This is a summary report of various technical projects relating to uranium.

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Technical report. Form Abstract : "Perchlorate is extracted from aqueous solution by n-butyronitrile as ferrous 1,10-phenanthroline perchlorate. The amount of perchlorate is calculated from spectrophotometric measurement of the absorbance of the extract. Moderate to large amounts of chloride, sulfate, or nitrate cause little or no interference. Chlorate is slightly extracted but the interference can be corrected."

A semicontinuous ion exchange column was used for the pilot-scaie production of purified uranyl chloride solutions from scrap leach liquor. Continuous box mixer-settler tests demonstrated that an Aliquot-336--Solvesso 100 system will satisfactorily extract uranium from scrap leach liquor. An airless shot blaster is being used to clean slag from debries using uranium shot as the blasting medium. Plasma-spraying equipment was installed for coating graphite crucibles and molds with refractory materials. Production-size uranium ingots having fine, evenly dispersed inclusions were produced by consumableelectrode arc meiting under vacuum. Variations in uranium billet temperatures prior to rolling were found to affect the amount of recrystallization and the texture coefficients in the alpha-rolled rods. Four HAPO I and E fuel cores that were beta treated and water quenched were examined for texture gradients. G/sub 2/, G/sub 3/, and J data are tabulated. Uranium phosphide inclusions were identified in productiongrade derby metal of high phosphorus content. (auth)