. Minerals. 10 , 733
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Abstract

The combined effect of dissolved ions and water temperature on the adsorption of a xanthate collector on chalcopyrite and pentlandite was investigated using multiple linear regression. Cationic species improved the adsorption of the collector on sulphide minerals through xanthate adsorption activation. Thiosulphate ions generally had a negative effect on collector adsorption, and the interaction of thiosulphate ions and cations effectively reduced collector adsorption on the sulphide minerals. With regards to temperature variation caused by seasonal variation, this study suggests that temperature can influence the adsorption of collectors in the flotation process and this should be approached on a case by case basis as it seems to differ with the type of mineral under investigation. These fundamental results prompt a discussion on how complex water matrices can affect interactions of reagents and sulphide minerals at the solid-liquid interface and the possible effect on flotation performance.

Authors/Creators:Mhonde, Ngoni and Schreithofer, Nora and Corin, Kirsten and Mäkelä, Mikko
Title:Assessing the Combined Effect of Water Temperature and Complex Water Matrices on Xanthate Adsorption Using Multiple Linear Regression
Year of publishing :2020
Volume:10
Article number:733
Number of Pages:17
Publisher:MDPI
ISSN:2075-163X
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Geochemistry
Keywords:pentlandite, chalcopyrite, adsorption, multiple linear regression, temperature, passivation
URN:NBN:urn:nbn:se:slu:epsilon-p-108678
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-108678
Additional ID:
Type of IDID
DOI10.3390/min10090733
Web of Science (WoS)000580089100001
ID Code:18691
Faculty:S - Faculty of Forest Sciences
Department:(S) > Department of Forest Biomaterials and Technology
Deposited By: SLUpub Connector
Deposited On:18 Nov 2020 15:23
Metadata Last Modified:18 Nov 2020 15:31

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