Sponge iron (DRI) due to the high surface area, often shows a high tendency to re-oxidation and at some cases spontaneous combustion (autoignition). In this work, re-oxidation behavior and autoignition of sponge iron, produced from different types of iron ore has been investigated. Isothermal and non-isothermal re-oxidation experiments were carried out on each type of DRI and their autoignition...

Design of blasting parameters plays an important role in the optimization of mining cost as well as cost of subsequent processing of ore. Drilling and handling costs are the major mining cost. This work presents an indirect optimization model for mining cost, through optimization of blasting parameters for a particular set of drilling and loading equipment.

introduction mesgar iron occurrence is located in northwestern part of the central iran, 115 km south of zanjan. although there is a sequence of volcanic-pyroclastic rocks accompanied by iron mineralization, no detailed works had been conducted in the area. the present paper provides an overview of the geological framework, the mineralization characteristics, and the results of geochemical stud...

The uncontrolled spread of illegal artisanal small-scale gold mining (ASM), popularly termed “galamsey” in Ghana, has, for decades, impacted adversely upon water bodies, soils, wildlife, human health, and safety. A lack of understanding, however, of the types of galamsey, their operational attributes, and their relative impacts has unfortunately hindered an effective policy response despite num...

Purpose is to develop efficient scheduling excavate steep-grade iron-ore deposits using near-vertical layers relying upon production practices by an open pit of Poltava Mining-and-Processing Integrated Works (MPIW). Methods. The goal achievement involved system analysis openwork for means in MPIW; the process was structured from viewpoint decision-making under uncertainty. Findings. New methods...

the uncontrolled spread of illegal artisanal small-scale gold mining (asm), popularly termed “galamsey” in ghana, has, for decades, impacted adversely upon water bodies, soils, wildlife, human health, and safety. a lack of understanding, however, of the types of galamsey, their operational attributes, and their relative impacts has unfortunately hindered an effective policy response despite num...