Insitu activation leaching and exsitu activation-pressure leaching of zircon in acid and alkaline solutions (OLP-0095)

Srikanth, S and Kumar, Rakesh and Devi, L M and Kumar, Satender and Hait, Jhumki and Khan, Z H (2009) Insitu activation leaching and exsitu activation-pressure leaching of zircon in acid and alkaline solutions (OLP-0095). Exploratory (OLP). CSIR-NML, Jamshedpur. (Submitted)

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Abstract

Objectives The objective of this study was to explore both insitu activation - leaching in a continuous attrition mill and exsitu activation - pressure leaching of zircon in acid and alkaline solutions to develop an energy efficient low temperature process for the extraction of ZrO2. This is a sequel to an earlier project undertaken on the effect of mechanical activation on the acid and alkali dissolution kinetics of zircon. The main activities projected in this project were: • Study combined activation – alkali leaching (NaOH) of zircon in attrition mill as a function of activation time, alkali concentration and temperature. • Study the effect of mechanical activation on the alkali dissolution kinetics of zircon at elevated pressures as a function of time of activation, temperature and time of leaching. • Effect of mechanical activation on the sulfuric acid dissolution kinetics of zircon at elevated pressures as a function of time of activation, temperature and time of leaching. • Evolve a flow-sheet for the low temperature extraction of ZrO2 from zircon (ZrSiO3).

Item Type:Project Reports (Exploratory (OLP))
Official URL/DOI:http://eprint.nmlindia.org/7299
Uncontrolled Keywords:Zircon; mechanical activation; leaching
Divisions:Metal Extraction and Forming
ID Code:7299
Deposited By:Dr. A K Sahu
Deposited On:19 Aug 2015 16:22
Last Modified:19 Aug 2015 16:22
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