Effect of pre-agglomeration on the flotation of fine-sized gold particles in the presence of vegetable oils


KILINÇ AKSAY E., AKAR A.

ARABIAN JOURNAL OF GEOSCIENCES, vol.10, no.15, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 10 Issue: 15
  • Publication Date: 2017
  • Doi Number: 10.1007/s12517-017-3113-y
  • Journal Name: ARABIAN JOURNAL OF GEOSCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Fine-sized gold particles, Pre-agglomeration stage, Flotation, Epithermal deposit, Vegetable oils, RECOVERY
  • Dokuz Eylül University Affiliated: Yes

Abstract

In this study, the effect of pre-agglomeration on the flotation of fine-sized gold ore containing 11.3 g/t Au was investigated using olive and soybean oils. Firstly, the ore was floated using only collectors. Secondly, the ore was floated in the presence of vegetable oils and collectors. Finally, the effect of pre-agglomeration with graphite particles was tested again in the presence of two vegetable oils and collectors. In the first case, 93.8% gold recovery with 28.0 g/t Au grade was achieved. The gold recovery decreased to 79.8% with increased gold grade of 46.0 g/t Au when olive oil was used in flotation. Finally, the gold recovery decreased to 75.2% with an increased gold grade of 51.5 g/t when pre-agglomeration step was applied with the use of olive oil. Under the same flotation conditions, pre-agglomeration stage reduced the gold recovery but with increased gold grades.