Synthesis of zeolites from coal fly ash using mine waters

Nicholas M. Musyoka, Leslie F. Petrik, Ojo O. Fatoba, Eric Hums

Research output: Journal PublicationArticlepeer-review

72 Citations (Scopus)


In this study mine waters obtained from coal mining operations in South Africa were used as a substitute for pure water during the synthesis of zeolites from South African coal fly ash. Procedures that had been optimized to produce single phase zeolite Na-P1 and X using pure water were employed independently. The use of circumneutral mine water resulted in similar quality zeolite Na-P1 and X whereas the use of acidic mine drainage led to the formation of a single phase hydroxysodalite zeolite. Since these two wastes (fly ash and mine waters) are found in close proximity to each other, this study demonstrates that they can be used to ameliorate each other and at the same time produce saleable zeolitic products that can be used to offset their costs of disposal and treatment.

Original languageEnglish
Pages (from-to)9-15
Number of pages7
JournalMinerals Engineering
Publication statusPublished - 2013
Externally publishedYes


  • Fly ash
  • Mine water
  • Zeolite Na-P1
  • Zeolite X

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Chemistry (all)
  • Geotechnical Engineering and Engineering Geology
  • Mechanical Engineering


Dive into the research topics of 'Synthesis of zeolites from coal fly ash using mine waters'. Together they form a unique fingerprint.

Cite this