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Titolo:
Sulfur injection to remove copper from recycled lead
Autore:
Plascencia-Barrera, G; Romero-Serrano, A; Morales, RD; Hallen-Lopez, M; Chavez-Alcala, F;
Indirizzi:
IPN, ESIQIE, Dept Met, Mexico City 07300, DF, Mexico IPN Mexico City DF Mexico 07300 , Dept Met, Mexico City 07300, DF, Mexico
Titolo Testata:
CANADIAN METALLURGICAL QUARTERLY
fascicolo: 3, volume: 40, anno: 2001,
pagine: 309 - 316
SICI:
0008-4433(200107)40:3<309:SITRCF>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Plascencia-Barrera, G IPN, ESIQIE, Dept Met, A Postal 75-874, Mexico City 07300, DF, Mexico IPN A Postal 75-874 Mexico City DF Mexico 07300 xico
Citazione:
G. Plascencia-Barrera et al., "Sulfur injection to remove copper from recycled lead", CAN METAL Q, 40(3), 2001, pp. 309-316

Abstract

This work is focussed on lead decopperising by two techniques: conventional top addition of sulfur and injection of sulfur powder. It is found that the first method proceeds under equilibrium conditions and the second one depends on kinetic considerations. Experiments were carried out using 15 kg lead baths at two temperatures, 340 and 380 degreesC. The carrying gas used for the injection trials was nitrogen with flow rates of 6.3 and 18.6 L min(-1). The results show that the decopperising process is more efficient at temperatures close to the melting point of lead for the sulfur top addition process whereas high temperatures produce better copper removal for the injection of sulfur powder. Sulfurinjection with the higher nitrogen flow rate (18.6 L min(-1)) produced higher decopperising rates. Thermodynamic and kinetic models are used to simulate this lead refining process.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 11:38:53