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SEPARATION OF SMALL AMOUNTS OF RARE EARTHS FROM MINERALS AND ROCKS BY CHLORINATION WITH CARBON TETRACHLORIDE

N. Iordanov, Khr. Daiev

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Abstract

By chlorination of the separated rare earth, iron, and aluminum oxides with carbon tetrachloride at 500--600 deg C, it is possible to quantitatively separate iron, aluminum, and other elements which interfere in the photometric determination of rare earths with arsenazo. The method developed permits the determination of large quantities of rare earths (up to 20 gamma ) in minerals and rocks in a 0.5--1 g sample. (auth)

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By chlorination of the separated rare earth, iron, and aluminum oxides with carbon tetrachloride at 500--600 deg C, it is possible to quantitatively separate iron, aluminum, and other elements which interfere in the photometric determination of rare earths with arsenazo. The method developed permits the determination of large quantities of rare earths (up to 20 gamma ) in minerals and rocks in a 0.5--1 g sample. (auth)

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Available abstract

By chlorination of the separated rare earth, iron, and aluminum oxides with carbon tetrachloride at 500--600 deg C, it is possible to quantitatively separate iron, aluminum, and other elements which interfere in the photometric determination of rare earths with arsenazo. The method developed permits the determination of large quantities of rare earths (up to 20 gamma ) in minerals and rocks in a 0.5--1 g sample. (auth)

Key concepts: Carbon tetrachloride, Rare earth, Chemistry, Carbon fibers, Mineral, Inorganic chemistry, Radiochemistry, Mineralogy

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SEPARATION OF SMALL AMOUNTS OF RARE EARTHS FROM MINERALS AND ROCKS BY CHLORINATION WITH CARBON TETRACHLORIDE — Research Paper | ScholarLens