The origin of fine drops in batch gas-agitated liquid—liquid systems

Shahrokhi, H.; Shaw, John M.

doi:10.1016/0009-2509(94)00397-1

Cited by 4 publications

(1 citation statement)

References 10 publications

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“…For the selected slag composition, the flotation coefficient D was positive, thus the iron droplets could seize the gas bubble and float upwards in the slag. Further mechanisms were proposed by Shahrokhi and Shaw 18) who studied the origin of fine droplets in gas-agitated liquid-liquid systems at low temperature by using a microscopic camera. According to their observations, fine droplet production (Ͻ100 mm) could also arise from other two sources: jet droplet erosion during collisions with gas bubbles, and bubble-attached jet droplet rupture at the free surface of the upper liquid caused by feedback force when the bubble bursts.…”

Section: Film Entrainmentmentioning

confidence: 99%

Mechanisms of Iron Entrainment into Slag due to Rising Gas Bubbles.

Han¹,

Holappa²

2003

ISIJ International

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Iron droplets can be entrained into the slag phase when gas bubbles pass through the molten iron/slag interface. The physical phenomena occurring during passage of single bubbles through the interface were investigated by using in-situ X-ray transmission techniques and optical microscopy of the cooled specimens afterwards. Based on the X-ray observations, two mechanisms of entrainment of iron droplets into slag were proposed: large droplets are entrained by jet formation, fine droplets by the rupture of the metal film covering the gas bubble releasing from the iron/slag interface, respectively. The results provide novel erudition of the interaction between the ascending gas bubbles and the slag/iron systems.

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Section: Film Entrainmentmentioning

confidence: 99%