Alpha HPA is a leading producer of high-purity alumina (HPA), using its proprietary solvent extraction (SX) technology. Our process is highly efficient and sustainable, producing HPA with a purity of 99.995% (4N5) and >99.999% (5N), with approximately 70% fewer emissions than the incumbent alkoxide process.

Our Smart SX Technology utilises established solvent extraction, repurposed for the selective extraction of Al3+ cations from aluminium-loaded liquor. This transforms aluminium-loaded organic (solvent) through two crystallisation steps into an intermediary product, which can be calcined to high-purity alumina (HPA) with benign off-gases. The loaded organic stream can be directed to any acid stream to generate 5N+ purity aluminium precursors (salts), or 4N+ boehmite or alumina. The process recycles close to 100% of its reagents and process streams.

The Smart SX process is simple, ingenious, and flexible, purifying a common industrial feedstock into a range of ultra-pure aluminium products at high efficiency and low cost. Our technology does not rely on novel units of operation but instead employs unique, proprietary process chemistry to deliver the world’s first aluminium SX facility.

The final products of the Alpha HPA process are high-purity aluminas and aluminium salts, which can be used in a variety of applications such as synthetic sapphire, lithium-ion batteries, and LED lights.

The Future of Alpha HPA

Alpha HPA is a major player in the global high-purity alumina market. The company’s proprietary process provides a competitive edge over other producers, positioning Alpha HPA to meet the growing demand for HPA in the coming years. You can learn more about our high purity alumina products, manufacturing and commercial availability by contacting our team at Alpha HPA.