TERMIUM Plus®
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CONCENTRATION DEUTERIUM [2 records]
Record 1 - internal organization data 2001-06-13
Record 1, English
Record 1, Subject field(s)
- Chemistry
Record 1, Main entry term, English
- deuterium enrichment
1, record 1, English, deuterium%20enrichment
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- deuterium concentration 1, record 1, English, deuterium%20concentration
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Because the hot and cold towers of a stage are in series, the two liquid to gas flow ratios (L/G) are thus directly related and an L/G change in one tower causes an L/G change of the same direction in the other tower. Because the towers can be regarded as absorbers and strippers, and L/G increase favors deuterium enrichment in the hot tower and an L/G decrease favors deuterium enrichment in the cold tower. 1, record 1, English, - deuterium%20enrichment
Record number: 1, Textual support number: 2 CONT
If a portion of either or both of the enriched gas or liquid are fed to a second pair of cold and hot towers, further enrichment will be achieved. The final deuterium concentration will depend upon the number of cold and hot tower pairs in the process. 1, record 1, English, - deuterium%20enrichment
Record 1, French
Record 1, Domaine(s)
- Chimie
Record 1, Main entry term, French
- enrichissement en deutérium
1, record 1, French, enrichissement%20en%20deut%C3%A9rium
proposal, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- concentration du deutérium 1, record 1, French, concentration%20du%20deut%C3%A9rium
proposal, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
La concentration en tant que procédé - Lorsqu'un mélange, solide, liquide ou gazeux, contient plusieurs composants, l'enrichissement du milieu en un de ces composants prend également le nom de concentration. Notion de plateau théorique et de plateau réel - Le rôle du plateau est d'enrichir simultanément la vapeur en produit léger et le liquide en produit lourd; on a donc échange de matière et de chaleur entre mélange et liquide. On a réalisé un plateau théorique lorsque la vapeur se dégageant du plateau de rang «n» est en équilibre avec le liquide qu'elle vient de traverser, on a alors pour le constituant A : YnA = KA x nA. 2, record 1, French, - enrichissement%20en%20deut%C3%A9rium
Record number: 1, Textual support number: 2 OBS
On peut préparer le deutérium [...] directement par distillation de l'hydrogène liquide [...] Par ailleurs, l'équilibre [...] ne se réalisant pas spontanément à la température de distillation, le produit, concentré en HD, doit être réchauffé [...] et refroidi avant d'être introduit dans la section finale de concentration. 2, record 1, French, - enrichissement%20en%20deut%C3%A9rium
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1981-01-29
Record 2, English
Record 2, Subject field(s)
- Chemistry
Record 2, Main entry term, English
- deuterium concentration 1, record 2, English, deuterium%20concentration
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
As the concentration of deuterium atoms increases from natural abundance to reactor grade heavy water (95,75 mole % [Deuterium oxide], the predominant molecules are [water], HDO and finally [Deuterium oxide]. HDO is the equilibrium product of [Deuterium oxide] and [water] ... This shift in molecular composition with increasing "deuterium concentrations" is of significance in the process as will be seen later in the report. 1, record 2, English, - deuterium%20concentration
Record 2, French
Record 2, Domaine(s)
- Chimie
Record 2, Main entry term, French
- concentration en deutérium
1, record 2, French, concentration%20en%20deut%C3%A9rium
feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
Concentration (en chimie) - Ce terme peut avoir en chimie deux significations : il exprime la quantité par unité de volume de chacun des constituants présents dans un mélange, ou désigne l'opération qui aboutit à enrichir un mélange en l'un de ses constituants [...] 2, record 2, French, - concentration%20en%20deut%C3%A9rium
Record 2, Spanish
Record 2, Textual support, Spanish
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