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Titolo:
Review of hydrometallurgical recovery of zinc from industrial wastes
Autore:
Jha, MK; Kumar, V; Singh, RJ;
Indirizzi:
Natl Met Lab, Jamshedpur 831007, Bihar, India Natl Met Lab Jamshedpur Bihar India 831007 amshedpur 831007, Bihar, India
Titolo Testata:
RESOURCES CONSERVATION AND RECYCLING
fascicolo: 1, volume: 33, anno: 2001,
pagine: 1 - 22
SICI:
0921-3449(200108)33:1<1:ROHROZ>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
CENIM-LNETI PROCESS; FLUE-DUST; ACID; RESIDUES; HYDRO;
Keywords:
zinc recovery; secondaries and wastes containing zinc; hydrometallurgical processing; leaching; solvent extraction;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Engineering, Computing & Technology
Citazioni:
131
Recensione:
Indirizzi per estratti:
Indirizzo: Kumar, V Natl Met Lab, Jamshedpur 831007, Bihar, India Natl Met Lab Jamshedpur Bihar India 831007 831007, Bihar, India
Citazione:
M.K. Jha et al., "Review of hydrometallurgical recovery of zinc from industrial wastes", RESOUR CON, 33(1), 2001, pp. 1-22

Abstract

Zinc containing wastes/secondaries viz. zinc ash, dress, flue dusts, sludge, residue etc, are generated in various chemical and metallurgical industries. The materials contain different level of impurities depending on the source. The hydrometallurgical processing is effective and flexible for treating such materials as it can control the different level of impurities. Depending on the nature and composition of the secondaries, a suitable lixiviant could be selected to dissolve the desired metals leaving gangue in the residue. In the present paper, the hydrometallurgical processes have been described for the recovery of zinc from the secondaries using sulphuric acid, hydrochloric acid, ammoniacal solution and sodium hydroxide etc. as lixiviants. The leach solution thus obtained has been purified with respect to dissolved impurities using precipitation, ion exchange or solvent extractionmethod. The metal or salt is produced from the purified solution by electrolysis or crystallization. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 07:32:31