Title: Recovering uranium from the sulphuric acid leaching liquor containing more chlorion with anion-exchange resin SLD-225b(二) A conversion with NH_4Cl solution-elution with water process
Abstract: A new eluting-precipitation process of converting the uranyl sulfate adsorbed on the resin SLD-225b into uranyl chloride with NH_4Cl solution,eluting uranyl chloride with water,and precipitating uranyl chloride with NH_4HCO_3 is studied.Compared with the NH_4NO_3 eluting process,the new process can cut converting process of barren resin form,the eluate has higher concentration of(uranium),and the product has perfect dewatering filtration properties.When resin form is convert-ed into uranyl chloride with 4BV NH_4Cl solution in which the concentration of chloride ion is 179.8(g/L),and eluted with 3BV water,the barren resin contains uranium less than 1 mg/g,eluting efficiency is more than 99%,and the uranium concentration of eluate is more than 30 g/L under the test condition.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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