scholarly journals Advances in Understanding the Alkali-Activated Metallurgical Slag

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Kuisheng Liu ◽  
Zengqi Zhang ◽  
Jianwei Sun
Keyword(s):  
Steel Slag ◽  
Copper Slag ◽  
Metallurgical Slag ◽  
Chemical Components ◽  
Alkali Activator ◽  
Slag Copper ◽  
Metallurgical Slags ◽  
Lead Zinc ◽  
Ferronickel Slag ◽  
Alkali Activated

This paper summarized and reviewed the mechanism and macro-performance of alkali-activated metallurgical slag, including steel slag, copper slag, ferronickel slag, and lead-zinc slag. Better activated method and alkali-activator are still needed to be developed to improve the performance of the metallurgical slag with low reactivity. Besides, the chemical components’ variation of these metallurgical slags from different regions will lead to unpredictable performance, which needs further study.

The influence of steel slag and ferronickel slag on the properties of alkali-activated slag mortar

2019 ◽  
Vol 227 ◽  
pp. 116614 ◽  
Author(s):  
Nanqiao You ◽  
Baoliang Li ◽  
Ruilin Cao ◽  
Jinjie Shi ◽  
Chun Chen ◽  
...  
Keyword(s):  
Steel Slag ◽  
Alkali Activated Slag ◽  
Ferronickel Slag ◽  
Activated Slag ◽  
Alkali Activated

Synthesis and Catalytic Performance of a New V-doped CeO2-supported Alkali-activated-steel-slag-based Photocatalyst

2021 ◽  
Vol 36 (2) ◽  
pp. 209-214
Author(s):  
Le Kang ◽  
Huiling Du ◽  
Jun Deng ◽  
Xinrui Jing ◽  
Sen Zhang ◽  
...  
Keyword(s):  
Steel Slag ◽  
Catalytic Performance ◽  
Doped Ceo2 ◽  
Alkali Activated

JUSTIFICATION OF THE USE OF METALLURGICAL SLAGS AS A BACKFILL MATERIAL FOR QUARRY CAVITIES

2021 ◽  
pp. 15-25
Author(s):  
Volodymyr Bondarenko ◽  
◽  
Oleksandr Filonenko ◽  
Mykhailo Petlovanyi ◽  
Vladyslav Ruskykh ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Large Scale ◽  
Experimental Studies ◽  
Metallurgical Slag ◽  
Open Pit ◽  
Practical Significance ◽  
Steel Smelting ◽  
Backfill Material ◽  
Steel Making ◽  
Metallurgical Slags

Purpose. Experimental studies of the interaction of blast-furnace and steel-making slags with open pit waters during their direct contact and assessment of the volume of filling of the formed man-made cavities during mining of mineral deposits. Methods. Based on the analysis, the current low level of metallurgical slag and the lack of real and effective directions of their large-scale utilization were determined. The laboratory studies of the interaction of metallurgical slags with open pit water at a certain time of interaction, generally accepted methods for studying the chemical composition and concentration of substances in water, computer-aided design software packages and drawings to determine the volumes of the open pit mined-out area were used. Results. The dynamics of changes in the products of interactions of steel-smelting slags with open-pit waters at a certain ratio and period of interaction was investigated. It was found that the concentration of pollutants upon contact of water with steel-making slag changes according to polynomial dependences on the time of their interaction, decreasing by the 30th day, which eliminates the danger for the aquifer. The safest type of metallurgical slag was recommended for the formation of the bottom layer of the backfill massif. The volumes of the mined-out area of the open pit were determined in detail to assess the volumes of placement of the backfill material based on metallurgical slags. Scientific novelty. The safety of the contact of backfill materials based on steelmaking slags with open pit water was scientifically proven, which is confirmed by the established polynomial patterns of changes in concentrations and pollutants from the ratio and time of interaction. Practical significance. The formation of the backfill massif on the basis of blast-furnace dump and steel-smelting slags will allow achieving an environmental effect, such as their safe disposal as a reclamation of technologically disturbed lands by mining and restoration of the economic value of the land plot, as well as preventing the formation of new dumps.

Research on the Recovery of Copper from Metallurgical Slag

Mining Revue ◽  
2021 ◽  
Vol 27 (3) ◽  
pp. 40-44
Author(s):  
Eugen Traistă ◽  
Camelia Bădulescu ◽  
Maria Lazăr ◽  
Camelia Traistă
Keyword(s):  
Metallurgical Slag ◽  
Industrial Wastes ◽  
Raw Material ◽  
Pollutant Emissions ◽  
Material Base ◽  
Metallurgical Slags ◽  
Slag Processing ◽  
Metallurgical Processes ◽  
Initial Research ◽  
Over Time

Abstract Metallurgical slag is one of the most common industrial wastes. Many of these wastes are not stable over time, by reacting with water and air, continuously generating emissions of heavy metals. Metallurgical slag processing is necessary for at least two reasons: reducing pollutant emissions and broadening the raw material base. The recovery of these slags is very difficult because they are the result of metallurgical processes that aimed to fix metals considered impurities in chemical matrices as stable as possible. This paper presents the initial research on the behavior of metallurgical slags against different leaching technologies.

Chemical indicators of sediment chronology

1993 ◽  
Vol 44 (4) ◽  
pp. 635 ◽  
Author(s):  
GW Kilby ◽  
GE Batley
Keyword(s):  
Urban Areas ◽  
Sewage Treatment ◽  
Alternative Methods ◽  
Chemical Components ◽  
Sedimentation Rates ◽  
Antifouling Paints ◽  
Chemical Indicators ◽  
Laboratory Facilities ◽  
Lead Zinc

The determination of recent sedimentation rates has traditionally used radiochemical dating techniques but, because of limited laboratory facilities and the costs of these techniques, alternative methods are desirable. Information on sedimentation rates and sediment history can be obtained from anthropogenic chemical components whose presence in sediments, especially near urban areas, can be used as markers to assess their chronology. More than one marker, with a known date of introduction, should be used. In this study, organosilicons first used in the early 1950s and tributyltin used in marine antifouling paints from 1972 were examined in sediments from Lake Macquarie, NSW, to supplement the known input of heavy metals from the lead-zinc smelter that has been operating at the northern end of the lake since 1897. The most reliable data were obtained at sites where all three markers were present, and use of these data allowed independent determination of the year of initial operation of a sewage treatment works.

Theoretical Calculation and Experimental Study on the Forming Heat of Cement Clinker Made from Steel Slag

2015 ◽  
Vol 814 ◽  
pp. 564-568 ◽  
Author(s):  
Ya Li Wang ◽  
Su Ping Cui ◽  
Gui Ping Tian ◽  
Ming Zhang Lan ◽  
Zhi Hong Wang
Keyword(s):  
Empirical Equation ◽  
Raw Materials ◽  
Steel Slag ◽  
Great Influence ◽  
Cement Clinker ◽  
Chemical Components ◽  
Forming Process ◽  
Acid Dissolution ◽  
Heat Efficiency ◽  
Heat Calculation

When steel slag, a by-product of steel making in impurity catching process, is added, the forming process of cement clinker and the major reactions in that process are changed. Since there are dramatic differences between the chemical components and mineral compositions of steel slag and that of natural cement raw materials, the empirical equation for the calculating forming heats of cement clinker made of limestone and clay is no longer applied for those made of steel slag. In this paper, the empirical equation for forming heat calculation of steel slag added cement clinker was promoted, and testified by acid dissolution experiments. Results showed that the change of raw materials had great influence on the forming heat of cement clinker. When the traditional raw materials were replaced with steel slag, the forming heat of cement clinker reduced. Calculating the forming heat by our revised empirical equation can help reduce errors and bring great convenience for the calculation and evaluation of heat efficiency. This research provides theoretical underpinning for the study and calculation of forming heat of steel slag added cement clinker.

Microstructure and phase evolution of alkali-activated steel slag during early age

2019 ◽  
Vol 204 ◽  
pp. 158-165 ◽  
Author(s):  
Ze Liu ◽  
Da-wang Zhang ◽  
Li LI ◽  
Ji-xiang Wang ◽  
Ning-ning Shao ◽  
...  
Keyword(s):  
Steel Slag ◽  
Phase Evolution ◽  
Early Age ◽  
Alkali Activated
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