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Mineralogy and uranium leaching of ores from Triassic Peribaltic sandstones.

Gajda D, Kiegiel K, Zakrzewska-Koltuniewicz G, Chajduk E, Bartosiewicz I, Wolkowicz S - J Radioanal Nucl Chem (2014)

Bottom Line: Satisfactory results were obtained for the alkaline leaching process.Almost 100 % of uranium was leached with alkaline carbonate solution.In post leaching solutions only uranium and small amounts of vanadium were present.

View Article: PubMed Central - PubMed

Affiliation: Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland.

ABSTRACT

The recovery of uranium and other valuable metals from Polish Peribaltic sandstones were examined. The solid-liquid extraction is the first stage of the technology of uranium production and it is crucial for the next stages of processing. In the laboratory experiments uranium was leached with efficiencies 71-100 % by acidic lixiviants. Satisfactory results were obtained for the alkaline leaching process. Almost 100 % of uranium was leached with alkaline carbonate solution. In post leaching solutions only uranium and small amounts of vanadium were present.

No MeSH data available.


Related in: MedlinePlus

Effect of concentration of iron in ore on uranium leaching efficiency. Process conditions: particle size: 0–0.2 mm, 10 % H2SO4, liquid/solid ratio of 8:1 (vol./wt. basis), 60 °C, 1 h, agitation rate: 500 rpm
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Fig12: Effect of concentration of iron in ore on uranium leaching efficiency. Process conditions: particle size: 0–0.2 mm, 10 % H2SO4, liquid/solid ratio of 8:1 (vol./wt. basis), 60 °C, 1 h, agitation rate: 500 rpm

Mentions: The efficiencies of uranium leaching with 10 % H2SO4 without the oxidizing agent with reference to concentration of iron in the ore is showed on Fig. 12.Fig. 12


Mineralogy and uranium leaching of ores from Triassic Peribaltic sandstones.

Gajda D, Kiegiel K, Zakrzewska-Koltuniewicz G, Chajduk E, Bartosiewicz I, Wolkowicz S - J Radioanal Nucl Chem (2014)

Effect of concentration of iron in ore on uranium leaching efficiency. Process conditions: particle size: 0–0.2 mm, 10 % H2SO4, liquid/solid ratio of 8:1 (vol./wt. basis), 60 °C, 1 h, agitation rate: 500 rpm
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4514638&req=5

Fig12: Effect of concentration of iron in ore on uranium leaching efficiency. Process conditions: particle size: 0–0.2 mm, 10 % H2SO4, liquid/solid ratio of 8:1 (vol./wt. basis), 60 °C, 1 h, agitation rate: 500 rpm
Mentions: The efficiencies of uranium leaching with 10 % H2SO4 without the oxidizing agent with reference to concentration of iron in the ore is showed on Fig. 12.Fig. 12

Bottom Line: Satisfactory results were obtained for the alkaline leaching process.Almost 100 % of uranium was leached with alkaline carbonate solution.In post leaching solutions only uranium and small amounts of vanadium were present.

View Article: PubMed Central - PubMed

Affiliation: Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland.

ABSTRACT

The recovery of uranium and other valuable metals from Polish Peribaltic sandstones were examined. The solid-liquid extraction is the first stage of the technology of uranium production and it is crucial for the next stages of processing. In the laboratory experiments uranium was leached with efficiencies 71-100 % by acidic lixiviants. Satisfactory results were obtained for the alkaline leaching process. Almost 100 % of uranium was leached with alkaline carbonate solution. In post leaching solutions only uranium and small amounts of vanadium were present.

No MeSH data available.


Related in: MedlinePlus