scholarly journals Mixing and mass transfer in ladle refining process.

1989 ◽  
Vol 29 (2) ◽  
pp. 148-153 ◽  
Author(s):  
Kanehiro Ogawa ◽  
Toshio Onoue
Keyword(s):  
Mass Transfer ◽  
Refining Process ◽  
Ladle Refining

Effect of B2O3 and CaF2 on Viscosity of Ladle Refining Slag

2011 ◽  
Vol 295-297 ◽  
pp. 2647-2650 ◽  
Author(s):  
Hong Ming Wang ◽  
Ting Wang Zhang ◽  
Hua Zhu ◽  
Yong Qi Yan ◽  
Yi Nan Zhao
Keyword(s):  
Refining Process ◽  
Slag Viscosity ◽  
Mass Ratio ◽  
Refining Slag ◽  
Ladle Refining ◽  
Ladle Slag ◽  
Viscosity Measurements ◽  
Cylinder Method

To avoid slag sticking onto the snorkel during CAS-OB ladle refining process, B2O3-CaO(mass ratio equals 1:1) and CaF2-CaO(mass ratio equals 1:1) were respectively employed as modifiers added to decrease the viscosity of ladle slag. The rotary cylinder method was adopted in the viscosity measurements. The results showed that the modifiers could decrease the viscosity of ladle refining slag remarkably. At 1500°C, the viscosity of ladle slag without any modifiers is about 6.0 Pa·s. But by adding more than 10mass% CaO-B2O3 or CaO-CaF2, the slag viscosity at 1500°C could be decreased lower than 1.0 Pa·s. The mechanism of modifiers decreasing the slag viscosity was analyzed.

Investigation of tungsten concentrate used for alloying in ladle refining process

1994 ◽  
Vol 65 (3) ◽  
pp. 85-89
Author(s):  
Weiqing Chen ◽  
Rongzhang Zhou ◽  
Wan-Wook Huh ◽  
Chang-Hee Rhee
Keyword(s):  
Refining Process ◽  
Ladle Refining

The Rate of Boron Removal from Molten Silicon by CaO-SiO2 Slag and Cl2 Treatment

2012 ◽  
Vol 31 (4-5) ◽  
pp. 471-477 ◽  
Author(s):  
Hiroshi Nishimoto ◽  
Youngjo Kang ◽  
Takeshi Yoshikawa ◽  
Kazuki Morita
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Molten Slag ◽  
Refining Process ◽  
Molten Silicon ◽  
Solar Grade Silicon ◽  
Boron Removal ◽  
Present Experimental Condition ◽  
Slag Refining ◽  
Grade Silicon

AbstractIn order to optimize a boron removal process by slag refining to obtain solar grade silicon, the rate of boron removal from molten silicon using CaO-SiO2 slag was investigated at 1823 K in an Ar atmosphere. The rate of boron removal was found to be controlled by mass transfer in molten slags, and the mass-transfer coefficient of boron in molten slag in the present experimental condition was evaluated. Some experiments on chlorination of boron in silicon and that of borate in slag using Cl2 gas were also carried out. Experimental results showed that the slag refining process with chlorination was proposed as a promising method for the boron removal from molten silicon.

scholarly journals Spout Eye Area in Ladle Refining Process

2004 ◽  
Vol 44 (3) ◽  
pp. 636-638 ◽  
Author(s):  
Manabu Iguchi ◽  
Ken-ichiro Miyamoto ◽  
Shintaro Yamashita ◽  
Daisuke Iguchi ◽  
Masafumi Zeze
Keyword(s):  
Refining Process ◽  
Ladle Refining

scholarly journals THE ANALYSIS OF MASS TRANSFER IN CONDITIONS OF GAS STIRRING AT LADLE REFINING OF STEEL

2015 ◽  
Vol 58 (9) ◽  
pp. 638 ◽  
Author(s):  
S. P. Burmasov ◽  
A. G. Gudov ◽  
Yu. G. Yaroshenko ◽  
V. V. Meling ◽  
L. E. Dresvyankina
Keyword(s):  
Mass Transfer ◽  
Ladle Refining

Mass transfer in the ladle refining of steel with gas mixing

2015 ◽  
Vol 45 (9) ◽  
pp. 635-639 ◽  
Author(s):  
S. P. Burmasov ◽  
A. G. Gudov ◽  
Yu. G. Yaroshenko ◽  
V. V. Meling ◽  
L. E. Dresvyankina
Keyword(s):  
Mass Transfer ◽  
Gas Mixing ◽  
Ladle Refining
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