After the rigorous installation process of setting up, software synchronization and numerous commissioning test trials, the Metallurgical Technology Division (MeTD)'s laboratory autoclave is now fully operational at required leaching parameters. This 1-liter autoclave was procured to support the continuous pursuit of MeTD for the development of feasible value-adding activities of Philippine minerals, specifically that of laterite ores.

The complex equipment which is operated using high pressure and temperature is now being utilized for the current research that is aimed at comparing the efficiency of atmospheric leaching with the High Pressure Acid Leaching (HPAL) in treating low grade Philippine laterite ores. Several high pressure and atmospheric leaching tests using sulphuric acid were already conducted. Leaching products were submitted to the Chemical Laboratory and Service Section of MeTD for chemical analysis. Further researches using other types of acids and bases will also be conducted.

Presently, the autoclave is solely intended for research and development projects. However, MeTD technical personnel are looking into the possible inclusion of high pressure leaching tests as part of the laboratory services offered to the public in the near future.

By: Metallurgical Technology Division

Autoclave at MeTD’s laboratory