Effect of Oxidizing and Reducing Conditions on the Reaction of Water with Sulfur Bearing Blast Furnace Slags

Stoehr, R. A.; Pezze, J. P.

doi:10.1080/00022470.1975.10470185

Cited by 7 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(2) is predomi nant reaction in the oxidation of CaS, the sulfur still remains in the slag phase as sulfate and thus the removal of sulfur into gas phase can not be expected in this case. Some researches have been done on the sulfur evolu tion as SO 2 from slag by oxidation [2][3][4]. They are for the prevention of SO 2 emission during the air cooling or water quenching of the blast furnace slag.…”

Section: Introductionmentioning

confidence: 99%

Oxidation of Pure Solid CaS with Ar-O₂ Gas Mixture

Kobayashi

Hiraki

Nagasakaki

2012

High Temperature Materials and Processes

View full text Add to dashboard Cite

Synopsis:Oxidation behavior of CaS in oxidizing atmo sphere has been investigated for the regeneration process of desulfurization slag by oxidation. The temperature range of oxidation of CaS reagent with Ar21%O 2 gas was 973 to 1423 K. The weight gain was observed in the lower temperature range and reached at the maximum value at 1173 K while weight gain turned to decrease when the reac tion temperature was higher than 1173 K. It was clarified that CaS was oxidized to CaSO 4 under 1173 K or to CaO over 1373 K by the measurement of oxidation rate, XRD and thermodynamic analysis. The results strongly suggested that sulfur removal from the sulfur containing slag may be possible at temperatures of 1223 K or higher by the oxida tion of with air.

show abstract

Section: Introductionmentioning

confidence: 99%

Oxidation of Pure Solid CaS with Ar-O₂ Gas Mixture

Kobayashi

Hiraki

Nagasakaki

2012

High Temperature Materials and Processes

View full text Add to dashboard Cite

show abstract

“…The type of cooling process BFS undergoes can control the amount of air emissions from that BFS, and may impact how that ACBFS leaches. Stoehr and Pezze (1975) conducted a bench-scale study using BFS directly from a Pittsburgh steel mill without that material contacting water. The material was allowed to rapidly cool before testing.…”

Section: Bench-and Pilot-scale Leaching Studiesmentioning

confidence: 99%