New solvent systems for the recycling of metals
| Autor: | D.C. Goodall |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Solvent system
Inorganic chemistry chemistry.chemical_element Oxyanion Management Monitoring Policy and Law Highly selective Pollution Sulfur Metal Solvent chemistry.chemical_compound chemistry visual_art visual_art.visual_art_medium General Earth and Planetary Sciences Acetonitrile Dissolution Nature and Landscape Conservation General Environmental Science |
| Zdroj: | Conservation & Recycling. 9:67-71 |
| ISSN: | 0361-3658 |
| Popis: | The mixed non-aqueous systems dimethyl sulphoxide - sulphur dioxide and dimethyl formamide - sulphur dioxide react selectively with metal oxides, dissolving MgO, V 2 O 5 , CrO 3 , MnO 2 , CoO, CuO, Cu 2 0, ZnO, SnO 2 , PbO 2 , La 2 O, and Ag 2 O at ambient temperature, forming sulphur oxyanion compounds. Dimethyl formamide - sulphur dioxide also converts CuO and Cu 2 O directly to copper metal. Acetonitrile - sulphur dioxide dissolves CuO and Cu 2 O only. Such highly selective reactions, occurring at ambient temperatures, with little or no loss of solvent, offer a valuable technique for recycling metals from waste and converting them directly to industrially valuable materials. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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