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Propyl gallate: A novel collector for flotation separation of fluorite from calcite.

Authors :
Gao, Jiande
Sun, Wei
Hu, Yuehua
Wang, Li
Liu, Runqing
Gao, Zhiyong
Chen, Pan
Tang, Honghu
Jiang, Wei
Lyu, Fei
Source :
Chemical Engineering Science. Jan2019, Vol. 193, p255-263. 9p.
Publication Year :
2019

Abstract

Highlights • Propyl gallate was used as a excellent flotation collector for fluorite. • Separation of fluorite from calcite without using any depressant can be achieved. • The flotation mechanism of fluorite from calcite was studied. • Adsorption of PG onto the surfaces of fluorite and calcite was studied. Abstract In real flotation systems, the flotation separation of fluorite from calcite is a challenge due to the similar surface properties of these two minerals. The purpose of this paper is to develop a highly selective flotation collector for the separation. Propyl gallate (PG) was introduced as a collector for selective flotation separation of fluorite from calcite. The separation of fluorite from calcite without using any depressant can be achieved by using PG as the collector. The flotation mechanism of fluorite and calcite was studied by zeta potential measurements, adsorption, FT-IR and XPS analysis. The results indicated that phenolic hydroxyls were the functional groups of PG which can selectively adsorb on fluorite, and the adsorption amount of PG on the surface of fluorite was larger than on calcite. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00092509
Volume :
193
Database :
Academic Search Index
Journal :
Chemical Engineering Science
Publication Type :
Academic Journal
Accession number :
132365048
Full Text :
https://doi.org/10.1016/j.ces.2018.09.017