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Journal of Mining and Metallurgy A: Mining
2016, vol. 52, br. 1, str. 45-56
jezik rada: engleski
vrsta rada: članak
doi:10.5937/JMMA1601045B

Creative Commons License 4.0
Luženje ruda bakra sa niskim sadržajem - studija slučaja za ležište 'Kraku Bugaresku-Cementacija' (Istočna Srbija)
Univerzitet u Beogradu, Tehnički fakultet u Boru

Projekat

Neki aspekti rastvaranja metala i prirodnih minerala (MPNTR - 172031)
Implementacija savremenijih tehnicko-tehnoloških i ekoloških rešenja u postojecim proizvodnim sistemima Rudnika Bakra Bor i Rudnika Bakra Majdanpek (MPNTR - 33007)

Sažetak

Ovaj rad se bavi istraživanjem luženja u koloni ruda sa niskim sadržajem bakra iz rudnika Cerovo, Srbija (približni sadržaj Cu u rudi varira u opsegu 0.2 - 0.3 % sa >10 % bakra u formi oksidnih minerala). Eksperimenti luženja izvedeni su primenom rastvora sumporne kiseline, pri čemu je konetika luženja ispitivana uzimajući u obzir koncentraciju kiseline i odnos čvrste prema tečnoj fazi. Koncentracija bakra u lužnom rastvoru varirala je od 0.80 do 1.75 g dm-3. Ukupno iskorišćenje Cu variralo je od 30 do 56 % pri čemu je iskorišćenje oksidnih minerala bakra bilo u rasponu od 67 do 100 %. Dodatno, sa povećanjem količine tečne faze raste iskorišćenje bakra, a oksidni minerali bakra su u potpunosti izluženi. Pored jona bakra postignute su i značajne koncentracije feritnih jona u lužnom rastvoru. Ove koncentracije su bile dovoljno visoke za primenu solventne ekstrakcije ili tehnika jonske izmene ili oboje za dalji tretman lužnog rastvora.

Ključne reči

siromašne rude; minerali bakra; luženje u koloni

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