Alumina extraction and precipitation; Bayer process refining block (digestion to precipitation); Production mix, at plant, GLO

Dataset description

Core Bayer refinery block converting prepared bauxite feed into an alumina intermediate (post-digestion and precipitation), prior to final calcination/drying. This split follows literature identifying the Bayer process as the alumina production route from bauxite.

Technology description

Production of metallurgical-grade alumina (Al2O3) as a finished manufactured product at an alumina plant/refinery, using bauxite as the main raw material. This is the standard upstream step in the primary aluminium supply chain (bauxite → alumina → aluminium), with alumina shipped to smelters.; Core Bayer refinery block converting prepared bauxite feed into an alumina intermediate (post-digestion and precipitation), prior to final calcination/drying. This split follows literature identifying the Bayer process as the alumina production route from bauxite.; Flow represents metallurgical alumina for aluminium production (not artificial corundum), consistent with classification 'Aluminium, unwrought; alumina' and its role as intermediate to smelting.; System is 'at plant' production mix: includes on-site refining operations; upstream bauxite mining may be included or cut-off depending on dataset boundary, but the route remains Bayer-refinery-based.; No attempt is made to specify alternative non-bauxite alumina routes since provided context and references focus on the bauxite→alumina→aluminium chain.

Geographic context

No refinery geography is provided; modelled as global production mix. If a China-specific dataset is required, replace utilities and process parameters with CN-specific sources.

Record

Classification

ILCD · C · Manufacturing; ILCD · 24 · Manufacture of basic metals; ILCD · 242 · Manufacture of basic precious and other non-ferrous metals; ILCD · 2420 · Manufacture of basic precious and other non-ferrous metals