E-ATIKLARDAN METAL KAZANIMINDA ÇÖZÜCÜLERİN VE OKSİTLEYİCİLERİN ETKİLERİ

Yıl 2018, Cilt: 57 Sayı: 4, 233 - 246, 01.12.2018

Ayşenur Tuncuk

https://doi.org/10.30797/madencilik.480060

Öz

Bu çalışma, alternatif çözücüler kullanarak bakır, altın ve gümüşün geri kazanımı için atık

merkezi işlemci ünitelerinin (CPU) liç süreciyle ilgilidir. Fiziksel ön işlemler (boyut küçültme,

ayıklama) ve hidrometalürjik yöntemler kullanılarak yüksek verimlerle metallerin kazanımı

hedeflenmiştir. Kimyasal liç testleri kapsamında 23 tam faktöriyel tasarım testleri yürütülmüştür.

Metal kazanım verimi üzerine reaktif (I2, H2SO4, NH3) derişimi, oksitleyici (H2O2, (NH4)2S2O8)

derişimi, katı/sıvı oranının etkileri, varyans analizi (ANOVA) ile incelenmiştir, etkin değerlere bağlı

modeller oluşturulmuştur. Metal kazanımlarını arttırmak amacıyla iki aşamalı reaktör liçi testleri

yürütülmüştür. Birinci aşamada H2SO4+H2O2 liçi ile %95,60 bakır, ikinci aşamada I2+H2O2 liçi ile

%99,92 altın, %99,81 gümüş kazanım verimleri elde edilmiştir.

Anahtar Kelimeler

Hidrometalürji, E-atık, Metal kazanımı, Atık CPU (merkezi işlemci ünitesi)

Kaynakça

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