Studi Fasa dan Sifat Termal Lantanum Oksida Berbasis Monasit

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Published: Nov 30, 2019
DOI: https://doi.org/10.17146/eksplorium.2019.40.2.5646
Keywords:
monasit, La2O3, fasa, sifat termal

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Sari Hasnah Dewi
Pusat Sains dan Teknologi Bahan Maju-BATAN
Wisnu Ari Adi
Pusat Sains dan Teknologi Akselerator-BATAN
Suyanti Suyanti
Pusat Sains dan Teknologi Bahan Maju-BATAN

Abstract

Rare earth elements (REE) in Indonesia have great potency, mainly from monazite mineral. Monazite is a combination of REE-U/Th-phosphate elements which is associated with tin deposit and radioactive elements. Through BATAN incorporated program, monazite mineral is processed to become more economically valuable materials. Lanthanum (La) is a metal element, part of REE group, which has excellent properties for pigment and electromagnetic absorber. The purpose of this study is to obtain information related to the effect of calcination in high temperature on the product of monazite’s REE hydroxide (RE(OH)3) processing pilot plant, specific on La2(C4O4)3 for Certified Reference Material (CRM) La­2O3 making. The weighed material is calcined on combustion boat by using a furnace at heating temperature of 1,000 OC and 1,300 OC. Thermal decomposition is analyzed by using Thermogravimetric analysis (TGA). Material phase formation is analyzed by using X-Ray Diffraction (XRD) method. XRD analysis shows the material in final phase has been transform to 28.76 % La2O3 and 71.24 % La(OH)3.


 


 


 

Article Details

How to Cite
Dewi, S. H., Adi, W. A., & Suyanti. (2019). Studi Fasa dan Sifat Termal Lantanum Oksida Berbasis Monasit. EKSPLORIUM, 40(2), 99–104. https://doi.org/10.17146/eksplorium.2019.40.2.5646
Issue
Vol. 40 No. 2 (2019): NOVEMBER 2019
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