caa a22 4500 445850345 CHVBK 20180317145411.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1134/S0040579510051173 doi (NATIONALLICENCE)springer-10.1134/S0040579510051173 Decomposition of converter copper-nickel slag in solutions of sulfuric acid [Elektronische Daten] [E. Kopkova, P. Gromov, E. Shchelokova] The process of the sulfuric decomposition of copper-nickel converter slags with the obtainment of solutions of nonferrous metals suitable for their further isolation and separation by liquid-liquid extraction by selective reagents is investigated. The process kinetics is studied and it is obtained that the sulfuric decomposition of the slag is characterized by a retarded reaction rate and effectively proceeds only at elevated temperatures (90°C), consumptions (S: L = 1: 10), and acid concentrations (400 g/l). It is shown that the solutions of sulfuric acid can be used for the isolation of the sum of nonferrous metals and iron from slag, and the process most effectively proceeds during the decomposition into two stages, for which the technological recycle solutions of the acting copper-nickel enterprise can be used, for example, copper sulfuric electrolytes. Pleiades Publishing, Ltd., 2011 copper-nickel converter slag nationallicence decomposition nationallicence sulfuric acid nationallicence reaction kinetics nationallicence heating nationallicence filtration nationallicence separation nationallicence nonferrous metals nationallicence iron nationallicence degree of recovery nationallicence Kopkova E. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center, Russian Academy of Sciences, ul. Fersmana 26a, 184209, Akademgorodok, Apatity, Murmansk oblast, Russia aut Gromov P. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center, Russian Academy of Sciences, ul. Fersmana 26a, 184209, Akademgorodok, Apatity, Murmansk oblast, Russia aut Shchelokova E. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center, Russian Academy of Sciences, ul. Fersmana 26a, 184209, Akademgorodok, Apatity, Murmansk oblast, Russia aut Theoretical Foundations of Chemical Engineering SP MAIK Nauka/Interperiodica 45/4(2011-08-01), 505-510 0040-5795 45:4<505 2011 45 11236 https://doi.org/10.1134/S0040579510051173 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0040579510051173 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kopkova E. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center, Russian Academy of Sciences, ul. Fersmana 26a, 184209, Akademgorodok, Apatity, Murmansk oblast, Russia aut NATIONALLICENCE 700 1- Gromov P. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center, Russian Academy of Sciences, ul. Fersmana 26a, 184209, Akademgorodok, Apatity, Murmansk oblast, Russia aut NATIONALLICENCE 700 1- Shchelokova E. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center, Russian Academy of Sciences, ul. Fersmana 26a, 184209, Akademgorodok, Apatity, Murmansk oblast, Russia aut NATIONALLICENCE 773 0- Theoretical Foundations of Chemical Engineering SP MAIK Nauka/Interperiodica 45/4(2011-08-01), 505-510 0040-5795 45:4<505 2011 45 11236 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer