Pilot plants

The groundbreaking objective in RemovAL is the first ever Pilot scale demonstration of a holistic Bauxite Residue valorization in a financially viable and ecologically sustainable manner.

6 innovative pilot plants across Europe

Combined they will form a network of technological nodes, enabling optimum processing flow sheets 2 for valorising the produced bauxite residue

The validation will be done for 3 European alumina producers (representing 44% of the European alumina production) and one legacy site own

de-alkanization

Demonstrate at pilot scale the de-alkalization technology to remove alkali content from bauxite residue at levels below 0.5% wt, making it suitable for various applications
At least 40 t of bauxite residue will be processed by AAL at a mobile pilot plant in IRELAND

green soil stabilizer

Demonstrate the use of processed bauxite residue as green soil stabilizer for civil works applications, though the stabilization of bauxite residue with other industrial by products
At least 800 t of bauxite residuewill be processed and used by ACCIONA as a raw material for the construction of a road in Spain

lightweight aggregates &
high performance binders

Demonstrate at pilot scale the production of lightweight aggregates and high performance binders, through different thermal treatments of bauxite residue
At least 10 t of bauxite residue will be processed in the RIO TINTO Pilot plant in France

ferro-silicon alloy

Demonstrate at pilot scale the production of ferro-silicon alloy from Electric Arc Furnace (EAF) co-processing of bauxite residue with other industrial by-products, like Spent Pot Lining (SPL) form aluminium primary production
At least 50 t of Bauxite Residue will be processed in the AoG Pilot plant in Greece and in the ELKEM pilot plant in Norway

microwave furnace

Demonstrate at a prototype microwave furnace the production of metallic iron from processing bauxite residue with other industrial by-products
At least 250 kg of Bauxite Residue will be processed in CEINNMAT’s mobile prototype plant in both Spain and Greece

hydrometallurgy

Demonstrate the production of REE concentrate, Ga concentrate, alumina/soda solution and rutile concentrate from the hydrometallurgical processing of engineered slags/sinters produced in RemovAL pyrometallurgical pilot plants. Ga is co-extracted both from the slag and the Bayer liquor
At least 500 kg of slag and 100 lt of Bayer liquor will be processed at RWTH/MEAB pilot plant in Germany