High-silica bauxites enrichment
Pavlodar Alumina Plant, a part of Aluminium of Kazakhstan JSC (ERG), specializes on alumina production. Capacity of the existing production is ~ 1.5 million tons per year, production technology employed - Bayer sintering. Production process implies usage of relatively low silica modul (A-S) bauxites - ~ 3.7, which negatively affects the economics of the manufactured products, additionally, relatively high content of iron and carbonates (~ 20% and CO2 up to 2.5-3% respectively). With that respect, we are looking for efficient high-siliceous, high-iron and high-siderite bauxite enrichment (both from a technical and economic perspectives).
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