Synergistic Effect of DBP with CTAB on Flotation Separation of Quartz from Collophane

Collophane is difficult to upgrade by reverse flotation of quartz with amine collector alone due to its low grade, complex structure, fine dissemination grain size, etc. This investigation was conducted to explore the synergistic effect of dibutyl phthalate (DBP) as a surfactant with cetyltrimethyl...

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Autores principales:	Zhongxian Wu, Dongping Tao, Patrick Zhang, Xiaojun Jiang, Man Jiang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	quartz collophane DBP silicon removal reagent aggregation entrainment Mineralogy QE351-399.2
Acceso en línea:	https://doaj.org/article/2dcf16697d7d404c9a24552481adee8a
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id	oai:doaj.org-article:2dcf16697d7d404c9a24552481adee8a
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spelling	oai:doaj.org-article:2dcf16697d7d404c9a24552481adee8a2021-11-25T18:26:12ZSynergistic Effect of DBP with CTAB on Flotation Separation of Quartz from Collophane10.3390/min111111962075-163Xhttps://doaj.org/article/2dcf16697d7d404c9a24552481adee8a2021-10-01T00:00:00Zhttps://www.mdpi.com/2075-163X/11/11/1196https://doaj.org/toc/2075-163XCollophane is difficult to upgrade by reverse flotation of quartz with amine collector alone due to its low grade, complex structure, fine dissemination grain size, etc. This investigation was conducted to explore the synergistic effect of dibutyl phthalate (DBP) as a surfactant with cetyltrimethyl ammonium bromide (CTAB) as the collector on the separation of quartz from collophane by means of micro-flotation tests, surface tension and aggregate size measurements, and froth water mass fraction/recovery characterization. It was found that DBP reduced the surface tension of the reagent solution and enhanced the collision probability between bubbles and quartz particles by increasing the size of aggregates through increased hydrophobic interaction between the quartz particles and DBP droplets. The addition of DBP reduced the entrainment of fine collophane particles as a result of improved defoaming and increased the flotation recovery of quartz without resulting in any flotation of collophane at dosages lower than 200 mg/L. Flotation test results with the binary artificial mineral mixture showed that DBP improved the P<sub>2</sub>O<sub>5</sub> recovery, SiO<sub>2</sub> rejection, and P<sub>2</sub>O<sub>5</sub> grade by up to 7%, 12%, and 1%, respectively.Zhongxian WuDongping TaoPatrick ZhangXiaojun JiangMan JiangMDPI AGarticlequartzcollophaneDBPsilicon removal reagentaggregationentrainmentMineralogyQE351-399.2ENMinerals, Vol 11, Iss 1196, p 1196 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	quartz collophane DBP silicon removal reagent aggregation entrainment Mineralogy QE351-399.2
spellingShingle	quartz collophane DBP silicon removal reagent aggregation entrainment Mineralogy QE351-399.2 Zhongxian Wu Dongping Tao Patrick Zhang Xiaojun Jiang Man Jiang Synergistic Effect of DBP with CTAB on Flotation Separation of Quartz from Collophane
description	Collophane is difficult to upgrade by reverse flotation of quartz with amine collector alone due to its low grade, complex structure, fine dissemination grain size, etc. This investigation was conducted to explore the synergistic effect of dibutyl phthalate (DBP) as a surfactant with cetyltrimethyl ammonium bromide (CTAB) as the collector on the separation of quartz from collophane by means of micro-flotation tests, surface tension and aggregate size measurements, and froth water mass fraction/recovery characterization. It was found that DBP reduced the surface tension of the reagent solution and enhanced the collision probability between bubbles and quartz particles by increasing the size of aggregates through increased hydrophobic interaction between the quartz particles and DBP droplets. The addition of DBP reduced the entrainment of fine collophane particles as a result of improved defoaming and increased the flotation recovery of quartz without resulting in any flotation of collophane at dosages lower than 200 mg/L. Flotation test results with the binary artificial mineral mixture showed that DBP improved the P<sub>2</sub>O<sub>5</sub> recovery, SiO<sub>2</sub> rejection, and P<sub>2</sub>O<sub>5</sub> grade by up to 7%, 12%, and 1%, respectively.
format	article
author	Zhongxian Wu Dongping Tao Patrick Zhang Xiaojun Jiang Man Jiang
author_facet	Zhongxian Wu Dongping Tao Patrick Zhang Xiaojun Jiang Man Jiang
author_sort	Zhongxian Wu
title	Synergistic Effect of DBP with CTAB on Flotation Separation of Quartz from Collophane
title_short	Synergistic Effect of DBP with CTAB on Flotation Separation of Quartz from Collophane
title_full	Synergistic Effect of DBP with CTAB on Flotation Separation of Quartz from Collophane
title_fullStr	Synergistic Effect of DBP with CTAB on Flotation Separation of Quartz from Collophane
title_full_unstemmed	Synergistic Effect of DBP with CTAB on Flotation Separation of Quartz from Collophane
title_sort	synergistic effect of dbp with ctab on flotation separation of quartz from collophane
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/2dcf16697d7d404c9a24552481adee8a
work_keys_str_mv	AT zhongxianwu synergisticeffectofdbpwithctabonflotationseparationofquartzfromcollophane AT dongpingtao synergisticeffectofdbpwithctabonflotationseparationofquartzfromcollophane AT patrickzhang synergisticeffectofdbpwithctabonflotationseparationofquartzfromcollophane AT xiaojunjiang synergisticeffectofdbpwithctabonflotationseparationofquartzfromcollophane AT manjiang synergisticeffectofdbpwithctabonflotationseparationofquartzfromcollophane
_version_	1718411124191264768

Synergistic Effect of DBP with CTAB on Flotation Separation of Quartz from Collophane

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