Effect of Tween 80 on flotation separation of magnesite and dolomite using NaOL as the collector

Sun, Wenhan; Wang, Xinyang; Dai, Shujuan; Yang, Ting; Duan, Hao; Liu, Wenbao

doi:10.1016/j.molliq.2020.113712

Cited by 60 publications

(11 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, the prepared infrared window tablets were fixed to the sample holder for scanning test. The scanning range of the instrument was 400 ~ 4000 cm -1 , the minimum resolution was 0.09 cm -1 , and the precision of the wavenumber was 0.01 cm -1 (Sun et al, 2020).…”

Section: Fourier Transform Infrared (Ftir) Spectroscopy Analysismentioning

confidence: 99%

Strengthening the rough selection effect of n-ethyl o-isopropyl thionocarbamate (Dow: Z-200) on chalcopyrite by ultrasonic pretreatment

Yan¹,

Wang²,

Yu³

et al. 2020

Physicochem. Probl. Miner. Process.

View full text Add to dashboard Cite

In this study, the properties of (CH3)2CHOC(S)NHC2H5(Dow: Z-200) after the ultrasonic pretreatment was characterized by employing surface tension, viscosity, and Fourier transform infrared (FTIR) spectroscopy, and its influence on chalcopyrite rough selecting was investigated. The results indicate that the pretreated Z-200 can improve the index of chalcopyrite roughing. And, under the same reagent system, the recovery of copper reached 82.84% which was an increase of 24.44% compared with the untreated when Z-200 after ultrasonic pretreatment was applied to the rough separation of chalcopyrite. The reason why ultrasonic can strengthen the flotation effect of Z-200 on chalcopyrite is that ultrasonic pretreatment can decrease the surface tension and viscosity of Z-200 and enhance its foaming performance. Meanwhile, the ultrasonic cavitation destroys the molecular structure of Z-200, so that the relative proportion of methyl absorption peak and amine absorption peak in Z-200 increases. This also further improves the collection performance and foaming performance of Z-200 and strengthens its separation effect on chalcopyrite. The research provides a new idea for Z-200 to act on chalcopyrite and improve its flotation efficiency, reduce the amount of flotation reagent, and its pollution to the environment. It also provides a theoretical basis for expanding the application of ultrasonic technology in the field of flotation.

show abstract

Section: Fourier Transform Infrared (Ftir) Spectroscopy Analysismentioning

confidence: 99%

Strengthening the rough selection effect of n-ethyl o-isopropyl thionocarbamate (Dow: Z-200) on chalcopyrite by ultrasonic pretreatment

Yan¹,

Wang²,

Yu³

et al. 2020

Physicochem. Probl. Miner. Process.

View full text Add to dashboard Cite

show abstract

“…The main impurities in magnesite ore were silicon, calcium, and iron. Cationic reverse flotation was usually used to remove silicon from magnesite ore; then, anion flotation was used to remove calcium and some silicon when the content of impurities was high [19]. It is necessary to remove iron during the removal of silicon by cationic reverse flotation.…”

Section: Introductionmentioning

confidence: 99%

The Flotation Separation of Magnesite and Limonite Using an Amine Collector

Han

Dai

et al. 2021

Adsorption Science & Technology

Self Cite

View full text Add to dashboard Cite

In order to reduce the iron impurities in magnesite ore and improve the purity of magnesium products, the difference in floatability between magnesite and limonite has been studied by using mixtures with a collecting agent—KD (cationic amine collectors, containing soluble components). Sodium hexametaphosphate, pH, sodium silicate, and sodium carboxymethyl cellulose were used as regulators. Adsorption mechanisms of the reagents on minerals were analyzed by a zeta potential analyzer and infrared spectroscopy. Sodium silicate increased the floatability of both minerals at 11.6. All the three regulators reduced the zeta potential of both minerals, while KD increased the zeta potential of magnesite and decreased the zeta potential of limonite. All the three regulators were likely chemically adsorbed on the surface of both minerals; KD has electrostatic adsorption on the surface of the minerals.

show abstract

“…Besides, these other collectors, such as an ion-tolerance collector AESNa (Liu et al, 2021), dodecyl phosphate (Chen and Tao, 2004) and DDA (Yao et al, 2016) as well as fatty acid (Matis et al,2016), have also drawn considerable attention for introducing reverse flotation for magnesite. Flotation with mixed collector, including NaOL (Matis and Gallios, 1989;Sun et al, 2020) and bis(2hydroxyethyl)dodecylamine (BHDA) , has not obtained efficient separation as those with the pure minerals. Despite modifiers, including sodium hexametaphosphate (SH), sodium pyrophosphate (Matis et al, 1988;Matis and Gallios, 1989;Sun et al, 2020;Luo et al, 2017), sodium silicate, and calcon (Matis and Gallios, 1989) were introduced, relative to pure mineral flotation, the little floatability distinction still manifested a challenging separation between the two minerals in a lab test.…”

Section: Introductionmentioning

confidence: 99%

“…Flotation with mixed collector, including NaOL (Matis and Gallios, 1989;Sun et al, 2020) and bis(2hydroxyethyl)dodecylamine (BHDA) , has not obtained efficient separation as those with the pure minerals. Despite modifiers, including sodium hexametaphosphate (SH), sodium pyrophosphate (Matis et al, 1988;Matis and Gallios, 1989;Sun et al, 2020;Luo et al, 2017), sodium silicate, and calcon (Matis and Gallios, 1989) were introduced, relative to pure mineral flotation, the little floatability distinction still manifested a challenging separation between the two minerals in a lab test. Additionally, among the mineral mixtures recommended in the literature, the recovery ratio of magnesite is still relatively low.…”

Section: Introductionmentioning

confidence: 99%

Research on the mechanism of a mixed collector onto magnesite surface to improve the flotation separation of magnesite from hornblende

Wang¹,

Li²,

Dai³

et al. 2021

Physicochem. Probl. Miner. Process.

Self Cite

View full text Add to dashboard Cite

Low-grade magnesite is not effectively used mainly due to high silicon content, especially the separation of magnesite and hornblende. In this research, a novel mixture of sodium oleate and dodecyl phosphate collector was used to increase the flotation difference between magnesite and hornblende. Artificially mixed mineral concentrates grade 47.10% (MgO content) concentrate recovery of 84.45% was obtained by micro flotation test, the results showed that the mixed collector of sodium oleate and dodecyl phosphate played a better selective promotion role in the flotation of magnesite. The interaction mechanism of this mixed collector with hornblende and magnesite surfaces was investigated using Fourier transform infrared spectroscopy (FTIR), zeta potential, and X-ray photoelectron spectroscopy (XPS), which showed that the mixed collector in terms of magnesium selection was mainly adsorbed on these magnesium sites of magnesite, and the surface of magnesite thus became hydrophobic, allowing magnesite to float and separate from hornblende.

show abstract

Effect of Tween 80 on flotation separation of magnesite and dolomite using NaOL as the collector

Cited by 60 publications

References 40 publications

Strengthening the rough selection effect of n-ethyl o-isopropyl thionocarbamate (Dow: Z-200) on chalcopyrite by ultrasonic pretreatment

Strengthening the rough selection effect of n-ethyl o-isopropyl thionocarbamate (Dow: Z-200) on chalcopyrite by ultrasonic pretreatment

The Flotation Separation of Magnesite and Limonite Using an Amine Collector

Research on the mechanism of a mixed collector onto magnesite surface to improve the flotation separation of magnesite from hornblende

Contact Info

Product

Resources

About