AluSalt™ is ALTEK’s economically viable solution to the global issue of salt slag (salt cake) recycling and processing. Depending on the quality of scrap or dross, 100kg - 1,000kg of salt slag is produced for each 1,000 kg of material charged into a Rotary Salt Furnace (RSF) with salt flux operation, a popular recycling method which amounts to several million tonnes of salt slag production each year. AluSalt is a unique, safe and optimised process, the first of its kind in the industry and the result of many years of research. Starting at 5,000 tonnes per year capacity and increasing to units capable of 30,000 tonnes per year, the technology will be available to the majority of aluminium recycling companies that generate salt slag. This will enable the aluminium recycler to meet the ever increasing stringent environmental legislation, improve their financial performance, provide security of their operation by having control of their waste streams, and ultimately reduce their own, and the industry’s carbon footprint.
By approaching the industry challenge with a clean sheet of paper and different perspective, ALTEK have been able to develop a technology with a CAPEX and OPEX that allow a cost effective solution for the world’s aluminium companies to re-cycle salt slag at their facilities.
The attached press release provides more information.
AluSalt™ offers economic, efficient recycling of salt slag for small to medium volumes at source.
There are several important stages of the AluSalt™ process to improve aluminium recovery, remove other metallic, and to create the necessary input material for an efficient salt slag recycling process.
- Stage 1: Salt Slag Pressing
- Stage 2: Salt Slag Crushing, screening and metal separation
- Stage 3: Salt re-crystalisation and NMP processing