scholarly journals The Chalking Mechanism of High-Basicity Sinter in Low-Temperature Reduction Process

2015 ◽  
Vol 02 (02) ◽  
pp. 64-69
Author(s):  
良志 胡
Keyword(s):  
Low Temperature ◽  
Reduction Process ◽  
Temperature Reduction ◽  
High Basicity ◽  
Low Temperature Reduction

scholarly journals Influence of MgO on Low Temperature Reduction and Mineralogical Changes of Sinter in Simulated COREX Shaft Furnace Reducing Conditions

Minerals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 272 ◽  
Author(s):  
Deqing Zhu ◽  
Jianlei Chou ◽  
Benjing Shi ◽  
Jian Pan
Keyword(s):  
Low Temperature ◽  
Shaft Furnace ◽  
Reduction Rate ◽  
Reduction Process ◽  
Smelting Reduction ◽  
Temperature Reduction ◽  
Corex Shaft Furnace ◽  
Reducing Conditions ◽  
Before And After ◽  
Low Temperature Reduction

COREX (Coal-Reduction-Extreme) smelting reduction process provides a sustainable developing way for ironmaking industry, but the sources of iron ore materials restrict its development in China. Meanwhile, the application of sinter, which is marked by low manufacture cost and overcapacity in China, to COREX furnace faced proportion limitation due to its worse low temperature reduction degradation performance. This work explored the influence of MgO content on the low-temperature (550 °C) reduction of sinter in reducing conditions simulating COREX shaft furnace. The mineralogical change of sinter containing different content of MgO before and after reduction was analyzed by X-ray diffraction (XRD), optical microscopy, and scanning electron microscopy for revealing the action mechanism of MgO on the low-temperature-reduction of sinter. The results show that increasing MgO (1.36–3.10%) improved the low temperature reduction degradation performance of sinter, and decreased its reduction degree and reduction rate at low temperature. More MgO the sinter contained, less Fe2O3 and SFCA was observed in sinter. Meantime, less Fe2O3 was reduced and the generation of innerstress was restrained during reduction process. The improved RDI (reduction degradation index) in COREX process of sinter by increasing MgO content is a comprehensive result of lowering strength and inhibiting probable reduction of sinter.

Ultralow-temperature synthesis of small Ag-doped carbon nitride for nitrogen photofixation

2020 ◽  
Vol 10 (22) ◽  
pp. 7652-7660
Author(s):  
Yingzhi Wang ◽  
Rui Zhao ◽  
Fan Wang ◽  
Yong Liu ◽  
Xiaohu Yu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Carbon Nitride ◽  
Deposition Method ◽  
Temperature Synthesis ◽  
Temperature Reduction ◽  
Ultralow Temperature ◽  
Low Temperature Reduction

A low-temperature-reduction–deposition method is used to prepare homogeneously dispersed Ag0/g-C3N4 for efficient N2 photofixation.

Low-Temperature Reduction of Magnetite Ore

1936 ◽  
Vol 28 (1) ◽  
pp. 130-133 ◽  
Author(s):  
G. C. Williams ◽  
R. A. Ragatz
Keyword(s):  
Low Temperature ◽  
Magnetite Ore ◽  
Temperature Reduction ◽  
Low Temperature Reduction

Facile Preparation of Ni2 P with a Sulfur-Containing Surface Layer by Low-Temperature Reduction of Ni2 P2 S6

2016 ◽  
Vol 128 (12) ◽  
pp. 4098-4102 ◽  
Author(s):  
Song Tian ◽  
Xiang Li ◽  
Anjie Wang ◽  
Roel Prins ◽  
Yongying Chen ◽  
...  
Keyword(s):  
Surface Layer ◽  
Low Temperature ◽  
Temperature Reduction ◽  
Facile Preparation ◽  
Sulfur Containing ◽  
Low Temperature Reduction

Manganese oxide nanostructures: low-temperature selective synthesis and thermal conversion

RSC Advances ◽  
2015 ◽  
Vol 5 (32) ◽  
pp. 25250-25257 ◽  
Author(s):  
Leilei Lan ◽  
Guangrui Gu ◽  
Quanjun Li ◽  
Huafang Zhang ◽  
Ke Xu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Manganese Oxide ◽  
Thermal Conversion ◽  
High Yield ◽  
Selective Synthesis ◽  
Temperature Reduction ◽  
Oxide Nanostructures ◽  
Low Temperature Reduction

γ-MnOOH nanorods, δ-MnO2 nanosheets, α-Mn2O3 nanocubes, and Mn3O4 nanoparticles were selectively prepared via a facile, high-yield and low-temperature reduction route.

scholarly journals Mineralogical Study on Degradation of Sinter Structure at Low Temperature Reduction

1984 ◽  
Vol 70 (6) ◽  
pp. 512-519 ◽  
Author(s):  
Noboru SAKAMOTO ◽  
Hiroshi FUKUYO ◽  
Yoshihito IWATA ◽  
Tsuneo MIYASHITA
Keyword(s):  
Low Temperature ◽  
Temperature Reduction ◽  
Mineralogical Study ◽  
Low Temperature Reduction
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