Study on Extraction of Ceric Oxide from Monazite Concentrate

Cerium oxide is to be recovered from monazite, which contains about 27.35% CeO2. The principal objective of this study is to be able to extract cerium oxide from monazite of Moemeik Myitsone Area. The treatment of monazite in this study involves three main steps; extraction of cerium hydroxide from monazite, solvent extraction of cerium hydroxide, and precipitation with oxalic acid and calcination of cerium oxalate.

Authors:

• Lwin Thuzar Shwe
• Nwe Nwe Soe
• Kay Thi Lwin

Keywords:

• Calcination
• Digestion
• Precipitation
• SolventExtraction

References:

[1] Molycorp, Inc. 1995, Cerium, A Guide to its Role in
Chemical Technology, Mountain Pass, CA U.S.A.
[2] Gupta C.K. and N. Krishnamurthy.2004. Extractive
Metallurgy of Rare Earths, Taylor and Francis, CRC
Press Ltd.
[3] Cuthbert F.L., 1958. Thorium Production Technology.
[4] James B. Hedrick.2002. Rare Earths.
[5] Hample, A.Clifford. 1967. Rare Metals Hand Book. 2nd
ed. New York, U.S: Robert E.Krieger Publishing
Corporation.