Manyezit triyaj atığı geri dönüşümü için optik ayıklama teknolojisi: Kirlilikleri azaltmak için iki aşamalı bir işlem

Yıl 2025, Cilt: 14 Sayı: 4, 1604 - 1611, 15.10.2025

Kemal Bilir

Öz

Bu çalışmada, triyaj atıklarından manyezitin geri kazanılmasında sensör tabanlı optik ayıklama teknolojisinin etkinliği değerlendirilmiştir. Eskişehir bölgesindeki bir manyezit tesisinin atık sahasının farklı bölgelerinden, %45,9 MgO, %4,7 Fe₂O₃ ve %10,6 SiO₂ içeren yaklaşık bir ton manyezit atık örneği alınmıştır. İki boyut fraksiyonu (-35+15 mm ve -15+8 mm) manyetik ayırma, yıkama ve iki aşamalı optik ayıklamaya tabi tutulmuştur. -35+15 mm fraksiyonu için safsızlık seviyeleri %9,94'ten %1,91 SiO₂'ye, %1,22'den %0,15 Fe₂O₃'e ve %2,41'den %0,81 CaO'a düşürülerek %65,12 konsantre verimi elde edilmiştir. -15+8 mm fraksiyonu da %72 konsantre verimi ile benzer iyileştirmeler göstermiştir. Sonuçlar, optik ayıklama teknolojisinin, atık değerlendirmesi yoluyla ekonomik faydalar sağlamanın yanı sıra sürdürülebilir madencilik uygulamalarını ve döngüsel ekonomi prensiplerini destekleyerek, manyezit atıklarını kabul edilebilir kalite seviyelerine etkili bir şekilde yükseltebileceğini göstermektedir.

Anahtar Kelimeler

Manyezit , Optik ayıklama , Manyezit geri kazanımı , Triyaj atığı , Kirlilik azaltımı

Optical sorting technology for magnesite triage waste recycling: A two-stage process for reducing impurities

Öz

This study evaluated the effectiveness of sensor-based optical sorting technology for recovering magnesite from triage waste. Approximately one ton of magnesite waste samples, containing 45.9% MgO, 4.7% Fe₂O₃, and 10.6% SiO₂, were sampled from different regions of a waste site at a magnesite plant in the Eskişehir region. Two size fractions (-35+15 mm and -15+8 mm) were subjected to magnetic separation, washing, and two-stage optical sorting. For the -35+15 mm fraction, impurity levels were reduced from 9.94% to 1.91% SiO₂, 1.22% to 0.15% Fe₂O₃, and 2.41% to 0.81% CaO, achieving 65.12% concentrate yield. The -15+8 mm fraction showed similar improvements with a 72% concentrate yield. Results demonstrate that optical sorting technology can effectively upgrade magnesite waste to acceptable quality levels, supporting sustainable mining practices and circular economy principles while providing economic benefits through waste evaluation.

Anahtar Kelimeler

Magnesite , Optical sorting , Magnesite recovery , Triage waste , Impurity reduction

Kaynakça

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