nach oben

Erschienen in:

2018 | OriginalPaper | Buchkapitel

Experimental Study on Oxidative Desulfurization and Selective Reduction of Molten Copper Slag

verfasst von : Wang Yun, Zhu Rong, Chen Qizhou

Erschienen in: 9th International Symposium on High-Temperature Metallurgical Processing

Verlag: Springer International Publishing

Einloggen

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config

KI-gestützte Suche

Aus

Abstract

The copper in slag is mainly in the form of Cu₂S, and it’s easy to make matte suspended in slag. The sulfur in slag can be removed by oxidative process, and the copper sulfides can be converted into oxides, then the copper can be easily reduced and separated. Thermodynamic calculation by FactSage7.0 shows that the sulfur in slag can be removed by air, while the activity of Cu₂O will increase, and the Cu₂S cannot be reduced, while Cu₂O is easily reduced into metal. The oxidation and reduction of molten copper slag were carried out and agreed well with theoretical calculations. Sulfur in slag can be dropped to 0.23 wt%, and the utilization rate of air is in the range of 14.98–73.39%. The copper recovery rate can reach 83.82% and the residue copper can be reduced to 0.28 wt%.

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

über 102.000 Bücher
über 537 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Finance + Banking
Management + Führung
Marketing + Vertrieb
Maschinenbau + Werkstoffe
Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

über 67.000 Bücher
über 390 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Maschinenbau + Werkstoffe

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Vorheriges Kapitel Preparation of Titanium Foams Through Direct Electrolysis of the Sintered CaO-TiO2 in Molten Salt CaCl2

Nächstes Kapitel Recycling SiO2 and Al2O3 from the Laterite Nickel Slag in Molten Sodium Hydroxides

Liu Z (2014) Current situation and development of energy saving and waste reduction in Chinese copper smelting industry. Nonferrous Met Sci Eng

Peng RQ (2005) Copper metallurgy. Central South University Press, Changsha

Ueda S, Yamaguchi K, Takeda Y (2008) Phase equilibrium and activities of Fe-S-O melts. Mater Trans 49(3):572–578CrossRef

Roghani G, Hino M, Itagaki K (1997) Phase equilibrium and minor elements distribution between SiO₂-CaO-FeO_x-MgO slag and copper matte at 1573 K under high partial pressures of SO₂. Mater Trans 38(8):707–713CrossRef

Liu DF, Gao F, Zhang BQ, Shen QH (2014) Application and implementation of new reduction & cleaning technology for converter slag. Mining Metall Eng

Liang DH, Wang CY, Yin F, Chen YQ, Wang J (2014) Experimental study on depleting a copper-bearing electric furnace slag. Nonferrous Mining Metall

Sun X, Zhang X, Zhu X, Shen QH (2014) Analysis of influencing factors on copper content reduction in slag of cleaning electric furnace. China Nonferrous Metall

Pan J, Zheng GL, Zhu DQ, Zhou XL (2013) Utilization of nickel slag using selective reduction followed by magnetic separation. Trans Nonferrous Met Soc China 23(11):3421–3427CrossRef

Henao HM, Hino M, Itagaki K (2002) Phase equilibrium between Ni-S melt and CaO-Al₂O₃ based slag in CO-CO₂-SO₂ gas mixtures at 1773 K. Mater Trans 43(11):2873–2879CrossRef

10.

Siwiec G, Oleksiak B, Matuła T, Socha L, Stanek W (2014) Reduction of copper slag with the use of carbon granulates. Metalurgija 53(4):585–587

11.

Henao HM, Nexhip C, George-Kennedy DP, Hayes PC, Jak E (2010) Investigation of liquidus temperatures and phase equilibria of copper smelting slags in the FeO-Fe₂O₃-SiO₂-CaO-MgO-Al₂O₃, system at p_o2, 10⁻⁸ atm. Metall Mater Trans B 41(4):767–779CrossRef

12.

Jian-Hang HU, Wang H, Zhao LM, Lei LI, Liu HL (2011) Characterization of copper slag from impoverishment. J Saf Environ 11(2):90–93

13.

Roghani G, Takeda Y, Itagaki K (2000) Phase equilibrium and minor element distribution between FeO_x-SiO₂-MgO based slag and Cu₂S-FeS matte at 1573 K under high partial pressures of SO₂. Metall Mater Trans B 31(4):705–712CrossRef

14.

Ji-Peng YU, Wang LJ, Wang YX, Liu YQ, Zhou GZ (2014) Effect of Fe²⁺ and Fe³⁺ on the properties of melts containing FeO_x. J Iron Steel Res

Titel: Experimental Study on Oxidative Desulfurization and Selective Reduction of Molten Copper Slag
verfasst von: Wang Yun
Zhu Rong
Chen Qizhou
Verlag: Springer International Publishing
Buch: 9th International Symposium on High-Temperature Metallurgical Processing
Print ISBN: 978-3-319-72137-8

Electronic ISBN: 978-3-319-72138-5

Copyright-Jahr: 2018
DOI: https://doi.org/10.1007/978-3-319-72138-5_24

Premium Partner

Marktübersichten

Die im Laufe eines Jahres in der „adhäsion“ veröffentlichten Marktübersichten helfen Anwendern verschiedenster Branchen, sich einen gezielten Überblick über Lieferantenangebote zu verschaffen.

Zur Marktübersicht