Investigation on the effect of Zn on the behaviour of S in the iron bath smelting reduction process

1993 ◽  
Vol 64 (1) ◽  
pp. 39-44
Author(s):  
Hong-jie Li ◽  
Masanori Tokuda
Keyword(s):  
Reduction Process ◽  
Smelting Reduction ◽  
Bath Smelting ◽  
Iron Bath

scholarly journals Interaction mechanism between refractory and melts in iron bath smelting reduction process

2010 ◽  
Vol 46 (2) ◽  
pp. 131-140
Author(s):  
G.B. Qiu ◽  
Y. Xu
Keyword(s):  
Corrosion Rate ◽  
Molten Slag ◽  
Interaction Mechanism ◽  
Reduction Process ◽  
Immersion Test ◽  
Corrosion Mechanism ◽  
Smelting Reduction ◽  
Zirconia Refractory ◽  
Bath Smelting ◽  
Iron Bath

The corrosion behavior of three sorts of refractories based on alumina-graphite were studied by immersion tests. The melts included smelting reduction molten slag and corresponding carbon saturated molten iron. The influence of test temperature, FeO content in slag and specimen rotative velocity on the corrosion rate of refractories was examined. By means of SEM and EDS, the microstructure change of the refractories after immersion test in kinds of melts was studied. The morphology of the deteriorated layer showed the corrosion extent of refractories. With the addition of zirconia and titania into the refractories, the corrosion rate changed to some extent. The corrosion rate of three sorts of refractories increased dramatically with the increasing FeO content in smelting reduction slag. Compared with alumina-graphite refractory and alumina-graphite-zirconia refractory, alumina-graphite-titania refractory had stronger corrosion resistance in the smelting reduction conditions. By the results of SEM and EDS, the corrosion mechanism of refractories was developed.

Experimental Investigation on Reduction Kinetics of Stainless Steel-Making Slag in Iron Bath Smelting Reduction

2013 ◽  
Vol 721 ◽  
pp. 164-168
Author(s):  
Bo Zhang ◽  
Shuai Niu ◽  
Wen Bin Chen ◽  
Wen Cai Li ◽  
Fa Tao Chen ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Reaction Rate ◽  
Steel Slag ◽  
Interface Reaction ◽  
Reduction Kinetics ◽  
Smelting Reduction ◽  
Stainless Steel Slag ◽  
Bath Smelting ◽  
Iron Bath ◽  
Kinetics Of

Reduction kinetics of stainless steel slag in iron bath smelting reduction was studied at the temperature of 1500°C ~ 1650°C. It was concluded that the reduction process consisted of two parts. That is to say smelting reduction was controlled by stainless steel slag melting initially and by interface reaction later. In order to increase smelting reaction rate, the melting point of slag should be decreased at the first stage and adjust the liquidity of slag at later stage. Smelting reaction rate will be accelerated by means of optimize the slag content. The optimal reduction result that all most all of the chromium in slag been recovered was obtained in temperature was 1500°C, basicity of slag was 1.0~1.2, the value of Al2O3+MgO was 25%.

Heat transfer in an iron bath of a two-stage smelting reduction process

1993 ◽  
Vol 64 (8-9) ◽  
pp. 372-376 ◽  
Author(s):  
Heinrich Wilhelm Gudenau ◽  
Tianjun Yang ◽  
Thomas Germershausen ◽  
Heinz Rosenbaum ◽  
Keng Wu
Keyword(s):  
Heat Transfer ◽  
Reduction Process ◽  
Smelting Reduction ◽  
Two Stage ◽  
Iron Bath

Cr and Ni Recovery and Oxidational Dephosphorization of Stainless Steel Dust during the Iron-Bath Smelting Reduction Process

2014 ◽  
Vol 933 ◽  
pp. 32-37
Author(s):  
Shuai Niu ◽  
Yong Ren ◽  
Hua Zhang ◽  
Hui Long Fu ◽  
Xin Hong
Keyword(s):  
Stainless Steel ◽  
Phosphorus Content ◽  
Reduction Process ◽  
Hot Metal ◽  
Smelting Reduction ◽  
Yield Rate ◽  
Steel Dust ◽  
Iron Bath ◽  
The Cost ◽  
Dephosphorization Rate

According to the comprehensive utilization of 300 series and 400 series stainless steel dust (SSD), and the dephosphorization of the reclaimed Cr-Ni contained hot metal, an experimental method of smelting reduction in iron-bath and oxidational dephosphorization was studied. The result shows: The yield rate of Cr in 300SSDand 400SSDis 98.13% and 98.39% respectively, the yield rate of Ni is almost 100%; During the dephosphorization, through the BaO and CaO-BaO based dephosphorizer has a higher Dephosphorization rate, it can bring pollution problems and the cost is too high, however, under some circumstance when the requirement of phosphorus content is not critical, the CaO based dephosphorizer can also achieved the dephosphorization goal.

Sign in / Sign up

Export Citation Format

Share Document