Anod Çamurundaki Altının Sulu Ortamda Klorinasyonu Esnasında Çinko Liçinginin Optimizasyonu

Bakırı giderilmiş anod çamurundaki altının sulu ortamda klorinasyonuna ait optimizasyonu esnasında çinkonun liçing davranışı incelenmiştir. Çalışmada, Taguchi deneysel tasarımı kullanılmış olup deney planı olarak L9(34) ortogonal dizisi belirlenmiştir. Ön denemeler ışığı altında parametre olarak; reaksiyon sıcaklığı, karıştırma hızı, asit konsantrasyonu ve katı-sıvı oranı seçilmiştir. Çinkonun çözündürülmesine ait optimum şartlar şöyle tespit edilmiştir: reaksiyon sıcaklığı 40 °C, reaksiyon süresi 2700 s, karıştırma hızı 420 dak-1 ve katı-sıvı oranı 0.1 g.mL-1. Deneysel sonuçlara göre, optimum liç koşulları altında çinko ekstraksiyonunun % 71,8 olduğu gözlenmiştir.

Anahtar Kelimeler:

Bakırı Giderilmiş Anod Çamuru, Klorinasyon, Çinko Liçingi, Taguchi Deney Tasarımı

Optimization of Zinc Leaching During Aqueous Chlorination of Gold in Anode Slime

The leaching behavior of zinc was investigated during the optimization of the chlorination of gold in the decopperized anode slime in aqueous medium. In the study, Taguchi experimental design was used and the L9(34) orthogonal array was determined as the experimental plan. As a parameter under the light of preliminary tests; reaction temperature, stirring speed, acid concentration and solid-liquid ratio were selected. The optimum conditions for dissolution of zinc were determined as follows: reaction temperature 40 °C, reaction time 2700 s, stirring speed 420 min-1 and solid-liquid ratio 0.1 g.mL-1. According to the experimental results, Zinc extraction was observed to be 71.8 % under optimum leaching conditions.

Keywords:

Decopperized Anode Slime, Chlorination, Zinc Leaching, Taguchi Experimental Design,

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