Abstract Dissolution and solubility of palladium in iron silicate melts saturated with alumina–iron spinel at 1300°C has been measured using an equilibration-drop quenching technique combined electron probe microanalysis laser ablation–inductive coupled plasma–mass spectrometry analysis from polished sections. Composition the resulting Fe-Pd alloy allowed estimation activity different oxygen pa...

The low grade of copper deposits and the use froth flotation process have caused excessive tailing production. In recent years, experts looked for new alternative methods to improve this situation. Black minerals are abundant resources not exploited by large-scale mining possess high Mn concentrations. On other hand, manganese nodules submarine show concentrations Cu, Ni, Fe, and, mainly, Mn. H...

Annually, hundreds of thousands tons slags are involved in the reverberator and flash smelting as well converting operations Cu-Fe sulfide concentrates to produce matte Sar Cheshmeh copper smelter plant, Iran, disposed landfill cooled air. Due their relatively high average content (about 1.5 wt%), a mineral processing plant based on flotation process has recently been established Cu-sulfide con...

in this research, the influence of chemical composition of slags and the melting rate on the impurity of commercial grade iron in esr processing has been investigated.the chemical composition and microstructure studies were evaluated, using spectrophotometer,omand edx analyses attached to sem.the results show that esr process has successfully reduced the amount and size of inclusions. in some c...

This paper will define the slag compositions required to obtain and control optimum foamy slag conditions in the Electric Furnace. In defining the optimal slags, consideration is given to the effects of scrap quality, carbon injection, slag basicity and MgO content. A computer model based on published phase-diagrams has been developed which graphically maps the chemistries for optimal foaming c...

We make a conjecture about mean curvature flow of Lagrangian submanifolds of Calabi-Yau manifolds, expanding on that of [Th]. We give new results about the stability condition, and propose a Jordan-Hölder-type decomposition of (special) Lagrangians. The main results are the uniqueness of special Lagrangians in hamiltonian deformation classes of Lagrangians, under mild conditions, and a proof of...

The present work is a review of the substantial effort that has been made to measure and understand the effects of corrosion with respect to the properties, performance, and durability of various forms of silicon carbide and silicon nitride. The review encompasses corrosion in diverse environments, usually at temperatures of 1000 °C or higher. The environments include dry and moist oxygen, mixt...

The paper considers one of possible options for the waste-free processing dumped masses nickel slags, accumulated over years operation some enterprises. This process includes use hydroand pyrometallurgical processing, which results in three products: iron sulfate, ferrosilicon with a small admixture aluminum, and slag from smelting. has hardness 7-7.5 Mohs can be used as an abrasive powder sand...

The aim of this research work was the evaluation feasibility to utilize industrial by-products, such as electric arc furnace steel slags, for sustainable concrete production. paper evaluated environmental and mechanical properties slags concrete, respectively. Specifically, release contaminants from investigated by leaching test fresh hardened were a mixture designed with partial substitution (...