Recovery of Aluminium Metal Using Ultrasonic Technique and Production of Al–Si Hypereutectic Alloys from 6063 Alloy’s Black Dross Using Silicon Lumps and Flux

The present work aimed to use an alternative method for the pre-treatment of the black dross samples to remove the unwanted components like nonmetallic and salt content by using the immersion method with diluted nitric acid and sulfuric acid during ultrasonic treatment, the process consists of the following three (3) unit operations: