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06:54 Nov 6, 2008
English to Turkish translations [PRO] Tech/Engineering - Mining & Minerals / Gems Additional field(s): Nuclear Eng/Sci
English term or phrase:yellow cake
Definition from European Nuclear Society: Yellow cake is the final product of the milling of uranium ore. It contains about 80 % of uranium oxide and is usually represented by the formula U3O8. The yellow cake produced by most modern mills is actually brown or black, not yellow; the name comes from the colour and texture of the concentrates produced by early mining operations due to impurities from ammonium diuranate (NH4)2U2O7.
The solvents are removed by evaporating in a vacuum and ammonium diuranate, (NH4)2U2O7, is precipitated by adding ammonia to neutralize the solution. The diuranate is then heated to yield a purified, solid U3O8, known as yellow cake. Kennesaw State University
On site, close to the mines, the uranium is concentrated and transformed into a yellow powder, commonly called yellow cake, which contains 75% of uranium. It is in this form that the uranium is marketed. planete-energies.com
The first stage of this process is to dissolve the yellow cake in nitric acid; solvent extraction using tributyl phosphate in a hydrocarbon solution extracts the uranium from the various impurities and then the extract is washed with dilute nitric acid to produce uranyl nitrate in a very pure form. landmarkminerals.com
Definition from Wikipedia: Yellowcakes (also called urania) are uranium concentrates obtained from leach solutions. They represent an intermediate step in the processing of uranium ores.
Yellowcake is used in the preparation of fuel for nuclear reactors, where it is processed into purified UO2 for use in fuel rods for PHWR and other systems using unenriched uranium. - Wikipedia
nur kodal Zambia Local time: 16:58 Native speaker of: Turkish PRO pts in category: 4
181 days confidence:
Definition from own experience or research: Uranyum cevherinin işlenmesi sırasında elde edilen saf olmayan uranyum oksit. Sarı renkli çökelti olarak elde edildiğinden bu ismi alır.
Kolay ve ucuz üretim olanağı sağlayan Köprübaşı cevherlerinden, bir santralın yakıt ihtiyacının yarısını karşılayacak olsa bile, 50-60 ton U308/yıl kapasiteli sarı pasta tesisinin kurulması, bu teknolojiye giriş ve güvence açısından çok önemlidir. Böyle bir görevle yükümlü Etibank'ın bütün girişimleri desteklenmelidir. - TMMOB Maden Müh. Odası
Greenpeace ekibi, içinde uranyum bulunan 'sarı pasta' kabını yerleşim bölgesinden uzağa taşıyor. - Greenpeace
Cagdas Karatas Turkey Local time: 16:58 Native speaker of: Turkish PRO pts in category: 8
Definition from Wikipedia: Yellowcake (also called urania) is a kind of uranium concentrate obtained from leach solutions, in an intermediate step in the processing of uranium ores. Yellowcake concentrates are prepared by various extraction and refining methods, depending on the types of ores. Typically yellowcakes are obtained through the milling and chemical processing of uranium ore forming a coarse powder which is insoluble in water and contains about 80% uranium oxide, which melts at approximately 2878 °C. Although uranium is one of the densest metals on Earth, yellowcake is relatively light, with a density approximately that of elemental sulfur.
Yellow cake is the final product of the milling of uranium ore. It contains about 80 % of uranium oxide and is usually represented by the formula U3O8. - Asker supplied text above
Salih1946 United States Local time: 09:58 Native speaker of: Turkish PRO pts in category: 24
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