Studies on the Beneficiation of Barite

Bhaskar Raju, G and Prabhakar, S and Rao, S Subba (2004) Studies on the Beneficiation of Barite. In: International Seminar on Mineral Processing Technology (MPT - 2004), February 19-21, 2004, Regional Research Laboratory(CSIR) Bhubaneswar, Orissa.



Barite is extensively used as drilling mud in oil exploration operations. Beneficiation of barite by flotation was investigated using cationic and anionic collectors. Commercially available fatty amines such as Armoflote 17 and Liquid B50 were tried as collectors to float gangue minerals (reverse flotation) whereas oleic acid was used for direct flotation of barite. Effect of collector concentration on flotation was studied and the results were discussed. Barite concentrate assaying 96% BaSO4 with less than 1% SiO2 could be obtained by single stage flotation using cationic collectors. Zeta-potential measurements were conducted to study the interaction of cationic collectors on silica and anionic collector on barite. While cationic collectors were found to adsorb on silica by electrostatic interaction, oleic acid was found to adsorb on barite by chemisorption. Advantage of reverse flotation over direct flotation technique was discussed.

Item Type:Conference or Workshop Item (Paper)
Official URL/DOI:
Uncontrolled Keywords:Barite; Cationic collector; Oleic acid; Adsorption and Flotation
Divisions:Mineral Processing
ID Code:6144
Deposited By:Sahu A K
Deposited On:23 Oct 2012 11:36
Last Modified:04 Dec 2013 10:20
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