Çinko İçeren Liç Edilmiş Malahit Cevherinden Çinko İyonlarının D2EHPA Ekstraktantı İle Kazanılmasının İncelenmesi

Year 2023, , 343 - 352, 28.03.2023

Mehmet Kayra Karacahan

https://doi.org/10.35234/fumbd.1229853

Abstract

Bu çalışmada, smithsonit cevherinin sülfürik asit çözeltilerinde liç edilmesinden sonra elde edilen gerçek liç çözeltisinden Zn2+'nın kazanımı solvent ekstraksiyon yöntemi uygulanarak incelenmiştir. Organik faz, D2EHPA ve kerosen kullanılarak hazırlanmıştır. Çözeltinin başlangıç pH'ının, ekstraktan derişiminin, karıştırma süresinin ve karıştırma hızının ekstraksiyon işlemi üzerindeki etkileri araştırılmıştır. Ekstraktan derişimi, sulu çözeltinin başlangıç pH'ı, karıştırma hızı ve karıştırma süresindeki artışla ekstraksiyon veriminin arttığı belirlenmiştir. Sulu fazdan organik faza Zn2+ transferini seçimli olarak artmasını sağlamak için sulu fazın başlangıç pH'ı, ekstraktan derişimi, karıştırma süresi ve karıştırma hızı için optimum değerler sırasıyla 3.5, 0.1 mol/L, 10 dk ve ve 500 rpm olarak tespit edilmiştir. Denge eğim analiz yöntemi uygulanarak ekstraksiyon işleminin stokiyometrisi ve mekanizması belirlenmiştir.

Keywords

Solvent ekstraksiyonu, Çinko, Smithsonit, D2EHPA

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