Study on Desulfurization Abilities of Some Commonly Used Desulfurization Agents

Lindstrom, D. J.; Sichen, Du

doi:10.1002/srin.201400031

Cited by 15 publications

(10 citation statements)

References 13 publications

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“…EDS analysis indicated the presence of TiO 2 . The result is very similar to silicon in liquid iron [11,12]. However, vanadium is not accumulated on the surface of CaO.…”

Section: Resultssupporting

confidence: 56%

Effect of Vanadium and Titanium on Desulfurization of CaO Slag in Liquid Iron

Yang

Song

et al. 2019

Metals

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The possibility of vanadium and titanium participating in the CaO desulfurization reaction has been evaluated. The desulfurization products of CaO which were added to liquid iron containing vanadium–titanium in lab conditions were observed. At the early stage of adding CaO, titanium and sulfur ware agglomerated on the surface of CaO particles. The particles were composed of CaO, TiO2, and CaS. However, vanadium oxide was not detected. It was proposed that the titanium rather than the vanadium could react with CaO and sulfur. The desulfurization kinetics experiment showed that the high titanium content in liquid iron reduced desulfurization velocity, while vanadium had little effect on the desulfurization. The reason for this was that the TiO2 which surrounded the CaO particle impeded the mass transfer of sulfur. The vanadium and titanium had a little influence on the final sulfur content of CaO desulfurization. The theoretical discussion of these phenomena was carried out. The controlling reaction of final sulfur content was (CaO) + [S] + [C] = (CaS) + CO(g).

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“…EDS analysis indicated the presence of TiO 2 . The result is very similar to silicon in liquid iron [11,12]. However, vanadium is not accumulated on the surface of CaO.…”

Section: Resultssupporting

confidence: 56%

Effect of Vanadium and Titanium on Desulfurization of CaO Slag in Liquid Iron

Yang

Song

et al. 2019

Metals

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“…These results along with the re‐evaluation of the thermodynamic data reported in the literature leads to an evident conclusion that the use of ZnO to desulfurize hot metal by the formation of ZnS gas is not possible to any extent. The present authors12 have found that ZnO cannot help the slag to increase its desulfurization power. Hence, a conclusion that ZnO cannot be used as desulfurization agent can be drawn.…”

Section: Discussionmentioning

confidence: 52%

“…The first mechanism is that ZnO helps the slag to increase its capacity of capturing sulfur. The second mechanism is the formation of ZnS gaseous species, which is suggested by Kumar et al9–11 A recent study12 has evidently ruled out the first alternative. Hence, the objective of this paper is to perform lab scale hot metal desulfurization experiments using ZnO to study the possibility of desulfurization by the second mechanism, viz.…”

Section: Introductionmentioning

confidence: 93%

Study on the Possibility of Using ZnO for Hot Metal Desulfurization

Lindstrom

Nortier

Glaser

et al. 2012

steel research int.

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The possibility of using ZnO for desulfurization in hot metal has been evaluated. A experimental setup has been designed so that different desulfurizing agents could be added to hot metal for evaluation of their desulfurizing power. Additions of ZnO into the hot metal under various experimental conditions shows no effect on desulfurization. The results are in contradiction to the suggestion found in literature. A thorough examination of the thermodynamic data employed by the previous work has been carried out.

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“…Among commonly used agents, namely,f luidized CaO, CaC 2 , commercial CaO, Mg, MgO, CaO·MgO, and mixtures of com-mercialC aOÀMg, the best resultsa re shown by commercial CaO mixed with 20 mass %M g. [222] Slow growth of CaS on CaC 2 particles led to poorer resultsf or carbide compared with that of Flucal CaO particles( Figure 52). Nevertheless, the activity was estimated by the amount of an additive, andl arger amounts were possible.…”

Section: Usage Of Calcium Carbide In Alloymakingmentioning

confidence: 99%

Calcium‐Based Sustainable Chemical Technologies for Total Carbon Recycling

2019

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Calcium carbide, a stable solid compound composed of two atoms of carbon and one of calcium, has proven its effectiveness in chemical synthesis, due to the safety and convenience of handling the C≡C acetylenic units. The areas of CaC2 application are very diverse, and the development of calcium‐mediated approaches resolves several important challenges. This Review aims to discuss the laboratory chemistry of calcium carbide, and to go beyond its frontiers to organic synthesis, life sciences, materials and construction, carbon dioxide capturing, alloy manufacturing, and agriculture. The recyclability of calcium carbide and the availability of large‐scale industrial production facilities, as well as the future possibility of fossil‐resource‐independent manufacturing, position this compound as a key chemical platform for sustainable development. Easy regeneration and reuse of the carbide highlight calcium‐based sustainable chemical technologies as promising instruments for total carbon recycling.

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Study on Desulfurization Abilities of Some Commonly Used Desulfurization Agents

Cited by 15 publications

References 13 publications

Effect of Vanadium and Titanium on Desulfurization of CaO Slag in Liquid Iron

Effect of Vanadium and Titanium on Desulfurization of CaO Slag in Liquid Iron

Study on the Possibility of Using ZnO for Hot Metal Desulfurization

Calcium‐Based Sustainable Chemical Technologies for Total Carbon Recycling

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