Synergistic collection mechanism of D-phenylalanine and sodium oleate in flotation of diaspore from kaolinite

Li, Huaxia; Chai, Wencui; Cao, Yijun; Wu, Yankun; Yang, Shichong

doi:10.1016/j.apsusc.2020.147937

Cited by 28 publications

(3 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The noncovalent interactions between surfactants have been employed to obtain a variety of self-assembled structures such as micelles and vesicles [17,18]. It has been reported that there was synergism between oleate and a surfactant such as dodecane and D-phenylalanine through hydrogen bond interactions [19,20]. Ethoxylated alcohols are surfactants composed of elements C, H and O, whose polar head -CH 2 OH is the hydrogen bond donor and acceptor, and can form a hydrogen bond with oleate [21].…”

Section: Introductionmentioning

confidence: 99%

Effects of Hydrogen Bonds between Ethoxylated Alcohols and Sodium Oleate on Collecting Performance in Flotation of Quartz

Zhang,

Li,

Kou

et al. 2023

Molecules

View full text Add to dashboard Cite

Hydrogen bonds play an important role in the interaction between surfactants. In this study, the effect of three different ethoxylated alcohols (OP-10, NP-10, AEO-9) on the collecting behavior of sodium oleate (NaOL) in the flotation of quartz was investigated. To explore the mechanism, the hydrogen bond between ethoxylated alcohols and NaOL was analyzed using molecular dynamics (MD) simulation. The results showed that ethoxylated alcohols promoted the collecting performance of NaOL and reduced the dosage of the activator CaO and the collector NaOL in the flotation of quartz. The Zeta potential measurement illustrated that ethoxylated alcohols promoted the adsorption of OL− on the activated quartz surface and the degree of promotion was in the order of OP-10 > NP-10 > AEO-9. The MD simulation results showed that a hydrogen bond presented between ethoxylated alcohols and OL−. Due to the hydrogen bond between the ethoxylated alcohols and OL−, the attraction force between OL− and the quartz surface increased with the addition of ethoxylated alcohols in the order of OP-10 > NP-10 > AEO-9 based on the MD simulation results. As the result, the addition of ethoxylated alcohols increased the adsorption density of OL− on the activated quartz surface, which explained the promotion of the collecting performance of OL− in the flotation of quartz.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of Hydrogen Bonds between Ethoxylated Alcohols and Sodium Oleate on Collecting Performance in Flotation of Quartz

Zhang,

Li,

Kou

et al. 2023

Molecules

View full text Add to dashboard Cite

show abstract

“…The sodium oleate (NaOL), as a typical and commercial collector for ilmenite flotation [6,8], has the characteristics of strong collecting ability but large dosage. The main optimization approach for ilmenite flotation is NaOL modification or combination with other reagents [9][10][11][12][13][14][15]. However, the route of NaOL modification is long and costly.…”

Section: Introductionmentioning

confidence: 99%

“…However, the route of NaOL modification is long and costly. The mixture of NaOL and D-phenylalanine performed positive synergistic adsorption in diaspore [10]. Xu et al claimed that dodecyl amine-hydrochloride/NaOL has better hydrophobicity and collection performance than a single agent in muscovite flotation [11].…”

Section: Introductionmentioning

confidence: 99%

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

Tian

Cao

et al. 2021

Minerals

Self Cite

View full text Add to dashboard Cite

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 RCONH2 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.

show abstract

Flotation separation of spodumene and albite with activation of calcium ion hydrolysate components

Zhang

Zhou

et al. 2022

Rare Met.

View full text Add to dashboard Cite

Synergistic collection mechanism of D-phenylalanine and sodium oleate in flotation of diaspore from kaolinite

Cited by 28 publications

References 41 publications

Effects of Hydrogen Bonds between Ethoxylated Alcohols and Sodium Oleate on Collecting Performance in Flotation of Quartz

Effects of Hydrogen Bonds between Ethoxylated Alcohols and Sodium Oleate on Collecting Performance in Flotation of Quartz

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

Flotation separation of spodumene and albite with activation of calcium ion hydrolysate components

Contact Info

Product

Resources

About