X‐ray fluorescence analysis of samples with elemental sulphur. Effect of sulphur sublimation

Chinchón, J. S.; López-Soler, A.; Traveria, A.; Vaquer, R.

doi:10.1002/xrs.1300170604

Cited by 9 publications

(5 citation statements)

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“…The XRF data of sulfur was in form of SO3 which equaled to S content of 35.36, 12, and 1.172% following the trend of P-Spowder > P-SCS2 > P-Scolloid. The weight percentages (wt.%) were relatively lower than theoretically predicted probably this is due to sulfur sublimation during analysis [25]. From the EDX spectrum randomly scanned on 25 points, the relative sulfur content was found the lowest in P-Scolloid which was only 2.55 wt.% compared to P-Spowder and P-SCS2 that were 20.75 and 25.21 wt.%, respectively.…”

Section: Pellet Characterizationmentioning

confidence: 76%

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Immobilization of Sulfur from Different Precursors on Mini Rice-Husk-Ash Pellet Coated Chitosan Film and the Application for Mercury Vapor Uptake

et al. 2019

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Stabilizing elemental mercury using elemental sulfur has been a laboratory standard method but the studies in gas system are still growing. This study aims to explore the effect of different type immobilized sulfurs toward the mercury vapor uptake in a mini gas reactor. Sulfur powder, sulfur dissolved in carbon disulfide and colloidal sulfur from sodium thiosulfate-hydrochloric acid were immobilized on mini rice-husk-ash pellets that were previously coated with chitosan film. The average thinness of chitosan film was 58 µm covered the each pellet surface with dimension of 3 mm Ø x 4 mm. The trends of the mercury uptake and the rate of absorption were described as follow; Pellet-Scolloid > Pellet-SCS2 > Pellet-Spowder. The mean percentages of mercury uptake after 1 h running at 70oC were 99.36; 89.09 and 75.00 respectively. The reverse trends were observed for the size of S-particle aggregation and the amount of S found on the pellet surface.

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Section: Pellet Characterizationmentioning

confidence: 76%

“…The amount of sulfur on the surface of pellets was characterized by using XRF [25] and by gravimetric methods. The pellets containing sulfur was extracted by using cold CS2 to dissolve the sulfur.…”

Section: Pellet Covered With S From Sulfur Colloid (P-scolloid)mentioning

confidence: 99%

Immobilization of Sulfur from Different Precursors on Mini Rice-Husk-Ash Pellet Coated Chitosan Film and the Application for Mercury Vapor Uptake

et al. 2019

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“…Another problem is oxidation of pyrite sulfur to native sulfur during storage, which is then volatile under the electron beam in a vacuum (Chinchon et al 1988). It is possible that JB2, JG2, and JG3 suffer from this problem based on much lower X-ray intensities than would be expected based on the certificate values for sulfur.…”

Section: Total Sulfur Concentration In Minerals Rocks and Glasses Usmentioning

confidence: 94%

Analytical Methods for Sulfur Determination in Glasses, Rocks, Minerals and Fluid Inclusions

Ripley

Moore

et al. 2011

Reviews in Mineralogy and Geochemistry

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“…In the literature there is a wide variety of instrumental methods suggested for the determination of total sulfur content and sulfur in its various chemical forms [1,2,3,4,5,6,7,8,9,10,11,12,13]. Some of these methods can be used for sulfur speciation.…”

Section: Introductionmentioning

confidence: 99%

Sulfur speciation in hard coal by means of a thermal decomposition method

2001

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A new method for the determination of organic and pyritic sulfur in hard coal is presented. The method is based on controlled thermal decomposition of coal sample in oxygen-free and oxygen atmospheres. The results for sulfur liberated in an argon atmosphere at temperatures up to 773 K were close to organic sulfur contents (Sorg), although owing to the definition of 'organic sulfur' the values were not directly comparable. Sorg contents are calculated from the difference between total sulfur content in coal and contents of this element in the form of sulfides, sulfates and pyrites. Sulfur contents, found in the second stage of analysis, were close to pyritic sulfur contents. The difference between total sulfur content and the sum of sulfur values obtained in stages I and II corresponded to sulfur contents in those samples which were neither decomposed nor oxidized at temperatures up to 1173 K. Although not comparable with such conventional concepts for industrial purposes these data are attractive due to the ease and rapidity of the new method for the control of sulfur streams in industrial processes.

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X‐ray fluorescence analysis of samples with elemental sulphur. Effect of sulphur sublimation

Cited by 9 publications

References 1 publication

Immobilization of Sulfur from Different Precursors on Mini Rice-Husk-Ash Pellet Coated Chitosan Film and the Application for Mercury Vapor Uptake

Immobilization of Sulfur from Different Precursors on Mini Rice-Husk-Ash Pellet Coated Chitosan Film and the Application for Mercury Vapor Uptake

Analytical Methods for Sulfur Determination in Glasses, Rocks, Minerals and Fluid Inclusions

Sulfur speciation in hard coal by means of a thermal decomposition method

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