... the remediation schemes of tailings from Hunan Province, China, where by different tailings containing arsenopyrite and realgar were blended with exogenous slag zero valence iron (ZVI). Introducing Fe-oxidising bacteria ( Acidithiobacillus ferrooxidans ) recreates a biologically oxidative environment. All...

...Dmitry A. Artemyev; Maksim N. Ankushev; Ivan A. Blinov; Vasily A. Kotlyarov; Yana A. Lukpanova Abstract Columnar slags have been excavated from the Early Iron Age kurgan (a type of burial mound or barrow, heaped over a burial chamber) of Taksay 1 in western Kazakhstan. We have identified over 35...

... in cavities within a pebble of the ancient marine slag collected in the Pacha Limani area of the Lavrion mining district, Attiki, Greece. This phase of anthropogenic origin was characterized by electron microprobe, infrared spectroscopy, powder and single-crystal X-ray diffraction. The unique crystal...

...Youzheng Qi; Abdellahi Soueid Ahmed; André Revil; Ahmad Ghorbani; Feras Abdulsamad; Nicolas Florsch; Jeremy Bonnenfant ABSTRACT With the progress of metallurgical activities, more and more dumped slag heaps emerge as valuable deposits to feed the growing need for metal resources. Detecting...

...Kim Eekelers; Patrick Degryse; Philippe Muchez Abstract The frequent occurrence of iron slag in excavation layers of the Hellenistic to Byzantine city of Sagalassos (SW Turkey), indicates continuous iron working from the 1st to 7th century A.D. The slag samples are identified as smithing hearth...

...Rafał Warchulski Abstract Temperature estimates are key to understanding the crystallization of pyrometallurgical slags. To date, temperature approximations have been based mainly on phase diagrams; these give approximate data only. Geothermometers ( e.g ., phase – whole-rock composition) applied...

...Roger H. Mitchell; Anthony N. Mariano Abstract Phases present in slags from Araxá (Brazil), Oka (Quebec) and Fen (Norway) resulting from the production of ferroniobium by the aluminothermic reduction of pyrochlore-group minerals are a function of composition of the pyrochlore feed and the diverse...

... of geomorphological, pedological, and hydrogeological processes ( F ig . 2K–N ). supergene alteration critical zone gossan orecrete Bronze Age post-mining minerals tailings slags Supergene processes, irrespective of their natural or anthropogenic origin, lead to the formation of oxygen-bearing...

...R. Warchulski; A. Gawęda; M. Kądziołka-Gaweł; K. Szopa Abstract Wastes accumulated at Piekary Śląskie, Poland, are the result of 150 years of continuous working of the Orzeł Biały smelting plant. Slags are composed of: oxides (spinel, hematite, zincite); silicates and aluminosilicates (olivine...

... and to slag attack of selected dense samples were investigated in relation to their thermal equilibrium and microstructure. The nature, chemical composition and zonation of the phases and the microstructure of the products were characterized by X-ray fluorescence (XRF) and X-ray diffraction (XRD), as well...

...Michael Schindler Abstract Highly altered slag samples from the historical O’Donnell Roast Yards, Sudbury, Ontario, Canada were examined to gain an understanding of the partitioning of metal and metalloids into phases during roasting and weathering processes and to support the environmental...

... conversions and of the carbonate products formed. For this purpose, this paper presents the synthesis and carbonation of the seven most abundant alkaline minerals found in AOD, CC and BOF slags, namely: åkermanite (Ca 2 MgSi 2 O 7 ), bredigite (Ca 7 Mg(SiO 4 ) 4 ), cuspidine (Ca 4 Si 2 O 7 F 2 ), β– and γ–C 2...

...D. Yilmaz; L. Lassabatere; D. Deneele; R. Angulo-Jaramillo; M. Legret Abstract Basic oxygen furnace (BOF) slag is considered as a potential alternative construction material and is used here on an experimental plot to accurately quantify the risk of pollutant release. Since pollutant release...

..., gunningite and copper and zinc chlorides crystallized in the sequence specified at an evaporative barrier around glassy slag produced by the Belovo zinc processing plant. A complex cemented barrier that has developed within the old Salair sulfide tailings contains two well defined layers: an upper layer...

...O. I. Siidra; N. V. Chukanov; I. V. Pekov; S. V. Krivovichev; A. Magganas; A. Katerinopoulos; P. Voudouris Abstract Transparent prismatic crystals of Pb 2 (AsO 2 OH)Cl 2 were collected in black metallurgical slag on the coast in the Punta Zeza area, 3 km south of the town of Lavrion, Greece...

...). Mine wastes are heterogeneous materials consisting of ore, gangue, industrial minerals, metals, coal or mineral fuels, rock, loose sediment, mill tailings, metallurgical slag and wastes, roasted ore, flue dust, ash, processing chemicals and fluids. This definition is illustrated by the Kalgoorlie...

..., to strip AMD waters of their dissolved metals and metalloids, and to promote revegetation of sulfidic wastes. Slags are a partially vitreous by-product of smelting ore to separate the desirable metals from unwanted elements. Slags have unique physical and mechanical characteristics that make them...

... , f S 2 , and/or decreasing temperature , T , result in the breakdown of the fahlores. The presented chemical and mineralogical data were subsequently compared to ore-fragments, copper slags and raw copper from mining archaeological excavations at the Kiechlberg Early Bronze Age copper smelting site...

... and mineralogical analyses excluded a relationship to copper smelting; instead, all samples are consistent with a highly efficient iron smelting operation using the bloomery process and slag tapping furnaces. A lateritic iron ore containing at least 80 wt% FeO was smelted, resulting in an estimated one unit...