A life-cycle assessment (LCA) model was developed to comparatively analyze the use of manual and auto-mated mining equipment in underground copper mine sites. Processes and key variables that were deter-mined to contribute to the environmental impact of o
Flotation separation of smithsonite from calcite is difficult due to their similar surface properties. In the present study, a reagent scheme of depressant calcium lignosulphonate (CLS) and collector benzyl hydroxamic acid (BHA) was introduced in the flot
Surprisingly, no investigation has been explored relationships between operating variables and metallurgical responses of coal column flotation (CF) circuits based on industrial databases for under operation plants. As a novel approach, this study impleme