The Role of MgO Powder in Preventing Defluidization during Fluidized Bed Reduction of Fine Iron Ores with Different Iron Valences

2016 ◽  
Vol 87 (12) ◽  
pp. 1742-1749 ◽  
Author(s):  
Zhan Du ◽  
Qingshan Zhu ◽  
Yafeng Yang ◽  
Chuanlin Fan ◽  
Feng Pan ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Iron Ores ◽  
Fine Iron

Reduction Behavior and Structural Evolution of Iron Ores in Fluidized Bed Technologies-Part 2: Characterization and Evaluation of Worldwide Traded Fine Iron Ore Brands

2015 ◽  
Vol 87 (5) ◽  
pp. 642-652 ◽  
Author(s):  
Anton Pichler ◽  
Heinrich Mali ◽  
Friedemann Plaul ◽  
Johannes Schenk ◽  
Michael Skorianz ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Iron Ore ◽  
Structural Evolution ◽  
Iron Ores ◽  
Reduction Behavior ◽  
Fine Iron

scholarly journals The role of nitrogen gas in fluidized bed reactors on the nodular iron nitridation processs

2021 ◽  
Vol 1034 (1) ◽  
pp. 012172
Author(s):  
Wayan Sujana ◽  
Komang Astana Widi ◽  
Gerald A. Pohan ◽  
Tutut Nani Prihatmi ◽  
Luh Dina Ekasari
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Reactors ◽  
Nitrogen Gas ◽  
Nodular Iron

Study of the Role of Small Additions of Zr in the CVD- FBR Aluminization Process

2009 ◽  
Vol 289-292 ◽  
pp. 293-300
Author(s):  
L. Sánchez ◽  
F.J. Bolívar ◽  
M.P. Hierro ◽  
F.J. Pérez
Keyword(s):  
Fluidized Bed ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Fluidized Bed Reactor ◽  
Iron Aluminide ◽  
Martensitic Steels ◽  
Aluminide Coatings ◽  
Deposition Parameters ◽  
Zirconium Powder

In this work, iron aluminide coatings were developed by Chemical Vapor Deposition in Fluidized Bed Reactor (CVD-FBR) on ferritic-martensitic steels. Small additions of zirconium powder were introduced in the fluidized bed; as a consequence, the obtained coatings are thicker than that without zirconium additions. When Zr powders are added in the fluidized bed, the deposition atmosphere drastically changes, leading to increase the deposition rate. Thermodynamic calculations were carried out to simulate the modifications in the CVD atmosphere in the Al/Zr deposition system in comparison to the single aluminization. In order to optimize the conditions of the deposition, parameters such as temperature and concentration of zirconium introduced into the bed were evaluated and compared with the results obtained for the single aluminum deposition.

Sign in / Sign up

Export Citation Format

Share Document