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How metals are extracted from their ores?

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It disclosed a process for the extraction of metals selected the group consisting of zinc (II), silver (I), cadmium (II), mercury (II), nickel (II), cobalt (II) and copper (II) aquosacontendo a solution, apart from these metals, metals selected the group consisting of calcium (II) and magnesium (II). The process includes a contact in the aqueous solution with a pH balance within the range of about 0.2 to about 3 cm an agent for extraction. more
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