Leaching of basic oxygen furnace sludge with sulphuric acid

Abstract

In this study the hydrometallurgical processing of BOF sludge in the sulphuric acid solutions under atmospheric pressureand temperatures up to 100 °C is investigated on a laboratory scale. The influence of sulphuric acid concentration, temperature, timeand liquid to solid ratio (L:S) on the leaching process was studied. The main aim of this study was to determine optimal conditions whenthe maximum amount of zinc passes into the solution.

Keywords

• basic oxygen furnace dust and sludge
• hydrometallurgy
• leaching
• zinc
• sulphuric acid