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Separation Science and Technology Volume 34, 1999 - Issue 5
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Original Articles

Coagulation and Flocculation Study of Iron Ore Fines

BIMAL P. SINGH MINERAL BENEFACTION DIVISION, REGIONAL RESEARCH LABORATORY, BHUBANESWAR, 751013, ORISSA, INDIA Fax: E-mail: [email protected]
,
L. BESRA MINERAL BENEFACTION DIVISION, REGIONAL RESEARCH LABORATORY, BHUBANESWAR, 751013, ORISSA, INDIA Fax: E-mail: [email protected]
&
A. RAVI PRASAD MINERAL BENEFACTION DIVISION, REGIONAL RESEARCH LABORATORY, BHUBANESWAR, 751013, ORISSA, INDIA Fax: E-mail: [email protected]
Pages 743-753 | Received 05 Feb 1998, Published online: 02 May 2007
 
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ABSTRACT

A comparative study of the flocculation and coagulation response of an iron ore fines suspension has been carried out, and the extent of flocculation has been assessed by measurement of electrophoretic mobility, supernatant clarity, and settling rate. Of the several commercial flocculants and polyelectrolyte studied, the combination of medium molecular weight anionic flocculants Magnafloc 1011 and Rishfloc 258 (1:1), and coagulant aluminum nitrate was most effective in terms of enhancing settling rate and supernatant clarity.

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