Removal of sulfate ions from process water by ion exchange resins kk

ÖZTÜRK Y., EKMEKÇİ Z.

MINERALS ENGINEERING, vol.159, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 159
  • Publication Date: 2020
  • Doi Number: 10.1016/j.mineng.2020.106613
  • Journal Name: MINERALS ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, CAB Abstracts, Chemical Abstracts Core, Communication Abstracts, Compendex, INSPEC, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Hacettepe University Affiliated: Yes

Abstract

High concentrations of sulfate and thiosulfate ions in the process water may cause significant problems in the flotation of sulfide ores through changing the pulp chemistry, surface chemistry of sulfide minerals and froth stability. In addition to that formation of colloidal gypsum and scaling problems in process plants are observed when lime is used for pH regulation. Therefore, reducing sulfate and thiosulfate ion concentration in the process water is required for minimizing gypsum formation and stabilizing pulp chemistry. In this study, strong base ion exchange resins; Amberlite IRA-400 and Dowex 1X2 were used to reduce the amount of sulfate and thiosulfate in the process water.