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Indium is primarily extracted from zinc ores, particularly sphalerite, and is often obtained as a byproduct during the refining of these ores. The separation process typically involves pyrometallurgical methods, where the ore is smelted to concentrate the zinc, followed by hydrometallurgical techniques such as leaching with acids to dissolve indium. The indium can then be recovered through methods like solvent extraction or precipitation. Advanced techniques such as ion-exchange or membrane separation may also be employed for higher purity recovery.

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2w ago

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