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Method for the recovery of metals from materials containing them in the form of sulphides
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Hydrometallurgical process for treating discharged batteries
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Selectively recovering lead, zinc and calcium from insoluble oxides or salts
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Method for the recovery of lead from flat batteries
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Hydrometallurgical process for the recovery of copper and zinc from materials which contain them in metallic form
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Method for the recovery of lead from material which contains it in the form of dioxide and red lead
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Extraction procedures for zinc, iron and cadmium from smoke abatement dusts from electric ovens.
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Process for the recovery of zinc oxide
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