999 resultados para CoBRA - computerised bibliographic record actions
Resumo:
The investigation of the electrolytic precipitation of uranium from a sample of acid leach liquor in an ion exchange membrane cell has been conducted on leach liquor from the Vitro Co. This leach liquor can be treated by the above means to precipitate essentially all the uranium and simultaneously to produce additional acid which may be used for further leaching.
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Fifty oil soluble amines were screened for possible use as extractants for uranium from sulfuric acid solutions. The most promising of these were studied further to obtain the optimum conditions for operation of such a process. Kerosene was used as the diluent.
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"Western Laboratories ; Arthur D. Little, Inc ; San Francisco, Calif."
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"Classification cancelled or changed to UNCLASSIFIED by authority of TIS Change Notice No. 1849 by ASB TISOR, date 8/14/55."
Resumo:
The continuous production of beryllium metal by low-temperature fused salt electrolysis into a continuously circulating mercury cathode has been demonstrated. The product is amenable to direct hot pressing or to powder preparation by distilling off the mercury. The production of pure beryllium chloride in good yield by direct chlorination of beryllium oxide has also been demonstrated.
Resumo:
The slip-casting technique, which is successfully employed in the ceramic industry, was utilized to produce sintered stainless steel components experimentally. The procedure used is described, along with an evaluation of the physical and mechanical properties of the samples produced. Specimens were made with properties comparable to those of wrought stainless steel and of cold pressed and sintered steel powder.
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The consumable electrode arc melting of cold-compacted thorium powder has been developed to produce dense, clean and soft ingots which can be hot rolled without cracking. By using a water-cooled copper crucible, contamination has been prevented and resultant ingots cleaner than the original powder have been produced.
Resumo:
Experimental evidence is presented which proves that voids formed during diffusion in brass are heterogeneously nucleated. The nuclei appear to be oxide particles, probably ZnO. When these are removed by re-melting, voids practically do not form upon subsequent dezincification. Brass which had been freed of void nucleation catalysts exhibited a considerably reduced tendency for grain boundary cracking during creep, and increased stress-rupture life.
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"Contract AT-30-1 GEN-366."
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"United States Atomic Energy Commission, Savannah River Operations Office, Contract AT (38-1) 213, supplements 1 & 2."
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Issues are simultaneously published in both the "TID" and "SL" Series, but numbering is different.
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"January 1965."
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"March 1965."
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"UC-80, Reactors--General ; TID-4500 (14th Edition) and Supplement."
Resumo:
"SRI Project No. GU-2164."