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A CURRENT REVIEW ON BENEFICIATION PROCESS OF BAUXITE ORES FOR PRE-DESILICATION

Year 2018, Volume: 57 Issue: 3, 197 - 218, 01.09.2018
https://doi.org/10.30797/madencilik.457373

Abstract

Today, nearly all commercial production of alumina is obtained from standard Bayer process

using bauxite ores as a raw material. One of the most important criteria for metallurgical-grade

bauxites that can be directly fed to the Bayer process is the total silica content of bauxite.

Because, reactive silica which tends to dissolve during bauxite leaching causes excessive

caustic soda consumption and alumina losses in the Bayer process. For this reason, the reactive

silica content in bauxite plays a critical role in the viability and economics of the Bayer process.

Removing reactive silica from bauxite prior to leaching (also known as pre-desilication) is a

major focus of effort for most alumina production plants. In recent years, it has been known that

beneficiation methods such as froth flotation have been tried to pre-desilication. In this study, the

major problems caused by reactive silica in bauxite ore and several beneficiation methods used

for pre-desilication have been reviewed from the current literature. Among these methods, it has

been determined that froth flotation is more important in terms of silica removal performance and

industrial practice, and so investigations on bauxite flotation have been discussed extensively.

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ÖN DESİLİKASYON AMAÇLI BOKSİT ZENGİNLEŞTİRME İŞLEMLERİ ÜZERİNE GÜNCEL BİR DEĞERLENDİRME

Year 2018, Volume: 57 Issue: 3, 197 - 218, 01.09.2018
https://doi.org/10.30797/madencilik.457373

Abstract

Günümüzde ticari alümina üretiminin neredeyse tamamı hammadde kaynağı olarak boksit
cevherlerinin kullanıldığı Bayer prosesiyle karşılanmaya devam etmektedir. Bayer prosesine
doğrudan beslenebilir metalurjik kalitedeki boksitler için en önemli kriterlerden birisi cevherin
toplam silis miktarının bilinmesidir. Çünkü, boksit liçi sırasında çözünme eğilimi gösteren reaktif
silis aşırı miktarda kostik soda tüketimine yol açmakta ve ciddi oranda alumina kayıplarına
neden olmaktadır. Bundan dolayı boksitin reaktif silis içeriği, Bayer prosesinin etkin ve ekonomik
uygulanabilirliği üzerinde belirleyici bir rol oynamaktadır. Silis türlerinin boksitten uzaklaştırılması
işlemi (ön desilikasyon) birçok alümina üretim tesisinin üzerinde çalıştığı ana konulardan birisidir.
Son yıllarda köpük flotasyonu gibi bazı zenginleştirme yöntemlerinin ön desilikasyon amacıyla
denendiği bilinmektedir. Bu çalışmada, boksit cevherindeki reaktif silisin sebep olduğu başlıca
sorunlar ve ön desilikasyon amacıyla uygulanan birtakım zenginleştirme yöntemleri güncel
kaynaklardan derlenerek özetlenmiştir. Bu yöntemler arasında gerek silis uzaklaştırma verimi
gerekse tesis ölçeğinde uygulanabilme bakımından özellikle flotasyonun daha fazla önem
kazandığı belirlenmiş ve bu konuda geniş kapsamda bir değerlendirme yapılmıştır.

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There are 93 citations in total.

Details

Primary Language Turkish
Journal Section Research Article
Authors

Mustafa Birinci 0000-0002-1954-7837

Ramazan Gök This is me 0000-0001-5654-104X

Publication Date September 1, 2018
Submission Date January 26, 2018
Published in Issue Year 2018 Volume: 57 Issue: 3

Cite

APA Birinci, M., & Gök, R. (2018). ÖN DESİLİKASYON AMAÇLI BOKSİT ZENGİNLEŞTİRME İŞLEMLERİ ÜZERİNE GÜNCEL BİR DEĞERLENDİRME. Bilimsel Madencilik Dergisi, 57(3), 197-218. https://doi.org/10.30797/madencilik.457373
AMA Birinci M, Gök R. ÖN DESİLİKASYON AMAÇLI BOKSİT ZENGİNLEŞTİRME İŞLEMLERİ ÜZERİNE GÜNCEL BİR DEĞERLENDİRME. Mining. September 2018;57(3):197-218. doi:10.30797/madencilik.457373
Chicago Birinci, Mustafa, and Ramazan Gök. “ÖN DESİLİKASYON AMAÇLI BOKSİT ZENGİNLEŞTİRME İŞLEMLERİ ÜZERİNE GÜNCEL BİR DEĞERLENDİRME”. Bilimsel Madencilik Dergisi 57, no. 3 (September 2018): 197-218. https://doi.org/10.30797/madencilik.457373.
EndNote Birinci M, Gök R (September 1, 2018) ÖN DESİLİKASYON AMAÇLI BOKSİT ZENGİNLEŞTİRME İŞLEMLERİ ÜZERİNE GÜNCEL BİR DEĞERLENDİRME. Bilimsel Madencilik Dergisi 57 3 197–218.
IEEE M. Birinci and R. Gök, “ÖN DESİLİKASYON AMAÇLI BOKSİT ZENGİNLEŞTİRME İŞLEMLERİ ÜZERİNE GÜNCEL BİR DEĞERLENDİRME”, Mining, vol. 57, no. 3, pp. 197–218, 2018, doi: 10.30797/madencilik.457373.
ISNAD Birinci, Mustafa - Gök, Ramazan. “ÖN DESİLİKASYON AMAÇLI BOKSİT ZENGİNLEŞTİRME İŞLEMLERİ ÜZERİNE GÜNCEL BİR DEĞERLENDİRME”. Bilimsel Madencilik Dergisi 57/3 (September 2018), 197-218. https://doi.org/10.30797/madencilik.457373.
JAMA Birinci M, Gök R. ÖN DESİLİKASYON AMAÇLI BOKSİT ZENGİNLEŞTİRME İŞLEMLERİ ÜZERİNE GÜNCEL BİR DEĞERLENDİRME. Mining. 2018;57:197–218.
MLA Birinci, Mustafa and Ramazan Gök. “ÖN DESİLİKASYON AMAÇLI BOKSİT ZENGİNLEŞTİRME İŞLEMLERİ ÜZERİNE GÜNCEL BİR DEĞERLENDİRME”. Bilimsel Madencilik Dergisi, vol. 57, no. 3, 2018, pp. 197-18, doi:10.30797/madencilik.457373.
Vancouver Birinci M, Gök R. ÖN DESİLİKASYON AMAÇLI BOKSİT ZENGİNLEŞTİRME İŞLEMLERİ ÜZERİNE GÜNCEL BİR DEĞERLENDİRME. Mining. 2018;57(3):197-218.

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