Journals / Konya Journal of Engineering Sciences / 2023 / Cilt: 11 Sayı: 3

Effect of Clay Minerals on the Flotation Performance of Coal and Mean Bubble Size

KİL MİNERALLERİNİN KÖMÜRÜN FLOTASYON PERFORMANSINA VE ORTALAMA KABARCIK BOYUTUNA ETKİSİ

Pages
635–644
Publication Date
2023-09-01
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results obtained from this study will form a basic infrastructure to understand the flotation behavior of coals containing clay minerals as gangue and to offer solutions.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Flotation is one of the most effective methods used in the enrichment of fine sized coals.
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Key Findings & Data:In this study, the effects of clay minerals (kaolinite and montmorillonite) and flotation reagents on the flotation performance and mean bubble size of Tunçbilek lignite coal were investigated.
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Conclusion & Impact:The results obtained from this study will form a basic infrastructure to understand the flotation behavior of coals containing clay minerals as gangue and to offer solutions.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Kömür Flotasyonu · Kil Mineralleri · Ortalama Kabarcık Boyutu

Abstract

Flotation is one of the most effective methods used in the enrichment of fine sized coals. However, the presence of clay minerals as gangue minerals in coal affects the flotation process negatively. In this study, the effects of clay minerals (kaolinite and montmorillonite) and flotation reagents on the flotation performance and mean bubble size of Tunçbilek lignite coal were investigated. In the experimental studies; sodium silicate was used as depressant, kerosene was used as collector, methyl isobutyl carbinol (MIBC) and Dowfroth 250 were used as frother. Clay type and amount, depressant amount and frother type and amount were the experimental parameters studied. In experimental studies in which the effect of depressant amount and clay content was determined, combustible recovery values were obtained in the range of 40-55% for samples containing kaolinite and 30-47% for samples containing montmorillonite. Better results were obtained with Dowfroth 250 as the frother, and the coal sample containing montmorillonite caused larger bubbles to form than the coal sample containing kaolinite. The results obtained from this study will form a basic infrastructure to understand the flotation behavior of coals containing clay minerals as gangue and to offer solutions.

Özet

Flotasyon, ince boyutlu kömürlerin zenginleştirilmesinde kullanılan en etkili yöntemlerdendir. Bununla birlikte, kömürün yan kayaç olarak kil minerallerini bulundurması flotasyon işlemini olumsuz etkilemektedir. Bu çalışmada kil minerallerinin (kaolin ve montmorillonit) ve flotasyon reaktiflerinin Tunçbilek linyit kömürünün flotasyon performansına ve ortalama kabarcık boyutuna etkisi araştırılmıştır. Deneysel çalışmalarda; bastırıcı olarak sodyum silikat, toplayıcı olarak gaz yağı kullanılırken, köpürtücü olarak ise metil izobütil karbinol (MIBC) ve Dowfroth 250 kullanılmıştır. Kil türü ve miktarı, bastırıcı miktarı ve köpürtücü türü ve miktarı çalışılan deneysel parametrelerdir. Bastırıcı miktarı ve kil içeriğinin etkisinin belirlendiği deneysel çalışmalarda, kaolin içerikli numunelerde %40-55, montmorillonit içerikli numunelerde ise %30-47 aralığında yanabilir verim değerleri elde edilmiştir. Köpürtücü olarak Dowfroth 250 ile daha iyi sonuçlar elde edilmiş ve montmorillonit içeren kömür numunesi, kaolin içeren kömür numunesine göre daha büyük kabarcıklar oluşmasına neden olmuştur. Bu çalışmadan elde edilen sonuçlar yan kayaç olarak kil bulunduran kömürlerin flotasyon davranışlarının anlaşılabilmesi ve çözüm önerileri sunulabilmesi için temel bir altyapı oluşturacaktır.

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Cite This Article

ÖNEN, V., ÇAĞLAR, A. Z., TANER, H. A. (2023). Effect of Clay Minerals on the Flotation Performance of Coal and Mean Bubble Size. Konya Journal of Engineering Sciences, Cilt: 11 Sayı: 3, 635–644. https://ajindex.com/articles/964584

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