LEACHING OF ZINC AND MANGANESE FROM SPENT ZINC–CARBON BATTERIES IN ACETIC ACID SOLUTION

Öz

In this study, extraction of Zn and Mn from spent zinc–carbon batteries in acetic acid solution was studied. Leaching tests were carried out to evaluate the leaching behaviour of Zn and Mn under different conditions. Experimental parameters used were; stirring speed, acetic acid concentration, temperature and particle size. The zinc and manganese extraction were obtained as 83.59% and 52.47%, respectively. The maximum Zn and Mn extraction were obtained in 240 min of leaching time with the following conditions; 600 rpm stirring speed, 2.0 M acetic acid concentration, -53 μm particle size and 60°C leaching temperature.

Anahtar Kelimeler

• Leaching
• Zn–C batteries
• Zinc
• Manganese

Asetik Asit Çözeltisinde Atık Çinko–Karbon Pillerinden Mangan ve Çinkonun Liçi

Öz

Bu çalışmada, asetik asit içerisinde atık çinko–karbon pillerinden Zn ve Mn’nin ekstraksiyonu çalışılmıştır. Farklı koşullar altında Zn ve Mn çözünme davranışlarını araştırmak için liç testleri yapılmıştır. Deneylerde kullanılan parametreler; karıştırma hızı, asetik asit derişimi, sıcaklık ve tane boyutudur. Çinko ve manganın çözünme verimi sırasıyla %83.59 ve %52.47 olarak bulunmuştur. 600 dev/dk karıştırma hızında, 2 M asetik asit derişiminde, -53 μm tane boyutunda, 60°C liç sıcaklığında ve 240 dakikalık liç süresinde en yüksek Zn ve Mn çözünme verimi elde edilmiştir.

Anahtar Kelimeler

• Liç
• Zn–C piller
• Çinko
• Mangan

Kaynakça

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