The activation mechanism of Bi3+ ions to rutile flotation in a strong acidic environment

Xiao, Wei, Cao, Pan, Liang, Qiannan, Peng, Hong, Zhao, Hongbo, Qin, Wenqing, Qiu, Guanzhou and Wang, Jun (2017) The activation mechanism of Bi3+ ions to rutile flotation in a strong acidic environment. Minerals, 7 7: . doi:10.3390/min7070113


Author Xiao, Wei
Cao, Pan
Liang, Qiannan
Peng, Hong
Zhao, Hongbo
Qin, Wenqing
Qiu, Guanzhou
Wang, Jun
Title The activation mechanism of Bi3+ ions to rutile flotation in a strong acidic environment
Formatted title
The activation mechanism of Bi3+ ions to rutile flotation in a strong acidic environment
Journal name Minerals   Check publisher's open access policy
ISSN 2075-163X
Publication date 2017-07-02
Sub-type Article (original research)
DOI 10.3390/min7070113
Open Access Status DOI
Volume 7
Issue 7
Total pages 13
Place of publication Basel, Switzerland
Publisher M D P I AG
Language eng
Subject 1909 Geotechnical Engineering and Engineering Geology
1907 Geology
Abstract Lead hydroxyl compounds are known as rutile flotation of the traditional activated component, but the optimum pH range for flotation is 2–3 using styryl phosphoric acid (SPA) as collector, without lead hydroxyl compounds in slurry solution. In this study, Bi ions as a novel activator was investigated. The results revealed that the presence of Bi ions increased the surface potential, due to the specific adsorption of hydroxyl compounds, which greatly increases the adsorption capacity of SPA on the rutile surface. Bi ions increased the activation sites through the form of hydroxyl species adsorbing on the rutile surface and occupying the steric position of the original Ca ions. The proton substitution reaction occurred between the hydroxyl species of Bi ions (Bi(OH) ) and the hydroxylated rutile surface, producing the compounds of Ti-O-Bi. The micro-flotation tests results suggested that Bi ions could improve the flotation recovery of rutile from 61% to 90%, and from 61% to 64% for Pb ions.
Keyword Activation sites
Hydroxyl compound
Rutile activation flotation
Strong acidic environment
Styryl phosphoric acid
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID 2013M531813
51474254
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
HERDC Pre-Audit
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 2 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 3 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Mon, 04 Sep 2017, 01:00:49 EST by Web Cron on behalf of Learning and Research Services (UQ Library)