The Influence of Water Vapour on the Fuming Rate in a Ferromanganese System

Gates, Sarel J.; Kornelius, Gerrit; Kero, Ida; Tranell, Gabriella

doi:10.1007/978-3-319-52333-0_7

Cited by 3 publications

(6 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The experimental setup is shown in Fig. 2, and has been used in previous studies by Kero et al [12], Naess et al [13], Gates et al [10], and Ma et al [7]. A standard grade HCFeMn was used with a composition as shown in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…Gates et al [10,11] also studied fuming rates in ferromanganese, with a focus on the effect of water vapor in the bulk gas. The rate of fuming was found to decrease with increased water content in the atmosphere and that fume particles were found in larger clusters rather than fine dust with moist atmospheres.…”

Section: Figmentioning

confidence: 99%

“…7 given the experimental conditions. It also includes data from Ma et al [7] and Gates et al [10] for comparison, and several maximum evaporation fluxes calculated given different assumptions. There is a good correlation between the calculated values and the experimental values up to a certain point, but there is a clear disparity between the highest experimental flux values and the theoretical maximum flux limited by Mn evaporation in vacuo.…”

Section: Size Distributionmentioning

confidence: 99%

“…The calculated line for 1 l/min uses 21% oxygen as the baseline due to instability in the fume generation at the lowest levels of oxygen and flow. Data from Ma et al [7] and Gates et al [10] are shown for comparison, but the difference in temperature, flow rate, and/or metal composition must be considered. The higher fluxes correspond to the higher flow rate and temperature for Ma and Gates, respectively Fig.…”

Section: Size Distributionmentioning

confidence: 99%

See 3 more Smart Citations

Oxidation-Enhanced Evaporation in High-Carbon Ferromanganese

2021

View full text Add to dashboard Cite

Thermal fume formation is a problem in manganese ferroalloy production and the metal production industry at large. A better understanding of the mechanisms of fume formation and the operational parameters affecting the fume formation rate may help in reducing and managing fuming. This paper aims to investigate the effects of oxygen content and gas flow rate on the fuming rate and fume particulate properties for liquid high-carbon ferromanganese. The fuming rates were attained experimentally by measuring the fume flux with respect to oxygen content and gas velocity above the metal melt. The generated fumes were also characterized in terms of particle size and element distribution between fume and melt. The fuming rates were found to steadily increase with increasing oxygen content and flow rate of the gas up to a point where the curve flattens, following theoretical predictions. However, the highest flux values measured were above the theoretical limitations of the evaporation flux in vacuo given the alloy bulk composition. It is hypothesized that the high rate of fuming is caused by an increased manganese activity at the alloy surface due to local decarburization of the alloy in contact with the oxidizing gas. Graphical Abstract

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Figmentioning

confidence: 99%

Section: Size Distributionmentioning

confidence: 99%

Section: Size Distributionmentioning

confidence: 99%

See 2 more Smart Citations

Oxidation-Enhanced Evaporation in High-Carbon Ferromanganese

2021

View full text Add to dashboard Cite

show abstract

“…For SiMn, however, the vapor had no effect at temperatures higher than 1450°C. 131,132 According to scanning electron microscopy (SEM) analysis of workplace aerosols collected from HC FeMn tapping and of SiMn casting, the PM occurs as agglomerates, either chain-like or compact, while samples from the MOR process can be individual particles. 121 Gunst et al 122 described the PM from the MOR and tapping area as ''slag particles.''…”

Section: Airborne Particulate Matter (Pm)mentioning

confidence: 99%

Airborne Emissions from Mn Ferroalloy Production

Kero

Eidem

et al. 2018

JOM

View full text Add to dashboard Cite

Airborne emissions from metal production represent a health, safety, and environmental challenge to which more and more attention is being directed. Industries worldwide, as well as authorities and others, are resolute in their aim of limiting, reducing, and ultimately eliminating these emissions. Many lessons can be learned by sharing information between industrial branches, as many industries face similar challenges. Certain challenges are, however, highly branch specific. For the Mn ferroalloy industry, such examples include the types of dust generated in the primary processes and the management of polycyclic aromatic hydrocarbons (PAHs) and mercury with respect to furnace design and operation. This article covers airborne emissions from manganese ferroalloy production, including greenhouse gases, nitrogen oxides (NO x), sulfurous gases, PAH, airborne particulate matter, and trace elements, including mercury and other heavy metals. The aim is to summarize current knowledge in a state-of-the-art overview intended to introduce fresh industry engineers and academic researchers to the technological aspects relevant to reduction of airborne emissions.

show abstract

Oxidation and Fume Formation from Liquid Silicomanganese Alloys Exposed to Atmospheres Containing Moisture

Moosavi-Khoonsari

Myklebust

et al. 2022

Metall Mater Trans B

View full text Add to dashboard Cite

The Influence of Water Vapour on the Fuming Rate in a Ferromanganese System

Cited by 3 publications

References 3 publications

Oxidation-Enhanced Evaporation in High-Carbon Ferromanganese

Oxidation-Enhanced Evaporation in High-Carbon Ferromanganese

Airborne Emissions from Mn Ferroalloy Production

Oxidation and Fume Formation from Liquid Silicomanganese Alloys Exposed to Atmospheres Containing Moisture

Contact Info

Product

Resources

About