Comparison of stages in oil agglomeration process of quartz with sodium oleate in the presence of Ca(II) and Mg(II) ions

Özkan, A.; Ucbeyiay, H.; Duzyol, S.

doi:10.1016/j.jcis.2008.09.073

Cited by 40 publications

(13 citation statements)

References 27 publications

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“…4 and help explain the results obtained from zeta-potential experiments (Ozkan et al, 2009). Both Ca(II) and Mg(II) ions existed as free ions throughout the pH range of 2.0-8.0, while oleate ions existed mainly as RCOOH (l) .…”

Section: Zeta-potentialsupporting

confidence: 57%

The effects of Ca(II) and Mg(II) ions on the flotation of spodumene using NaOL

Liu

Zhang

Wang

et al. 2015

Minerals Engineering

101

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Section: Zeta-potentialsupporting

confidence: 57%

The effects of Ca(II) and Mg(II) ions on the flotation of spodumene using NaOL

Liu

Zhang

Wang

et al. 2015

Minerals Engineering

101

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“…Therefore, AR of Chongqing mixed sample were slightly lower than that of other coal samples. AR of Adaro mixed sample was also low, which is thought to be the reason for the interaction between ash and oxygen contents that had hydrophilic properties [12,14].…”

Section: Reasons For Decrease In Ashmentioning

confidence: 99%

“…β is a linear temperature heating rate (β = dT/dt = constant). This is called Coats-Redfern method [12]. In this analysis aggregate was formed with vegetable oils because kerosene will be volatilized during air drying.…”

Section: Tg-dtg Analyses For Determining Combustion Characteristics Omentioning

confidence: 99%

Oil aggregated behavior for coal recovery and combustion characteristics of their aggregates from different grade coals

Wang¹,

Niida²,

Liu³

et al. 2014

Int. J. SDP

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“…AR of Adaro mixed sample is low also, which it is thought to be the reason for the interactions between ash and oxygenic content which have hydrophilic property either [12]. We could visually make sure that the ash content which indicates red was comprised in the 75~150 μm aggregate, and then on the earlier stage of agglomeration, both are attached and it stop growing bulky agglomeration.…”

Section: Reason Of the Decreasing Ash Reductionmentioning

confidence: 99%

Influential factors on the oil agglomeration process for coal recovery from different grade coals

Wang

Niida

Apar

et al. 2012

WIT Transactions on Ecology and the Environment

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Large amounts of waste fine coals are produced, which are difficult to be treated because of high ash content and inorganic sulfuric compounds. In order to make efficient use of waste fine coal, a retrieval technique is necessary for the recovery of coal combustible content from fine waste coals. Nowadays, the floatation process can be used, but it is impractical for developing countries due to high costs, then the oil agglomeration process can deal with these problems. In this study, we investigated the affecting factors of coal cleaning efficiency of oil agglomeration on the element content and chemical structure of three different grade coals because there are many grades of coals around the world. For determination of chemical content in three different grade coals, the help of proximate and ultimate analysis was used, and then for investigation of their chemical structure differences of carbonaceous content, a Fourier transforminfrared spectrometry (FT-IR) was applied. Furthermore, for the oil agglomeration experiments, kerosene and vegetable oil which differ in structure were used as aggregating agents. We used ash free coals or their mixed samples which were conditioned to the ratios of carbonaceous and ash content in order to make it the same contained amounts. From the results of the oil agglomeration experiments, it was concluded that the characteristics of agglomerate and the coal cleaning efficiency of oil agglomeration are not only influenced by the oil types, but also affected by the oxygenic content, aromatic and aliphatic chemical structures in different grade coals. Oxygenic function groups of carbonaceous content in coal samples ,

show abstract

Comparison of stages in oil agglomeration process of quartz with sodium oleate in the presence of Ca(II) and Mg(II) ions

Cited by 40 publications

References 27 publications

The effects of Ca(II) and Mg(II) ions on the flotation of spodumene using NaOL

The effects of Ca(II) and Mg(II) ions on the flotation of spodumene using NaOL

Oil aggregated behavior for coal recovery and combustion characteristics of their aggregates from different grade coals

Influential factors on the oil agglomeration process for coal recovery from different grade coals

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