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yellow cake

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23:54 Nov 5, 2008
English to Chinese 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.

Example sentence(s):
  • 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.
  • 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.
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Summary of translations provided
5 +1黃餅
Dr JM Chen, PhD

Discussion entries: 1


Translations offered

354 days   confidence: Answerer confidence 5/5 peer agreement (net): +1

Definition from 核能發電淺談:

Example sentence(s):
  • 黃餅(yellow cake) 鈾礦經過採礦,提錬及化學處理後製成原料鈾(U3O8),俗稱又叫「黃餅」(因顏色是黃色而得名),全世界的鈾礦蘊藏量主要國家為澳洲、哈薩克、加拿大、南非。而全世界原料鈾主要生產國家:加拿大、澳洲、哈薩克、俄羅斯及非洲的尼日。 - 核能發電淺談  
  • 自然界的鈾礦含有兩種鈾的同位素,即鈾-235(佔 0.7%)與鈾-238 (佔 99.3%),其中鈾-235 才能產生核分裂反應,而鈾-238 並不會產生核分裂反應。鈾礦經採礦、提錬及化學處理後製成原料鈾(U3O8),俗稱「黃餅」(因顏色是黃色而得名)。 - ■661■ 物理雙月刊(廿九卷三)  
  • 黄饼中PO43-对TBP萃取纯化的危害性 The harmful effect of phosphate in yellow cake on the TBP purification process - iLib2  
Dr JM Chen, PhD
United Kingdom
Local time: 17:25
Native speaker of: Native in ChineseChinese, Native in EnglishEnglish

Votes in favor of/against selecting this as the best translation of the term asked
Yes  rolfo
58 days
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