Process for recovering metallic elements from zinciferous raw materials
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GALLIUM EXTRACTION PROCESS
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Zinc alloy allowing the production of high quality parts
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Process for the continuous manufacture of positive battery grids, and positive grid obtained according to such a method
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Lead-calcium alloys, especially for battery grids
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Germanium compounds and their use as a biocompatible oil
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Glass articles comprising lead, in particular crystal containers coated with a barrier layer of amorphous glass and process for producing such articles.
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Process for recovering lead, in particular from the active material of used batteries and electric furnace intended in particular for implementing the process.
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Germoxans, their preparation process, use of the same and mole protesis
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Process for germanium ore upgrading
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Sealing surround for chimney
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Germanium compounds and their use as biocompatible oil.
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PROCESS FOR PRODUCING A CRYSTAL CONTAINER COMPRISING A LAYER OBSTACLE TO THE MIGRATION OF THE LEAD TO ITS CONTENT AND CONTAINER THUS OBTAINED.
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PROCESS FOR OBTAINING A DENDRITIC CADMIUM FINE POWDER AND POWDER OBTAINED BY THE PROCESS
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Tray for a distiller column comprising such trays and use of such a column.
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Process for refining, especially de-pitching, lead.
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Thallium extraction process.
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Process and device for enriching gueulard gases in sulfur oxide (s).
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Process for the recovery of metal values contained in a gangue
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Hydrometallurgical treatment process for indium chloride solution
