Converter Slag Flotation—its Effect on Copper Reverberatory Smelting Process

Itakura, Kotochika; Nagano, Takeshi; Sasakura, J.

doi:10.1007/bf03378897

Cited by 3 publications

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“…The control of magnetite and hearth buildup in the conventional smelting circuit has been discussed in the literature and has been mentioned in several reviews [15,90,99,101,106,132,[144][145][146][147][148][149][150]. Excessive magnetite in the slag and accumulation of magnetite and chrome-magnetite layers in the reverberatory furnace has always been a problem for many furnace operators.…”

Section: L~'mentioning

confidence: 99%

“…Isa, milling of converter slag improved the furnace smelting rate along with a lowering of the due flux requirement for converter slag, the matte buildup dissolved and overall metallurgical control improved [133 J. At Naoshima, as a result of converter slag milling, the following was observed: 25 % increase in smelting capacity, lower slag losses and flux costs and fewer difficulties associated with magnetite buildup [132]. …”

Section: L~'mentioning

confidence: 99%

See 1 more Smart Citation

The Physical Chemistry of Copper Smelting Slags—A Review

Mackey¹

1982

Canadian Metallurgical Quarterly

104

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A review is presented of the more important studies on copper smelting slags carried out since about the mid-1960s. This includes work on physical properties, constitution of slags, slag chemistry, control of metal losses, distribution of minor elements including Pb, Zn, Cd, Sn, Bi, As, Sb, Ni, Co, Se, Te, In, Pd, Pt, Au and Ag in reverberatory, continuous smelting, converting and refining slags. Some comments are made concerning the rate of fluxing and the need for good slag making in copper smelter operations.Copper losses and the solubility of various metals in slags are examined. Laboratory and operating data for the distribution of elements between matte, metal and slag for all the important smelting processes today are presented and the application of a recent physico-chemical model is described. The behaviour of metals which are slagged in the smelter is discussed and the pathway of metals such as cobalt, nickel and lead in smelting circuits is examined. A new thermodynamic model for slag cleaning by reduction is briefly described.Reswne-L'article presente un compte-rendu des plus importantes etudes ayant ete effectuees sur les scories de fusion du cuivre depuis Ie milieu des annees soixante. Ceci comprend les proprietes physiques, la composition des scories, la chimie des scories, Ie controle des pertes en metal, la distribution des elements secondaires y compris Pb, Zn, Cd, Sn, Bi, As, Sb, Ni, Co, Se, Te, In, Pd, Pt, Au et Ag das les scories de reverbere, de la fusion continue, du convertissage et du raffinage. L'auteur ajoute quelques commentaires sur Ie taux de fluxage et sur la necessite de contr61er la composition des scories en ce qui concerne la fusion pour matte.Les pertes en cuivre et Ia solubilite de divers metaux dans les scories sont egalement examinees. Les donnees experiment ales et operationnelles pour la distribution des elements entre la matte, Ie metal et les scories sont presentees pour to us les procedes de fusion importants ayant cours aujourd'hui. L'auteur decrit egalement l'application d'un modele physico-chimique recent. Le comportement des metaux faisant partie des scories de fusion dans Ie four est discute et Ie parcours de metaux tels que Ie cobalt, Ie nickel et Ie plomb est etudie dans les circuits de fusion. L'auteur decrit brievement un nouveau modele thermodynamique pour Ie nettoyage des scories par reduction.* The "standard" slag used by Higgins and Jones [62J analysed 41.5 % Si02, 26.6 % FeO, 9.6 % A1203, 22.3 % CaO.

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