Phase equilibria in K2O-containing manganese smelting slags

Zhao, B., Ganguly, S., Jak, E. and Hayes, P. (2007). Phase equilibria in K2O-containing manganese smelting slags. In: Proceedings 11th International Ferro Alloys Congress. Eleventh International Ferroalloys Congress (INFACON XI), New Delhi, India, (358-368). 18-21 February 2007.


Author Zhao, B.
Ganguly, S.
Jak, E.
Hayes, P.
Title of paper Phase equilibria in K2O-containing manganese smelting slags
Conference name Eleventh International Ferroalloys Congress (INFACON XI)
Conference location New Delhi, India
Conference dates 18-21 February 2007
Convener The Indian Ferro Alloy Producers' Association
Proceedings title Proceedings 11th International Ferro Alloys Congress
Place of Publication India
Publisher The Indian Ferro Alloy Producers' Association
Publication Year 2007
Sub-type Fully published paper
Start page 358
End page 368
Total pages 11
Language eng
Formatted Abstract/Summary
Slag samples taken from adjacent to the furnace wall of a submerged arc ferromanganese smelting furnace have been found to contain high concentrations of K2O. To characterize the phase equilibria relevant to these slags experimental studies have been carried out to determine pseudo-ternary sections of the form “MnO”- CaO-(SiO2+Al2O3) with a fixed Al2O3/SiO2 weight ratio of 0.65 and 6.0 wt% K2O for temperatures in the range 1523-1673 K. In the pseudo-ternary section investigated the primary phase fields are found to be mullite, 3Al2O3·2SiO2; corundum, Al2O3; spinel, MnO·Al2O3; manganosite solid solution, (Mn,Ca)O; dicalcium silicate, 2CaO·SiO2; gehlenite 2CaO·Al2O3·SiO2; anorthite CaO·Al2O3·2SiO2; kalsilite KAlSiO4 and leucite KAlSi2O6. It was found that the presence of K2O in the slag decreases liquidus temperature in the anorthite and gehlenite primary phase fields. The manganosite primary phase field is expanded in the direction of increased (Al2O3+SiO2) and the liquidus temperatures in the manganosite primary phase field are increased significantly with the presence of K2O in the slag.
Subjects 091407 Pyrometallurgy
0914 Resources Engineering and Extractive Metallurgy
Keyword Ferromanganese smelting furnace
K2O
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes SESSION 4: MANGANESE FUNDAMENTALS/ DEVELOPMENT HALL 2 - SHAHJEHAN HALL : 10.40 - 11.05 : Tuesday, 20th February 2007

 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Created: Wed, 04 Feb 2009, 10:12:27 EST by Ms Karen Naughton on behalf of Faculty Of Engineering, Architecture & Info Tech