scholarly journals Ni-Fe-Co alloy – magnesia-iron-silicate slag equilibria and the behavior of minor elements Cu and P in nickel slag cleaning

2021 ◽  
Author(s):  
Katri Avarmaa ◽  
Pekka Taskinen ◽  
Lassi Klemettinen ◽  
Hugh O’Brien ◽  
Daniel Lindberg
Keyword(s):  
Iron Silicate ◽  
Silicate Slag ◽  
Iron Silicate Slag ◽  
Slag Cleaning ◽  
Minor Elements

scholarly journals Slag Cleaning Equilibria in Iron Silicate Slag–Copper Systems

2019 ◽  
Vol 5 (4) ◽  
pp. 463-473 ◽  
Author(s):  
Niko Hellstén ◽  
Lassi Klemettinen ◽  
Dmitry Sukhomlinov ◽  
Hugh O’Brien ◽  
Pekka Taskinen ◽  
...  
Keyword(s):  
Iron Silicate ◽  
Silicate Slag ◽  
Iron Silicate Slag ◽  
Slag Cleaning ◽  
Slag Copper

scholarly journals Distributions of As, Pb, Sn and Zn as minor elements between iron silicate slag and copper in equilibrium with tridymite in the Cu–Fe–O–Si system

2021 ◽  
Vol 112 (3) ◽  
pp. 178-188
Author(s):  
Taufiq Hidayat ◽  
Jiang Chen ◽  
Peter C. Hayes ◽  
Evgueni Jak
Keyword(s):  
Experimental Data ◽  
High Temperature ◽  
Rapid Quenching ◽  
Iron Silicate ◽  
Condensed Phases ◽  
Silicate Slag ◽  
Iron Silicate Slag ◽  
Minor Elements ◽  
Partial Pressures ◽  
Silica Ampoule

Abstract The distributions of arsenic, lead, tin and zinc between iron silicate slag and copper in equilibrium with tridymite in the Cu–Fe–O–Si system have been experimentally determined at selected oxygen partial pressures (P(O2)) at temperatures of 1 523 K and 1 573 K. The experimental technique involved high temperature equilibration in a sealed silica ampoule to minimize the vaporization of minor elements, rapid quenching of the condensed phases, and the direct composition measurements of the condensed phases using microanalysis techniques. The effective P(O2)s of the samples were determined based on the measured Cu2O concentrations in slag. The new experimental data resolve discrepancies found in previous studies and have been used in the development of a new thermodynamic database of the Cu–Fe–O–Si system containing minor elements.

scholarly journals Reactivity of modified iron silicate slag as sustainable alternative binder

◽  
2019 ◽  
Author(s):  
Pithchai Sivakumar ◽  
◽  
Elke Gruyaert ◽  
Nele De Belie ◽  
Stijn Matthys ◽  
...  
Keyword(s):  
Iron Silicate ◽  
Silicate Slag ◽  
Iron Silicate Slag

scholarly journals Characterisation and leaching behaviour of granulated iron silicate slag constituents

2021 ◽  
pp. 1-10
Author(s):  
Jakob Kero Andertun ◽  
Caisa Samuelsson ◽  
Pasi Peltola ◽  
Fredrik Engström
Keyword(s):  
Iron Silicate ◽  
Silicate Slag ◽  
Iron Silicate Slag ◽  
Leaching Behaviour

scholarly journals Settling of Copper Phases in Lime Modified Iron Silicate Slag

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1098
Author(s):  
Jenny Isaksson ◽  
Tommy Vikström ◽  
Andreas Lennartsson ◽  
Anton Andersson ◽  
Caisa Samuelsson
Keyword(s):  
Copper Content ◽  
Iron Silicate ◽  
Copper Recovery ◽  
Settling Rate ◽  
Silicate Slag ◽  
Iron Silicate Slag ◽  
Final Slag ◽  
Slag Properties ◽  
Slag Copper ◽  
Slag Modification

Copper in discarded slag decreases the profits and copper recovery during the pyrometallurgical extraction processes. The copper losses to slag can be reduced by using a settling furnace, in which mechanically entrained copper droplets separate from the slag under the action of gravity. The settling rate of entrained droplets can be increased by modifying the slag composition and, thus, the slag properties, which are known to influence the settling rate. The knowledge of industrial CaO slag modification in a reduced iron silicate slag with a Fe/SiO2 ratio close to unity is limited. An industrial trial was thus conducted in an electric settling furnace, where the slag had been pretreated in a fuming furnace, to investigate the effect of CaO slag modification on the final slag copper content. Slag samples were collected from the ingoing and outgoing slag and from within the furnace of batches modified with CaO up to about 16 wt %. The trial was evaluated by comparing the final slag copper content and the copper recovery in the settling furnace. The results indicate that the settling becomes more efficient with the CaO modification as the final slag copper content decreased with increasing CaO content.

scholarly journals Characterisation and leaching behavior of CaO-modified iron-silicate slag produced in laboratory and industrial scales

2021 ◽  
pp. 1-12
Author(s):  
Jakob Kero Andertun ◽  
Tommy Vikström ◽  
Pasi Peltola ◽  
Caisa Samuelsson ◽  
Fredrik Engström
Keyword(s):  
Iron Silicate ◽  
Silicate Slag ◽  
Leaching Behavior ◽  
Iron Silicate Slag

scholarly journals Nature of Copper Dissolved in Silica-Saturated Iron Silicate Slag Studied by X-ray Photoelectron Spectroscopy.

2001 ◽  
Vol 117 (4) ◽  
pp. 293-297
Author(s):  
Hiroyuki FUKUYAMA ◽  
Anton TCHAVDAROV ◽  
Kazuhiro NAGATA
Keyword(s):  
Photoelectron Spectroscopy ◽  
Iron Silicate ◽  
Silicate Slag ◽  
X Ray ◽  
Iron Silicate Slag
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