Showing 5 results for M. H. Abbasi
G. Aryanpour, M. H. Abbasi,
Volume 11, Issue 1 (10-1992)
Abstract
G. Aryanpour, M. H. Abbasi,
Volume 14, Issue 1 (1-1994)
Abstract
M. H. Abbasi and M. Safarnoorallah,
Volume 17, Issue 1 (7-1998)
Abstract
Fuel oil used in power plants contain metal impurities like Vanadium. After combustion, this metal remains in boiler fuel ash in the form of oxide. In this research, extraction of Vanadium oxide from fuel ash has been investigated. Two processes were used for this purpose. A pyro- hydrometallurgy and a hydrometallurgy process. In the pyro-hydrometallurgy process, using sodium carbonate, salt roasting of the ash followed by water leaching was carried out. Vanadium was then precipitated as ammonium vanadates which on heating decomposed and vanadium pentoxide (V2O5) was obtained. In the hydrometallurgy process, the ash was dissolved in sodium hydroxide. Vanadium oxide was then recovered from solution. Effects of various parameters in each case were investigated and the optimum condition for maximum recovery was determined.
A, Saidi, M. H. Abbasi and J. Safarian,
Volume 19, Issue 1 (7-2000)
Abstract
Sponge iron (DRI) due to the high surface area, often shows a high tendency to re-oxidation and at some cases spontaneous combustion (autoignition). In this work, re-oxidation behavior and autoignition of sponge iron, produced from different types of iron ore has been investigated. Isothermal and non-isothermal re-oxidation experiments were carried out on each type of DRI and their autoignition temperature was determined. Microscopic examination and porosimetric measurements also were used to elucidate the relationship between the DRI specification and its re-oxidation behavior. The type and chemical analysis of the iron ore, used for the production of DRI, had a strong influence on the microstructure of sponge iron and, in turn, on its sensitivity to re-oxidation and autoignition.
T. Mousavi, M. H. Abbasi, F. Karimzadeh, and M. H. Enayati,
Volume 26, Issue 2 (1-2008)
Abstract
