Explain the process of leaching of alumina from bauxite
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leaching is a first step in the extraction of the metals like aluminium, gold and silver from their ores. In this method the ore is soaked in a particular solution for long time. for example concentration of bauxite , the aluminium Ore, is done by leaching method .bauxite is soaked in aqueous NAOH or NA2CO3 which dissolves the main ingredient alumina in it. this means that bauxite is leached by Sodium Hydroxide .
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