University of Oulu

Morales, Y., Herrera, N., & Pérez, K. (2021). Lithium carbonate sedimentation using flocculants with different ionic bases. Chemical Industry, 75(4), 205–212.

Lithium carbonate sedimentation using flocculants with different ionic bases

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Author: Morales, Yam1; Herrera, Nelson1,2; Pérez, Kevin1,3,4
Organizations: 1Metallurgical and Mining Engineering Department, Universidad Católica del Norte, Antofagasta 1270709, Chile
2Oulu Mining School, University of Oulu, Oulu 90570, Finland
3Faculty of Engineering and Architecture, Universidad Arturo Prat, Almirante Juan José Latorre, Antofagasta, Chile
4Department of Chemical Engineering and Mineral Processes, Faculty of Engineering, Universidad de Antofagasta, Antofagasta, Chile
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.5 MB)
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Language: English
Published: Association of Chemical Engineers of Serbia, 2021
Publish Date: 2021-10-07


Lithium has become a metal of enormous interest worldwide. The extensive use of recharge-able batteries for a range of applications has pushed for rapid growth in demand for lithium carbonate. This compound is produced by crystallization, by reaction with lithium chloride (in solution) and by adding sodium carbonate. Low sedimentation rates in the evaporation pools present a problem in the crystallization process. For this reason, in this work, mineral sedimen-tation tests were carried out with the use of two flocculant types with different ionic charges. The tests were carried out at a laboratory level using different dosages for each flocculant and measurements were performed to obtain the increase in the content of solids in the sediment. The anionic flocculant had better performance as compared to that of the cationic flocculant, increasing the sedimentation rate of lithium carbonate by up to 6.5. However, similar solids contents were obtained with the use of the cationic flocculant at 3.5 times lower dosage making it the flocculant of choice regarding the economic point of view.

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Series: Hemijska industrija
ISSN: 0367-598X
ISSN-E: 2217-7426
ISSN-L: 0367-598X
Volume: 75
Issue: 4
Pages: 205 - 212
DOI: 10.2298/HEMIND201128020M
Type of Publication: A1 Journal article – refereed
Field of Science: 215 Chemical engineering
1171 Geosciences
Copyright information: © 2021 The Author(s). This article is published under the CreativeCommons Attribution Attribution-NonCommercial-NoDerivs (CC BY-NC-ND 4.0) licence.