Study on Volatizing Tin from Tin-Bearing Middling by Carbothermic Reduction in Rotary Kiln

2019 ◽  
pp. 211-219
Author(s):  
Jianfa Jing ◽  
Yufeng Guo ◽  
Feng Chen ◽  
Fuqiang Zheng ◽  
Lingzhi Yang
Keyword(s):  
Rotary Kiln ◽  
Carbothermic Reduction

Effects of Furnace Slope and Rotational Speed on the Carbothermic Reduction of Celestite in a Laboratory-Scale Rotary Kiln Furnace

2020 ◽  
Vol 37 (4) ◽  
pp. 1273-1278
Author(s):  
Raşit Sezer ◽  
Ayşegül Bilen ◽  
Göksel Hızlı ◽  
Selim Ertürk ◽  
Cüneyt Arslan
Keyword(s):  
Rotary Kiln ◽  
Rotational Speed ◽  
Carbothermic Reduction ◽  
Laboratory Scale

A solar heated rotary kiln for the detoxification of hazardous wastes

1999 ◽  
Vol 09 (PR3) ◽  
pp. Pr3-307-Pr3-312 ◽  
Author(s):  
B. Pohlmann ◽  
K.-H. Funken ◽  
R. Dominik
Keyword(s):  
Rotary Kiln ◽  
Hazardous Wastes

Analytical Determination of Torch Characteristics of Rotary Kiln Burners

2020 ◽  
Vol 50 (5) ◽  
pp. 347-350
Author(s):  
G. M. Druzhinin ◽  
N. B. Loshkarev ◽  
E. D. Solntseva ◽  
I. M. Khammatov
Keyword(s):  
Rotary Kiln ◽  
Analytical Determination

Thermodynamic and Experimental Analyses of the Carbothermic Reduction of Tungsten Slag

JOM ◽  
2021 ◽  
Author(s):  
Chunfa Liao ◽  
Sui Xie ◽  
Xu Wang ◽  
Baojun Zhao ◽  
Boqing Cai ◽  
...  
Keyword(s):  
Carbothermic Reduction ◽  
Experimental Analyses

scholarly journals Carbothermic Reduction and Nitridation Mechanism of Vanadium-Bearing Titanomagnetite Concentrate

Minerals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 730
Author(s):  
Wen Yu ◽  
Xiaojin Wen ◽  
Wei Liu ◽  
Jiangan Chen
Keyword(s):  
Phase Transformation ◽  
Carbothermic Reduction ◽  
Titanium Oxides ◽  
Distribution Characteristic ◽  
Reaction Behavior ◽  
Microstructure Transformation ◽  
Rate Limiting Step ◽  
Limiting Step ◽  
Roasting Process ◽  
Rate Limiting

In this study, the carbothermic reduction and nitridation mechanism of vanadium-bearing titanomagnetite concentrate are investigated in terms of phase transformation, microstructure transformation, and thermodynamic analyses. The differences in the reaction behavior of titanomagnetite and ilmenite in vanadium-bearing titanomagnetite concentrate, as well as the distribution characteristic of V in the roasted products, are emphatically studied. It is observed that the reaction sequences of titanomagnetite and ilmenite transformations into nitride are as follows: Fe3−xTixO4→Fe2TiO4→FeTiO3→M3O5→(Ti, V)(N, C); FeTiO3→M3O5→Ti(N, C). The reduction of M3O5 to TiN is the rate-limiting step of the entire reaction, and metal iron is an important medium for transferring C for the reduction of M3O5. Titanomagnetite is faster to convert into nitride than ilmenite is, and the reasons for this are discussed in detail. During the entire roasting process, V mainly coexists with Ti and seems to facilitate the conversion of titanium oxides into (Ti, V)(N, C).

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