Diffusion behaviors and mechanism of copper-containing sulfide in fayalite-type slag: A key step of achieving copper slag depletion

2022 ◽  
pp. 128264
Author(s):  
Zhongbing Wang ◽  
Wenbin Xu ◽  
Yingpeng Li ◽  
Zongwen Zhao ◽  
Fanghui Jie ◽  
...  
Keyword(s):  
Copper Slag ◽  
Diffusion Behaviors

Effect of Copper Slag as a Fine Aggregate on the Durability Characteristics of High-Performance Concrete (HPC) Containing Silica Fume

2020 ◽  
Vol 07 (02) ◽  
pp. 1-10
Author(s):  
Rizwan Ahmad Khan ◽  
Keyword(s):  
Silica Fume ◽  
High Performance ◽  
High Performance Concrete ◽  
Copper Slag ◽  
Chloride Penetration ◽  
Interfacial Transition Zone ◽  
Fine Aggregate ◽  
Fresh Properties ◽  
Fine Aggregates ◽  
Effect Of Copper

This paper investigates the fresh and durability properties of the high-performance concrete by replacing cement with 15% Silica fume and simultaneously replacing fine aggregates with 25%, 50%, 75% and 100% copper slag at w/b ratio of 0.23. Five mixes were analysed and compared with the standard concrete mix. Fresh properties show an increase in the slump with the increase in the quantity of copper slag to the mix. Sorptivity, chloride penetration, UPV and carbonation results were very encouraging at 50% copper slag replacement levels. Microstructure analysis of these mixes shows the emergence of C-S-H gel for nearly all mixes indicating densification of the interfacial transition zone of the concrete.

Utilization of Industrial Waste Copper Slag and Fly Ash in Concrete

2014 ◽  
Vol 3 (3) ◽  
pp. 25-33
Author(s):  
Jagmeet Singh ◽  
◽  
Jaspal Singh ◽  
Manpreet Kaur ◽  
◽  
...  
Keyword(s):  
Fly Ash ◽  
Industrial Waste ◽  
Copper Slag

Deep reduction recovery of iron from copper slag

2018 ◽  
Vol 28 (4) ◽  
pp. 539-549
Author(s):  
Wei, C. WANG, Zekun HUO, Pengfei YE, Xiuqing MENG WANG ◽  
Kaifan ZHANG ◽  
Xiaoli ZHOU ◽  
C WANG ◽  
Zekun HUO ◽  
...  
Keyword(s):  
Copper Slag

Influence Of Grinding Time On The Bioleaching Of Copper From Copper Slag

2019 ◽  
Vol 12 (2) ◽  
pp. 512-522
Author(s):  
Neha Nagar ◽  
Himanshi Garg ◽  
Himanshi Sharma ◽  
Shivakumar Irappa Angadi ◽  
Chandra Sekhar Gahan
Keyword(s):  
Copper Slag ◽  
Grinding Time

P‐9: Understanding Diffusion Behaviors of Light Elements in OLEDs

2021 ◽  
Vol 52 (1) ◽  
pp. 1088-1090
Author(s):  
Jae Bum HAN ◽  
Young-Gil Park ◽  
Soo Im Jeong ◽  
Nari Ahn
Keyword(s):  
Light Elements ◽  
Diffusion Behaviors

scholarly journals SiO2 Promoted CaO Diffusion to C Phase at 1500 and 1700 °C

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 587
Author(s):  
Lijuan Ni ◽  
Renxing Wang ◽  
Qingya Liu ◽  
Junfei Wu ◽  
Yue Pan ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Close Contact ◽  
Chemical Changes ◽  
Physical And Chemical ◽  
Diffusion Behaviors

To better understand the mass transfer behaviors in CaC2 production from CaO and coke, this paper studies the diffusion behaviors of CaO and graphite, with or without ash, at 1500 and 1700 °C. CaO and graphite are pressed into tablets and heated alone or in close contact. Physical and chemical changes in these tablets are analyzed by XRD and SEM+EDX. In some experiments, thin Mo wires are placed between the closely contacted CaO and graphite tablets to identify the diffusion direction. It is found that the diffusion between CaO and low-ash graphite is very limited. SiO2 in a high-ash graphite diffuses into CaO tablet and reacts with CaO to form Ca2SiO4, which then diffuses into the graphite tablet easily and leads to CaC2 formation at 1700 °C.

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