Chlorination of Monazite

Journal Article · Fri Dec 01 04:00:00 EST 1961 · Industrial and Engineering Chemistry

DOI:https://doi.org/10.1021/ie50624a028· OSTI ID:4833618

Hilal, O. M.; Gohary, F. A. El.

A laboratory scale chlorination of Egyptian monazite sand concentrate was carried out at 900 deg C in a horizontal tube furnace, and the variables affecting the condensation and purity of the thorium chloride produced were studied. In 30 minutes, 97.8% of the monazite content was attacked. The thorium chloride condensed in the first collector at the first adjustment (850 to 375 deg C) was contaminated with 3.7% of the chlorides of uranium, iron, and phosphorus. By using the second adjustment (850 to 475 deg C) it was possible to get thorium chloride of 99.2% purity free from uranium chloride. The purity of the rare earth chlorides obtained decreased by decreasing the purity of monazite concentrate as the chlorides of calcium and magnesium are nonvolatile at the chlorinating temperature. On the other hand the degree of purity of the thorium chloride collected was very slightly affected. (P.C.H.)

• Research Organization: National Research Centre, Dokki, Cairo
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-001844
• OSTI ID: 4833618
• Journal Information: Industrial and Engineering Chemistry, Journal Name: Industrial and Engineering Chemistry Journal Issue: 12 Vol. 53; ISSN 0019-7866
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CALCIUM CHLORIDES
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHLORINATION
CONDENSERS
FURNACES
IMPURITIES
IRON CHLORIDES
LABORATORY EQUIPMENT
MAGNESIUM CHLORIDES
MIXING
MONAZITES
PARTICLES
PHOSPHORUS
QUANTITY RATIO
RARE EARTHS
SAND
TEMPERATURE
THORIUM CHLORIDES
URANIUM CHLORIDES
VOLATILITY