Utilization of thermal power plant's fly ashes in the pigment production as an alternative raw material source

ÇAKI M., Dogru G.

Silicates Industriels, cilt.72, sa.5-6, ss.79-82, 2007 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 72 Sayı: 5-6
  • Basım Tarihi: 2007
  • Dergi Adı: Silicates Industriels
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.79-82
  • Anahtar Kelimeler: Fly ashes, Solid wastes, Wall and floor tile glazes
  • Anadolu Üniversitesi Adresli: Evet

Özet

At present time, considerable amount of fly ashes is disposed as a result of coal burning in thermal power plants. However, only minor parts of these ashes are evaluated and the rest is damped in stock areas. This is, of course, causing serious environmental problems. In the present study, it was tried to determine whether the fly ashes could be recycled in the way of colouring ceramic glazes and decorating ceramic objects, after being converted into pigment form. For such a purpose, fly ashes, (10-80 wt. %) Cr2O 3 and Al2O3 were used in the pigment production. Subsequent pigments were then employed in transparent wall and matte floor tile glazes, under-glaze decorations of white earthenwares. Finally, it was concluded that fly ash based pigments supplied ivory, brown and green colours in the related applications.