المنتجات

Bauxite mining Norsk Hydro

About 7 percent of the earth 39 s crust is aluminium making it the third most abundant element after oxygen and silicon Aluminium production starts with the raw material bauxite Bauxite is a mineral found mostly in a belt around the equator Bauxite containing 15 25 percent aluminium is the only ore that is used for

Mining and Refining – Process Bauxite amp Alumina

The aluminium containing bauxite ores gibbsite böhmite and diaspore are the basic raw material for primary aluminium production Proven economically viable reserves of bauxite are sufficient to supply at least another 100 years at current demand While demand for bauxite is expected to grow as demand for high quality

Oxide ores Glossary Sumitomo Metal Mining Co Ltd

Oxide ores These ores contain metals in oxidized forms Unlike sulfide ores oxides need much more energy to achieve melting For this reason the hydrometallurgical approach is generally used to refine these ores Back to Glossary
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