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PRODUCTION OF LIGHTWEIGHT AGGREGATES FROM DIFFERENT TYPES OF BORON WASTES

Yıl 2009, Cilt: 9 Sayı: 3, 245 - 250, 01.12.2009

Öz

Four boron wastes (BW), named as Sieve (SBW), Dewatering (DBW), Thickener (TBW) and
Mixture (MBW) waste, from Kirka plant (Turkey) were investigated for the formation of Artificial
Lightweight Aggregates (LWA). The characterization involved chemical, mineralogical and thermal
analyses. The bloating behavior was examined by heating microscopy. SBW and DBW expanded in
two stages, at 300°C approximately and subsequently at 550°C with concurrent formation of liquid
phase. However, at 650-700°C there is excessive liquid phase formed resulting in large, non uniform
porosity of irregular shape. On the contrary, in the case of TBW and MBW no noticeable expansion or
glassy surface was formed. An optimization route, involved the formation of a mixture with 20wt%
clay, 40wt% SBW, 40wt% DBW and one with 20wt% clay, 35wt% SBW, 35wt% DBW, 10wt%
quartz sand. The raw aggregates were fired in a rotating crucible at 650°C, 700°C, 710°C and 760°C
for 2-5 min. It was observed that the clay addition leads to better plasticity and cohesion between the
particles whereas the quartz addition shifts the softening point 50°C higher. Water absorption was
56.8-60.5%, apparent specific gravity 2.3-2.4g/cm3
and bulk density 0.9-1.1g/cm3
. The analysis of
microstructure with electron microscopy revealed a glassy phase matrix and an extended formation of
both open and closed pores. The results indicate that SBW and DBW boron wastes can be utilized in
LWA production. 

Kaynakça

  • E. G. Ehlers, The Mechanism of Lightweight Aggregate Formation, Ceramic Buletin, Vol. 37, No.2, 95-99,1958
  • Su-Chen Huang et al, Production of lightweight aggregates from mining residues, heavy metal sludge, andincinerator fly ash, J. Hazard. Mater. 144, 52-58, 2007
  • M. Aineto, A. Acosta, J. M. Rincon, M. Romero, Production of Lightweight Aggregates from Coal Gasification Fly Ash and Slag, Submitted for consideration in the 2005 World of Coal Ash 11-15, Lexington, Kentucky, USA, 2005
  • I. Anagnostopoulos, V. Stivanakis, Utilization of lignite power residues for the production of lightweight aggregates, J. Hazard. Mater. (2008), doi:10.1016/j.jhazmat.2008.06.125
  • H. R. Blank, Red Mud from Alumina Plants as a Possible Source of Synthetic Aggregate, Journal of Testing and Evaluation, JTEVA, Vol. 4, No. 5, 355-358, 1976
  • V. Ducman, A. Mladenovič, J. S. Šuput, Lightweight aggregate based on waste glass and its alkali-silica reactivity, Cem. Conr. Res. 32, 223-226, 2002
  • R. de Gennaro, P. Cappelletti, G. Cerri, M. de Gennaro, M. Dondi, A. Langella, Zeolitic tuffs as raw materials for lightweight aggregates, App. Clay Sci. 25, 71-81, 2004
  • http://www.etimaden.gov.tr
  • P. M. Mobbs, The Mineral Industry of Turkey, U.S. Geological Survey Minerals Yearbook-2004.
  • European Commission, Reference Document on Best Available Techniques for Management of Tailings and Waste-Rock in Mining Activities, Chapter 3, July 2004.
  • A. Ekmekyapar, A. Baysar, A. Künkül, Dehydration Kinetics of Tincal and Borax by Thermal Analysis, Ind. Eng. Chem. Res. 36, 3487-3490, 1997
  • I. Waclawska, Thermal decomposition of borax, J. Therm. Anal., 43, 261-269, 1995

PRODUCTION OF LIGHTWEIGHT AGGREGATES FROM DIFFERENT TYPES OF BORON WASTES

Yıl 2009, Cilt: 9 Sayı: 3, 245 - 250, 01.12.2009

Öz

Four boron wastes (BW), named as Sieve (SBW), Dewatering (DBW), Thickener (TBW) and
Mixture (MBW) waste, from Kirka plant (Turkey) were investigated for the formation of Artificial
Lightweight Aggregates (LWA). The characterization involved chemical, mineralogical and thermal
analyses. The bloating behavior was examined by heating microscopy. SBW and DBW expanded in
two stages, at 300°C approximately and subsequently at 550°C with concurrent formation of liquid
phase. However, at 650-700°C there is excessive liquid phase formed resulting in large, non uniform
porosity of irregular shape. On the contrary, in the case of TBW and MBW no noticeable expansion or
glassy surface was formed. An optimization route, involved the formation of a mixture with 20wt%
clay, 40wt% SBW, 40wt% DBW and one with 20wt% clay, 35wt% SBW, 35wt% DBW, 10wt%
quartz sand. The raw aggregates were fired in a rotating crucible at 650°C, 700°C, 710°C and 760°C
for 2-5 min. It was observed that the clay addition leads to better plasticity and cohesion between the
particles whereas the quartz addition shifts the softening point 50°C higher. Water absorption was
56.8-60.5%, apparent specific gravity 2.3-2.4g/cm3
and bulk density 0.9-1.1g/cm3
. The analysis of
microstructure with electron microscopy revealed a glassy phase matrix and an extended formation of
both open and closed pores. The results indicate that SBW and DBW boron wastes can be utilized in
LWA production. 

Kaynakça

  • E. G. Ehlers, The Mechanism of Lightweight Aggregate Formation, Ceramic Buletin, Vol. 37, No.2, 95-99,1958
  • Su-Chen Huang et al, Production of lightweight aggregates from mining residues, heavy metal sludge, andincinerator fly ash, J. Hazard. Mater. 144, 52-58, 2007
  • M. Aineto, A. Acosta, J. M. Rincon, M. Romero, Production of Lightweight Aggregates from Coal Gasification Fly Ash and Slag, Submitted for consideration in the 2005 World of Coal Ash 11-15, Lexington, Kentucky, USA, 2005
  • I. Anagnostopoulos, V. Stivanakis, Utilization of lignite power residues for the production of lightweight aggregates, J. Hazard. Mater. (2008), doi:10.1016/j.jhazmat.2008.06.125
  • H. R. Blank, Red Mud from Alumina Plants as a Possible Source of Synthetic Aggregate, Journal of Testing and Evaluation, JTEVA, Vol. 4, No. 5, 355-358, 1976
  • V. Ducman, A. Mladenovič, J. S. Šuput, Lightweight aggregate based on waste glass and its alkali-silica reactivity, Cem. Conr. Res. 32, 223-226, 2002
  • R. de Gennaro, P. Cappelletti, G. Cerri, M. de Gennaro, M. Dondi, A. Langella, Zeolitic tuffs as raw materials for lightweight aggregates, App. Clay Sci. 25, 71-81, 2004
  • http://www.etimaden.gov.tr
  • P. M. Mobbs, The Mineral Industry of Turkey, U.S. Geological Survey Minerals Yearbook-2004.
  • European Commission, Reference Document on Best Available Techniques for Management of Tailings and Waste-Rock in Mining Activities, Chapter 3, July 2004.
  • A. Ekmekyapar, A. Baysar, A. Künkül, Dehydration Kinetics of Tincal and Borax by Thermal Analysis, Ind. Eng. Chem. Res. 36, 3487-3490, 1997
  • I. Waclawska, Thermal decomposition of borax, J. Therm. Anal., 43, 261-269, 1995
Toplam 12 adet kaynakça vardır.

Ayrıntılar

Birincil Dil İngilizce
Konular Mühendislik
Bölüm Makaleler
Yazarlar

Taner Kavas Bu kişi benim

Angeliki Christogerou Bu kişi benim

Yiannis Pontikes Bu kişi benim

Tuğba Tunç Bu kişi benim

George N. Angelopoulos Bu kişi benim

Yayımlanma Tarihi 1 Aralık 2009
Gönderilme Tarihi 8 Ağustos 2015
Yayımlandığı Sayı Yıl 2009 Cilt: 9 Sayı: 3

Kaynak Göster

APA Kavas, T., Christogerou, A., Pontikes, Y., Tunç, T., vd. (2009). PRODUCTION OF LIGHTWEIGHT AGGREGATES FROM DIFFERENT TYPES OF BORON WASTES. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi, 9(3), 245-250.
AMA Kavas T, Christogerou A, Pontikes Y, Tunç T, Angelopoulos GN. PRODUCTION OF LIGHTWEIGHT AGGREGATES FROM DIFFERENT TYPES OF BORON WASTES. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi. Aralık 2009;9(3):245-250.
Chicago Kavas, Taner, Angeliki Christogerou, Yiannis Pontikes, Tuğba Tunç, ve George N. Angelopoulos. “PRODUCTION OF LIGHTWEIGHT AGGREGATES FROM DIFFERENT TYPES OF BORON WASTES”. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi 9, sy. 3 (Aralık 2009): 245-50.
EndNote Kavas T, Christogerou A, Pontikes Y, Tunç T, Angelopoulos GN (01 Aralık 2009) PRODUCTION OF LIGHTWEIGHT AGGREGATES FROM DIFFERENT TYPES OF BORON WASTES. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi 9 3 245–250.
IEEE T. Kavas, A. Christogerou, Y. Pontikes, T. Tunç, ve G. N. Angelopoulos, “PRODUCTION OF LIGHTWEIGHT AGGREGATES FROM DIFFERENT TYPES OF BORON WASTES”, Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi, c. 9, sy. 3, ss. 245–250, 2009.
ISNAD Kavas, Taner vd. “PRODUCTION OF LIGHTWEIGHT AGGREGATES FROM DIFFERENT TYPES OF BORON WASTES”. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi 9/3 (Aralık 2009), 245-250.
JAMA Kavas T, Christogerou A, Pontikes Y, Tunç T, Angelopoulos GN. PRODUCTION OF LIGHTWEIGHT AGGREGATES FROM DIFFERENT TYPES OF BORON WASTES. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi. 2009;9:245–250.
MLA Kavas, Taner vd. “PRODUCTION OF LIGHTWEIGHT AGGREGATES FROM DIFFERENT TYPES OF BORON WASTES”. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi, c. 9, sy. 3, 2009, ss. 245-50.
Vancouver Kavas T, Christogerou A, Pontikes Y, Tunç T, Angelopoulos GN. PRODUCTION OF LIGHTWEIGHT AGGREGATES FROM DIFFERENT TYPES OF BORON WASTES. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi. 2009;9(3):245-50.