Solvent Extraction of Zinc from Acidic Solution Obtained from Cold Purification Filter Cake of Angouran Mine Concentrate Using D2EHPA

Balesini, A.A.; Razavizadeh, H.; Zakeri, A.

Solvent Extraction of Zinc from Acidic Solution Obtained from Cold Purification Filter Cake of Angouran Mine Concentrate Using D2EHPA

Document Type : Full article

Authors

A.A. Balesini

H. Razavizadeh

A. Zakeri

Islamic Azad University of Miyaneh Branch, Miyaneh, Iran Department of Materials and Metallurgy Engineering, Iran University of Science and Technology, Tehran, Iran

Abstract

Filter cakes obtained in the conventional acid leaching of zinc concentrate are considered a major secondary source for zinc. Solvent extraction may be utilized for the selective separation of zinc from other elements in hydrometallurgical processing of such resources. In the present work, extraction of zinc from the solution obtained from sulfuric acid leaching of cold purification filter cake of Angouran concentrate were performed by using D2EHPA as the extractant. The effects of extractant concentration diluted in Kerosene, solution pH and phase ratio (O:A) were investigated and their optimized values were obtained to be 40 vol.%, 2.5-3 and 4:1, respectively. Under these conditions, 98.8% of Zn could be extracted.

Keywords

Zinc Hydrometallurgy

Purification

Filter Cake

D2EHPA