Improved fine coal dewatering by ultrasonic pretreatment and dewatering aids

Firat Burat*, Ayhan A. Sirkeci, Güven Önal

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

The effects of ultrasonic pretreatment and surface active reagents to improve the efficiency of fine coal dewatering in high frequency vibrating screen have been carried out. The results showed that hydrophobic surface active reagents increased the contact angle and decreased surface tension of the solution reducing the moisture content of fine coal particles. Polyethylene glycol 400 monooleate (PEG-400) was found to be the most effective reagent. Furthermore, when ultrasonic pretreatment was introduced to the fine coal slurry, the residual total moisture content of the fine coal was further decreased.

Original languageEnglish
Pages (from-to)129-135
Number of pages7
JournalMineral Processing and Extractive Metallurgy Review
Volume36
Issue number2
DOIs
Publication statusPublished - 1 Mar 2015

Bibliographical note

Publisher Copyright:
© Taylor & Francis Group, LLC.

Keywords

  • Coal
  • Dewatering
  • Surface active reagents
  • Surface properties
  • Ultrasonic

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