Pirotinli Demir Cevherinin Zenginleştirilmesi

Öz

Çalışmada yüksek ve düşük pirotin içeren iki farklı manyetit cevherinin zenginleştirme olanakları incelenmiştir. Pirotin yüksek kükürt içeriği sebebiyle demir cevheri konsantrelerinde istenmemektedir. Bu nedenle düşük kükürt içeriğine sahip ürün elde etmek için manyetik zenginleştirme ve flotasyon işlemleri uygulanmıştır. Manyetik zenginleştirmede elde edilen konsantrelere uygulanan flotasyon işleminde yüksek ve düşük pirotinli cevherlerde kükürt oranı sırasıyla %0,46 ve %0,06’ya kadar inerken metal kazanma verimi %88,16 ve %95,09 olarak bulunmuştur. Her iki konsantre içinde demir tenörü %65’in üzerinde olup satılabilir manyetit konsantresi özelliğini karşılamaktadır.

Anahtar Kelimeler

• Manyetit
• Pirotin
• Flotasyon
• Manyetik Zenginleştirme

Beneficiation of Magnetite - Pyrrhotite Ore

Öz

In the study, beneficiation of two different magnetite ores containing high and low pyrrhotite content was examined. Pyrrhotite is and undesired mineral in iron ore concentrates due to its high sulfur content. Therefore, magnetic beneficiation and flotation processes were applied to obtain products with low sulfur content. In the flotation process applied to the concentrates obtained in magnetic enrichment, the sulfur content in high and low pyrrhotite ores decreased to 0.46% and 0.06%, respectively, while the metal recovery efficiency was found to be 88.16% and 95.09%. The iron content in both concentrates is over 65% and meets the salable imagnetit concentration specifications.

Anahtar Kelimeler

• Magnetite
• Pyrrhotite
• Flotation
• Magnetic Separation

Kaynakça

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