Wetting behavior of magnesite and dolomite surfaces

Gence N.

APPLIED SURFACE SCIENCE, vol.252, no.10, pp.3744-3750, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 252 Issue: 10
  • Publication Date: 2006
  • Doi Number: 10.1016/j.apsusc.2005.05.053
  • Journal Name: APPLIED SURFACE SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.3744-3750
  • Keywords: wetting, magnesite, dolomite, contact angle, sodium oleate, sodium silicate, CONTACT-ANGLE MEASUREMENTS, WETTABILITY, PREDICTION, CARBONATES, ADSORPTION, FLOTATION
  • Anadolu University Affiliated: No

Abstract

Magnesite and dolomite are salt-type minerals that show similar chemical composition and flotation behavior due to same crystal structure, and sparingly soluble nature. The surface properties of minerals play a major role in determining their separation from each other in processes such as flotation. During flotation process, selectivity problem arises between magnesite and associated gangue minerals such as dolomite. There is a close relationship between floatability of minerals and their contact angles. Therefore, surface hydrophobicity of magnesite and dolomite minerals was investigated by contact angle measurements in the absence and presence of flotation reagents.