Smithsonite flotation using potassium amyl xanthate and hexylmercaptan

Hosseini, Seyed Hossein; Forssberg, Eric

doi:10.1179/174328506x109077

Cited by 36 publications

(16 citation statements)

References 10 publications

(15 reference statements)

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“…According to these findings, the flotation of zinc oxide using amines and P80 was carried out at temperatures as low as 8 °C, and this flotation temperature was much lower than those previously reported (Keqing et al, 2005;Hosseini and Forssberg, 2006;Ejtemaei et al, 2010;Majid et al, 2014).…”

Section: Effect Of Temperaturementioning

confidence: 84%

Influence of polysorbate 80 on flotation of zinc oxide ores with amine collector

Xie¹,

Wang²,

Zhi³

et al. 2021

Physicochem. Probl. Miner. Process.

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In this study, the influence of polysorbate 80 on zinc oxide flotation was investigated with an amine collector. The results indicated that the pretreatment of amines with polysorbate 80 enhanced the Zn grade and recovery obtained using zinc oxide flotation. Desliming prior to flotation is not suggested based on the results of this study. The appropriate temperature for flotation was as low as 8 °C, and this flotation method also could be applied to different types of zinc oxide ores. Under optimum flotation conditions, a concentrate with a Zn grade of 48.34% and a Zn recovery of 95.97% was obtained.

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Section: Effect Of Temperaturementioning

confidence: 84%

Influence of polysorbate 80 on flotation of zinc oxide ores with amine collector

Xie¹,

Wang²,

Zhi³

et al. 2021

Physicochem. Probl. Miner. Process.

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“…The optimum microflotation recovery amounts to 78% with a contact angle of 92u at an HM concentration of 1?1610 22 M. Figure 3 shows the spectra of oxide zinc mineral in different HM concentrations at pH 9. 12 Clearly in all obtained spectra, the S-H stretching bands (2530 cm 21 ) are missing. However, the band due to the S-H stretching vibration can be weak and even may be missing in dilute solution.…”

Section: Microflotation and Contact Angle Measurementsmentioning

confidence: 96%

Studies on selective flotation of smithsonite from silicate minerals using mercaptans and one stage desliming

Hosseini

Forssberg

2011

Mineral Processing and Extractive Metallurgy

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The separation of oxide zinc mineral from silicate minerals in smithsonite mineral, associated silicate minerals and oxide zinc ore samples was assessed using methyl mercaptan (CH 3 SH), ethyl mercaptan (C 2 H 5 SH) and hexyl mercaptan (C 6 H 13 SH; HM) as collectors. The optimal flotation conditions were defined through Hallimond tube, contact angle and batch flotation and the results were applied to a natural Angooran oxide zinc ore. The microflotation and artificial mixture flotation results showed a maximum of 78% flotation recovery using HM. Selective flotation of oxide zinc ore was also accomplished by using an HM collector at pH 9. The flotation recovery was 55% without desliming. When the initial feed was deslimed before bench scale flotation tests, the recovery increased from 55 to 75% with 22?5% zinc content in the concentrate. When methyl mercaptan or ethyl mercaptan was used, lower zinc recoveries and grades compared to HM flotation were achieved.

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“…However, industrial practice has shown that most xanthates are not fit for recovering zinc oxide minerals despite their sulfidization. The short carbon chain length of most commercially used xanthates (carbon atomic numbers of 2–5) may account for their poor collectivity [ 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Zinc Recovery from Wulagen Sulfide Flotation Plant Tail by Applying Ether Amine Organic Collectors

Wang

et al. 2021

Molecules

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Separating oxidized zinc minerals from flotation tailings is always a challenge. In this study, a flotation tailing from Wulagen zinc mine in China (Zn grade < 1%) was processed using froth flotation with combinations of amines (OPA 10, OPA 1214, OPA 13, DDA) and Na2S to study the effects of these amines on the zinc recovery as well as their interactions with other reagents, aiming to screen out a proper reagent scheme to improve zinc separation from extremely low-grade zinc flotation tailings. The results show that different amines led to different flotation performance, and the collectors were ranked as OPA 1214, OPA 13, OPA 10 and DDA in a decreasing order based on flotation collectivity and selectivity. An increase in the concentration of each collector increased the zinc recovery but reduced the concentrate zinc grade. Interactions were also observed between different amines and Na2S and Na2SiO3, and OPA 1214 outdid the others in saving the usage of both the Na2S and Na2SiO3. The measured adsorption of collector onto smithsonite was found to correlate well with flotation test results. It was concluded that hydrocarbon chains can be held accountable for the difference in the flotation performance with different amines. The longer the hydrocarbon chain, the stronger the hydrophobic association ability of amine, which is conducive to the selective amine adsorption onto sulfurized smithsonite particles and hence the smithsonite flotation.

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Smithsonite flotation using potassium amyl xanthate and hexylmercaptan

Cited by 36 publications

References 10 publications

Influence of polysorbate 80 on flotation of zinc oxide ores with amine collector

Influence of polysorbate 80 on flotation of zinc oxide ores with amine collector

Studies on selective flotation of smithsonite from silicate minerals using mercaptans and one stage desliming

Zinc Recovery from Wulagen Sulfide Flotation Plant Tail by Applying Ether Amine Organic Collectors

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