Latest News

Aluminium Extraction Using The Altek Salt Slag Press

User Profile Picture
Jay Cooney
Vice President of Communications

ALTEK have developed a specialised salt slag press to extract as much aluminium out of slag as possible. Salt slag differs from aluminium dross due to it having a lower aluminium content and a higher temperature when taken out of the furnace. ALTEK’s salt slag press is designed and programmed to match these differing needs so as to maximise aluminium extraction, and therefore saving you money and increasing aluminium recovery. Maximising your returns of aluminium from very hot salt slag can be difficult due to its low aluminium content and high temperature.

This press is designed with a specialised and patented ‘air cooled’ press head which rapidly cools the slag in conjunction with the large mass specialised RHINO CAST cast steel slag bin and seals the surface of the slag in the bin so as to stop any Oxygen ingress that would support continued thermiting. As a consequence it lowers the temperature of the salt slag to around 350°C to 400°C, to improve aluminium extraction but also stops all fuming and smoke within minutes of the pressing operation starting.