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Journals / Anadolu Üniversitesi Bilim ve Teknoloji Dergisi :A-Uygulamalı Bilimler ve Mühendislik / 2002 / Cilt: 3 - Sayı: 1

Microelectrophoretic behaviour of chromite and its flotation

Kromitin mikroelektroforetik davranışı ve flotasyonu

Nermin GENCE
Pages
153–160
Publication Date
2022-10-11
DOI
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AI Summary & Key Takeaways

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

The results of flotation studies show that commercial concentrate containing 48.84 % Cr2O3 is obtainable with an 88.00 % Cr2O3 rate of recovery.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this work, effects of various ions and flotation reagents in chromite-serpentine flotation were investigated with the aim of overcoming the problems encountered in selective flotation of chromite and serpentine.
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Key Findings & Data:Zero point of charge of chromite occurs at pH=6.3 while that of serpentine occurs at pH=5.1 The curves of variation of electrokinetic potential as a function of pH show that H+ ve OH- ions are the potential determining ions for chromite and serpentine.
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Conclusion & Impact:The results of flotation studies show that commercial concentrate containing 48.84 % Cr2O3 is obtainable with an 88.00 % Cr2O3 rate of recovery.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this work, effects of various ions and flotation reagents in chromite-serpentine flotation were investigated with the aim of overcoming the problems encountered in selective flotation of chromite and serpentine. In order to examine the adsorption mechanism of reagents in chromite-serpentine flotation, electrokinetic potential and zero point of charge (z.p.c) of clean (pure) chromite and serpentine were determined and effects of various ions and flo-tation reagents on surface properties of chromite and serpentine were examined. Zero point of charge of chromite occurs at pH=6.3 while that of serpentine occurs at pH=5.1 The curves of variation of electrokinetic potential as a function of pH show that H+ ve OH- ions are the potential determining ions for chromite and serpentine. In the flotation tests, the best results were obtained with mixture of Aero801 and Aero825. The results of flotation studies show that commercial concentrate containing 48.84 % Cr2O3 is obtainable with an 88.00 % Cr2O3 rate of recovery.

Özet

Bu çalışmada, kromit ve serpantinin seçimli olarak ayrılmasını sağlamak için çeşitli iyonlarla flotasyon reaktiflerinin flotasyona etkisi araştırılmıştır. Kromit ve serpantinin flotasyonunda flotasyon reaktiflerinin adsorplanma mekanizmalarını incelemek için, olabildiğince temiz (saf) kromit ve serpantinin elektrokinetik potansiyeli ve sıfır yük noktası (s.y.n) belirlenmiş, çeşitli iyonların ve flotasyon reaktiflerinin kromit ve serpantinin yüzey özellikleri üzerindeki etkileri incelenmiştir. Kromitin sıfır yük noktası pH=6,3'de serpantinin ise pH=5,l'de oluşmaktadır. pH'ın fonksiyonu olarak çizilen elektrokinetik potansiyel değişim eğrisi kromit ve serpantin için potansiyel belirleyici iyonların H+ ve OH- iyonları olduğunu göstermektedir. Flotasyon deneylerinde en iyi sonuçlar Aero801 -Aero825 ile elde edilmiştir. Flotasyon çalışmalarının sonuçları % 48,84 Cr2O3 içeren satılabilir konsantrenin % 88,00 Cr2O3 verimi ile elde edilebileceğini göstermektedir.

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Cite This Article

GENCE, N. (2022). Microelectrophoretic behaviour of chromite and its flotation. Anadolu Üniversitesi Bilim ve Teknoloji Dergisi :A-Uygulamalı Bilimler ve Mühendislik, Cilt: 3 - Sayı: 1, 153–160. https://ajindex.com/articles/438488

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References (14)

  1. Akhtar, S. ve Lai, E.L. (1975). Use of electrophoresis in determining the chemisorption of surfactants on mineral surfaces. AICHE Symposium, ss. 110-117.
  2. Atak, S. (1974). Flotasyon İlkeleri ve Uygulaması. Î.T.Ü., Maden Fakültesi, İstanbul.
  3. Atalay, M.Ü. (1986). Surface properties of chromite and concentration of chromite gravity tailing. Doktora Tezi, Orta Doğu Teknik Üniversitesi,
  4. Ankara.
  5. Boci, S., Kondi, O., Demi, G. ve Mati, S. (19%). Recycle of tailing of the chromium dressing plant of Buiqiza. 6,h International Mineral Processing Symposium, Kuşadası, Türkiye, ss. 107-110.
  6. Cases, J.M., Levitz, R, Poirier, J.E. ve Domme, V. (1985). Adsorption of ionic and nonionic surfactants on mineral solids from aqueous solutions. Advances in Mineral Processing, Arbiter Symposium, New Orleans, ss. 171-188.
  7. Castellan, W.G. (1971). Physical Chemistry. University of Maryland, Addison-Wesley Publishing Company. Çiçek, T., Cöcen, t. ve Samanlı, S. (1998). Gravimetric concentration of fine chromite tailings. 7th International Mineral Processing Symposium, Istanbul, Türkiye, ss. 731-736.
  8. Du Rietz, C. (1975). Chemisorption of collectors in flotation. 1st International Mineral Processing Confers s, Cagliari, ss. 4-29.
  9. Fuerstenau, M.C., Miller, J.D. ve Khun, M.C. (1984). Chemistry of Flotation. American Institute of Mining, Metallurgical and Petroleum Engineers. Gence, N. (1991). Manyezitin Yüzey Özellikleri ve Reaktif Adsorplama Mekanizması. Doktora Tezi, Anadölu Üniversitesi,
  10. Eskişehir. Güney, A., Önal, G., Doğan, Z. ve Altaş, A. (1994). Flotation of fine chromite tailings using novel techniques. 5th International Mineral Processing Symposium, Kapadokya, Türkiye, ss. 473-477.
  11. Güney, A., Önal, G. ve Çelik, M.S. (1999). A new flowsheet for processing chromite fines by column flotation and the collector adsorption mechanism. Minerals Engineering, 12, 1041-1049.
  12. Kurşun, H., Canbazoğlu, M., Aydoğan, S. ve Cebeci, Y. (1994). Beneficiation studies of Karanlıkdere chromite ore. 5tfl International Mineral Processing Symposium, Kapadokya, Türkiye, ss. 77-80.
  13. Leja, J. (1983). Surface chemistry of froth flotation. Plenum Press,
  14. New York. Manser, R.M. (1973). Handbook of Silicate Flotation. Warren Spring Laboratoiy, Stevenage. Mari, S., Okomoto, H., Hara, T. ve Asa, K. (1980). An Improved Method of Determining the Zeta Potential of Mineral Particles by Micro-Electropho-resis, Fine Particles Processing, Vol. I. Proceedings of the Int. Symp. on Fine Particles Processing, Las Vegas, Nevada,