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Record Nr. |
UNINA9910966788703321 |
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Autore |
Drapala Jaromir |
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Titolo |
Metallurgy of pure metals : methods of refining pure substances / / Jaromir Drapala and Lumir Kuchar |
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Pubbl/distr/stampa |
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Cambridge, : Cambridge International Science Publishing, 2008 |
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ISBN |
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1-907343-00-8 |
1-4416-3885-7 |
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Descrizione fisica |
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1 online resource (237 p.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Metallurgy |
Metals - Refining |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliography and index. |
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Nota di contenuto |
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""Contents""; ""Introduction""; ""1. PURE METALS AND CLASSIFICATION OF THE METHODS OF PREPARATION OF PURE SUBSTANCES""; ""2. GENERAL CHARACTERISTICS AND CLASSIFICATION OF METHODS OF SEPARATION AND REFINING OF SUBSTANCES""; ""3. SORPTION""; ""4. EXTRACTION""; ""5. CRYSTALLISATION""; ""6. CRYSTALLISATION FROM MELTS""; ""7. EVAPORATION, CONDENSATION, TRANSPORT REACTIONS 7.1. The theory of separation of compounds by evaporation and condensation""; ""8. ELECTROLYSIS""; ""9. ELECTROTRANSPORT""; ""10. DIFFUSION""; ""11. SELECTIVE PRECIPITATION, OXIDATION AND REDUCTION"" |
""12. DEGASIFICATION OF METALS""""13. METHODS OF TESTING PURE METALS""; ""References""; ""SYMBOLS""; ""APPENDICES""; ""INDEX"" |
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Sommario/riassunto |
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The metallurgy of pure metals is a subject of university courses concerned with the methods of refining in preparation of high purity substances. Special attention is paid not only to the high degree of chemical purity attainable by chemical or physico-chemical hydrometallurgical methods, such as sorption, extraction, crystallisation from aqueous solutions, electrolysis, and also by pyrometallurgical methods such as crystallisation from melts, evaporation, condensation and transport reactions, electro-transport, diffusion separation of substances, removal of gases from melts and vacuum refining of metals. In the production of high purity metals by |
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crystallisation refining methods, zone melting and directional crystallisation as the main methods of preparation of defined super purity metals, the controlled redistribution of the impurities and admixtures present in the main substance also takes place at the melt-crystal interface in the single crystal state. The determination of the distribution coefficient, its properties and correlation with the proton number of the admixture of the distribution coefficient is the subject of special attention in this book. The Appendix summarizes the values of the distribution coefficients in binary diagrams, mainly copper, aluminium, iron and its transformation, selected noble, refractory and radioactive metals and lanthanides and semiconductors. |
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