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PSEUDORUTİLİN ASİDİK LİÇİNE DEMİR İLAVESİ VE MEKANİK AKTİVASYONUN ETKİSİ

EFFECT OF MECHANICAL ACTIVATION AND IRON POWDER ADDITION ON ACIDIC LEACHING OF PSEUDORUTILE

Journal Name:

  • Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi

Publication Year:

  • 2009

Key Words:

Keywords (Original Language):

Author NameUniversity of Author
Abstract (2. Language): 
This study presents the effect of mechanical activation on iron removal from pseudorutile to obtain synthetic rutile by hydrochloric acid leaching with or without iron addition as a reducing agent. Iron and titanium extraction efficiencies in leaching for 3 h without iron addition are 64% and 49%, respectively. After mechanical activation of pseudorutile for 30 min, iron and titanium extraction efficiencies increased to 82% and 62%, respectively. In case of iron addition to leaching step, mechanical activation has no prominent effect on the iron and titanium extractions. On the contrary, most of iron content in pseudorutile dissolved but titanium oxide remains at the solid part. Effect of iron addition to the leaching step was investigated with x-ray diffraction analysis of solid part.
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Abstract (Original Language): 
Bu çalışma, sentetik rutil elde etmek için, redükleyici olarak demir ilaveli veya ilavesiz sülfürik asit liçiyle pseudorutilden demirin giderilmesi üzerine mekanik aktivasyonun etkisini sunmaktadır. Demir ilave edilmeksizin 3 saatlik liç işlemlerinde demir ve titanyum ekstraksiyon verimleri sırasıyla %64 ve %49 dur. Pseudorutilin 30 dakikalık mekanik aktivasyonundan sonra demir ve titanyum ekstraksiyon verimleri sırasıyla %82 ve %62 ye çıkmıştır. Liç kademesine demir ilave edilmesi durumunda, mekanik aktivasyonun demir ve titanyumun ekstraksiyonlarına belirgin bir etkisi olmamıştır. Aksine pseudorutildeki demir içeriğinin çoğu çözünmüş ancak titanyum katı kısımda kalmıştır. Demir ilavesinin liç kademesine etkisi, katı kısmın x-ışını difraksiyon analizi ile incelenmiştir.
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REFERENCES

References: 

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