The 6-hour duration was sufficient for better oil extraction and higher yields using hexane as the apolar solvent. Generally speaking, the solvent extraction process is very efficient, especially for ...

Highlights: Meridian drills more multiple stacked layers of shallow high-grade Au-Cu-Ag ore at Cabaçal; — CD-702: 28.6m @ 3.5g/t AuEq (2.6% ...

The study commenced recruitment on 28 October 2016. Recruitment was impacted by the COVID-19 pandemic, with recruitment temporarily paused at individual centres. Following the prespecified interim ...