Fabrication of Glazed Porcelain Using Glass Industry by Product Sodium Feldspar

Year 2018, Volume: 2 Issue: 2, 104 - 117, 31.12.2018

Volkan Eskizeybek , Bertan Büyükçıngıl

Abstract

Sodium feldspar (Na₂O.Al₂O₃.6SiO₂)
(SF) is one of the most important melting materials used in glass fabrication
due to its low iron ratios. On the other hand, SF mineral used by glass
industry is subjected to classification process in terms of quality before use
which are divided into two grades as A and B. The A quality products are
preferred in glass production, while B quality product is considered as waste
due to its inadequate physical and chemical properties. To produce glazed
porcelain with the high sintering quality, SF minerals are introduced wt.30-55%
into the matrix by the ceramics industry. However, SF minerals used in the
glazed porcelain fabrication are only supplied from a few mineral resources in
certain regions Turkey. Due to the increasing demands of SF with the increasing
production rates, the ceramic industry looks for other SF sources to produce
glazed porcelain with lower costs without compromising on quality. The aim of
this study is to utilize the waste SF by-products to produce glazed porcelain
tiles and to reduce production costs without sacrificing its quality.

Keywords

Sodium feldspar, Glazed porcelain, water absorption, Recycling of waste minerals

Fabrication of Glazed Porcelain Using Glass Industry by Product Sodium Feldspar

Abstract

Sodium feldspar (Na₂O.Al₂O₃.6SiO₂)
(SF) is one of the most important melting materials used in glass fabrication
due to its low iron ratios. On the other hand, SF mineral used by glass
industry is subjected to classification process in terms of quality before use
which are divided into two grades as A and B. The A quality products are
preferred in glass production, while B quality product is considered as waste
due to its inadequate physical and chemical properties. To produce glazed
porcelain with the high sintering quality, SF minerals are introduced wt.30-55%
into the matrix by the ceramics industry. However, SF minerals used in the
glazed porcelain fabrication are only supplied from a few mineral resources in
certain regions Turkey. Due to the increasing demands of SF with the increasing
production rates, the ceramic industry looks for other SF sources to produce
glazed porcelain with lower costs without compromising on quality. The aim of
this study is to utilize the waste SF by-products to produce glazed porcelain
tiles and to reduce production costs without sacrificing its quality.

Keywords

Sodium feldspar, Glazed porcelain, water absorption, Recycling of waste minerals

References

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