Application of Waste Engine Oil for Improving Ilmenite Flotation Combined with Sodium Oleate Collector

Collectors commonly have synergetic effects in ores flotation. In this work, a waste engine oil (WEO) was introduced as a collector to an ilmenite flotation system with sodium oleate (NaOL). The results show that the floatability of ilmenite was significantly improved by using WEO and NaOL as a comb...

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Autores principales:	Qingyao Yu, Fuqiang Tian, Yijun Cao, Guixia Fan, Haiqing Hao, Weijun Peng, Guoli Zhou, Peng Li
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ilmenite flotation waste engine oil combined collector adsorption mechanism Mineralogy QE351-399.2
Acceso en línea:	https://doaj.org/article/13fd040fc4a241b99d06543144912f24
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spelling	oai:doaj.org-article:13fd040fc4a241b99d06543144912f242021-11-25T18:26:32ZApplication of Waste Engine Oil for Improving Ilmenite Flotation Combined with Sodium Oleate Collector10.3390/min111112422075-163Xhttps://doaj.org/article/13fd040fc4a241b99d06543144912f242021-11-01T00:00:00Zhttps://www.mdpi.com/2075-163X/11/11/1242https://doaj.org/toc/2075-163XCollectors commonly have synergetic effects in ores flotation. In this work, a waste engine oil (WEO) was introduced as a collector to an ilmenite flotation system with sodium oleate (NaOL). The results show that the floatability of ilmenite was significantly improved by using WEO and NaOL as a combined collector. The recovery of ilmenite was enhanced from 71.26% (only NaOL) to 93.89% (WEO/NaOL combined collector) at the pH of 6.72. The optimum molar ratio of NaOL to WEO was about 2.08 to 1. The WEO and NaOL also have synergetic effects for the collection of ilmenite, because to obtain the ilmenite recovery of 53.96%, the dosage of 45 mg/L NaOL is equal to 38.56 mg/L WEO/NaOL combined collector (30 mg/L NaOL + 8.56 mg/L WEO). In other words, 15 mg/L of NaOL can be replaced by 8.56 mg/L of WEO. It is an effective way to reduce the dosage of the collector and reuse WEO. Therefore, it is a highly valuable and environmentally friendly approach for WEO reuse. WEO mainly consists of oxygen functional groups, aromatics, and long-chain hydrocarbons, especially for the RCONH<sub>2</sub> and RCOOH, thereby forming a strong interaction on the ilmenite surface. The adsorption mechanism of waste engine oil and sodium oleate on the ilmenite surface is mainly contributed by chemical adsorption. Therefore, WEO exhibits superior synergistic power with NaOL as a combined collector. Herein, this work provided an effective collector for ilmenite flotation and a feasible approach for reducing NaOL dosage and recycling WEO.Qingyao YuFuqiang TianYijun CaoGuixia FanHaiqing HaoWeijun PengGuoli ZhouPeng LiMDPI AGarticleilmeniteflotationwaste engine oilcombined collectoradsorption mechanismMineralogyQE351-399.2ENMinerals, Vol 11, Iss 1242, p 1242 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ilmenite flotation waste engine oil combined collector adsorption mechanism Mineralogy QE351-399.2
spellingShingle	ilmenite flotation waste engine oil combined collector adsorption mechanism Mineralogy QE351-399.2 Qingyao Yu Fuqiang Tian Yijun Cao Guixia Fan Haiqing Hao Weijun Peng Guoli Zhou Peng Li Application of Waste Engine Oil for Improving Ilmenite Flotation Combined with Sodium Oleate Collector
description	Collectors commonly have synergetic effects in ores flotation. In this work, a waste engine oil (WEO) was introduced as a collector to an ilmenite flotation system with sodium oleate (NaOL). The results show that the floatability of ilmenite was significantly improved by using WEO and NaOL as a combined collector. The recovery of ilmenite was enhanced from 71.26% (only NaOL) to 93.89% (WEO/NaOL combined collector) at the pH of 6.72. The optimum molar ratio of NaOL to WEO was about 2.08 to 1. The WEO and NaOL also have synergetic effects for the collection of ilmenite, because to obtain the ilmenite recovery of 53.96%, the dosage of 45 mg/L NaOL is equal to 38.56 mg/L WEO/NaOL combined collector (30 mg/L NaOL + 8.56 mg/L WEO). In other words, 15 mg/L of NaOL can be replaced by 8.56 mg/L of WEO. It is an effective way to reduce the dosage of the collector and reuse WEO. Therefore, it is a highly valuable and environmentally friendly approach for WEO reuse. WEO mainly consists of oxygen functional groups, aromatics, and long-chain hydrocarbons, especially for the RCONH<sub>2</sub> and RCOOH, thereby forming a strong interaction on the ilmenite surface. The adsorption mechanism of waste engine oil and sodium oleate on the ilmenite surface is mainly contributed by chemical adsorption. Therefore, WEO exhibits superior synergistic power with NaOL as a combined collector. Herein, this work provided an effective collector for ilmenite flotation and a feasible approach for reducing NaOL dosage and recycling WEO.
format	article
author	Qingyao Yu Fuqiang Tian Yijun Cao Guixia Fan Haiqing Hao Weijun Peng Guoli Zhou Peng Li
author_facet	Qingyao Yu Fuqiang Tian Yijun Cao Guixia Fan Haiqing Hao Weijun Peng Guoli Zhou Peng Li
author_sort	Qingyao Yu
title	Application of Waste Engine Oil for Improving Ilmenite Flotation Combined with Sodium Oleate Collector
title_short	Application of Waste Engine Oil for Improving Ilmenite Flotation Combined with Sodium Oleate Collector
title_full	Application of Waste Engine Oil for Improving Ilmenite Flotation Combined with Sodium Oleate Collector
title_fullStr	Application of Waste Engine Oil for Improving Ilmenite Flotation Combined with Sodium Oleate Collector
title_full_unstemmed	Application of Waste Engine Oil for Improving Ilmenite Flotation Combined with Sodium Oleate Collector
title_sort	application of waste engine oil for improving ilmenite flotation combined with sodium oleate collector
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/13fd040fc4a241b99d06543144912f24
work_keys_str_mv	AT qingyaoyu applicationofwasteengineoilforimprovingilmeniteflotationcombinedwithsodiumoleatecollector AT fuqiangtian applicationofwasteengineoilforimprovingilmeniteflotationcombinedwithsodiumoleatecollector AT yijuncao applicationofwasteengineoilforimprovingilmeniteflotationcombinedwithsodiumoleatecollector AT guixiafan applicationofwasteengineoilforimprovingilmeniteflotationcombinedwithsodiumoleatecollector AT haiqinghao applicationofwasteengineoilforimprovingilmeniteflotationcombinedwithsodiumoleatecollector AT weijunpeng applicationofwasteengineoilforimprovingilmeniteflotationcombinedwithsodiumoleatecollector AT guolizhou applicationofwasteengineoilforimprovingilmeniteflotationcombinedwithsodiumoleatecollector AT pengli applicationofwasteengineoilforimprovingilmeniteflotationcombinedwithsodiumoleatecollector
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Application of Waste Engine Oil for Improving Ilmenite Flotation Combined with Sodium Oleate Collector

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